./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/libvsync/hemlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/hemlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-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 ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 32f4670f2030763bd67badb5cbfcc478b68d183a08014f4e493405aced06d0a1 --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:20:08,710 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:20:08,770 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:20:08,774 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:20:08,774 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:20:08,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:20:08,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:20:08,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:20:08,795 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:20:08,796 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:20:08,796 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:20:08,797 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:20:08,797 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:20:08,797 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:20:08,797 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:20:08,797 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:20:08,797 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:20:08,797 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:20:08,798 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:20:08,798 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:20:08,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:20:08,799 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:20:08,799 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:20:08,799 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:20:08,799 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:20:08,799 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:20:08,799 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:20:08,799 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:20:08,800 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:20:08,800 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:20:08,800 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:20:08,800 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/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 ! data-race) ) 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 -> 32f4670f2030763bd67badb5cbfcc478b68d183a08014f4e493405aced06d0a1 [2025-03-17 11:20:09,011 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:20:09,019 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:20:09,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:20:09,023 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:20:09,023 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:20:09,024 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/hemlock.i [2025-03-17 11:20:10,184 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a1d352c/7de017b444874b9e9ef75f69769d1ad5/FLAGd831d4154 [2025-03-17 11:20:10,597 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:20:10,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hemlock.i [2025-03-17 11:20:10,631 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a1d352c/7de017b444874b9e9ef75f69769d1ad5/FLAGd831d4154 [2025-03-17 11:20:10,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60a1d352c/7de017b444874b9e9ef75f69769d1ad5 [2025-03-17 11:20:10,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:20:10,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:20:10,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:20:10,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:20:10,753 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:20:10,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:20:10" (1/1) ... [2025-03-17 11:20:10,755 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ec5d499 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:10, skipping insertion in model container [2025-03-17 11:20:10,755 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:20:10" (1/1) ... [2025-03-17 11:20:10,816 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:20:12,637 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:20:12,647 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:20:12,743 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-17 11:20:12,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-17 11:20:12,745 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-17 11:20:12,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-17 11:20:12,746 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-17 11:20:12,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-17 11:20:12,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-17 11:20:12,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-17 11:20:12,747 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-17 11:20:12,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-17 11:20:12,749 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-17 11:20:12,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-17 11:20:12,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-17 11:20:12,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-17 11:20:12,750 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-17 11:20:12,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-17 11:20:12,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-17 11:20:12,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-17 11:20:12,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-17 11:20:12,751 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-17 11:20:12,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-17 11:20:12,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-17 11:20:12,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-17 11:20:12,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-17 11:20:12,752 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-17 11:20:12,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-17 11:20:12,754 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-17 11:20:12,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-17 11:20:12,756 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-17 11:20:12,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-17 11:20:12,757 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-17 11:20:12,758 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-17 11:20:12,759 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-17 11:20:12,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-17 11:20:12,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-17 11:20:12,760 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-17 11:20:12,761 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-17 11:20:12,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-17 11:20:12,762 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-17 11:20:12,763 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-17 11:20:12,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-17 11:20:12,764 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-17 11:20:12,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-17 11:20:12,765 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-17 11:20:12,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-17 11:20:12,767 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-17 11:20:12,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-17 11:20:12,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-17 11:20:12,768 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-17 11:20:12,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-17 11:20:12,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-17 11:20:12,769 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-17 11:20:12,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-17 11:20:12,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-17 11:20:12,770 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-17 11:20:12,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-17 11:20:12,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-17 11:20:12,771 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-17 11:20:12,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-17 11:20:12,772 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-17 11:20:12,773 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-17 11:20:12,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-17 11:20:12,774 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-17 11:20:12,775 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-17 11:20:12,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-17 11:20:12,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-17 11:20:12,776 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-17 11:20:12,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-17 11:20:12,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-17 11:20:12,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-17 11:20:12,777 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-17 11:20:12,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-17 11:20:12,778 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-17 11:20:12,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-17 11:20:12,779 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-17 11:20:12,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-17 11:20:12,780 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-17 11:20:12,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-17 11:20:12,782 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-17 11:20:12,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-17 11:20:12,783 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-17 11:20:12,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-17 11:20:12,784 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-17 11:20:12,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-17 11:20:12,785 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-17 11:20:12,786 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-17 11:20:12,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-17 11:20:12,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-17 11:20:12,787 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-17 11:20:12,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-17 11:20:12,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-17 11:20:12,789 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-17 11:20:12,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-17 11:20:12,790 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-17 11:20:12,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-17 11:20:12,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-17 11:20:12,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-17 11:20:12,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-17 11:20:12,791 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-17 11:20:12,792 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-17 11:20:12,843 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:20:13,060 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:20:13,060 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13 WrapperNode [2025-03-17 11:20:13,061 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:20:13,061 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:20:13,061 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:20:13,061 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:20:13,066 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,159 INFO L138 Inliner]: procedures = 919, calls = 930, calls flagged for inlining = 826, calls inlined = 97, statements flattened = 1041 [2025-03-17 11:20:13,160 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:20:13,160 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:20:13,160 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:20:13,160 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:20:13,176 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,176 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,183 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,216 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,219 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,223 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,225 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,231 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:20:13,232 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:20:13,232 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:20:13,232 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:20:13,233 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (1/1) ... [2025-03-17 11:20:13,236 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:20:13,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:20:13,263 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) [2025-03-17 11:20:13,266 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 [2025-03-17 11:20:13,284 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 11:20:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:20:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-17 11:20:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:20:13,285 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:20:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-17 11:20:13,285 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-17 11:20:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:20:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-17 11:20:13,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 11:20:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:20:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-17 11:20:13,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:20:13,287 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:20:13,434 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:20:13,436 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:20:13,684 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6019: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-17 11:20:13,685 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6019-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-17 11:20:14,545 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3700: havoc vatomicptr_cmpxchg_rel_#t~ret419#1.base, vatomicptr_cmpxchg_rel_#t~ret419#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3700-10: havoc vatomicptr_cmpxchg_rel_#t~ret419#1.base, vatomicptr_cmpxchg_rel_#t~ret419#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3700-20: havoc vatomicptr_cmpxchg_rel_#t~ret419#1.base, vatomicptr_cmpxchg_rel_#t~ret419#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3705: havoc vatomicptr_await_eq_rlx_#t~ret420#1.base, vatomicptr_await_eq_rlx_#t~ret420#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3705-10: havoc vatomicptr_await_eq_rlx_#t~ret420#1.base, vatomicptr_await_eq_rlx_#t~ret420#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3705-20: havoc vatomicptr_await_eq_rlx_#t~ret420#1.base, vatomicptr_await_eq_rlx_#t~ret420#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3720: havoc vatomicptr_await_neq_acq_#t~ret423#1.base, vatomicptr_await_neq_acq_#t~ret423#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3720-10: havoc vatomicptr_await_neq_acq_#t~ret423#1.base, vatomicptr_await_neq_acq_#t~ret423#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3720-20: havoc vatomicptr_await_neq_acq_#t~ret423#1.base, vatomicptr_await_neq_acq_#t~ret423#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3655: havoc vatomicptr_read_rlx_#t~ret412#1.base, vatomicptr_read_rlx_#t~ret412#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3655-10: havoc vatomicptr_read_rlx_#t~ret412#1.base, vatomicptr_read_rlx_#t~ret412#1.offset; [2025-03-17 11:20:14,546 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L3655-20: havoc vatomicptr_read_rlx_#t~ret412#1.base, vatomicptr_read_rlx_#t~ret412#1.offset; [2025-03-17 11:20:14,547 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:20:14,547 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:20:14,783 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:20:14,783 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:20:14,784 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:20:14 BoogieIcfgContainer [2025-03-17 11:20:14,784 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:20:14,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:20:14,789 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:20:14,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:20:14,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:20:10" (1/3) ... [2025-03-17 11:20:14,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a24d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:20:14, skipping insertion in model container [2025-03-17 11:20:14,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:13" (2/3) ... [2025-03-17 11:20:14,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15a24d12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:20:14, skipping insertion in model container [2025-03-17 11:20:14,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:20:14" (3/3) ... [2025-03-17 11:20:14,795 INFO L128 eAbstractionObserver]: Analyzing ICFG hemlock.i [2025-03-17 11:20:14,807 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:20:14,808 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hemlock.i that has 2 procedures, 975 locations, 1 initial locations, 36 loop locations, and 39 error locations. [2025-03-17 11:20:14,809 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:20:15,064 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 11:20:15,116 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 978 places, 1130 transitions, 2267 flow [2025-03-17 11:20:15,361 INFO L124 PetriNetUnfolderBase]: 169/1205 cut-off events. [2025-03-17 11:20:15,365 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:20:15,389 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 1205 events. 169/1205 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4522 event pairs, 0 based on Foata normal form. 0/989 useless extension candidates. Maximal degree in co-relation 1086. Up to 8 conditions per place. [2025-03-17 11:20:15,389 INFO L82 GeneralOperation]: Start removeDead. Operand has 978 places, 1130 transitions, 2267 flow [2025-03-17 11:20:15,406 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 978 places, 1130 transitions, 2267 flow [2025-03-17 11:20:15,417 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:20:15,425 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=LoopHeads, 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;@39b49569, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:20:15,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2025-03-17 11:20:15,439 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:20:15,439 INFO L124 PetriNetUnfolderBase]: 12/64 cut-off events. [2025-03-17 11:20:15,440 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:20:15,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:15,442 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:15,443 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2025-03-17 11:20:15,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:15,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1665880570, now seen corresponding path program 1 times [2025-03-17 11:20:15,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:15,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835990727] [2025-03-17 11:20:15,452 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:15,452 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:15,521 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 11:20:15,533 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 11:20:15,535 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:15,535 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:15,625 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:15,627 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:15,627 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835990727] [2025-03-17 11:20:15,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835990727] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:15,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:15,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:15,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169487276] [2025-03-17 11:20:15,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:15,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:20:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:15,655 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:20:15,656 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:20:15,661 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 946 out of 1130 [2025-03-17 11:20:15,668 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 1130 transitions, 2267 flow. Second operand has 2 states, 2 states have (on average 946.5) internal successors, (1893), 2 states have internal predecessors, (1893), 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) [2025-03-17 11:20:15,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:15,668 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 946 of 1130 [2025-03-17 11:20:15,671 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:15,985 INFO L124 PetriNetUnfolderBase]: 27/1025 cut-off events. [2025-03-17 11:20:15,985 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-17 11:20:15,991 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1057 conditions, 1025 events. 27/1025 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 3978 event pairs, 0 based on Foata normal form. 346/1323 useless extension candidates. Maximal degree in co-relation 954. Up to 27 conditions per place. [2025-03-17 11:20:15,995 INFO L140 encePairwiseOnDemand]: 972/1130 looper letters, 26 selfloop transitions, 0 changer transitions 0/968 dead transitions. [2025-03-17 11:20:15,995 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 968 transitions, 1995 flow [2025-03-17 11:20:16,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:20:16,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 11:20:16,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2076 transitions. [2025-03-17 11:20:16,018 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9185840707964602 [2025-03-17 11:20:16,021 INFO L175 Difference]: Start difference. First operand has 978 places, 1130 transitions, 2267 flow. Second operand 2 states and 2076 transitions. [2025-03-17 11:20:16,022 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 968 transitions, 1995 flow [2025-03-17 11:20:16,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 945 places, 968 transitions, 1995 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:16,042 INFO L231 Difference]: Finished difference. Result has 945 places, 968 transitions, 1943 flow [2025-03-17 11:20:16,045 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1130, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=944, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=968, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1943, PETRI_PLACES=945, PETRI_TRANSITIONS=968} [2025-03-17 11:20:16,047 INFO L279 CegarLoopForPetriNet]: 978 programPoint places, -33 predicate places. [2025-03-17 11:20:16,048 INFO L471 AbstractCegarLoop]: Abstraction has has 945 places, 968 transitions, 1943 flow [2025-03-17 11:20:16,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 946.5) internal successors, (1893), 2 states have internal predecessors, (1893), 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) [2025-03-17 11:20:16,049 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:16,049 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:16,049 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:20:16,049 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2025-03-17 11:20:16,049 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:16,050 INFO L85 PathProgramCache]: Analyzing trace with hash 335875419, now seen corresponding path program 1 times [2025-03-17 11:20:16,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:16,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153311214] [2025-03-17 11:20:16,050 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:16,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:16,064 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 11:20:16,092 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 11:20:16,092 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:16,092 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:16,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:16,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:16,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153311214] [2025-03-17 11:20:16,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153311214] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:16,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:16,912 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:20:16,912 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [847645306] [2025-03-17 11:20:16,912 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:16,913 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:20:16,913 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:16,915 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:20:16,915 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:20:17,064 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 927 out of 1130 [2025-03-17 11:20:17,069 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 945 places, 968 transitions, 1943 flow. Second operand has 6 states, 6 states have (on average 928.5) internal successors, (5571), 6 states have internal predecessors, (5571), 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) [2025-03-17 11:20:17,070 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:17,070 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 927 of 1130 [2025-03-17 11:20:17,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:18,355 INFO L124 PetriNetUnfolderBase]: 706/8206 cut-off events. [2025-03-17 11:20:18,355 INFO L125 PetriNetUnfolderBase]: For 6/20 co-relation queries the response was YES. [2025-03-17 11:20:18,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9304 conditions, 8206 events. 706/8206 cut-off events. For 6/20 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 89291 event pairs, 237 based on Foata normal form. 4/7521 useless extension candidates. Maximal degree in co-relation 9300. Up to 936 conditions per place. [2025-03-17 11:20:18,392 INFO L140 encePairwiseOnDemand]: 1099/1130 looper letters, 44 selfloop transitions, 102 changer transitions 0/1069 dead transitions. [2025-03-17 11:20:18,392 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 950 places, 1069 transitions, 2437 flow [2025-03-17 11:20:18,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:20:18,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:20:18,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 5709 transitions. [2025-03-17 11:20:18,402 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8420353982300885 [2025-03-17 11:20:18,402 INFO L175 Difference]: Start difference. First operand has 945 places, 968 transitions, 1943 flow. Second operand 6 states and 5709 transitions. [2025-03-17 11:20:18,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 950 places, 1069 transitions, 2437 flow [2025-03-17 11:20:18,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 1069 transitions, 2437 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:18,417 INFO L231 Difference]: Finished difference. Result has 955 places, 1069 transitions, 2613 flow [2025-03-17 11:20:18,418 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1130, PETRI_DIFFERENCE_MINUEND_FLOW=1943, PETRI_DIFFERENCE_MINUEND_PLACES=945, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=968, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=938, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2613, PETRI_PLACES=955, PETRI_TRANSITIONS=1069} [2025-03-17 11:20:18,419 INFO L279 CegarLoopForPetriNet]: 978 programPoint places, -23 predicate places. [2025-03-17 11:20:18,419 INFO L471 AbstractCegarLoop]: Abstraction has has 955 places, 1069 transitions, 2613 flow [2025-03-17 11:20:18,422 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 928.5) internal successors, (5571), 6 states have internal predecessors, (5571), 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) [2025-03-17 11:20:18,422 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:18,422 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:18,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:20:18,422 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2025-03-17 11:20:18,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:18,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1346827873, now seen corresponding path program 1 times [2025-03-17 11:20:18,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:18,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721161965] [2025-03-17 11:20:18,423 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:18,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:18,430 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 11:20:18,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 11:20:18,432 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:18,432 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:18,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:18,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:18,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721161965] [2025-03-17 11:20:18,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721161965] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:18,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:18,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:18,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [253944664] [2025-03-17 11:20:18,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:18,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:18,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:18,454 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:18,454 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:18,470 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 936 out of 1130 [2025-03-17 11:20:18,473 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 955 places, 1069 transitions, 2613 flow. Second operand has 3 states, 3 states have (on average 936.6666666666666) internal successors, (2810), 3 states have internal predecessors, (2810), 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) [2025-03-17 11:20:18,473 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:18,473 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 936 of 1130 [2025-03-17 11:20:18,473 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:19,796 INFO L124 PetriNetUnfolderBase]: 717/10905 cut-off events. [2025-03-17 11:20:19,797 INFO L125 PetriNetUnfolderBase]: For 1045/1894 co-relation queries the response was YES. [2025-03-17 11:20:19,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12799 conditions, 10905 events. 717/10905 cut-off events. For 1045/1894 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 114124 event pairs, 54 based on Foata normal form. 97/10397 useless extension candidates. Maximal degree in co-relation 12790. Up to 563 conditions per place. [2025-03-17 11:20:19,848 INFO L140 encePairwiseOnDemand]: 1121/1130 looper letters, 154 selfloop transitions, 6 changer transitions 0/1097 dead transitions. [2025-03-17 11:20:19,849 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 956 places, 1097 transitions, 3037 flow [2025-03-17 11:20:19,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:19,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:19,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2875 transitions. [2025-03-17 11:20:19,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8480825958702065 [2025-03-17 11:20:19,854 INFO L175 Difference]: Start difference. First operand has 955 places, 1069 transitions, 2613 flow. Second operand 3 states and 2875 transitions. [2025-03-17 11:20:19,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 956 places, 1097 transitions, 3037 flow [2025-03-17 11:20:19,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 956 places, 1097 transitions, 3037 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:19,870 INFO L231 Difference]: Finished difference. Result has 958 places, 1073 transitions, 2659 flow [2025-03-17 11:20:19,871 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1130, PETRI_DIFFERENCE_MINUEND_FLOW=2611, PETRI_DIFFERENCE_MINUEND_PLACES=954, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1068, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1062, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2659, PETRI_PLACES=958, PETRI_TRANSITIONS=1073} [2025-03-17 11:20:19,872 INFO L279 CegarLoopForPetriNet]: 978 programPoint places, -20 predicate places. [2025-03-17 11:20:19,872 INFO L471 AbstractCegarLoop]: Abstraction has has 958 places, 1073 transitions, 2659 flow [2025-03-17 11:20:19,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 936.6666666666666) internal successors, (2810), 3 states have internal predecessors, (2810), 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) [2025-03-17 11:20:19,873 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:19,873 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:19,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:20:19,873 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2025-03-17 11:20:19,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:19,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1516351734, now seen corresponding path program 1 times [2025-03-17 11:20:19,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:19,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678873787] [2025-03-17 11:20:19,874 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:19,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:19,881 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 48 statements into 1 equivalence classes. [2025-03-17 11:20:19,886 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 48 of 48 statements. [2025-03-17 11:20:19,887 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:19,887 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:19,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:19,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:19,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678873787] [2025-03-17 11:20:19,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678873787] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:19,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:19,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:19,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572576463] [2025-03-17 11:20:19,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:19,904 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:19,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:19,904 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:19,904 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:19,915 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 939 out of 1130 [2025-03-17 11:20:19,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 1073 transitions, 2659 flow. Second operand has 3 states, 3 states have (on average 939.6666666666666) internal successors, (2819), 3 states have internal predecessors, (2819), 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) [2025-03-17 11:20:19,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:19,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 939 of 1130 [2025-03-17 11:20:19,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:21,424 INFO L124 PetriNetUnfolderBase]: 830/14472 cut-off events. [2025-03-17 11:20:21,424 INFO L125 PetriNetUnfolderBase]: For 1195/1698 co-relation queries the response was YES. [2025-03-17 11:20:21,456 INFO L83 FinitePrefix]: Finished finitePrefix Result has 16744 conditions, 14472 events. 830/14472 cut-off events. For 1195/1698 co-relation queries the response was YES. Maximal size of possible extension queue 147. Compared 159099 event pairs, 62 based on Foata normal form. 97/13866 useless extension candidates. Maximal degree in co-relation 16733. Up to 653 conditions per place. [2025-03-17 11:20:21,480 INFO L140 encePairwiseOnDemand]: 1124/1130 looper letters, 151 selfloop transitions, 4 changer transitions 0/1099 dead transitions. [2025-03-17 11:20:21,480 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 959 places, 1099 transitions, 3069 flow [2025-03-17 11:20:21,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:21,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:21,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2878 transitions. [2025-03-17 11:20:21,485 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8489675516224189 [2025-03-17 11:20:21,485 INFO L175 Difference]: Start difference. First operand has 958 places, 1073 transitions, 2659 flow. Second operand 3 states and 2878 transitions. [2025-03-17 11:20:21,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 959 places, 1099 transitions, 3069 flow [2025-03-17 11:20:21,492 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 957 places, 1099 transitions, 3057 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:20:21,500 INFO L231 Difference]: Finished difference. Result has 959 places, 1075 transitions, 2675 flow [2025-03-17 11:20:21,502 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1130, PETRI_DIFFERENCE_MINUEND_FLOW=2645, PETRI_DIFFERENCE_MINUEND_PLACES=955, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1072, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1068, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2675, PETRI_PLACES=959, PETRI_TRANSITIONS=1075} [2025-03-17 11:20:21,503 INFO L279 CegarLoopForPetriNet]: 978 programPoint places, -19 predicate places. [2025-03-17 11:20:21,503 INFO L471 AbstractCegarLoop]: Abstraction has has 959 places, 1075 transitions, 2675 flow [2025-03-17 11:20:21,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 939.6666666666666) internal successors, (2819), 3 states have internal predecessors, (2819), 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) [2025-03-17 11:20:21,505 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:21,505 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:21,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:20:21,505 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2025-03-17 11:20:21,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:21,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1745530812, now seen corresponding path program 1 times [2025-03-17 11:20:21,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:21,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257929693] [2025-03-17 11:20:21,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:21,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:21,514 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-17 11:20:21,520 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-17 11:20:21,522 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:21,522 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:21,577 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:21,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:21,578 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257929693] [2025-03-17 11:20:21,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257929693] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:21,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:21,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:20:21,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665532284] [2025-03-17 11:20:21,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:21,579 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:21,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:21,580 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:21,580 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:21,602 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 940 out of 1130 [2025-03-17 11:20:21,605 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 959 places, 1075 transitions, 2675 flow. Second operand has 3 states, 3 states have (on average 941.3333333333334) internal successors, (2824), 3 states have internal predecessors, (2824), 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) [2025-03-17 11:20:21,605 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:21,605 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 940 of 1130 [2025-03-17 11:20:21,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:23,454 INFO L124 PetriNetUnfolderBase]: 786/15008 cut-off events. [2025-03-17 11:20:23,454 INFO L125 PetriNetUnfolderBase]: For 1184/1973 co-relation queries the response was YES. [2025-03-17 11:20:23,484 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17332 conditions, 15008 events. 786/15008 cut-off events. For 1184/1973 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 167588 event pairs, 60 based on Foata normal form. 101/14423 useless extension candidates. Maximal degree in co-relation 17320. Up to 788 conditions per place. [2025-03-17 11:20:23,505 INFO L140 encePairwiseOnDemand]: 1127/1130 looper letters, 153 selfloop transitions, 2 changer transitions 0/1102 dead transitions. [2025-03-17 11:20:23,506 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 961 places, 1102 transitions, 3099 flow [2025-03-17 11:20:23,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:23,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:23,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 2877 transitions. [2025-03-17 11:20:23,511 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8486725663716814 [2025-03-17 11:20:23,511 INFO L175 Difference]: Start difference. First operand has 959 places, 1075 transitions, 2675 flow. Second operand 3 states and 2877 transitions. [2025-03-17 11:20:23,511 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 961 places, 1102 transitions, 3099 flow [2025-03-17 11:20:23,519 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 959 places, 1102 transitions, 3091 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:20:23,527 INFO L231 Difference]: Finished difference. Result has 960 places, 1075 transitions, 2675 flow [2025-03-17 11:20:23,528 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1130, PETRI_DIFFERENCE_MINUEND_FLOW=2667, PETRI_DIFFERENCE_MINUEND_PLACES=957, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1073, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2675, PETRI_PLACES=960, PETRI_TRANSITIONS=1075} [2025-03-17 11:20:23,529 INFO L279 CegarLoopForPetriNet]: 978 programPoint places, -18 predicate places. [2025-03-17 11:20:23,529 INFO L471 AbstractCegarLoop]: Abstraction has has 960 places, 1075 transitions, 2675 flow [2025-03-17 11:20:23,531 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 941.3333333333334) internal successors, (2824), 3 states have internal predecessors, (2824), 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) [2025-03-17 11:20:23,531 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:23,531 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:23,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 11:20:23,531 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 71 more)] === [2025-03-17 11:20:23,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:23,532 INFO L85 PathProgramCache]: Analyzing trace with hash 291302540, now seen corresponding path program 1 times [2025-03-17 11:20:23,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:23,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058202808] [2025-03-17 11:20:23,532 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:23,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:23,543 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-17 11:20:23,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-17 11:20:23,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:23,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:20:23,556 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 11:20:23,560 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 59 statements into 1 equivalence classes. [2025-03-17 11:20:23,573 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 59 of 59 statements. [2025-03-17 11:20:23,574 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:23,574 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:20:23,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 11:20:23,603 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 11:20:23,604 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (73 of 74 remaining) [2025-03-17 11:20:23,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (72 of 74 remaining) [2025-03-17 11:20:23,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (71 of 74 remaining) [2025-03-17 11:20:23,605 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (70 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (69 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (68 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33ASSERT_VIOLATIONDATA_RACE (67 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (66 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (65 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32ASSERT_VIOLATIONDATA_RACE (64 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31ASSERT_VIOLATIONDATA_RACE (63 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (62 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (61 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (60 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (59 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (58 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (57 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (56 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28ASSERT_VIOLATIONDATA_RACE (55 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30ASSERT_VIOLATIONDATA_RACE (54 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (53 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (52 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (51 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (50 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (49 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (48 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29ASSERT_VIOLATIONDATA_RACE (47 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (46 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (45 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25ASSERT_VIOLATIONDATA_RACE (44 of 74 remaining) [2025-03-17 11:20:23,606 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27ASSERT_VIOLATIONDATA_RACE (43 of 74 remaining) [2025-03-17 11:20:23,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26ASSERT_VIOLATIONDATA_RACE (42 of 74 remaining) [2025-03-17 11:20:23,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (41 of 74 remaining) [2025-03-17 11:20:23,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (40 of 74 remaining) [2025-03-17 11:20:23,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24ASSERT_VIOLATIONDATA_RACE (39 of 74 remaining) [2025-03-17 11:20:23,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (38 of 74 remaining) [2025-03-17 11:20:23,609 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (37 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (36 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (35 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (34 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33ASSERT_VIOLATIONDATA_RACE (33 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (32 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (31 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32ASSERT_VIOLATIONDATA_RACE (30 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31ASSERT_VIOLATIONDATA_RACE (29 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (28 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (27 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (26 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (25 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (24 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (23 of 74 remaining) [2025-03-17 11:20:23,610 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (22 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28ASSERT_VIOLATIONDATA_RACE (21 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30ASSERT_VIOLATIONDATA_RACE (20 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (19 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (18 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (17 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (16 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (15 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (14 of 74 remaining) [2025-03-17 11:20:23,611 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29ASSERT_VIOLATIONDATA_RACE (13 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (12 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (11 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25ASSERT_VIOLATIONDATA_RACE (10 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27ASSERT_VIOLATIONDATA_RACE (9 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26ASSERT_VIOLATIONDATA_RACE (8 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (7 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (6 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24ASSERT_VIOLATIONDATA_RACE (5 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (4 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (3 of 74 remaining) [2025-03-17 11:20:23,612 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (2 of 74 remaining) [2025-03-17 11:20:23,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (1 of 74 remaining) [2025-03-17 11:20:23,613 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (0 of 74 remaining) [2025-03-17 11:20:23,613 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:20:23,613 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 11:20:23,615 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 11:20:23,616 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 11:20:23,867 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 11:20:23,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1852 places, 2137 transitions, 4290 flow [2025-03-17 11:20:24,800 INFO L124 PetriNetUnfolderBase]: 327/2350 cut-off events. [2025-03-17 11:20:24,801 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 11:20:24,938 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2362 conditions, 2350 events. 327/2350 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 12634 event pairs, 0 based on Foata normal form. 0/1932 useless extension candidates. Maximal degree in co-relation 2144. Up to 12 conditions per place. [2025-03-17 11:20:24,938 INFO L82 GeneralOperation]: Start removeDead. Operand has 1852 places, 2137 transitions, 4290 flow [2025-03-17 11:20:24,989 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1852 places, 2137 transitions, 4290 flow [2025-03-17 11:20:24,990 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:20:24,990 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=LoopHeads, 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;@39b49569, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:20:24,990 INFO L334 AbstractCegarLoop]: Starting to check reachability of 108 error locations. [2025-03-17 11:20:24,993 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:20:24,993 INFO L124 PetriNetUnfolderBase]: 12/64 cut-off events. [2025-03-17 11:20:24,993 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:20:24,993 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:24,993 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:24,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2025-03-17 11:20:24,994 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:24,994 INFO L85 PathProgramCache]: Analyzing trace with hash -1022424333, now seen corresponding path program 1 times [2025-03-17 11:20:24,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:24,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1350197028] [2025-03-17 11:20:24,994 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:24,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:25,003 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 39 statements into 1 equivalence classes. [2025-03-17 11:20:25,004 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 39 of 39 statements. [2025-03-17 11:20:25,004 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:25,004 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:25,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:25,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:25,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1350197028] [2025-03-17 11:20:25,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1350197028] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:25,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:25,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:25,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584461805] [2025-03-17 11:20:25,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:25,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:20:25,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:25,018 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:20:25,018 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:20:25,021 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1789 out of 2137 [2025-03-17 11:20:25,025 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1852 places, 2137 transitions, 4290 flow. Second operand has 2 states, 2 states have (on average 1789.5) internal successors, (3579), 2 states have internal predecessors, (3579), 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) [2025-03-17 11:20:25,025 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:25,025 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1789 of 2137 [2025-03-17 11:20:25,025 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:30,697 INFO L124 PetriNetUnfolderBase]: 1327/26938 cut-off events. [2025-03-17 11:20:30,697 INFO L125 PetriNetUnfolderBase]: For 257/257 co-relation queries the response was YES. [2025-03-17 11:20:30,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 28421 conditions, 26938 events. 1327/26938 cut-off events. For 257/257 co-relation queries the response was YES. Maximal size of possible extension queue 313. Compared 357699 event pairs, 648 based on Foata normal form. 10552/36102 useless extension candidates. Maximal degree in co-relation 2291. Up to 1351 conditions per place. [2025-03-17 11:20:31,058 INFO L140 encePairwiseOnDemand]: 1841/2137 looper letters, 52 selfloop transitions, 0 changer transitions 0/1837 dead transitions. [2025-03-17 11:20:31,058 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1789 places, 1837 transitions, 3794 flow [2025-03-17 11:20:31,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:20:31,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 11:20:31,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 3926 transitions. [2025-03-17 11:20:31,065 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9185774450163781 [2025-03-17 11:20:31,065 INFO L175 Difference]: Start difference. First operand has 1852 places, 2137 transitions, 4290 flow. Second operand 2 states and 3926 transitions. [2025-03-17 11:20:31,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1789 places, 1837 transitions, 3794 flow [2025-03-17 11:20:31,072 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1789 places, 1837 transitions, 3794 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:31,084 INFO L231 Difference]: Finished difference. Result has 1789 places, 1837 transitions, 3690 flow [2025-03-17 11:20:31,087 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=2137, PETRI_DIFFERENCE_MINUEND_FLOW=3690, PETRI_DIFFERENCE_MINUEND_PLACES=1788, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1837, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=3690, PETRI_PLACES=1789, PETRI_TRANSITIONS=1837} [2025-03-17 11:20:31,089 INFO L279 CegarLoopForPetriNet]: 1852 programPoint places, -63 predicate places. [2025-03-17 11:20:31,089 INFO L471 AbstractCegarLoop]: Abstraction has has 1789 places, 1837 transitions, 3690 flow [2025-03-17 11:20:31,091 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1789.5) internal successors, (3579), 2 states have internal predecessors, (3579), 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) [2025-03-17 11:20:31,091 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:31,091 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:31,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 11:20:31,091 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 105 more)] === [2025-03-17 11:20:31,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:31,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1849723084, now seen corresponding path program 1 times [2025-03-17 11:20:31,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:31,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559302264] [2025-03-17 11:20:31,092 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:31,092 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:31,100 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 41 statements into 1 equivalence classes. [2025-03-17 11:20:31,107 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 41 of 41 statements. [2025-03-17 11:20:31,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:31,110 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:31,518 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:31,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:31,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559302264] [2025-03-17 11:20:31,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559302264] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:31,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:31,519 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:20:31,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [407817632] [2025-03-17 11:20:31,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:31,520 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:20:31,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:31,520 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:20:31,520 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:20:31,644 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1770 out of 2137 [2025-03-17 11:20:31,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1789 places, 1837 transitions, 3690 flow. Second operand has 6 states, 6 states have (on average 1771.5) internal successors, (10629), 6 states have internal predecessors, (10629), 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) [2025-03-17 11:20:31,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:31,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1770 of 2137 [2025-03-17 11:20:31,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand