./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/libvsync/semaphore.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 551b0097 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/semaphore.i -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 --- Real Ultimate output --- This is Ultimate 0.3.0-?-551b009-m [2025-01-09 21:40:26,744 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-01-09 21:40:26,788 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-01-09 21:40:26,791 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-01-09 21:40:26,792 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-01-09 21:40:26,807 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-01-09 21:40:26,807 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-01-09 21:40:26,807 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-01-09 21:40:26,807 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-01-09 21:40:26,807 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-01-09 21:40:26,807 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-01-09 21:40:26,807 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-01-09 21:40:26,807 INFO L153 SettingsManager]: * Use SBE=true [2025-01-09 21:40:26,808 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * sizeof long=4 [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * sizeof long double=12 [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Use constant arrays=true [2025-01-09 21:40:26,808 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:40:26,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:40:26,809 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:40:26,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-01-09 21:40:26,809 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 [2025-01-09 21:40:26,969 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-01-09 21:40:26,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-01-09 21:40:26,975 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-01-09 21:40:26,976 INFO L270 PluginConnector]: Initializing CDTParser... [2025-01-09 21:40:26,976 INFO L274 PluginConnector]: CDTParser initialized [2025-01-09 21:40:26,977 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/semaphore.i [2025-01-09 21:40:28,092 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d0e8d8aa6/0245e5b6ab854eed951020c3da0ab573/FLAGe6aefb830 [2025-01-09 21:40:28,597 INFO L384 CDTParser]: Found 1 translation units. [2025-01-09 21:40:28,598 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/libvsync/semaphore.i [2025-01-09 21:40:28,637 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d0e8d8aa6/0245e5b6ab854eed951020c3da0ab573/FLAGe6aefb830 [2025-01-09 21:40:28,652 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d0e8d8aa6/0245e5b6ab854eed951020c3da0ab573 [2025-01-09 21:40:28,654 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-01-09 21:40:28,655 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-01-09 21:40:28,656 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-01-09 21:40:28,656 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-01-09 21:40:28,660 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-01-09 21:40:28,660 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:40:28" (1/1) ... [2025-01-09 21:40:28,661 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31725625 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:28, skipping insertion in model container [2025-01-09 21:40:28,661 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 09:40:28" (1/1) ... [2025-01-09 21:40:28,716 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-01-09 21:40:30,400 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:40:30,413 INFO L200 MainTranslator]: Completed pre-run [2025-01-09 21:40:30,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-01-09 21:40:30,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-01-09 21:40:30,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-01-09 21:40:30,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-01-09 21:40:30,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-01-09 21:40:30,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-01-09 21:40:30,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-01-09 21:40:30,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-01-09 21:40:30,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-01-09 21:40:30,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-01-09 21:40:30,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-01-09 21:40:30,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-01-09 21:40:30,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-01-09 21:40:30,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-01-09 21:40:30,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-01-09 21:40:30,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-01-09 21:40:30,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-01-09 21:40:30,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-01-09 21:40:30,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-01-09 21:40:30,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-01-09 21:40:30,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-01-09 21:40:30,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-01-09 21:40:30,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-01-09 21:40:30,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-01-09 21:40:30,547 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-01-09 21:40:30,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-01-09 21:40:30,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-01-09 21:40:30,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-01-09 21:40:30,548 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-01-09 21:40:30,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-01-09 21:40:30,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-01-09 21:40:30,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-01-09 21:40:30,549 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-01-09 21:40:30,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-01-09 21:40:30,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-01-09 21:40:30,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-01-09 21:40:30,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-01-09 21:40:30,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-01-09 21:40:30,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-01-09 21:40:30,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-01-09 21:40:30,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-01-09 21:40:30,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-01-09 21:40:30,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-01-09 21:40:30,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-01-09 21:40:30,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-01-09 21:40:30,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-01-09 21:40:30,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-01-09 21:40:30,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-01-09 21:40:30,560 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-01-09 21:40:30,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-01-09 21:40:30,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-01-09 21:40:30,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-01-09 21:40:30,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-01-09 21:40:30,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-01-09 21:40:30,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-01-09 21:40:30,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-01-09 21:40:30,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-01-09 21:40:30,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-01-09 21:40:30,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-01-09 21:40:30,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-01-09 21:40:30,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-01-09 21:40:30,568 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-01-09 21:40:30,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-01-09 21:40:30,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-01-09 21:40:30,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-01-09 21:40:30,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-01-09 21:40:30,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-01-09 21:40:30,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-01-09 21:40:30,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-01-09 21:40:30,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-01-09 21:40:30,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-01-09 21:40:30,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-01-09 21:40:30,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-01-09 21:40:30,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-01-09 21:40:30,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-01-09 21:40:30,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-01-09 21:40:30,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-01-09 21:40:30,576 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-01-09 21:40:30,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-01-09 21:40:30,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-01-09 21:40:30,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-01-09 21:40:30,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-01-09 21:40:30,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-01-09 21:40:30,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-01-09 21:40:30,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-01-09 21:40:30,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-01-09 21:40:30,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-01-09 21:40:30,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-01-09 21:40:30,582 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-01-09 21:40:30,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-01-09 21:40:30,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-01-09 21:40:30,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-01-09 21:40:30,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-01-09 21:40:30,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-01-09 21:40:30,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-01-09 21:40:30,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-01-09 21:40:30,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-01-09 21:40:30,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-01-09 21:40:30,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-01-09 21:40:30,588 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-01-09 21:40:30,636 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-01-09 21:40:30,803 INFO L204 MainTranslator]: Completed translation [2025-01-09 21:40:30,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30 WrapperNode [2025-01-09 21:40:30,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-01-09 21:40:30,804 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-01-09 21:40:30,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-01-09 21:40:30,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-01-09 21:40:30,808 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,856 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,912 INFO L138 Inliner]: procedures = 921, calls = 921, calls flagged for inlining = 820, calls inlined = 50, statements flattened = 585 [2025-01-09 21:40:30,913 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-01-09 21:40:30,913 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-01-09 21:40:30,914 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-01-09 21:40:30,914 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-01-09 21:40:30,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,919 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,923 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,923 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,934 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,938 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,943 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,945 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,946 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,949 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-01-09 21:40:30,950 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-01-09 21:40:30,950 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-01-09 21:40:30,950 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-01-09 21:40:30,950 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (1/1) ... [2025-01-09 21:40:30,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-01-09 21:40:30,968 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-01-09 21:40:30,979 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-01-09 21:40:30,981 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-01-09 21:40:30,997 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-01-09 21:40:30,997 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-01-09 21:40:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-01-09 21:40:30,998 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-01-09 21:40:30,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-01-09 21:40:30,999 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-01-09 21:40:31,140 INFO L234 CfgBuilder]: Building ICFG [2025-01-09 21:40:31,142 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-01-09 21:40:31,689 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-01-09 21:40:31,689 INFO L283 CfgBuilder]: Performing block encoding [2025-01-09 21:40:31,811 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-01-09 21:40:31,811 INFO L312 CfgBuilder]: Removed 48 assume(true) statements. [2025-01-09 21:40:31,811 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:40:31 BoogieIcfgContainer [2025-01-09 21:40:31,811 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-01-09 21:40:31,813 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-01-09 21:40:31,813 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-01-09 21:40:31,816 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-01-09 21:40:31,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 09:40:28" (1/3) ... [2025-01-09 21:40:31,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ee7724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:40:31, skipping insertion in model container [2025-01-09 21:40:31,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 09:40:30" (2/3) ... [2025-01-09 21:40:31,817 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40ee7724 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 09:40:31, skipping insertion in model container [2025-01-09 21:40:31,817 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 09:40:31" (3/3) ... [2025-01-09 21:40:31,818 INFO L128 eAbstractionObserver]: Analyzing ICFG semaphore.i [2025-01-09 21:40:31,827 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-01-09 21:40:31,828 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG semaphore.i that has 3 procedures, 575 locations, 1 initial locations, 53 loop locations, and 25 error locations. [2025-01-09 21:40:31,829 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-01-09 21:40:31,972 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-01-09 21:40:32,003 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 581 places, 684 transitions, 1382 flow [2025-01-09 21:40:32,288 INFO L124 PetriNetUnfolderBase]: 200/1217 cut-off events. [2025-01-09 21:40:32,290 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-01-09 21:40:32,317 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1230 conditions, 1217 events. 200/1217 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5189 event pairs, 0 based on Foata normal form. 0/961 useless extension candidates. Maximal degree in co-relation 714. Up to 12 conditions per place. [2025-01-09 21:40:32,318 INFO L82 GeneralOperation]: Start removeDead. Operand has 581 places, 684 transitions, 1382 flow [2025-01-09 21:40:32,339 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 581 places, 684 transitions, 1382 flow [2025-01-09 21:40:32,344 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:40:32,352 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;@74c9c8f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:40:32,352 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2025-01-09 21:40:32,357 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:40:32,357 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-01-09 21:40:32,358 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:40:32,358 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:40:32,358 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] [2025-01-09 21:40:32,359 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-01-09 21:40:32,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:40:32,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1688881894, now seen corresponding path program 1 times [2025-01-09 21:40:32,367 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:40:32,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081715263] [2025-01-09 21:40:32,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:40:32,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:40:32,424 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 21:40:32,439 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 21:40:32,440 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:40:32,440 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:40:32,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:40:32,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:40:32,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081715263] [2025-01-09 21:40:32,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081715263] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:40:32,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:40:32,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:40:32,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [44565043] [2025-01-09 21:40:32,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:40:32,789 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:40:32,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:40:32,809 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:40:32,810 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:40:32,812 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 560 out of 684 [2025-01-09 21:40:32,818 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 581 places, 684 transitions, 1382 flow. Second operand has 2 states, 2 states have (on average 560.5) internal successors, (1121), 2 states have internal predecessors, (1121), 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) [2025-01-09 21:40:32,818 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:40:32,818 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 560 of 684 [2025-01-09 21:40:32,821 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:40:33,321 INFO L124 PetriNetUnfolderBase]: 62/2444 cut-off events. [2025-01-09 21:40:33,321 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-01-09 21:40:33,335 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 2444 events. 62/2444 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 14133 event pairs, 28 based on Foata normal form. 960/3217 useless extension candidates. Maximal degree in co-relation 1936. Up to 79 conditions per place. [2025-01-09 21:40:33,343 INFO L140 encePairwiseOnDemand]: 573/684 looper letters, 13 selfloop transitions, 0 changer transitions 0/567 dead transitions. [2025-01-09 21:40:33,343 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 567 transitions, 1174 flow [2025-01-09 21:40:33,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:40:33,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:40:33,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1244 transitions. [2025-01-09 21:40:33,354 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9093567251461988 [2025-01-09 21:40:33,356 INFO L175 Difference]: Start difference. First operand has 581 places, 684 transitions, 1382 flow. Second operand 2 states and 1244 transitions. [2025-01-09 21:40:33,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 567 transitions, 1174 flow [2025-01-09 21:40:33,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 563 places, 567 transitions, 1174 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:40:33,419 INFO L231 Difference]: Finished difference. Result has 563 places, 567 transitions, 1148 flow [2025-01-09 21:40:33,421 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=684, PETRI_DIFFERENCE_MINUEND_FLOW=1148, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=567, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1148, PETRI_PLACES=563, PETRI_TRANSITIONS=567} [2025-01-09 21:40:33,424 INFO L279 CegarLoopForPetriNet]: 581 programPoint places, -18 predicate places. [2025-01-09 21:40:33,424 INFO L471 AbstractCegarLoop]: Abstraction has has 563 places, 567 transitions, 1148 flow [2025-01-09 21:40:33,424 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 560.5) internal successors, (1121), 2 states have internal predecessors, (1121), 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) [2025-01-09 21:40:33,424 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:40:33,425 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, 1, 1] [2025-01-09 21:40:33,425 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-01-09 21:40:33,425 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-01-09 21:40:33,425 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:40:33,425 INFO L85 PathProgramCache]: Analyzing trace with hash -611052330, now seen corresponding path program 1 times [2025-01-09 21:40:33,426 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:40:33,426 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356527786] [2025-01-09 21:40:33,426 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:40:33,426 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:40:33,436 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-09 21:40:33,458 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-09 21:40:33,458 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:40:33,458 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:40:34,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:40:34,216 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:40:34,216 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356527786] [2025-01-09 21:40:34,216 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356527786] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:40:34,216 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:40:34,216 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:40:34,216 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765355226] [2025-01-09 21:40:34,216 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:40:34,217 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:40:34,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:40:34,218 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:40:34,218 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:40:34,453 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 537 out of 684 [2025-01-09 21:40:34,457 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 563 places, 567 transitions, 1148 flow. Second operand has 6 states, 6 states have (on average 538.6666666666666) internal successors, (3232), 6 states have internal predecessors, (3232), 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) [2025-01-09 21:40:34,457 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:40:34,457 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 537 of 684 [2025-01-09 21:40:34,457 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:40:35,633 INFO L124 PetriNetUnfolderBase]: 674/6646 cut-off events. [2025-01-09 21:40:35,633 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2025-01-09 21:40:35,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7730 conditions, 6646 events. 674/6646 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 64408 event pairs, 520 based on Foata normal form. 0/6064 useless extension candidates. Maximal degree in co-relation 7725. Up to 1019 conditions per place. [2025-01-09 21:40:35,674 INFO L140 encePairwiseOnDemand]: 673/684 looper letters, 35 selfloop transitions, 22 changer transitions 0/588 dead transitions. [2025-01-09 21:40:35,674 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 568 places, 588 transitions, 1304 flow [2025-01-09 21:40:35,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-01-09 21:40:35,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-01-09 21:40:35,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3280 transitions. [2025-01-09 21:40:35,679 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7992202729044834 [2025-01-09 21:40:35,679 INFO L175 Difference]: Start difference. First operand has 563 places, 567 transitions, 1148 flow. Second operand 6 states and 3280 transitions. [2025-01-09 21:40:35,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 568 places, 588 transitions, 1304 flow [2025-01-09 21:40:35,682 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 568 places, 588 transitions, 1304 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:40:35,688 INFO L231 Difference]: Finished difference. Result has 573 places, 588 transitions, 1298 flow [2025-01-09 21:40:35,689 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=684, PETRI_DIFFERENCE_MINUEND_FLOW=1148, PETRI_DIFFERENCE_MINUEND_PLACES=563, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=567, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=557, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1298, PETRI_PLACES=573, PETRI_TRANSITIONS=588} [2025-01-09 21:40:35,689 INFO L279 CegarLoopForPetriNet]: 581 programPoint places, -8 predicate places. [2025-01-09 21:40:35,689 INFO L471 AbstractCegarLoop]: Abstraction has has 573 places, 588 transitions, 1298 flow [2025-01-09 21:40:35,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 538.6666666666666) internal successors, (3232), 6 states have internal predecessors, (3232), 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) [2025-01-09 21:40:35,691 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:40:35,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:40:35,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-01-09 21:40:35,691 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-01-09 21:40:35,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:40:35,692 INFO L85 PathProgramCache]: Analyzing trace with hash 168690401, now seen corresponding path program 1 times [2025-01-09 21:40:35,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:40:35,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072251522] [2025-01-09 21:40:35,692 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:40:35,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:40:35,705 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-01-09 21:40:35,712 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-01-09 21:40:35,712 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:40:35,712 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:40:35,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:40:35,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:40:35,757 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072251522] [2025-01-09 21:40:35,757 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2072251522] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:40:35,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:40:35,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-01-09 21:40:35,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138454346] [2025-01-09 21:40:35,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:40:35,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-01-09 21:40:35,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:40:35,758 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-01-09 21:40:35,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-01-09 21:40:35,779 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 554 out of 684 [2025-01-09 21:40:35,781 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 573 places, 588 transitions, 1298 flow. Second operand has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2025-01-09 21:40:35,781 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:40:35,781 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 554 of 684 [2025-01-09 21:40:35,781 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:40:36,322 INFO L124 PetriNetUnfolderBase]: 185/4424 cut-off events. [2025-01-09 21:40:36,323 INFO L125 PetriNetUnfolderBase]: For 205/302 co-relation queries the response was YES. [2025-01-09 21:40:36,344 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4874 conditions, 4424 events. 185/4424 cut-off events. For 205/302 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 35279 event pairs, 28 based on Foata normal form. 16/4157 useless extension candidates. Maximal degree in co-relation 4864. Up to 214 conditions per place. [2025-01-09 21:40:36,353 INFO L140 encePairwiseOnDemand]: 681/684 looper letters, 38 selfloop transitions, 2 changer transitions 0/593 dead transitions. [2025-01-09 21:40:36,354 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 575 places, 593 transitions, 1400 flow [2025-01-09 21:40:36,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-01-09 21:40:36,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-01-09 21:40:36,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1686 transitions. [2025-01-09 21:40:36,357 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8216374269005848 [2025-01-09 21:40:36,357 INFO L175 Difference]: Start difference. First operand has 573 places, 588 transitions, 1298 flow. Second operand 3 states and 1686 transitions. [2025-01-09 21:40:36,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 575 places, 593 transitions, 1400 flow [2025-01-09 21:40:36,361 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 575 places, 593 transitions, 1400 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:40:36,366 INFO L231 Difference]: Finished difference. Result has 576 places, 588 transitions, 1306 flow [2025-01-09 21:40:36,367 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=684, PETRI_DIFFERENCE_MINUEND_FLOW=1298, PETRI_DIFFERENCE_MINUEND_PLACES=573, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=588, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1306, PETRI_PLACES=576, PETRI_TRANSITIONS=588} [2025-01-09 21:40:36,367 INFO L279 CegarLoopForPetriNet]: 581 programPoint places, -5 predicate places. [2025-01-09 21:40:36,368 INFO L471 AbstractCegarLoop]: Abstraction has has 576 places, 588 transitions, 1306 flow [2025-01-09 21:40:36,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 555.6666666666666) internal successors, (1667), 3 states have internal predecessors, (1667), 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) [2025-01-09 21:40:36,369 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:40:36,369 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-01-09 21:40:36,369 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-01-09 21:40:36,369 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-01-09 21:40:36,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:40:36,370 INFO L85 PathProgramCache]: Analyzing trace with hash -497493162, now seen corresponding path program 1 times [2025-01-09 21:40:36,370 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:40:36,370 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693158139] [2025-01-09 21:40:36,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:40:36,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:40:36,384 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 21:40:36,394 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 21:40:36,395 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:40:36,395 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:40:36,395 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-01-09 21:40:36,399 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 69 statements into 1 equivalence classes. [2025-01-09 21:40:36,406 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 69 of 69 statements. [2025-01-09 21:40:36,406 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:40:36,406 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-01-09 21:40:36,426 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-01-09 21:40:36,427 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-01-09 21:40:36,427 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2025-01-09 21:40:36,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2025-01-09 21:40:36,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2025-01-09 21:40:36,428 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (38 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2025-01-09 21:40:36,429 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2025-01-09 21:40:36,430 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2025-01-09 21:40:36,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-01-09 21:40:36,431 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-01-09 21:40:36,433 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-01-09 21:40:36,433 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-01-09 21:40:36,553 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-01-09 21:40:36,577 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1013 places, 1194 transitions, 2420 flow [2025-01-09 21:40:37,754 INFO L124 PetriNetUnfolderBase]: 559/3344 cut-off events. [2025-01-09 21:40:37,754 INFO L125 PetriNetUnfolderBase]: For 40/52 co-relation queries the response was YES. [2025-01-09 21:40:37,840 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3401 conditions, 3344 events. 559/3344 cut-off events. For 40/52 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 20749 event pairs, 1 based on Foata normal form. 0/2627 useless extension candidates. Maximal degree in co-relation 2056. Up to 48 conditions per place. [2025-01-09 21:40:37,840 INFO L82 GeneralOperation]: Start removeDead. Operand has 1013 places, 1194 transitions, 2420 flow [2025-01-09 21:40:37,889 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1013 places, 1194 transitions, 2420 flow [2025-01-09 21:40:37,890 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-01-09 21:40:37,890 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;@74c9c8f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-01-09 21:40:37,890 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-01-09 21:40:37,892 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-01-09 21:40:37,892 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-01-09 21:40:37,892 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-01-09 21:40:37,892 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:40:37,892 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] [2025-01-09 21:40:37,892 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-01-09 21:40:37,892 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:40:37,892 INFO L85 PathProgramCache]: Analyzing trace with hash 461447834, now seen corresponding path program 1 times [2025-01-09 21:40:37,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:40:37,893 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863242619] [2025-01-09 21:40:37,893 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:40:37,893 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:40:37,900 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-01-09 21:40:37,902 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-01-09 21:40:37,902 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:40:37,903 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:40:37,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:40:37,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:40:37,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863242619] [2025-01-09 21:40:37,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863242619] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:40:37,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:40:37,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-01-09 21:40:37,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792159157] [2025-01-09 21:40:37,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:40:37,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-01-09 21:40:37,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:40:37,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-01-09 21:40:37,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-01-09 21:40:37,958 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 974 out of 1194 [2025-01-09 21:40:37,959 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1013 places, 1194 transitions, 2420 flow. Second operand has 2 states, 2 states have (on average 974.5) internal successors, (1949), 2 states have internal predecessors, (1949), 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) [2025-01-09 21:40:37,959 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:40:37,959 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 974 of 1194 [2025-01-09 21:40:37,960 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-01-09 21:41:04,036 INFO L124 PetriNetUnfolderBase]: 4608/81564 cut-off events. [2025-01-09 21:41:04,036 INFO L125 PetriNetUnfolderBase]: For 3742/3807 co-relation queries the response was YES. [2025-01-09 21:41:05,589 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88537 conditions, 81564 events. 4608/81564 cut-off events. For 3742/3807 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 1219599 event pairs, 3441 based on Foata normal form. 47385/121304 useless extension candidates. Maximal degree in co-relation 20314. Up to 5401 conditions per place. [2025-01-09 21:41:05,967 INFO L140 encePairwiseOnDemand]: 999/1194 looper letters, 25 selfloop transitions, 0 changer transitions 0/991 dead transitions. [2025-01-09 21:41:05,967 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 981 places, 991 transitions, 2064 flow [2025-01-09 21:41:05,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-01-09 21:41:05,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-01-09 21:41:05,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2168 transitions. [2025-01-09 21:41:05,971 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9078726968174204 [2025-01-09 21:41:05,971 INFO L175 Difference]: Start difference. First operand has 1013 places, 1194 transitions, 2420 flow. Second operand 2 states and 2168 transitions. [2025-01-09 21:41:05,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 981 places, 991 transitions, 2064 flow [2025-01-09 21:41:05,979 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 981 places, 991 transitions, 2064 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-01-09 21:41:05,987 INFO L231 Difference]: Finished difference. Result has 981 places, 991 transitions, 2014 flow [2025-01-09 21:41:05,988 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1194, PETRI_DIFFERENCE_MINUEND_FLOW=2014, PETRI_DIFFERENCE_MINUEND_PLACES=980, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=991, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=991, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2014, PETRI_PLACES=981, PETRI_TRANSITIONS=991} [2025-01-09 21:41:05,989 INFO L279 CegarLoopForPetriNet]: 1013 programPoint places, -32 predicate places. [2025-01-09 21:41:05,990 INFO L471 AbstractCegarLoop]: Abstraction has has 981 places, 991 transitions, 2014 flow [2025-01-09 21:41:05,991 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 974.5) internal successors, (1949), 2 states have internal predecessors, (1949), 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) [2025-01-09 21:41:05,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-01-09 21:41:05,991 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, 1, 1] [2025-01-09 21:41:05,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-01-09 21:41:05,991 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [readerErr0ASSERT_VIOLATIONDATA_RACE, readerErr2ASSERT_VIOLATIONDATA_RACE, readerErr3ASSERT_VIOLATIONDATA_RACE, readerErr1ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-01-09 21:41:05,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-01-09 21:41:05,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1056828767, now seen corresponding path program 1 times [2025-01-09 21:41:05,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-01-09 21:41:05,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1102883737] [2025-01-09 21:41:05,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-01-09 21:41:05,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-01-09 21:41:06,004 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-01-09 21:41:06,011 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-01-09 21:41:06,011 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-01-09 21:41:06,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-01-09 21:41:06,468 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-01-09 21:41:06,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-01-09 21:41:06,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1102883737] [2025-01-09 21:41:06,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1102883737] provided 1 perfect and 0 imperfect interpolant sequences [2025-01-09 21:41:06,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-01-09 21:41:06,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-01-09 21:41:06,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756429271] [2025-01-09 21:41:06,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-01-09 21:41:06,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-01-09 21:41:06,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-01-09 21:41:06,470 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-01-09 21:41:06,470 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-01-09 21:41:06,640 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 951 out of 1194 [2025-01-09 21:41:06,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 981 places, 991 transitions, 2014 flow. Second operand has 6 states, 6 states have (on average 952.6666666666666) internal successors, (5716), 6 states have internal predecessors, (5716), 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) [2025-01-09 21:41:06,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-01-09 21:41:06,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 951 of 1194 [2025-01-09 21:41:06,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand