./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/libvsync/rwlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/libvsync/rwlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 fd8ac353802a2e1d548b78214c4e90430a3b2551f535af0ed9cab2c49366d321 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 18:25:45,207 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 18:25:45,300 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-10 18:25:45,309 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 18:25:45,310 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 18:25:45,339 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 18:25:45,339 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 18:25:45,340 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 18:25:45,341 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 18:25:45,341 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 18:25:45,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 18:25:45,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 18:25:45,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 18:25:45,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 18:25:45,343 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 18:25:45,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 18:25:45,344 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 18:25:45,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 18:25:45,345 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 18:25:45,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 18:25:45,346 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-10 18:25:45,346 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-10 18:25:45,346 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-10 18:25:45,347 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 18:25:45,347 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-10 18:25:45,348 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 18:25:45,348 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-10 18:25:45,348 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 18:25:45,349 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 18:25:45,349 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 18:25:45,349 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 18:25:45,350 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 18:25:45,350 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 18:25:45,350 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:25:45,351 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 18:25:45,351 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 18:25:45,351 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 18:25:45,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 18:25:45,352 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 18:25:45,352 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 18:25:45,352 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 18:25:45,353 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 18:25:45,353 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd8ac353802a2e1d548b78214c4e90430a3b2551f535af0ed9cab2c49366d321 [2024-11-10 18:25:45,644 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 18:25:45,676 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 18:25:45,679 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 18:25:45,680 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 18:25:45,681 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 18:25:45,682 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/rwlock.i [2024-11-10 18:25:47,355 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 18:25:47,822 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 18:25:47,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rwlock.i [2024-11-10 18:25:47,884 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a68509eb/2087508a009b48658e7f3ae49e10f975/FLAG3c2f6c28e [2024-11-10 18:25:47,901 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a68509eb/2087508a009b48658e7f3ae49e10f975 [2024-11-10 18:25:47,906 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 18:25:47,909 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 18:25:47,911 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 18:25:47,911 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 18:25:47,917 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 18:25:47,918 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:25:47" (1/1) ... [2024-11-10 18:25:47,919 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51f547cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:47, skipping insertion in model container [2024-11-10 18:25:47,919 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 06:25:47" (1/1) ... [2024-11-10 18:25:48,025 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 18:25:49,783 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:25:49,789 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:25:49,790 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:25:49,799 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:25:49,800 WARN L1072 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-10 18:25:50,452 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:25:50,471 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 18:25:50,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-10 18:25:50,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-10 18:25:50,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-10 18:25:50,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-10 18:25:50,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-10 18:25:50,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-10 18:25:50,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-10 18:25:50,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-10 18:25:50,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-10 18:25:50,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-10 18:25:50,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-10 18:25:50,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-10 18:25:50,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-10 18:25:50,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-10 18:25:50,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-10 18:25:50,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-10 18:25:50,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-10 18:25:50,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-10 18:25:50,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-10 18:25:50,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-10 18:25:50,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-10 18:25:50,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-10 18:25:50,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-10 18:25:50,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-10 18:25:50,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-10 18:25:50,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-10 18:25:50,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-10 18:25:50,589 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-10 18:25:50,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-10 18:25:50,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-10 18:25:50,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-10 18:25:50,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-10 18:25:50,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-10 18:25:50,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-10 18:25:50,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-10 18:25:50,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-10 18:25:50,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-10 18:25:50,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-10 18:25:50,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-10 18:25:50,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-10 18:25:50,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-10 18:25:50,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-10 18:25:50,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-10 18:25:50,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-10 18:25:50,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-10 18:25:50,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-10 18:25:50,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-10 18:25:50,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-10 18:25:50,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-10 18:25:50,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-10 18:25:50,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-10 18:25:50,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-10 18:25:50,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-10 18:25:50,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-10 18:25:50,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-10 18:25:50,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-10 18:25:50,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-10 18:25:50,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-10 18:25:50,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-10 18:25:50,609 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-10 18:25:50,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-10 18:25:50,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-10 18:25:50,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-10 18:25:50,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-10 18:25:50,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-10 18:25:50,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-10 18:25:50,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-10 18:25:50,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-10 18:25:50,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-10 18:25:50,617 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-10 18:25:50,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-10 18:25:50,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-10 18:25:50,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-10 18:25:50,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-10 18:25:50,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-10 18:25:50,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-10 18:25:50,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-10 18:25:50,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-10 18:25:50,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-10 18:25:50,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-10 18:25:50,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-10 18:25:50,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-10 18:25:50,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-10 18:25:50,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-10 18:25:50,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-10 18:25:50,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-10 18:25:50,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-10 18:25:50,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-10 18:25:50,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-10 18:25:50,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-10 18:25:50,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-10 18:25:50,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-10 18:25:50,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-10 18:25:50,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-10 18:25:50,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-10 18:25:50,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-10 18:25:50,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-10 18:25:50,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-10 18:25:50,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-10 18:25:50,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-10 18:25:50,729 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 18:25:51,086 INFO L204 MainTranslator]: Completed translation [2024-11-10 18:25:51,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51 WrapperNode [2024-11-10 18:25:51,087 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 18:25:51,089 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 18:25:51,089 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 18:25:51,089 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 18:25:51,097 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,204 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,283 INFO L138 Inliner]: procedures = 930, calls = 943, calls flagged for inlining = 835, calls inlined = 70, statements flattened = 647 [2024-11-10 18:25:51,284 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 18:25:51,285 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 18:25:51,285 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 18:25:51,289 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 18:25:51,301 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,301 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,311 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,342 INFO L175 MemorySlicer]: Split 27 memory accesses to 3 slices as follows [2, 22, 3]. 81 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [2, 3, 0]. The 8 writes are split as follows [0, 6, 2]. [2024-11-10 18:25:51,342 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,342 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,357 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,359 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,363 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,366 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 18:25:51,374 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 18:25:51,374 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 18:25:51,374 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 18:25:51,375 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (1/1) ... [2024-11-10 18:25:51,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 18:25:51,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 18:25:51,435 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-10 18:25:51,447 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-10 18:25:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2024-11-10 18:25:51,499 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2024-11-10 18:25:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-10 18:25:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-10 18:25:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-10 18:25:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 18:25:51,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 18:25:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2024-11-10 18:25:51,500 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-10 18:25:51,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-10 18:25:51,505 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-10 18:25:51,748 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 18:25:51,750 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 18:25:52,173 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2255: havoc vatomic32_await_eq_rlx_#t~ret168#1; [2024-11-10 18:25:52,174 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2024-11-10 18:25:52,343 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6076-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2024-11-10 18:25:52,344 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L6076: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2024-11-10 18:25:52,691 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2024-11-10 18:25:52,692 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L2570: havoc vatomic32_await_eq_set_rlx_#t~ret231#1; [2024-11-10 18:25:52,694 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-10 18:25:52,694 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 18:25:53,154 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 18:25:53,154 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 18:25:53,155 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:25:53 BoogieIcfgContainer [2024-11-10 18:25:53,156 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 18:25:53,158 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 18:25:53,158 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 18:25:53,163 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 18:25:53,163 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 06:25:47" (1/3) ... [2024-11-10 18:25:53,165 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f3c7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:25:53, skipping insertion in model container [2024-11-10 18:25:53,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 06:25:51" (2/3) ... [2024-11-10 18:25:53,166 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24f3c7ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 06:25:53, skipping insertion in model container [2024-11-10 18:25:53,166 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 06:25:53" (3/3) ... [2024-11-10 18:25:53,168 INFO L112 eAbstractionObserver]: Analyzing ICFG rwlock.i [2024-11-10 18:25:53,186 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 18:25:53,187 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 48 error locations. [2024-11-10 18:25:53,187 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-10 18:25:53,432 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-10 18:25:53,485 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 287 places, 431 transitions, 876 flow [2024-11-10 18:25:53,747 INFO L124 PetriNetUnfolderBase]: 266/783 cut-off events. [2024-11-10 18:25:53,747 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-10 18:25:53,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 796 conditions, 783 events. 266/783 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 4242 event pairs, 0 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 471. Up to 12 conditions per place. [2024-11-10 18:25:53,787 INFO L82 GeneralOperation]: Start removeDead. Operand has 287 places, 431 transitions, 876 flow [2024-11-10 18:25:53,820 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 287 places, 431 transitions, 876 flow [2024-11-10 18:25:53,831 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:25:53,839 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;@225dae74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:25:53,840 INFO L334 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2024-11-10 18:25:53,845 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:25:53,846 INFO L124 PetriNetUnfolderBase]: 7/20 cut-off events. [2024-11-10 18:25:53,846 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:25:53,846 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:25:53,847 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 18:25:53,847 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2024-11-10 18:25:53,853 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:25:53,854 INFO L85 PathProgramCache]: Analyzing trace with hash -853232279, now seen corresponding path program 1 times [2024-11-10 18:25:53,863 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:25:53,864 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023486201] [2024-11-10 18:25:53,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:25:53,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:25:53,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:25:54,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:25:54,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:25:54,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023486201] [2024-11-10 18:25:54,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1023486201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:25:54,079 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:25:54,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:25:54,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784663589] [2024-11-10 18:25:54,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:25:54,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:25:54,097 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:25:54,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:25:54,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:25:54,131 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 156 out of 431 [2024-11-10 18:25:54,137 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 431 transitions, 876 flow. Second operand has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 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) [2024-11-10 18:25:54,138 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:25:54,138 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 156 of 431 [2024-11-10 18:25:54,139 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:26:07,184 INFO L124 PetriNetUnfolderBase]: 48048/96934 cut-off events. [2024-11-10 18:26:07,184 INFO L125 PetriNetUnfolderBase]: For 167/167 co-relation queries the response was YES. [2024-11-10 18:26:07,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168236 conditions, 96934 events. 48048/96934 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 2870. Compared 1099861 event pairs, 41431 based on Foata normal form. 82610/160626 useless extension candidates. Maximal degree in co-relation 165747. Up to 71083 conditions per place. [2024-11-10 18:26:08,105 INFO L140 encePairwiseOnDemand]: 287/431 looper letters, 128 selfloop transitions, 0 changer transitions 0/284 dead transitions. [2024-11-10 18:26:08,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 284 transitions, 838 flow [2024-11-10 18:26:08,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 18:26:08,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-10 18:26:08,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 584 transitions. [2024-11-10 18:26:08,127 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6774941995359629 [2024-11-10 18:26:08,131 INFO L175 Difference]: Start difference. First operand has 287 places, 431 transitions, 876 flow. Second operand 2 states and 584 transitions. [2024-11-10 18:26:08,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 284 transitions, 838 flow [2024-11-10 18:26:08,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 284 transitions, 838 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:26:08,152 INFO L231 Difference]: Finished difference. Result has 275 places, 284 transitions, 582 flow [2024-11-10 18:26:08,156 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=431, PETRI_DIFFERENCE_MINUEND_FLOW=582, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=284, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=582, PETRI_PLACES=275, PETRI_TRANSITIONS=284} [2024-11-10 18:26:08,161 INFO L277 CegarLoopForPetriNet]: 287 programPoint places, -12 predicate places. [2024-11-10 18:26:08,162 INFO L471 AbstractCegarLoop]: Abstraction has has 275 places, 284 transitions, 582 flow [2024-11-10 18:26:08,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 158.0) internal successors, (316), 2 states have internal predecessors, (316), 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) [2024-11-10 18:26:08,162 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:26:08,163 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:26:08,163 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 18:26:08,163 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2024-11-10 18:26:08,164 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:26:08,164 INFO L85 PathProgramCache]: Analyzing trace with hash 621626439, now seen corresponding path program 1 times [2024-11-10 18:26:08,164 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:26:08,165 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1392795408] [2024-11-10 18:26:08,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:26:08,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:26:08,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:26:08,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:26:08,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:26:08,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1392795408] [2024-11-10 18:26:08,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1392795408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:26:08,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:26:08,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-10 18:26:08,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448690518] [2024-11-10 18:26:08,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:26:08,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-10 18:26:08,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:26:08,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-10 18:26:08,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-10 18:26:08,367 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 150 out of 431 [2024-11-10 18:26:08,368 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 284 transitions, 582 flow. Second operand has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2024-11-10 18:26:08,368 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:26:08,368 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 150 of 431 [2024-11-10 18:26:08,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:26:20,481 INFO L124 PetriNetUnfolderBase]: 59353/116507 cut-off events. [2024-11-10 18:26:20,481 INFO L125 PetriNetUnfolderBase]: For 162/162 co-relation queries the response was YES. [2024-11-10 18:26:20,826 INFO L83 FinitePrefix]: Finished finitePrefix Result has 204261 conditions, 116507 events. 59353/116507 cut-off events. For 162/162 co-relation queries the response was YES. Maximal size of possible extension queue 3299. Compared 1310139 event pairs, 41483 based on Foata normal form. 0/94272 useless extension candidates. Maximal degree in co-relation 204256. Up to 71073 conditions per place. [2024-11-10 18:26:21,440 INFO L140 encePairwiseOnDemand]: 426/431 looper letters, 238 selfloop transitions, 2 changer transitions 0/390 dead transitions. [2024-11-10 18:26:21,441 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 390 transitions, 1274 flow [2024-11-10 18:26:21,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-10 18:26:21,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-10 18:26:21,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 693 transitions. [2024-11-10 18:26:21,446 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5359628770301624 [2024-11-10 18:26:21,447 INFO L175 Difference]: Start difference. First operand has 275 places, 284 transitions, 582 flow. Second operand 3 states and 693 transitions. [2024-11-10 18:26:21,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 390 transitions, 1274 flow [2024-11-10 18:26:21,458 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 390 transitions, 1274 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-10 18:26:21,467 INFO L231 Difference]: Finished difference. Result has 274 places, 281 transitions, 580 flow [2024-11-10 18:26:21,469 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=431, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=580, PETRI_PLACES=274, PETRI_TRANSITIONS=281} [2024-11-10 18:26:21,469 INFO L277 CegarLoopForPetriNet]: 287 programPoint places, -13 predicate places. [2024-11-10 18:26:21,470 INFO L471 AbstractCegarLoop]: Abstraction has has 274 places, 281 transitions, 580 flow [2024-11-10 18:26:21,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 151.33333333333334) internal successors, (454), 3 states have internal predecessors, (454), 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) [2024-11-10 18:26:21,471 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:26:21,471 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:26:21,471 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 18:26:21,471 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2024-11-10 18:26:21,472 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:26:21,472 INFO L85 PathProgramCache]: Analyzing trace with hash 621626440, now seen corresponding path program 1 times [2024-11-10 18:26:21,472 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:26:21,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1539364301] [2024-11-10 18:26:21,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:26:21,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:26:21,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:26:21,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:26:21,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:26:21,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1539364301] [2024-11-10 18:26:21,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1539364301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:26:21,701 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:26:21,701 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:26:21,701 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1316251832] [2024-11-10 18:26:21,702 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:26:21,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-10 18:26:21,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:26:21,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-10 18:26:21,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-10 18:26:21,736 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 154 out of 431 [2024-11-10 18:26:21,737 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 274 places, 281 transitions, 580 flow. Second operand has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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) [2024-11-10 18:26:21,738 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:26:21,738 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 154 of 431 [2024-11-10 18:26:21,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-10 18:26:31,199 INFO L124 PetriNetUnfolderBase]: 47949/94841 cut-off events. [2024-11-10 18:26:31,200 INFO L125 PetriNetUnfolderBase]: For 2689/2689 co-relation queries the response was YES. [2024-11-10 18:26:31,524 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168453 conditions, 94841 events. 47949/94841 cut-off events. For 2689/2689 co-relation queries the response was YES. Maximal size of possible extension queue 2864. Compared 1046563 event pairs, 31208 based on Foata normal form. 56/76420 useless extension candidates. Maximal degree in co-relation 168447. Up to 54234 conditions per place. [2024-11-10 18:26:31,921 INFO L140 encePairwiseOnDemand]: 424/431 looper letters, 295 selfloop transitions, 5 changer transitions 0/451 dead transitions. [2024-11-10 18:26:31,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 451 transitions, 1520 flow [2024-11-10 18:26:31,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-10 18:26:31,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-10 18:26:31,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 918 transitions. [2024-11-10 18:26:31,925 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5324825986078886 [2024-11-10 18:26:31,925 INFO L175 Difference]: Start difference. First operand has 274 places, 281 transitions, 580 flow. Second operand 4 states and 918 transitions. [2024-11-10 18:26:31,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 451 transitions, 1520 flow [2024-11-10 18:26:31,965 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 451 transitions, 1516 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-10 18:26:31,973 INFO L231 Difference]: Finished difference. Result has 276 places, 281 transitions, 598 flow [2024-11-10 18:26:31,973 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=431, PETRI_DIFFERENCE_MINUEND_FLOW=574, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=598, PETRI_PLACES=276, PETRI_TRANSITIONS=281} [2024-11-10 18:26:31,974 INFO L277 CegarLoopForPetriNet]: 287 programPoint places, -11 predicate places. [2024-11-10 18:26:31,974 INFO L471 AbstractCegarLoop]: Abstraction has has 276 places, 281 transitions, 598 flow [2024-11-10 18:26:31,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 155.0) internal successors, (620), 4 states have internal predecessors, (620), 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) [2024-11-10 18:26:31,975 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:26:31,975 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 18:26:31,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-10 18:26:31,975 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2024-11-10 18:26:31,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:26:31,976 INFO L85 PathProgramCache]: Analyzing trace with hash -115963051, now seen corresponding path program 1 times [2024-11-10 18:26:31,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:26:31,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713543674] [2024-11-10 18:26:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:26:31,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:26:32,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 18:26:32,012 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-10 18:26:32,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-10 18:26:32,074 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-10 18:26:32,074 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-10 18:26:32,076 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (88 of 89 remaining) [2024-11-10 18:26:32,080 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 89 remaining) [2024-11-10 18:26:32,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 89 remaining) [2024-11-10 18:26:32,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 89 remaining) [2024-11-10 18:26:32,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 89 remaining) [2024-11-10 18:26:32,081 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 89 remaining) [2024-11-10 18:26:32,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 89 remaining) [2024-11-10 18:26:32,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 89 remaining) [2024-11-10 18:26:32,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 89 remaining) [2024-11-10 18:26:32,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 89 remaining) [2024-11-10 18:26:32,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 89 remaining) [2024-11-10 18:26:32,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONMEMORY_LEAK (77 of 89 remaining) [2024-11-10 18:26:32,082 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 89 remaining) [2024-11-10 18:26:32,083 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 89 remaining) [2024-11-10 18:26:32,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 89 remaining) [2024-11-10 18:26:32,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (66 of 89 remaining) [2024-11-10 18:26:32,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (65 of 89 remaining) [2024-11-10 18:26:32,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (64 of 89 remaining) [2024-11-10 18:26:32,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (63 of 89 remaining) [2024-11-10 18:26:32,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 89 remaining) [2024-11-10 18:26:32,084 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 89 remaining) [2024-11-10 18:26:32,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 89 remaining) [2024-11-10 18:26:32,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 89 remaining) [2024-11-10 18:26:32,085 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 89 remaining) [2024-11-10 18:26:32,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 89 remaining) [2024-11-10 18:26:32,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 89 remaining) [2024-11-10 18:26:32,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 89 remaining) [2024-11-10 18:26:32,087 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 89 remaining) [2024-11-10 18:26:32,088 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 89 remaining) [2024-11-10 18:26:32,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 89 remaining) [2024-11-10 18:26:32,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 89 remaining) [2024-11-10 18:26:32,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 89 remaining) [2024-11-10 18:26:32,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 89 remaining) [2024-11-10 18:26:32,089 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 89 remaining) [2024-11-10 18:26:32,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 89 remaining) [2024-11-10 18:26:32,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 89 remaining) [2024-11-10 18:26:32,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 89 remaining) [2024-11-10 18:26:32,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 89 remaining) [2024-11-10 18:26:32,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 89 remaining) [2024-11-10 18:26:32,090 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 89 remaining) [2024-11-10 18:26:32,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 89 remaining) [2024-11-10 18:26:32,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 89 remaining) [2024-11-10 18:26:32,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 89 remaining) [2024-11-10 18:26:32,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 89 remaining) [2024-11-10 18:26:32,091 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 89 remaining) [2024-11-10 18:26:32,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 89 remaining) [2024-11-10 18:26:32,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 89 remaining) [2024-11-10 18:26:32,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 89 remaining) [2024-11-10 18:26:32,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 89 remaining) [2024-11-10 18:26:32,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 89 remaining) [2024-11-10 18:26:32,092 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 89 remaining) [2024-11-10 18:26:32,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 89 remaining) [2024-11-10 18:26:32,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 89 remaining) [2024-11-10 18:26:32,093 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONMEMORY_LEAK (28 of 89 remaining) [2024-11-10 18:26:32,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 89 remaining) [2024-11-10 18:26:32,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 89 remaining) [2024-11-10 18:26:32,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 89 remaining) [2024-11-10 18:26:32,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 89 remaining) [2024-11-10 18:26:32,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 89 remaining) [2024-11-10 18:26:32,094 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 89 remaining) [2024-11-10 18:26:32,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 89 remaining) [2024-11-10 18:26:32,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 89 remaining) [2024-11-10 18:26:32,095 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 89 remaining) [2024-11-10 18:26:32,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 89 remaining) [2024-11-10 18:26:32,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 89 remaining) [2024-11-10 18:26:32,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 89 remaining) [2024-11-10 18:26:32,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 89 remaining) [2024-11-10 18:26:32,099 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 89 remaining) [2024-11-10 18:26:32,100 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 89 remaining) [2024-11-10 18:26:32,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 89 remaining) [2024-11-10 18:26:32,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 89 remaining) [2024-11-10 18:26:32,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 89 remaining) [2024-11-10 18:26:32,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 89 remaining) [2024-11-10 18:26:32,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 89 remaining) [2024-11-10 18:26:32,101 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 89 remaining) [2024-11-10 18:26:32,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-10 18:26:32,102 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-10 18:26:32,105 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-10 18:26:32,107 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-10 18:26:32,318 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-11-10 18:26:32,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 508 places, 768 transitions, 1568 flow [2024-11-10 18:26:32,838 INFO L124 PetriNetUnfolderBase]: 735/2175 cut-off events. [2024-11-10 18:26:32,839 INFO L125 PetriNetUnfolderBase]: For 40/49 co-relation queries the response was YES. [2024-11-10 18:26:32,965 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2232 conditions, 2175 events. 735/2175 cut-off events. For 40/49 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 14293 event pairs, 1 based on Foata normal form. 0/1189 useless extension candidates. Maximal degree in co-relation 1346. Up to 48 conditions per place. [2024-11-10 18:26:32,965 INFO L82 GeneralOperation]: Start removeDead. Operand has 508 places, 768 transitions, 1568 flow [2024-11-10 18:26:33,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 508 places, 768 transitions, 1568 flow [2024-11-10 18:26:33,360 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 18:26:33,365 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;@225dae74, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 18:26:33,369 INFO L334 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2024-11-10 18:26:33,371 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-10 18:26:33,372 INFO L124 PetriNetUnfolderBase]: 7/20 cut-off events. [2024-11-10 18:26:33,372 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-10 18:26:33,372 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-10 18:26:33,372 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-10 18:26:33,372 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 125 more)] === [2024-11-10 18:26:33,376 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 18:26:33,377 INFO L85 PathProgramCache]: Analyzing trace with hash 362441993, now seen corresponding path program 1 times [2024-11-10 18:26:33,377 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 18:26:33,377 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259610020] [2024-11-10 18:26:33,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 18:26:33,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 18:26:33,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 18:26:33,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-10 18:26:33,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 18:26:33,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259610020] [2024-11-10 18:26:33,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259610020] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 18:26:33,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 18:26:33,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 18:26:33,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887553793] [2024-11-10 18:26:33,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 18:26:33,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 18:26:33,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 18:26:33,407 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 18:26:33,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 18:26:33,408 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 768 [2024-11-10 18:26:33,409 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 508 places, 768 transitions, 1568 flow. Second operand has 2 states, 2 states have (on average 266.0) internal successors, (532), 2 states have internal predecessors, (532), 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) [2024-11-10 18:26:33,409 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-10 18:26:33,409 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 768 [2024-11-10 18:26:33,410 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand