./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/libvsync/semaphore.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/libvsync/semaphore.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 c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 --- Real Ultimate output --- This is Ultimate 0.3.0-?-48c9605-m [2025-02-08 08:46:17,683 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-08 08:46:17,739 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-02-08 08:46:17,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-08 08:46:17,745 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-08 08:46:17,764 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-08 08:46:17,765 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-08 08:46:17,765 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-08 08:46:17,765 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-02-08 08:46:17,765 INFO L153 SettingsManager]: * Use memory slicer=true [2025-02-08 08:46:17,766 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-08 08:46:17,766 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-08 08:46:17,766 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-08 08:46:17,766 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-08 08:46:17,767 INFO L153 SettingsManager]: * Use SBE=true [2025-02-08 08:46:17,767 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-08 08:46:17,767 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-08 08:46:17,767 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-08 08:46:17,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-08 08:46:17,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-08 08:46:17,767 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-08 08:46:17,768 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-08 08:46:17,768 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:46:17,769 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-08 08:46:17,769 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-08 08:46:17,770 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 -> c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 [2025-02-08 08:46:18,007 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-08 08:46:18,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-08 08:46:18,017 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-08 08:46:18,019 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-08 08:46:18,019 INFO L274 PluginConnector]: CDTParser initialized [2025-02-08 08:46:18,020 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/semaphore.i [2025-02-08 08:46:19,176 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7f9ead763/376a6ad70a664274bbadd9bf6e705338/FLAG92c18e340 [2025-02-08 08:46:19,613 INFO L384 CDTParser]: Found 1 translation units. [2025-02-08 08:46:19,614 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/libvsync/semaphore.i [2025-02-08 08:46:19,650 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7f9ead763/376a6ad70a664274bbadd9bf6e705338/FLAG92c18e340 [2025-02-08 08:46:19,754 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/7f9ead763/376a6ad70a664274bbadd9bf6e705338 [2025-02-08 08:46:19,755 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-08 08:46:19,756 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-08 08:46:19,757 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-08 08:46:19,757 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-08 08:46:19,759 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-08 08:46:19,760 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:46:19" (1/1) ... [2025-02-08 08:46:19,760 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40c7754e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:19, skipping insertion in model container [2025-02-08 08:46:19,760 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.02 08:46:19" (1/1) ... [2025-02-08 08:46:19,822 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-08 08:46:20,839 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:46:20,842 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:46:20,843 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:46:20,848 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:46:20,848 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-02-08 08:46:21,150 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:46:21,160 INFO L200 MainTranslator]: Completed pre-run [2025-02-08 08:46:21,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-02-08 08:46:21,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-02-08 08:46:21,232 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-02-08 08:46:21,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-02-08 08:46:21,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-02-08 08:46:21,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-02-08 08:46:21,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-02-08 08:46:21,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-02-08 08:46:21,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-02-08 08:46:21,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-02-08 08:46:21,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-02-08 08:46:21,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-02-08 08:46:21,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-02-08 08:46:21,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-02-08 08:46:21,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-02-08 08:46:21,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-02-08 08:46:21,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-02-08 08:46:21,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-02-08 08:46:21,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-02-08 08:46:21,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-02-08 08:46:21,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-02-08 08:46:21,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-02-08 08:46:21,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-02-08 08:46:21,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-02-08 08:46:21,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-02-08 08:46:21,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-02-08 08:46:21,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-02-08 08:46:21,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-02-08 08:46:21,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-02-08 08:46:21,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-02-08 08:46:21,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-02-08 08:46:21,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-02-08 08:46:21,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-02-08 08:46:21,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-02-08 08:46:21,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-02-08 08:46:21,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-02-08 08:46:21,240 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-02-08 08:46:21,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-02-08 08:46:21,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-02-08 08:46:21,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-02-08 08:46:21,241 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-02-08 08:46:21,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-02-08 08:46:21,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-02-08 08:46:21,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-02-08 08:46:21,242 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-02-08 08:46:21,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-02-08 08:46:21,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-02-08 08:46:21,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-02-08 08:46:21,243 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-02-08 08:46:21,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-02-08 08:46:21,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-02-08 08:46:21,244 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-02-08 08:46:21,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-02-08 08:46:21,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-02-08 08:46:21,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-02-08 08:46:21,245 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-02-08 08:46:21,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-02-08 08:46:21,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-02-08 08:46:21,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-02-08 08:46:21,246 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-02-08 08:46:21,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-02-08 08:46:21,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-02-08 08:46:21,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-02-08 08:46:21,247 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-02-08 08:46:21,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-02-08 08:46:21,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-02-08 08:46:21,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-02-08 08:46:21,248 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-02-08 08:46:21,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-02-08 08:46:21,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-02-08 08:46:21,249 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-02-08 08:46:21,250 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-02-08 08:46:21,252 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-02-08 08:46:21,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-02-08 08:46:21,253 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-02-08 08:46:21,256 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-02-08 08:46:21,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-02-08 08:46:21,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-02-08 08:46:21,257 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-02-08 08:46:21,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-02-08 08:46:21,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-02-08 08:46:21,264 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-02-08 08:46:21,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-02-08 08:46:21,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-02-08 08:46:21,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-02-08 08:46:21,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-02-08 08:46:21,265 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-02-08 08:46:21,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-02-08 08:46:21,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-02-08 08:46:21,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-02-08 08:46:21,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-02-08 08:46:21,266 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-02-08 08:46:21,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-02-08 08:46:21,267 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-02-08 08:46:21,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-02-08 08:46:21,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-02-08 08:46:21,268 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-02-08 08:46:21,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-02-08 08:46:21,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-02-08 08:46:21,272 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-02-08 08:46:21,345 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-08 08:46:21,578 INFO L204 MainTranslator]: Completed translation [2025-02-08 08:46:21,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21 WrapperNode [2025-02-08 08:46:21,579 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-08 08:46:21,580 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-08 08:46:21,580 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-08 08:46:21,580 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-08 08:46:21,583 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,632 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,668 INFO L138 Inliner]: procedures = 921, calls = 921, calls flagged for inlining = 820, calls inlined = 50, statements flattened = 466 [2025-02-08 08:46:21,668 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-08 08:46:21,669 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-08 08:46:21,669 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-08 08:46:21,669 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-08 08:46:21,682 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,682 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,685 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,717 INFO L175 MemorySlicer]: Split 19 memory accesses to 3 slices as follows [2, 14, 3]. 74 percent of accesses are in the largest equivalence class. The 3 initializations are split as follows [2, 1, 0]. The 7 writes are split as follows [0, 5, 2]. [2025-02-08 08:46:21,717 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,721 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,735 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,736 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,741 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,742 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,745 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-08 08:46:21,746 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-08 08:46:21,747 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-08 08:46:21,747 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-08 08:46:21,748 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (1/1) ... [2025-02-08 08:46:21,751 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-08 08:46:21,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-08 08:46:21,779 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 08:46:21,791 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 08:46:21,807 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-02-08 08:46:21,808 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-08 08:46:21,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-02-08 08:46:21,808 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-02-08 08:46:21,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-02-08 08:46:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-02-08 08:46:21,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-02-08 08:46:21,810 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 08:46:21,936 INFO L257 CfgBuilder]: Building ICFG [2025-02-08 08:46:21,938 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-08 08:46:22,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L565: verification_spin_end_~v#1 := verification_spin_end_#in~v#1; [2025-02-08 08:46:22,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-1: verification_spin_end_~v#1 := verification_spin_end_#in~v#1; [2025-02-08 08:46:22,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-2: assume { :end_inline_vatomic32_cmpxchg } true;vatomic32_await_ge_sub_~old~20#1 := vatomic32_await_ge_sub_#t~ret681#1; [2025-02-08 08:46:22,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-3: havoc vatomic32_cmpxchg_#in~a#1.base, vatomic32_cmpxchg_#in~a#1.offset, vatomic32_cmpxchg_#in~e#1, vatomic32_cmpxchg_#in~v#1; [2025-02-08 08:46:22,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041: havoc vatomic32_await_ge_sub_#t~ret681#1; [2025-02-08 08:46:22,189 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-1: havoc vatomic32_await_ge_sub_#t~ret681#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-4: havoc vatomic32_cmpxchg_#t~ret448#1, vatomic32_cmpxchg_#t~mem449#1, vatomic32_cmpxchg_#t~ret450#1, vatomic32_cmpxchg_~a#1.base, vatomic32_cmpxchg_~a#1.offset, vatomic32_cmpxchg_~e#1, vatomic32_cmpxchg_~v#1, vatomic32_cmpxchg_~exp~2#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-5: vatomic32_await_ge_sub_#t~ret681#1 := vatomic32_cmpxchg_#res#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-1: havoc verification_spin_end_#in~v#1;assume { :end_inline_verification_spin_end } true; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-2: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-5: havoc vatomic32_await_neq_#t~ite631#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-6: havoc vatomic32_await_neq_#t~ite631#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-3: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-4: assume { :begin_inline_verification_spin_end } true;verification_spin_end_#in~v#1 := 0; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-9: havoc vatomic32_await_neq_#t~ret630#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-10: assume { :end_inline_verification_spin_end } true;vatomic32_await_neq_#t~ite631#1 := 0; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-7: assume 0 != vatomic32_await_neq_#t~ite631#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-7: assume !(0 != vatomic32_await_neq_#t~ite631#1); [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-8: havoc vatomic32_await_neq_#t~ret630#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-13: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-14: assume vatomic32_await_neq_~cur~5#1 % 4294967296 == vatomic32_await_neq_~c#1 % 4294967296; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-14: assume !(vatomic32_await_neq_~cur~5#1 % 4294967296 == vatomic32_await_neq_~c#1 % 4294967296); [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-11: havoc verification_spin_end_#in~v#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-12: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-17: assume { :end_inline_vatomic32_read } true;vatomic32_await_neq_~cur~5#1 := vatomic32_await_neq_#t~ret630#1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-18: havoc vatomic32_read_#in~a#1.base, vatomic32_read_#in~a#1.offset; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-15: vatomic32_await_neq_#t~ite631#1 := 1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-16: assume { :begin_inline_verification_spin_end } true;verification_spin_end_#in~v#1 := 1; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568: assume true; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568: assume !true; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-1: assume false; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-1: assume !false; [2025-02-08 08:46:22,190 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-19: havoc vatomic32_read_#t~mem432#1, vatomic32_read_~a#1.base, vatomic32_read_~a#1.offset, vatomic32_read_~tmp~2#1; [2025-02-08 08:46:22,192 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-2: assume true; [2025-02-08 08:46:22,192 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-2: assume !true; [2025-02-08 08:46:22,192 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-20: vatomic32_await_neq_#t~ret630#1 := vatomic32_read_#res#1; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-3: assume false; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-3: assume !false; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-4: assume true; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-4: assume !true; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-5: assume false; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-5: assume !false; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-6: assume true; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-6: assume !true; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-7: assume false; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-7: assume !false; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-8: assume true; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-8: assume !true; [2025-02-08 08:46:22,193 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-9: assume false; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-9: assume !false; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-10: assume true; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-10: assume !true; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-11: assume false; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-11: assume !false; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813: assume true; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813: assume !true; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813-1: assume false; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813-1: assume !false; [2025-02-08 08:46:22,194 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-02-08 08:46:22,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5036-1: assume vatomic32_await_ge_sub_~old~20#1 % 4294967296 != vatomic32_await_ge_sub_~cur~15#1 % 4294967296; [2025-02-08 08:46:22,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5036-1: assume !(vatomic32_await_ge_sub_~old~20#1 % 4294967296 != vatomic32_await_ge_sub_~cur~15#1 % 4294967296); [2025-02-08 08:46:22,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039: havoc vatomic32_await_ge_sub_#t~ret680#1; [2025-02-08 08:46:22,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-1: assume { :end_inline_vatomic32_await_neq } true;vatomic32_await_ge_sub_~cur~15#1 := vatomic32_await_ge_sub_#t~ret680#1; [2025-02-08 08:46:22,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-4: vatomic32_await_ge_sub_#t~ret680#1 := vatomic32_await_neq_#res#1; [2025-02-08 08:46:22,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-2: havoc vatomic32_await_neq_#in~a#1.base, vatomic32_await_neq_#in~a#1.offset, vatomic32_await_neq_#in~c#1; [2025-02-08 08:46:22,195 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-3: havoc vatomic32_await_neq_#t~ret630#1, vatomic32_await_neq_#t~ite631#1, vatomic32_await_neq_~a#1.base, vatomic32_await_neq_~a#1.offset, vatomic32_await_neq_~c#1, vatomic32_await_neq_~cur~5#1; [2025-02-08 08:46:22,349 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6007: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-02-08 08:46:22,349 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L6007-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-02-08 08:46:22,514 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L565: verification_spin_end_~v#1 := verification_spin_end_#in~v#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L565-1: verification_spin_end_~v#1 := verification_spin_end_#in~v#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-2: assume { :end_inline_vatomic32_cmpxchg } true;vatomic32_await_ge_sub_~old~20#1 := vatomic32_await_ge_sub_#t~ret681#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-3: havoc vatomic32_cmpxchg_#in~a#1.base, vatomic32_cmpxchg_#in~a#1.offset, vatomic32_cmpxchg_#in~e#1, vatomic32_cmpxchg_#in~v#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041: havoc vatomic32_await_ge_sub_#t~ret681#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-1: havoc vatomic32_await_ge_sub_#t~ret681#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-4: havoc vatomic32_cmpxchg_#t~ret448#1, vatomic32_cmpxchg_#t~mem449#1, vatomic32_cmpxchg_#t~ret450#1, vatomic32_cmpxchg_~a#1.base, vatomic32_cmpxchg_~a#1.offset, vatomic32_cmpxchg_~e#1, vatomic32_cmpxchg_~v#1, vatomic32_cmpxchg_~exp~2#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5041-5: vatomic32_await_ge_sub_#t~ret681#1 := vatomic32_cmpxchg_#res#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-1: havoc verification_spin_end_#in~v#1;assume { :end_inline_verification_spin_end } true; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-2: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,515 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-5: havoc vatomic32_await_neq_#t~ite631#1; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-6: havoc vatomic32_await_neq_#t~ite631#1; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-3: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-4: assume { :begin_inline_verification_spin_end } true;verification_spin_end_#in~v#1 := 0; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-9: havoc vatomic32_await_neq_#t~ret630#1; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-10: assume { :end_inline_verification_spin_end } true;vatomic32_await_neq_#t~ite631#1 := 0; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-7: assume 0 != vatomic32_await_neq_#t~ite631#1; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-7: assume !(0 != vatomic32_await_neq_#t~ite631#1); [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-8: havoc vatomic32_await_neq_#t~ret630#1; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-13: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-14: assume vatomic32_await_neq_~cur~5#1 % 4294967296 == vatomic32_await_neq_~c#1 % 4294967296; [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-14: assume !(vatomic32_await_neq_~cur~5#1 % 4294967296 == vatomic32_await_neq_~c#1 % 4294967296); [2025-02-08 08:46:22,516 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-11: havoc verification_spin_end_#in~v#1; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-12: havoc verification_spin_end_~v#1; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-17: assume { :end_inline_vatomic32_read } true;vatomic32_await_neq_~cur~5#1 := vatomic32_await_neq_#t~ret630#1; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-18: havoc vatomic32_read_#in~a#1.base, vatomic32_read_#in~a#1.offset; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-15: vatomic32_await_neq_#t~ite631#1 := 1; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-16: assume { :begin_inline_verification_spin_end } true;verification_spin_end_#in~v#1 := 1; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568: assume true; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568: assume !true; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-1: assume false; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-1: assume !false; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-19: havoc vatomic32_read_#t~mem432#1, vatomic32_read_~a#1.base, vatomic32_read_~a#1.offset, vatomic32_read_~tmp~2#1; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-2: assume true; [2025-02-08 08:46:22,517 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-2: assume !true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4812-20: vatomic32_await_neq_#t~ret630#1 := vatomic32_read_#res#1; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-3: assume false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-3: assume !false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-4: assume true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-4: assume !true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-5: assume false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-5: assume !false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-6: assume true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-6: assume !true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-7: assume false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-7: assume !false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-8: assume true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-8: assume !true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-9: assume false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-9: assume !false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-10: assume true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-10: assume !true; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-11: assume false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L568-11: assume !false; [2025-02-08 08:46:22,518 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813: assume true; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813: assume !true; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813-1: assume false; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L4813-1: assume !false; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5036-1: assume vatomic32_await_ge_sub_~old~20#1 % 4294967296 != vatomic32_await_ge_sub_~cur~15#1 % 4294967296; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5036-1: assume !(vatomic32_await_ge_sub_~old~20#1 % 4294967296 != vatomic32_await_ge_sub_~cur~15#1 % 4294967296); [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039: havoc vatomic32_await_ge_sub_#t~ret680#1; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-1: assume { :end_inline_vatomic32_await_neq } true;vatomic32_await_ge_sub_~cur~15#1 := vatomic32_await_ge_sub_#t~ret680#1; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-4: vatomic32_await_ge_sub_#t~ret680#1 := vatomic32_await_neq_#res#1; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-2: havoc vatomic32_await_neq_#in~a#1.base, vatomic32_await_neq_#in~a#1.offset, vatomic32_await_neq_#in~c#1; [2025-02-08 08:46:22,519 INFO L1324 $ProcedureCfgBuilder]: dead code at ProgramPoint L5039-3: havoc vatomic32_await_neq_#t~ret630#1, vatomic32_await_neq_#t~ite631#1, vatomic32_await_neq_~a#1.base, vatomic32_await_neq_~a#1.offset, vatomic32_await_neq_~c#1, vatomic32_await_neq_~cur~5#1; [2025-02-08 08:46:22,521 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-08 08:46:22,521 INFO L308 CfgBuilder]: Performing block encoding [2025-02-08 08:46:22,818 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-08 08:46:22,822 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-08 08:46:22,823 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:46:22 BoogieIcfgContainer [2025-02-08 08:46:22,823 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-08 08:46:22,825 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-08 08:46:22,825 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-08 08:46:22,831 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-08 08:46:22,832 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.02 08:46:19" (1/3) ... [2025-02-08 08:46:22,832 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5648a9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:46:22, skipping insertion in model container [2025-02-08 08:46:22,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.02 08:46:21" (2/3) ... [2025-02-08 08:46:22,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5648a9d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.02 08:46:22, skipping insertion in model container [2025-02-08 08:46:22,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.02 08:46:22" (3/3) ... [2025-02-08 08:46:22,836 INFO L128 eAbstractionObserver]: Analyzing ICFG semaphore.i [2025-02-08 08:46:22,857 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-08 08:46:22,858 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG semaphore.i that has 3 procedures, 168 locations, 1 initial locations, 53 loop locations, and 36 error locations. [2025-02-08 08:46:22,861 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-08 08:46:23,050 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-08 08:46:23,089 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 174 places, 237 transitions, 488 flow [2025-02-08 08:46:23,168 INFO L124 PetriNetUnfolderBase]: 140/484 cut-off events. [2025-02-08 08:46:23,170 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-08 08:46:23,180 INFO L83 FinitePrefix]: Finished finitePrefix Result has 497 conditions, 484 events. 140/484 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 2565 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 267. Up to 12 conditions per place. [2025-02-08 08:46:23,180 INFO L82 GeneralOperation]: Start removeDead. Operand has 174 places, 237 transitions, 488 flow [2025-02-08 08:46:23,190 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 174 places, 237 transitions, 488 flow [2025-02-08 08:46:23,195 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:46:23,203 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;@15c89356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:46:23,203 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-02-08 08:46:23,207 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:46:23,207 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2025-02-08 08:46:23,208 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:46:23,208 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:46:23,208 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-02-08 08:46:23,209 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2025-02-08 08:46:23,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:46:23,213 INFO L85 PathProgramCache]: Analyzing trace with hash 41550, now seen corresponding path program 1 times [2025-02-08 08:46:23,218 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:46:23,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539277474] [2025-02-08 08:46:23,219 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:46:23,219 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:46:23,275 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:46:23,285 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:46:23,286 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:46:23,286 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:46:23,449 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 08:46:23,449 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:46:23,449 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539277474] [2025-02-08 08:46:23,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539277474] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:46:23,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:46:23,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:46:23,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390438572] [2025-02-08 08:46:23,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:46:23,457 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:46:23,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:46:23,489 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:46:23,494 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:46:23,519 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 237 [2025-02-08 08:46:23,522 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 237 transitions, 488 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 08:46:23,522 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:46:23,522 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 237 [2025-02-08 08:46:23,524 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:46:24,815 INFO L124 PetriNetUnfolderBase]: 6171/11238 cut-off events. [2025-02-08 08:46:24,815 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-02-08 08:46:24,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21123 conditions, 11238 events. 6171/11238 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 88646 event pairs, 6171 based on Foata normal form. 7217/14927 useless extension candidates. Maximal degree in co-relation 20287. Up to 9839 conditions per place. [2025-02-08 08:46:24,945 INFO L140 encePairwiseOnDemand]: 188/237 looper letters, 52 selfloop transitions, 2 changer transitions 0/109 dead transitions. [2025-02-08 08:46:24,945 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 109 transitions, 334 flow [2025-02-08 08:46:24,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:46:24,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:46:24,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2025-02-08 08:46:24,956 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5007032348804501 [2025-02-08 08:46:24,956 INFO L175 Difference]: Start difference. First operand has 174 places, 237 transitions, 488 flow. Second operand 3 states and 356 transitions. [2025-02-08 08:46:24,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 109 transitions, 334 flow [2025-02-08 08:46:24,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 109 transitions, 334 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-08 08:46:24,961 INFO L231 Difference]: Finished difference. Result has 116 places, 109 transitions, 230 flow [2025-02-08 08:46:24,963 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=226, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=116, PETRI_TRANSITIONS=109} [2025-02-08 08:46:24,965 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -58 predicate places. [2025-02-08 08:46:24,965 INFO L471 AbstractCegarLoop]: Abstraction has has 116 places, 109 transitions, 230 flow [2025-02-08 08:46:24,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 08:46:24,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:46:24,966 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-02-08 08:46:24,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-08 08:46:24,966 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2025-02-08 08:46:24,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:46:24,966 INFO L85 PathProgramCache]: Analyzing trace with hash 41551, now seen corresponding path program 1 times [2025-02-08 08:46:24,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:46:24,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415400825] [2025-02-08 08:46:24,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:46:24,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:46:24,973 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:46:24,977 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:46:24,977 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:46:24,977 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:46:25,058 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 08:46:25,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:46:25,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415400825] [2025-02-08 08:46:25,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415400825] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:46:25,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:46:25,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:46:25,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686384387] [2025-02-08 08:46:25,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:46:25,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:46:25,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:46:25,060 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:46:25,060 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:46:25,074 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 237 [2025-02-08 08:46:25,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 109 transitions, 230 flow. Second operand has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 08:46:25,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:46:25,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 237 [2025-02-08 08:46:25,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:46:26,079 INFO L124 PetriNetUnfolderBase]: 6171/11237 cut-off events. [2025-02-08 08:46:26,079 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2025-02-08 08:46:26,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21124 conditions, 11237 events. 6171/11237 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 504. Compared 88820 event pairs, 6171 based on Foata normal form. 0/7710 useless extension candidates. Maximal degree in co-relation 21111. Up to 9839 conditions per place. [2025-02-08 08:46:26,123 INFO L140 encePairwiseOnDemand]: 234/237 looper letters, 51 selfloop transitions, 2 changer transitions 0/108 dead transitions. [2025-02-08 08:46:26,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 108 transitions, 334 flow [2025-02-08 08:46:26,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:46:26,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:46:26,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 309 transitions. [2025-02-08 08:46:26,125 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4345991561181435 [2025-02-08 08:46:26,125 INFO L175 Difference]: Start difference. First operand has 116 places, 109 transitions, 230 flow. Second operand 3 states and 309 transitions. [2025-02-08 08:46:26,125 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 108 transitions, 334 flow [2025-02-08 08:46:26,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 115 places, 108 transitions, 330 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:46:26,127 INFO L231 Difference]: Finished difference. Result has 115 places, 108 transitions, 228 flow [2025-02-08 08:46:26,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=224, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=108, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=228, PETRI_PLACES=115, PETRI_TRANSITIONS=108} [2025-02-08 08:46:26,128 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -59 predicate places. [2025-02-08 08:46:26,128 INFO L471 AbstractCegarLoop]: Abstraction has has 115 places, 108 transitions, 228 flow [2025-02-08 08:46:26,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 85.66666666666667) internal successors, (257), 3 states have internal predecessors, (257), 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 08:46:26,129 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:46:26,129 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:46:26,129 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-08 08:46:26,129 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2025-02-08 08:46:26,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:46:26,130 INFO L85 PathProgramCache]: Analyzing trace with hash 1757064916, now seen corresponding path program 1 times [2025-02-08 08:46:26,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:46:26,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224109364] [2025-02-08 08:46:26,130 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:46:26,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:46:26,138 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:46:26,142 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:46:26,143 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:46:26,143 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:46:26,201 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 08:46:26,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:46:26,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224109364] [2025-02-08 08:46:26,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224109364] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:46:26,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:46:26,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:46:26,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818694255] [2025-02-08 08:46:26,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:46:26,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:46:26,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:46:26,202 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:46:26,202 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:46:26,227 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 237 [2025-02-08 08:46:26,228 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 108 transitions, 228 flow. Second operand has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 08:46:26,228 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:46:26,228 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 237 [2025-02-08 08:46:26,228 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:46:27,190 INFO L124 PetriNetUnfolderBase]: 7480/13636 cut-off events. [2025-02-08 08:46:27,190 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2025-02-08 08:46:27,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 25573 conditions, 13636 events. 7480/13636 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 582. Compared 109473 event pairs, 6188 based on Foata normal form. 0/9586 useless extension candidates. Maximal degree in co-relation 25560. Up to 9876 conditions per place. [2025-02-08 08:46:27,248 INFO L140 encePairwiseOnDemand]: 232/237 looper letters, 88 selfloop transitions, 2 changer transitions 0/139 dead transitions. [2025-02-08 08:46:27,248 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 139 transitions, 470 flow [2025-02-08 08:46:27,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-08 08:46:27,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-08 08:46:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2025-02-08 08:46:27,250 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4641350210970464 [2025-02-08 08:46:27,250 INFO L175 Difference]: Start difference. First operand has 115 places, 108 transitions, 228 flow. Second operand 3 states and 330 transitions. [2025-02-08 08:46:27,250 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 139 transitions, 470 flow [2025-02-08 08:46:27,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 139 transitions, 466 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:46:27,252 INFO L231 Difference]: Finished difference. Result has 112 places, 105 transitions, 222 flow [2025-02-08 08:46:27,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=218, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=222, PETRI_PLACES=112, PETRI_TRANSITIONS=105} [2025-02-08 08:46:27,253 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -62 predicate places. [2025-02-08 08:46:27,253 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 105 transitions, 222 flow [2025-02-08 08:46:27,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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 08:46:27,253 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:46:27,253 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:46:27,253 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-08 08:46:27,253 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2025-02-08 08:46:27,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:46:27,254 INFO L85 PathProgramCache]: Analyzing trace with hash 1757064917, now seen corresponding path program 1 times [2025-02-08 08:46:27,254 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:46:27,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1665076603] [2025-02-08 08:46:27,254 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:46:27,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:46:27,262 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-02-08 08:46:27,274 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-02-08 08:46:27,275 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:46:27,275 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:46:27,556 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 08:46:27,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:46:27,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1665076603] [2025-02-08 08:46:27,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1665076603] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:46:27,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:46:27,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-02-08 08:46:27,557 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054457360] [2025-02-08 08:46:27,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:46:27,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-02-08 08:46:27,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:46:27,558 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-02-08 08:46:27,558 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-02-08 08:46:27,588 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 84 out of 237 [2025-02-08 08:46:27,589 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 105 transitions, 222 flow. Second operand has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 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 08:46:27,589 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:46:27,590 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 84 of 237 [2025-02-08 08:46:27,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-08 08:46:28,608 INFO L124 PetriNetUnfolderBase]: 6018/11786 cut-off events. [2025-02-08 08:46:28,608 INFO L125 PetriNetUnfolderBase]: For 361/361 co-relation queries the response was YES. [2025-02-08 08:46:28,627 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21669 conditions, 11786 events. 6018/11786 cut-off events. For 361/361 co-relation queries the response was YES. Maximal size of possible extension queue 498. Compared 97979 event pairs, 2159 based on Foata normal form. 19/8454 useless extension candidates. Maximal degree in co-relation 21639. Up to 7500 conditions per place. [2025-02-08 08:46:28,677 INFO L140 encePairwiseOnDemand]: 230/237 looper letters, 100 selfloop transitions, 5 changer transitions 0/156 dead transitions. [2025-02-08 08:46:28,677 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 156 transitions, 534 flow [2025-02-08 08:46:28,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-02-08 08:46:28,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-02-08 08:46:28,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 443 transitions. [2025-02-08 08:46:28,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.46729957805907174 [2025-02-08 08:46:28,679 INFO L175 Difference]: Start difference. First operand has 112 places, 105 transitions, 222 flow. Second operand 4 states and 443 transitions. [2025-02-08 08:46:28,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 156 transitions, 534 flow [2025-02-08 08:46:28,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 156 transitions, 530 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-02-08 08:46:28,695 INFO L231 Difference]: Finished difference. Result has 114 places, 105 transitions, 240 flow [2025-02-08 08:46:28,696 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=237, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=240, PETRI_PLACES=114, PETRI_TRANSITIONS=105} [2025-02-08 08:46:28,697 INFO L279 CegarLoopForPetriNet]: 174 programPoint places, -60 predicate places. [2025-02-08 08:46:28,697 INFO L471 AbstractCegarLoop]: Abstraction has has 114 places, 105 transitions, 240 flow [2025-02-08 08:46:28,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 85.5) internal successors, (342), 4 states have internal predecessors, (342), 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 08:46:28,698 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:46:28,698 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-02-08 08:46:28,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-08 08:46:28,698 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 60 more)] === [2025-02-08 08:46:28,699 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:46:28,699 INFO L85 PathProgramCache]: Analyzing trace with hash -1602181615, now seen corresponding path program 1 times [2025-02-08 08:46:28,699 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:46:28,699 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338489268] [2025-02-08 08:46:28,699 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:46:28,699 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:46:28,712 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:46:28,729 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:46:28,729 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:46:28,729 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:46:28,729 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-08 08:46:28,735 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 17 statements into 1 equivalence classes. [2025-02-08 08:46:28,747 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 17 of 17 statements. [2025-02-08 08:46:28,747 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:46:28,747 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-08 08:46:28,769 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-08 08:46:28,771 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-08 08:46:28,772 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (62 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 63 remaining) [2025-02-08 08:46:28,774 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONMEMORY_LEAK (53 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 63 remaining) [2025-02-08 08:46:28,775 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (40 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (39 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (38 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (37 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 63 remaining) [2025-02-08 08:46:28,776 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 63 remaining) [2025-02-08 08:46:28,777 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONMEMORY_LEAK (16 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 63 remaining) [2025-02-08 08:46:28,778 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 63 remaining) [2025-02-08 08:46:28,779 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 63 remaining) [2025-02-08 08:46:28,779 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-08 08:46:28,780 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2025-02-08 08:46:28,783 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-08 08:46:28,783 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-08 08:46:28,913 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-08 08:46:28,917 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 284 places, 385 transitions, 802 flow [2025-02-08 08:46:29,094 INFO L124 PetriNetUnfolderBase]: 399/1381 cut-off events. [2025-02-08 08:46:29,094 INFO L125 PetriNetUnfolderBase]: For 40/47 co-relation queries the response was YES. [2025-02-08 08:46:29,110 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 1381 events. 399/1381 cut-off events. For 40/47 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 9064 event pairs, 1 based on Foata normal form. 0/744 useless extension candidates. Maximal degree in co-relation 839. Up to 48 conditions per place. [2025-02-08 08:46:29,110 INFO L82 GeneralOperation]: Start removeDead. Operand has 284 places, 385 transitions, 802 flow [2025-02-08 08:46:29,128 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 284 places, 385 transitions, 802 flow [2025-02-08 08:46:29,131 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-08 08:46:29,132 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;@15c89356, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-08 08:46:29,132 INFO L334 AbstractCegarLoop]: Starting to check reachability of 88 error locations. [2025-02-08 08:46:29,133 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-08 08:46:29,133 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2025-02-08 08:46:29,133 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-08 08:46:29,133 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-08 08:46:29,134 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2025-02-08 08:46:29,134 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 85 more)] === [2025-02-08 08:46:29,134 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-08 08:46:29,134 INFO L85 PathProgramCache]: Analyzing trace with hash 53838, now seen corresponding path program 1 times [2025-02-08 08:46:29,134 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-08 08:46:29,134 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478310565] [2025-02-08 08:46:29,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-08 08:46:29,135 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-08 08:46:29,141 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 2 statements into 1 equivalence classes. [2025-02-08 08:46:29,143 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 2 of 2 statements. [2025-02-08 08:46:29,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-08 08:46:29,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-08 08:46:29,177 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 08:46:29,177 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-08 08:46:29,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478310565] [2025-02-08 08:46:29,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478310565] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-08 08:46:29,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-08 08:46:29,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-08 08:46:29,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002499716] [2025-02-08 08:46:29,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-08 08:46:29,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-08 08:46:29,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-08 08:46:29,178 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-08 08:46:29,178 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-08 08:46:29,189 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 129 out of 385 [2025-02-08 08:46:29,190 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 284 places, 385 transitions, 802 flow. Second operand has 3 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 08:46:29,190 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-08 08:46:29,190 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 129 of 385 [2025-02-08 08:46:29,190 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand