./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 48c9605d Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:29:33,815 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:29:33,871 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:29:33,878 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:29:33,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:29:33,898 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:29:33,899 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:29:33,899 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:29:33,900 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:29:33,900 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:29:33,901 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:29:33,901 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:29:33,901 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:29:33,901 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:29:33,901 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:29:33,902 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:29:33,902 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:29:33,902 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:29:33,902 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:29:33,902 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:29:33,902 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:29:33,902 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:29:33,902 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:29:33,903 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:29:33,903 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:29:33,904 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:29:33,904 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:29:33,904 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:29:33,904 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:29:33,904 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:29:33,904 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:29:33,904 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:29:33,904 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:29:33,905 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2025-02-08 08:29:34,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:29:34,130 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:29:34,132 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:29:34,132 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:29:34,133 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:29:34,133 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2025-02-08 08:29:35,363 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/540a03aa7/e2f7dc8b97ed4f7583cdcb2fad79ced6/FLAG94ec16c62 [2025-02-08 08:29:35,660 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:29:35,661 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2025-02-08 08:29:35,678 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/540a03aa7/e2f7dc8b97ed4f7583cdcb2fad79ced6/FLAG94ec16c62 [2025-02-08 08:29:35,692 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/540a03aa7/e2f7dc8b97ed4f7583cdcb2fad79ced6 [2025-02-08 08:29:35,694 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:29:35,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:29:35,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:29:35,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:29:35,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:29:35,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:29:35" (1/1) ... [2025-02-08 08:29:35,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5867074e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:35, skipping insertion in model container [2025-02-08 08:29:35,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:29:35" (1/1) ... [2025-02-08 08:29:35,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:29:36,014 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:36,015 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:36,015 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:36,015 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:36,035 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:29:36,061 ERROR L321 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types of different sizes while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2025-02-08 08:29:36,061 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@3c1724da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:36, skipping insertion in model container [2025-02-08 08:29:36,062 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:29:36,062 INFO L186 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.procedureinliner [2025-02-08 08:29:36,063 INFO L158 Benchmark]: Toolchain (without parser) took 366.59ms. Allocated memory is still 167.8MB. Free memory was 130.8MB in the beginning and 114.5MB in the end (delta: 16.3MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:29:36,063 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:29:36,065 INFO L158 Benchmark]: CACSL2BoogieTranslator took 364.92ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 114.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2025-02-08 08:29:36,065 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 201.3MB. Free memory is still 126.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 364.92ms. Allocated memory is still 167.8MB. Free memory was 130.3MB in the beginning and 114.5MB in the end (delta: 15.8MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 1031]: 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/goblint-regression/09-regions_21-arrayloop2_nr.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:29:37,945 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:29:38,060 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2025-02-08 08:29:38,066 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:29:38,070 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:29:38,091 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:29:38,095 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:29:38,095 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:29:38,096 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:29:38,096 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:29:38,096 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:29:38,097 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:29:38,097 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:29:38,097 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:29:38,097 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:29:38,097 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:29:38,097 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:29:38,098 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:29:38,098 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:29:38,098 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:29:38,098 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:29:38,098 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:29:38,098 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:29:38,098 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:29:38,099 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:29:38,099 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:29:38,100 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:29:38,100 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:29:38,100 INFO L153 SettingsManager]: * Trace refinement strategy=FOX [2025-02-08 08:29:38,100 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2025-02-08 08:29:38,100 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:29:38,101 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:29:38,101 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:29:38,101 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:29:38,101 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-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> 52746884466210ec366bc04a3a6cb03f413619353c73143d79c1024e676e598e [2025-02-08 08:29:38,347 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:29:38,355 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:29:38,357 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:29:38,357 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:29:38,358 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:29:38,358 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2025-02-08 08:29:39,669 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c80664691/973dc2191c3547d3b7af431b624d82e2/FLAG94db87b9b [2025-02-08 08:29:39,904 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:29:39,905 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/goblint-regression/09-regions_21-arrayloop2_nr.i [2025-02-08 08:29:39,916 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c80664691/973dc2191c3547d3b7af431b624d82e2/FLAG94db87b9b [2025-02-08 08:29:40,234 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/c80664691/973dc2191c3547d3b7af431b624d82e2 [2025-02-08 08:29:40,236 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:29:40,238 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:29:40,240 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:29:40,240 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:29:40,244 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:29:40,245 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,245 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ef76901 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40, skipping insertion in model container [2025-02-08 08:29:40,246 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,307 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:29:40,561 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,561 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,562 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,562 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,583 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:29:40,610 INFO L197 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2025-02-08 08:29:40,622 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:29:40,649 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,649 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,649 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,650 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,662 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:29:40,678 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:29:40,709 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,709 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,710 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,710 WARN L1731 CHandler]: Possible shadowing of function new [2025-02-08 08:29:40,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:29:40,783 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:29:40,783 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40 WrapperNode [2025-02-08 08:29:40,784 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:29:40,785 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:29:40,785 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:29:40,786 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:29:40,790 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,842 INFO L138 Inliner]: procedures = 274, calls = 95, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 169 [2025-02-08 08:29:40,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:29:40,843 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:29:40,843 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:29:40,843 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:29:40,849 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,849 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,852 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,871 INFO L175 MemorySlicer]: Split 84 memory accesses to 1 slices as follows [84]. 100 percent of accesses are in the largest equivalence class. The 70 initializations are split as follows [70]. The 10 writes are split as follows [10]. [2025-02-08 08:29:40,875 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,875 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,882 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,883 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,885 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,885 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,888 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:29:40,888 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:29:40,888 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:29:40,888 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:29:40,889 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (1/1) ... [2025-02-08 08:29:40,893 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:29:40,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:40,914 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-08 08:29:40,925 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-08 08:29:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4#0 [2025-02-08 08:29:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure f [2025-02-08 08:29:40,941 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2025-02-08 08:29:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2025-02-08 08:29:40,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4#0 [2025-02-08 08:29:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2025-02-08 08:29:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4#0 [2025-02-08 08:29:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2025-02-08 08:29:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2025-02-08 08:29:40,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2025-02-08 08:29:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:29:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2025-02-08 08:29:40,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:29:40,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:29:40,945 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-08 08:29:41,069 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:29:41,070 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:29:41,627 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1018: SUMMARY for call write~$Pointer$#0(list_add_~next~0#1.base, list_add_~next~0#1.offset, list_add_~new#1.base, list_add_~new#1.offset, 4bv32); srcloc: null [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1018: assume !(1bv1 == #valid[list_add_~new#1.base]); [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1018: assume !((~bvule~32(~bvadd~32(4bv32, list_add_~new#1.offset), #length[list_add_~new#1.base]) && ~bvule~32(list_add_~new#1.offset, ~bvadd~32(4bv32, list_add_~new#1.offset))) && ~bvule~32(0bv32, list_add_~new#1.offset)); [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1019: SUMMARY for call write~$Pointer$#0(list_add_~head#1.base, list_add_~head#1.offset, list_add_~new#1.base, ~bvadd~32(4bv32, list_add_~new#1.offset), 4bv32); srcloc: null [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1019: assume !(1bv1 == #valid[list_add_~new#1.base]); [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1019: assume !((~bvule~32(~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~new#1.offset)), #length[list_add_~new#1.base]) && ~bvule~32(~bvadd~32(4bv32, list_add_~new#1.offset), ~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~new#1.offset)))) && ~bvule~32(0bv32, ~bvadd~32(4bv32, list_add_~new#1.offset))); [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1020: havoc list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset, list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, list_add_~next~0#1.base, list_add_~next~0#1.offset; [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1020-1: SUMMARY for call write~$Pointer$#0(list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, 4bv32); srcloc: null [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1020-1: assume !(1bv1 == #valid[list_add_~head#1.base]); [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1020-1: assume !((~bvule~32(~bvadd~32(4bv32, list_add_~head#1.offset), #length[list_add_~head#1.base]) && ~bvule~32(list_add_~head#1.offset, ~bvadd~32(4bv32, list_add_~head#1.offset))) && ~bvule~32(0bv32, list_add_~head#1.offset)); [2025-02-08 08:29:41,628 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-1: havoc main_#t~post13#1; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-2: main_~j~1#1 := ~bvadd~32(1bv32, main_#t~post13#1); [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-3: assume { :end_inline_list_add } true;main_#t~post13#1 := main_~j~1#1; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-4: havoc list_add_#in~new#1.base, list_add_#in~new#1.offset, list_add_#in~head#1.base, list_add_#in~head#1.offset; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-5: havoc list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset, list_add_~new#1.base, list_add_~new#1.offset, list_add_~head#1.base, list_add_~head#1.offset, list_add_~next~0#1.base, list_add_~next~0#1.offset; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-6: assume { :end_inline_new } true;assume { :begin_inline_list_add } true;list_add_#in~new#1.base, list_add_#in~new#1.offset, list_add_#in~head#1.base, list_add_#in~head#1.offset := main_#t~ret12#1.base, ~bvadd~32(4bv32, main_#t~ret12#1.offset), ~#c~0.base, ~bvadd~32(~#c~0.offset, ~bvmul~32(8bv32, main_~i~0#1)); [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-7: havoc new_#in~x#1; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-8: havoc new_#t~malloc2#1.base, new_#t~malloc2#1.offset, new_~x#1, new_~p~0#1.base, new_~p~0#1.offset; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1047-9: main_#t~ret12#1.base, main_#t~ret12#1.offset := new_#res#1.base, new_#res#1.offset; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015: list_add_~head#1.base, list_add_~head#1.offset := list_add_#in~head#1.base, list_add_#in~head#1.offset; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1015-1: list_add_~new#1.base, list_add_~new#1.offset := list_add_#in~new#1.base, list_add_#in~new#1.offset; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016: havoc list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset; [2025-02-08 08:29:41,629 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016-1: list_add_~next~0#1.base, list_add_~next~0#1.offset := list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset; [2025-02-08 08:29:41,630 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016-2: SUMMARY for call list_add_#t~mem3#1.base, list_add_#t~mem3#1.offset := read~$Pointer$#0(list_add_~head#1.base, list_add_~head#1.offset, 4bv32); srcloc: null [2025-02-08 08:29:41,630 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016-2: assume !(1bv1 == #valid[list_add_~head#1.base]); [2025-02-08 08:29:41,630 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1016-2: assume !((~bvule~32(~bvadd~32(4bv32, list_add_~head#1.offset), #length[list_add_~head#1.base]) && ~bvule~32(list_add_~head#1.offset, ~bvadd~32(4bv32, list_add_~head#1.offset))) && ~bvule~32(0bv32, list_add_~head#1.offset)); [2025-02-08 08:29:41,630 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1017: SUMMARY for call write~$Pointer$#0(list_add_~new#1.base, list_add_~new#1.offset, list_add_~next~0#1.base, ~bvadd~32(4bv32, list_add_~next~0#1.offset), 4bv32); srcloc: null [2025-02-08 08:29:41,630 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1017: assume !(1bv1 == #valid[list_add_~next~0#1.base]); [2025-02-08 08:29:41,630 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L1017: assume !((~bvule~32(~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~next~0#1.offset)), #length[list_add_~next~0#1.base]) && ~bvule~32(~bvadd~32(4bv32, list_add_~next~0#1.offset), ~bvadd~32(4bv32, ~bvadd~32(4bv32, list_add_~next~0#1.offset)))) && ~bvule~32(0bv32, ~bvadd~32(4bv32, list_add_~next~0#1.offset))); [2025-02-08 08:29:41,631 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:29:41,631 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:29:42,827 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:29:42,827 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:29:42,828 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:29:42 BoogieIcfgContainer [2025-02-08 08:29:42,828 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:29:42,830 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:29:42,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:29:42,834 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:29:42,834 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:29:40" (1/3) ... [2025-02-08 08:29:42,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc2abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:29:42, skipping insertion in model container [2025-02-08 08:29:42,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:29:40" (2/3) ... [2025-02-08 08:29:42,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4cc2abb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:29:42, skipping insertion in model container [2025-02-08 08:29:42,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:29:42" (3/3) ... [2025-02-08 08:29:42,838 INFO L128 eAbstractionObserver]: Analyzing ICFG 09-regions_21-arrayloop2_nr.i [2025-02-08 08:29:42,848 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:29:42,849 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG 09-regions_21-arrayloop2_nr.i that has 2 procedures, 46 locations, 1 initial locations, 4 loop locations, and 29 error locations. [2025-02-08 08:29:42,849 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:29:42,913 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2025-02-08 08:29:42,935 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 70 transitions, 148 flow [2025-02-08 08:29:42,969 INFO L124 PetriNetUnfolderBase]: 5/68 cut-off events. [2025-02-08 08:29:42,970 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:29:42,974 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75 conditions, 68 events. 5/68 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 210 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 49. Up to 2 conditions per place. [2025-02-08 08:29:42,975 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 70 transitions, 148 flow [2025-02-08 08:29:42,977 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 69 places, 67 transitions, 140 flow [2025-02-08 08:29:42,985 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:29:42,994 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;@27fe4b36, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:29:42,994 INFO L334 AbstractCegarLoop]: Starting to check reachability of 37 error locations. [2025-02-08 08:29:43,000 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:29:43,000 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2025-02-08 08:29:43,000 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:29:43,000 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:29:43,001 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:29:43,001 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2025-02-08 08:29:43,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:29:43,005 INFO L85 PathProgramCache]: Analyzing trace with hash 423416, now seen corresponding path program 1 times [2025-02-08 08:29:43,013 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:29:43,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1828888456] [2025-02-08 08:29:43,015 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:29:43,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:43,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:43,017 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:29:43,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2025-02-08 08:29:43,093 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:29:43,207 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:29:43,207 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:29:43,208 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:29:43,224 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 08:29:43,226 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:29:43,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:29:43,268 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:29:43,269 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:29:43,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828888456] [2025-02-08 08:29:43,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828888456] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:29:43,269 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:29:43,269 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:29:43,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785435554] [2025-02-08 08:29:43,271 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:29:43,275 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:29:43,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:29:43,298 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:29:43,299 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:29:43,480 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 33 out of 70 [2025-02-08 08:29:43,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 140 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:43,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:29:43,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 33 of 70 [2025-02-08 08:29:43,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:29:43,838 INFO L124 PetriNetUnfolderBase]: 388/848 cut-off events. [2025-02-08 08:29:43,839 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:29:43,842 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1474 conditions, 848 events. 388/848 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4906 event pairs, 287 based on Foata normal form. 1/716 useless extension candidates. Maximal degree in co-relation 1440. Up to 603 conditions per place. [2025-02-08 08:29:43,853 INFO L140 encePairwiseOnDemand]: 63/70 looper letters, 29 selfloop transitions, 3 changer transitions 0/63 dead transitions. [2025-02-08 08:29:43,853 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 63 transitions, 196 flow [2025-02-08 08:29:43,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:29:43,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:29:43,874 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 168 transitions. [2025-02-08 08:29:43,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6 [2025-02-08 08:29:43,877 INFO L175 Difference]: Start difference. First operand has 69 places, 67 transitions, 140 flow. Second operand 4 states and 168 transitions. [2025-02-08 08:29:43,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 63 transitions, 196 flow [2025-02-08 08:29:43,884 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 63 transitions, 194 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:29:43,889 INFO L231 Difference]: Finished difference. Result has 66 places, 63 transitions, 136 flow [2025-02-08 08:29:43,891 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=136, PETRI_PLACES=66, PETRI_TRANSITIONS=63} [2025-02-08 08:29:43,893 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -3 predicate places. [2025-02-08 08:29:43,896 INFO L471 AbstractCegarLoop]: Abstraction has has 66 places, 63 transitions, 136 flow [2025-02-08 08:29:43,897 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:43,897 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:29:43,897 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2025-02-08 08:29:43,920 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 [2025-02-08 08:29:44,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:44,098 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2025-02-08 08:29:44,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:29:44,099 INFO L85 PathProgramCache]: Analyzing trace with hash 423417, now seen corresponding path program 1 times [2025-02-08 08:29:44,100 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:29:44,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [920956544] [2025-02-08 08:29:44,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:29:44,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:44,101 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:44,107 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:29:44,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-02-08 08:29:44,202 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 3 statements into 1 equivalence classes. [2025-02-08 08:29:44,467 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 3 of 3 statements. [2025-02-08 08:29:44,467 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:29:44,467 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:29:44,497 INFO L256 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 9 conjuncts are in the unsatisfiable core [2025-02-08 08:29:44,498 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:29:44,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:29:44,573 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:29:44,573 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:29:44,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920956544] [2025-02-08 08:29:44,573 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920956544] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:29:44,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:29:44,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:29:44,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249239783] [2025-02-08 08:29:44,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:29:44,574 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:29:44,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:29:44,574 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:29:44,575 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:29:44,686 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 70 [2025-02-08 08:29:44,686 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 63 transitions, 136 flow. Second operand has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:44,687 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:29:44,687 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 70 [2025-02-08 08:29:44,687 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:29:44,962 INFO L124 PetriNetUnfolderBase]: 389/853 cut-off events. [2025-02-08 08:29:44,963 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:29:44,964 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1489 conditions, 853 events. 389/853 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4850 event pairs, 287 based on Foata normal form. 3/724 useless extension candidates. Maximal degree in co-relation 1461. Up to 608 conditions per place. [2025-02-08 08:29:44,970 INFO L140 encePairwiseOnDemand]: 62/70 looper letters, 33 selfloop transitions, 5 changer transitions 0/67 dead transitions. [2025-02-08 08:29:44,970 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 67 transitions, 224 flow [2025-02-08 08:29:44,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:29:44,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:29:44,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 181 transitions. [2025-02-08 08:29:44,974 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6464285714285715 [2025-02-08 08:29:44,974 INFO L175 Difference]: Start difference. First operand has 66 places, 63 transitions, 136 flow. Second operand 4 states and 181 transitions. [2025-02-08 08:29:44,974 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 67 transitions, 224 flow [2025-02-08 08:29:44,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 67 transitions, 214 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:29:44,977 INFO L231 Difference]: Finished difference. Result has 68 places, 67 transitions, 169 flow [2025-02-08 08:29:44,978 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=169, PETRI_PLACES=68, PETRI_TRANSITIONS=67} [2025-02-08 08:29:44,978 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2025-02-08 08:29:44,978 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 67 transitions, 169 flow [2025-02-08 08:29:44,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.75) internal successors, (143), 4 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:44,978 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:29:44,979 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:29:44,992 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 [2025-02-08 08:29:45,179 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:45,179 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2025-02-08 08:29:45,180 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:29:45,180 INFO L85 PathProgramCache]: Analyzing trace with hash -270563231, now seen corresponding path program 1 times [2025-02-08 08:29:45,181 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:29:45,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [125023977] [2025-02-08 08:29:45,181 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:29:45,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:45,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:45,185 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:29:45,187 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-02-08 08:29:45,258 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:29:45,365 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:29:45,365 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:29:45,365 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:29:45,379 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-02-08 08:29:45,380 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:29:45,398 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2025-02-08 08:29:45,406 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:29:45,406 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:29:45,406 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:29:45,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125023977] [2025-02-08 08:29:45,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125023977] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:29:45,407 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:29:45,407 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:29:45,407 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2068048843] [2025-02-08 08:29:45,407 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:29:45,407 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:29:45,407 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:29:45,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:29:45,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:29:45,450 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 70 [2025-02-08 08:29:45,451 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 67 transitions, 169 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:45,451 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:29:45,451 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 70 [2025-02-08 08:29:45,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:29:45,707 INFO L124 PetriNetUnfolderBase]: 389/852 cut-off events. [2025-02-08 08:29:45,708 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-08 08:29:45,709 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1497 conditions, 852 events. 389/852 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4864 event pairs, 287 based on Foata normal form. 0/718 useless extension candidates. Maximal degree in co-relation 1467. Up to 604 conditions per place. [2025-02-08 08:29:45,718 INFO L140 encePairwiseOnDemand]: 68/70 looper letters, 32 selfloop transitions, 2 changer transitions 0/66 dead transitions. [2025-02-08 08:29:45,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 66 transitions, 235 flow [2025-02-08 08:29:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:29:45,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:29:45,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2025-02-08 08:29:45,720 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2025-02-08 08:29:45,720 INFO L175 Difference]: Start difference. First operand has 68 places, 67 transitions, 169 flow. Second operand 3 states and 145 transitions. [2025-02-08 08:29:45,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 66 transitions, 235 flow [2025-02-08 08:29:45,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 66 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:29:45,721 INFO L231 Difference]: Finished difference. Result has 68 places, 66 transitions, 168 flow [2025-02-08 08:29:45,721 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=66, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=68, PETRI_TRANSITIONS=66} [2025-02-08 08:29:45,722 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2025-02-08 08:29:45,722 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 66 transitions, 168 flow [2025-02-08 08:29:45,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:45,722 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:29:45,722 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2025-02-08 08:29:45,735 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 [2025-02-08 08:29:45,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:45,928 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2025-02-08 08:29:45,929 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:29:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash -270563230, now seen corresponding path program 1 times [2025-02-08 08:29:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:29:45,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [699547048] [2025-02-08 08:29:45,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:29:45,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:45,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:45,933 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:29:45,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-02-08 08:29:46,017 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 6 statements into 1 equivalence classes. [2025-02-08 08:29:46,131 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 6 of 6 statements. [2025-02-08 08:29:46,131 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:29:46,131 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:29:46,147 INFO L256 TraceCheckSpWp]: Trace formula consists of 298 conjuncts, 4 conjuncts are in the unsatisfiable core [2025-02-08 08:29:46,148 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:29:46,153 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:29:46,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:29:46,161 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:29:46,161 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:29:46,161 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [699547048] [2025-02-08 08:29:46,161 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [699547048] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:29:46,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:29:46,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:29:46,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486715624] [2025-02-08 08:29:46,162 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:29:46,162 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:29:46,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:29:46,162 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:29:46,162 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:29:46,211 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 70 [2025-02-08 08:29:46,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 66 transitions, 168 flow. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:46,212 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:29:46,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 70 [2025-02-08 08:29:46,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:29:46,379 INFO L124 PetriNetUnfolderBase]: 389/851 cut-off events. [2025-02-08 08:29:46,380 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 08:29:46,381 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1496 conditions, 851 events. 389/851 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4850 event pairs, 287 based on Foata normal form. 0/719 useless extension candidates. Maximal degree in co-relation 1476. Up to 604 conditions per place. [2025-02-08 08:29:46,384 INFO L140 encePairwiseOnDemand]: 68/70 looper letters, 32 selfloop transitions, 2 changer transitions 0/65 dead transitions. [2025-02-08 08:29:46,384 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 65 transitions, 234 flow [2025-02-08 08:29:46,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:29:46,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:29:46,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 145 transitions. [2025-02-08 08:29:46,385 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6904761904761905 [2025-02-08 08:29:46,385 INFO L175 Difference]: Start difference. First operand has 68 places, 66 transitions, 168 flow. Second operand 3 states and 145 transitions. [2025-02-08 08:29:46,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 65 transitions, 234 flow [2025-02-08 08:29:46,386 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 65 transitions, 232 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:29:46,387 INFO L231 Difference]: Finished difference. Result has 68 places, 65 transitions, 168 flow [2025-02-08 08:29:46,388 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=168, PETRI_PLACES=68, PETRI_TRANSITIONS=65} [2025-02-08 08:29:46,388 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -1 predicate places. [2025-02-08 08:29:46,389 INFO L471 AbstractCegarLoop]: Abstraction has has 68 places, 65 transitions, 168 flow [2025-02-08 08:29:46,389 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:46,389 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:29:46,389 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:29:46,403 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2025-02-08 08:29:46,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:46,593 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2025-02-08 08:29:46,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:29:46,594 INFO L85 PathProgramCache]: Analyzing trace with hash 202474914, now seen corresponding path program 1 times [2025-02-08 08:29:46,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:29:46,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1021628291] [2025-02-08 08:29:46,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:29:46,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:46,594 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:46,598 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:29:46,599 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-02-08 08:29:46,686 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:29:46,791 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:29:46,792 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:29:46,792 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:29:46,807 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 5 conjuncts are in the unsatisfiable core [2025-02-08 08:29:46,809 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:29:46,813 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 7 [2025-02-08 08:29:46,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:29:46,825 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:29:46,825 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:29:46,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1021628291] [2025-02-08 08:29:46,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1021628291] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:29:46,825 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:29:46,825 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:29:46,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714168921] [2025-02-08 08:29:46,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:29:46,826 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:29:46,826 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:29:46,826 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:29:46,826 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:29:46,885 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 32 out of 70 [2025-02-08 08:29:46,886 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 65 transitions, 168 flow. Second operand has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:46,886 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:29:46,886 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 32 of 70 [2025-02-08 08:29:46,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:29:47,199 INFO L124 PetriNetUnfolderBase]: 389/849 cut-off events. [2025-02-08 08:29:47,200 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2025-02-08 08:29:47,210 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1499 conditions, 849 events. 389/849 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4858 event pairs, 287 based on Foata normal form. 1/721 useless extension candidates. Maximal degree in co-relation 1478. Up to 604 conditions per place. [2025-02-08 08:29:47,220 INFO L140 encePairwiseOnDemand]: 64/70 looper letters, 30 selfloop transitions, 6 changer transitions 0/63 dead transitions. [2025-02-08 08:29:47,220 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 63 transitions, 236 flow [2025-02-08 08:29:47,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2025-02-08 08:29:47,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2025-02-08 08:29:47,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 194 transitions. [2025-02-08 08:29:47,222 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5542857142857143 [2025-02-08 08:29:47,222 INFO L175 Difference]: Start difference. First operand has 68 places, 65 transitions, 168 flow. Second operand 5 states and 194 transitions. [2025-02-08 08:29:47,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 63 transitions, 236 flow [2025-02-08 08:29:47,224 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 63 transitions, 234 flow, removed 0 selfloop flow, removed 1 redundant places. [2025-02-08 08:29:47,228 INFO L231 Difference]: Finished difference. Result has 69 places, 63 transitions, 174 flow [2025-02-08 08:29:47,228 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=174, PETRI_PLACES=69, PETRI_TRANSITIONS=63} [2025-02-08 08:29:47,228 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, 0 predicate places. [2025-02-08 08:29:47,230 INFO L471 AbstractCegarLoop]: Abstraction has has 69 places, 63 transitions, 174 flow [2025-02-08 08:29:47,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.75) internal successors, (135), 4 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:47,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:29:47,230 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:29:47,241 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-02-08 08:29:47,431 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:47,431 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2025-02-08 08:29:47,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:29:47,432 INFO L85 PathProgramCache]: Analyzing trace with hash 202474915, now seen corresponding path program 1 times [2025-02-08 08:29:47,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:29:47,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1431652430] [2025-02-08 08:29:47,433 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:29:47,433 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:47,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:47,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:29:47,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2025-02-08 08:29:47,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:29:47,654 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:29:47,654 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:29:47,654 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:29:47,669 INFO L256 TraceCheckSpWp]: Trace formula consists of 324 conjuncts, 8 conjuncts are in the unsatisfiable core [2025-02-08 08:29:47,670 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:29:47,676 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 5 [2025-02-08 08:29:47,710 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:29:47,710 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:29:47,710 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:29:47,710 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1431652430] [2025-02-08 08:29:47,710 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1431652430] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:29:47,710 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:29:47,711 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:29:47,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [746108424] [2025-02-08 08:29:47,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:29:47,711 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:29:47,714 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:29:47,715 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:29:47,715 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:29:47,804 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 70 [2025-02-08 08:29:47,804 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 63 transitions, 174 flow. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:47,804 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:29:47,804 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 70 [2025-02-08 08:29:47,804 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:29:47,978 INFO L124 PetriNetUnfolderBase]: 389/847 cut-off events. [2025-02-08 08:29:47,979 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2025-02-08 08:29:47,980 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 847 events. 389/847 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 4819 event pairs, 287 based on Foata normal form. 2/720 useless extension candidates. Maximal degree in co-relation 1465. Up to 606 conditions per place. [2025-02-08 08:29:47,982 INFO L140 encePairwiseOnDemand]: 66/70 looper letters, 33 selfloop transitions, 0 changer transitions 4/61 dead transitions. [2025-02-08 08:29:47,982 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 61 transitions, 242 flow [2025-02-08 08:29:47,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:29:47,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:29:47,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 170 transitions. [2025-02-08 08:29:47,984 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6071428571428571 [2025-02-08 08:29:47,984 INFO L175 Difference]: Start difference. First operand has 69 places, 63 transitions, 174 flow. Second operand 4 states and 170 transitions. [2025-02-08 08:29:47,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 61 transitions, 242 flow [2025-02-08 08:29:47,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 61 transitions, 231 flow, removed 0 selfloop flow, removed 3 redundant places. [2025-02-08 08:29:47,985 INFO L231 Difference]: Finished difference. Result has 67 places, 57 transitions, 142 flow [2025-02-08 08:29:47,985 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=142, PETRI_PLACES=67, PETRI_TRANSITIONS=57} [2025-02-08 08:29:47,986 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -2 predicate places. [2025-02-08 08:29:47,986 INFO L471 AbstractCegarLoop]: Abstraction has has 67 places, 57 transitions, 142 flow [2025-02-08 08:29:47,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 4 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:47,986 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:29:47,986 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2025-02-08 08:29:47,998 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2025-02-08 08:29:48,186 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:48,187 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE, fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 34 more)] === [2025-02-08 08:29:48,187 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:29:48,187 INFO L85 PathProgramCache]: Analyzing trace with hash 202472869, now seen corresponding path program 1 times [2025-02-08 08:29:48,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy FOX [2025-02-08 08:29:48,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1530234026] [2025-02-08 08:29:48,188 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:29:48,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:48,188 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:29:48,190 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-02-08 08:29:48,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2025-02-08 08:29:48,236 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-02-08 08:29:48,333 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-02-08 08:29:48,333 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:29:48,333 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:29:48,346 INFO L256 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 2 conjuncts are in the unsatisfiable core [2025-02-08 08:29:48,346 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-02-08 08:29:48,352 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-08 08:29:48,352 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2025-02-08 08:29:48,352 INFO L136 FreeRefinementEngine]: Strategy FOX found an infeasible trace [2025-02-08 08:29:48,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530234026] [2025-02-08 08:29:48,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530234026] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:29:48,352 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:29:48,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-08 08:29:48,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505947508] [2025-02-08 08:29:48,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:29:48,353 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:29:48,353 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FOX [2025-02-08 08:29:48,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:29:48,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:29:48,353 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 70 [2025-02-08 08:29:48,354 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 57 transitions, 142 flow. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:48,354 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:29:48,354 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 70 [2025-02-08 08:29:48,354 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:29:48,371 INFO L124 PetriNetUnfolderBase]: 0/4 cut-off events. [2025-02-08 08:29:48,371 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2025-02-08 08:29:48,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17 conditions, 4 events. 0/4 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 1. Compared 0 event pairs, 0 based on Foata normal form. 1/5 useless extension candidates. Maximal degree in co-relation 0. Up to 3 conditions per place. [2025-02-08 08:29:48,372 INFO L140 encePairwiseOnDemand]: 68/70 looper letters, 0 selfloop transitions, 0 changer transitions 4/4 dead transitions. [2025-02-08 08:29:48,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 4 transitions, 24 flow [2025-02-08 08:29:48,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:29:48,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:29:48,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 121 transitions. [2025-02-08 08:29:48,373 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5761904761904761 [2025-02-08 08:29:48,373 INFO L175 Difference]: Start difference. First operand has 67 places, 57 transitions, 142 flow. Second operand 3 states and 121 transitions. [2025-02-08 08:29:48,373 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 4 transitions, 24 flow [2025-02-08 08:29:48,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 8 places, 4 transitions, 14 flow, removed 0 selfloop flow, removed 4 redundant places. [2025-02-08 08:29:48,373 INFO L231 Difference]: Finished difference. Result has 8 places, 0 transitions, 0 flow [2025-02-08 08:29:48,373 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=70, PETRI_DIFFERENCE_MINUEND_FLOW=8, PETRI_DIFFERENCE_MINUEND_PLACES=6, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=4, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=4, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=8, PETRI_TRANSITIONS=0} [2025-02-08 08:29:48,374 INFO L279 CegarLoopForPetriNet]: 69 programPoint places, -61 predicate places. [2025-02-08 08:29:48,374 INFO L471 AbstractCegarLoop]: Abstraction has has 8 places, 0 transitions, 0 flow [2025-02-08 08:29:48,374 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 37 remaining) [2025-02-08 08:29:48,376 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (20 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (17 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (16 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 37 remaining) [2025-02-08 08:29:48,377 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 37 remaining) [2025-02-08 08:29:48,378 INFO L782 garLoopResultBuilder]: Registering result SAFE for location fErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 37 remaining) [2025-02-08 08:29:48,392 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2025-02-08 08:29:48,579 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-02-08 08:29:48,579 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:29:48,584 INFO L241 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-02-08 08:29:48,586 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2025-02-08 08:29:48,592 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.02 08:29:48 BasicIcfg [2025-02-08 08:29:48,592 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-02-08 08:29:48,593 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-02-08 08:29:48,593 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-02-08 08:29:48,593 INFO L274 PluginConnector]: Witness Printer initialized [2025-02-08 08:29:48,594 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:29:42" (3/4) ... [2025-02-08 08:29:48,595 INFO L146 WitnessPrinter]: Generating witness for correct program [2025-02-08 08:29:48,597 INFO L385 IcfgBacktranslator]: Ignoring RootEdge to procedure f [2025-02-08 08:29:48,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 74 nodes and edges [2025-02-08 08:29:48,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 37 nodes and edges [2025-02-08 08:29:48,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2025-02-08 08:29:48,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2025-02-08 08:29:48,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2025-02-08 08:29:48,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:29:48,604 INFO L919 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2025-02-08 08:29:48,666 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2025-02-08 08:29:48,666 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2025-02-08 08:29:48,666 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-02-08 08:29:48,667 INFO L158 Benchmark]: Toolchain (without parser) took 8428.62ms. Allocated memory was 83.9MB in the beginning and 520.1MB in the end (delta: 436.2MB). Free memory was 57.8MB in the beginning and 303.5MB in the end (delta: -245.7MB). Peak memory consumption was 191.5MB. Max. memory is 16.1GB. [2025-02-08 08:29:48,668 INFO L158 Benchmark]: CDTParser took 1.03ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 62.7MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:29:48,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 545.13ms. Allocated memory is still 83.9MB. Free memory was 57.8MB in the beginning and 54.9MB in the end (delta: 3.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. [2025-02-08 08:29:48,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.50ms. Allocated memory is still 83.9MB. Free memory was 54.9MB in the beginning and 51.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. [2025-02-08 08:29:48,670 INFO L158 Benchmark]: Boogie Preprocessor took 44.52ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 48.1MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:29:48,670 INFO L158 Benchmark]: IcfgBuilder took 1939.68ms. Allocated memory was 83.9MB in the beginning and 251.7MB in the end (delta: 167.8MB). Free memory was 48.1MB in the beginning and 140.5MB in the end (delta: -92.4MB). Peak memory consumption was 146.6MB. Max. memory is 16.1GB. [2025-02-08 08:29:48,671 INFO L158 Benchmark]: TraceAbstraction took 5762.40ms. Allocated memory was 251.7MB in the beginning and 520.1MB in the end (delta: 268.4MB). Free memory was 140.5MB in the beginning and 307.7MB in the end (delta: -167.2MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. [2025-02-08 08:29:48,671 INFO L158 Benchmark]: Witness Printer took 72.97ms. Allocated memory is still 520.1MB. Free memory was 307.7MB in the beginning and 303.5MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2025-02-08 08:29:48,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.03ms. Allocated memory is still 83.9MB. Free memory was 62.8MB in the beginning and 62.7MB in the end (delta: 34.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 545.13ms. Allocated memory is still 83.9MB. Free memory was 57.8MB in the beginning and 54.9MB in the end (delta: 3.0MB). Peak memory consumption was 39.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.50ms. Allocated memory is still 83.9MB. Free memory was 54.9MB in the beginning and 51.5MB in the end (delta: 3.4MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 44.52ms. Allocated memory is still 83.9MB. Free memory was 51.5MB in the beginning and 48.1MB in the end (delta: 3.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * IcfgBuilder took 1939.68ms. Allocated memory was 83.9MB in the beginning and 251.7MB in the end (delta: 167.8MB). Free memory was 48.1MB in the beginning and 140.5MB in the end (delta: -92.4MB). Peak memory consumption was 146.6MB. Max. memory is 16.1GB. * TraceAbstraction took 5762.40ms. Allocated memory was 251.7MB in the beginning and 520.1MB in the end (delta: 268.4MB). Free memory was 140.5MB in the beginning and 307.7MB in the end (delta: -167.2MB). Peak memory consumption was 98.2MB. Max. memory is 16.1GB. * Witness Printer took 72.97ms. Allocated memory is still 520.1MB. Free memory was 307.7MB in the beginning and 303.5MB in the end (delta: 4.2MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: 1042]: all allocated memory was freed For all program executions holds that all allocated memory was freed at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - PositiveResult [Line: -1]: pointer dereference always succeeds For all program executions holds that pointer dereference always succeeds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 88 locations, 37 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 5.6s, OverallIterations: 7, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 453 SdHoareTripleChecker+Valid, 1.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 232 mSDsluCounter, 63 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 21 mSDsCounter, 23 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 838 IncrementalHoareTripleChecker+Invalid, 861 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 23 mSolverCounterUnsat, 42 mSDtfsCounter, 838 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=174occurred in iteration=5, InterpolantAutomatonStates: 26, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 121 SizeOfPredicates, 13 NumberOfNonLiveVariables, 2052 ConjunctsInSsa, 36 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 29 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2025-02-08 08:29:48,692 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE