./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 c00e63dc 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-?-c00e63d-m [2025-02-06 09:38:38,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-02-06 09:38:38,632 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-02-06 09:38:38,635 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-02-06 09:38:38,635 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-02-06 09:38:38,649 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-02-06 09:38:38,650 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-02-06 09:38:38,650 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-02-06 09:38:38,650 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-02-06 09:38:38,650 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-02-06 09:38:38,650 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-02-06 09:38:38,650 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-02-06 09:38:38,650 INFO L153 SettingsManager]: * Use SBE=true [2025-02-06 09:38:38,651 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * sizeof long=4 [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * sizeof long double=12 [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Use constant arrays=true [2025-02-06 09:38:38,651 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:38:38,651 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-02-06 09:38:38,651 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-02-06 09:38:38,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-02-06 09:38:38,652 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-02-06 09:38:38,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-02-06 09:38:38,652 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-02-06 09:38:38,652 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-02-06 09:38:38,652 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-02-06 09:38:38,652 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-02-06 09:38:38,652 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 [2025-02-06 09:38:38,822 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-02-06 09:38:38,827 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-02-06 09:38:38,828 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-02-06 09:38:38,829 INFO L270 PluginConnector]: Initializing CDTParser... [2025-02-06 09:38:38,829 INFO L274 PluginConnector]: CDTParser initialized [2025-02-06 09:38:38,830 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/semaphore.i [2025-02-06 09:38:39,909 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/428f820c0/50cdbd02c1d9430d8f8062864b11532e/FLAG53ca066a7 [2025-02-06 09:38:40,376 INFO L384 CDTParser]: Found 1 translation units. [2025-02-06 09:38:40,376 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/libvsync/semaphore.i [2025-02-06 09:38:40,417 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/428f820c0/50cdbd02c1d9430d8f8062864b11532e/FLAG53ca066a7 [2025-02-06 09:38:40,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/428f820c0/50cdbd02c1d9430d8f8062864b11532e [2025-02-06 09:38:40,432 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-02-06 09:38:40,434 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-02-06 09:38:40,435 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-02-06 09:38:40,435 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-02-06 09:38:40,438 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-02-06 09:38:40,439 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:38:40" (1/1) ... [2025-02-06 09:38:40,440 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2178870a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:40, skipping insertion in model container [2025-02-06 09:38:40,440 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.02 09:38:40" (1/1) ... [2025-02-06 09:38:40,511 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-02-06 09:38:41,901 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:38:41,913 INFO L200 MainTranslator]: Completed pre-run [2025-02-06 09:38:42,025 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-02-06 09:38:42,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-02-06 09:38:42,027 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-02-06 09:38:42,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-02-06 09:38:42,028 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-02-06 09:38:42,029 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-02-06 09:38:42,029 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-02-06 09:38:42,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-02-06 09:38:42,030 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-02-06 09:38:42,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-02-06 09:38:42,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-02-06 09:38:42,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-02-06 09:38:42,031 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-02-06 09:38:42,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-02-06 09:38:42,032 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-02-06 09:38:42,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-02-06 09:38:42,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-02-06 09:38:42,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-02-06 09:38:42,033 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-02-06 09:38:42,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-02-06 09:38:42,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-02-06 09:38:42,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-02-06 09:38:42,034 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-02-06 09:38:42,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-02-06 09:38:42,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-02-06 09:38:42,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-02-06 09:38:42,035 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-02-06 09:38:42,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-02-06 09:38:42,036 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-02-06 09:38:42,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-02-06 09:38:42,037 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-02-06 09:38:42,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-02-06 09:38:42,038 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-02-06 09:38:42,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-02-06 09:38:42,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-02-06 09:38:42,039 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-02-06 09:38:42,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-02-06 09:38:42,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-02-06 09:38:42,040 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-02-06 09:38:42,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-02-06 09:38:42,041 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-02-06 09:38:42,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-02-06 09:38:42,042 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-02-06 09:38:42,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-02-06 09:38:42,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-02-06 09:38:42,043 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-02-06 09:38:42,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-02-06 09:38:42,044 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-02-06 09:38:42,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-02-06 09:38:42,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-02-06 09:38:42,045 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-02-06 09:38:42,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-02-06 09:38:42,046 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-02-06 09:38:42,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-02-06 09:38:42,047 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-02-06 09:38:42,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-02-06 09:38:42,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-02-06 09:38:42,048 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-02-06 09:38:42,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-02-06 09:38:42,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-02-06 09:38:42,049 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-02-06 09:38:42,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-02-06 09:38:42,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-02-06 09:38:42,050 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-02-06 09:38:42,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-02-06 09:38:42,051 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-02-06 09:38:42,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-02-06 09:38:42,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-02-06 09:38:42,052 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-02-06 09:38:42,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-02-06 09:38:42,053 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-02-06 09:38:42,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-02-06 09:38:42,054 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-02-06 09:38:42,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-02-06 09:38:42,055 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-02-06 09:38:42,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-02-06 09:38:42,056 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-02-06 09:38:42,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-02-06 09:38:42,057 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-02-06 09:38:42,058 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-02-06 09:38:42,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-02-06 09:38:42,059 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-02-06 09:38:42,060 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-02-06 09:38:42,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-02-06 09:38:42,061 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-02-06 09:38:42,062 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-02-06 09:38:42,064 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-02-06 09:38:42,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-02-06 09:38:42,065 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-02-06 09:38:42,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-02-06 09:38:42,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-02-06 09:38:42,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-02-06 09:38:42,066 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-02-06 09:38:42,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-02-06 09:38:42,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-02-06 09:38:42,067 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-02-06 09:38:42,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-02-06 09:38:42,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-02-06 09:38:42,068 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-02-06 09:38:42,072 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-02-06 09:38:42,132 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-02-06 09:38:42,328 INFO L204 MainTranslator]: Completed translation [2025-02-06 09:38:42,329 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42 WrapperNode [2025-02-06 09:38:42,329 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-02-06 09:38:42,330 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-02-06 09:38:42,330 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-02-06 09:38:42,330 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-02-06 09:38:42,335 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,397 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,430 INFO L138 Inliner]: procedures = 921, calls = 921, calls flagged for inlining = 820, calls inlined = 50, statements flattened = 585 [2025-02-06 09:38:42,430 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-02-06 09:38:42,431 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-02-06 09:38:42,431 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-02-06 09:38:42,431 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-02-06 09:38:42,444 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,444 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,452 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,452 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,473 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,475 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,481 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,483 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,489 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-02-06 09:38:42,494 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-02-06 09:38:42,494 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-02-06 09:38:42,494 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-02-06 09:38:42,494 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (1/1) ... [2025-02-06 09:38:42,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-02-06 09:38:42,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2025-02-06 09:38:42,531 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-02-06 09:38:42,540 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-02-06 09:38:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-02-06 09:38:42,556 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-02-06 09:38:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-02-06 09:38:42,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-02-06 09:38:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-02-06 09:38:42,557 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-02-06 09:38:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-02-06 09:38:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-02-06 09:38:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-02-06 09:38:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-02-06 09:38:42,557 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-02-06 09:38:42,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-02-06 09:38:42,558 WARN L227 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-02-06 09:38:42,691 INFO L257 CfgBuilder]: Building ICFG [2025-02-06 09:38:42,693 INFO L287 CfgBuilder]: Building CFG for each procedure with an implementation [2025-02-06 09:38:43,021 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-02-06 09:38:43,159 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6007: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-02-06 09:38:43,159 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L6007-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-02-06 09:38:43,299 INFO L1309 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-02-06 09:38:43,300 INFO L304 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-02-06 09:38:43,300 INFO L308 CfgBuilder]: Performing block encoding [2025-02-06 09:38:43,429 INFO L332 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-02-06 09:38:43,429 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-02-06 09:38:43,430 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:38:43 BoogieIcfgContainer [2025-02-06 09:38:43,430 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-02-06 09:38:43,431 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-02-06 09:38:43,431 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-02-06 09:38:43,435 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-02-06 09:38:43,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.02 09:38:40" (1/3) ... [2025-02-06 09:38:43,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:38:43, skipping insertion in model container [2025-02-06 09:38:43,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.02 09:38:42" (2/3) ... [2025-02-06 09:38:43,435 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bf5f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.02 09:38:43, skipping insertion in model container [2025-02-06 09:38:43,435 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 06.02 09:38:43" (3/3) ... [2025-02-06 09:38:43,436 INFO L128 eAbstractionObserver]: Analyzing ICFG semaphore.i [2025-02-06 09:38:43,446 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-02-06 09:38:43,447 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG semaphore.i that has 3 procedures, 591 locations, 1 initial locations, 53 loop locations, and 25 error locations. [2025-02-06 09:38:43,447 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-02-06 09:38:43,572 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-02-06 09:38:43,600 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 597 places, 700 transitions, 1414 flow [2025-02-06 09:38:43,874 INFO L124 PetriNetUnfolderBase]: 200/1244 cut-off events. [2025-02-06 09:38:43,876 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-02-06 09:38:43,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1257 conditions, 1244 events. 200/1244 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 5445 event pairs, 0 based on Foata normal form. 0/988 useless extension candidates. Maximal degree in co-relation 730. Up to 12 conditions per place. [2025-02-06 09:38:43,919 INFO L82 GeneralOperation]: Start removeDead. Operand has 597 places, 700 transitions, 1414 flow [2025-02-06 09:38:43,940 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 597 places, 700 transitions, 1414 flow [2025-02-06 09:38:43,945 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:38:43,952 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;@70297e2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:38:43,952 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2025-02-06 09:38:43,957 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:38:43,957 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-02-06 09:38:43,957 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:38:43,957 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:38:43,957 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] [2025-02-06 09:38:43,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE, readerErr4ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-02-06 09:38:43,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:38:43,961 INFO L85 PathProgramCache]: Analyzing trace with hash -591231949, now seen corresponding path program 1 times [2025-02-06 09:38:43,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:38:43,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069544171] [2025-02-06 09:38:43,967 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:38:43,967 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:38:44,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 09:38:44,040 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 09:38:44,040 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:38:44,040 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:38:44,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:38:44,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:38:44,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069544171] [2025-02-06 09:38:44,386 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2069544171] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:38:44,386 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:38:44,387 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:38:44,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1284346582] [2025-02-06 09:38:44,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:38:44,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:38:44,396 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:38:44,412 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:38:44,412 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:38:44,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 576 out of 700 [2025-02-06 09:38:44,423 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 597 places, 700 transitions, 1414 flow. Second operand has 2 states, 2 states have (on average 576.5) internal successors, (1153), 2 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:38:44,424 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:38:44,424 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 576 of 700 [2025-02-06 09:38:44,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:38:45,007 INFO L124 PetriNetUnfolderBase]: 62/2503 cut-off events. [2025-02-06 09:38:45,007 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-02-06 09:38:45,034 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2613 conditions, 2503 events. 62/2503 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 14557 event pairs, 28 based on Foata normal form. 1083/3399 useless extension candidates. Maximal degree in co-relation 1984. Up to 79 conditions per place. [2025-02-06 09:38:45,052 INFO L140 encePairwiseOnDemand]: 589/700 looper letters, 13 selfloop transitions, 0 changer transitions 0/583 dead transitions. [2025-02-06 09:38:45,052 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 579 places, 583 transitions, 1206 flow [2025-02-06 09:38:45,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:38:45,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:38:45,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1276 transitions. [2025-02-06 09:38:45,064 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9114285714285715 [2025-02-06 09:38:45,065 INFO L175 Difference]: Start difference. First operand has 597 places, 700 transitions, 1414 flow. Second operand 2 states and 1276 transitions. [2025-02-06 09:38:45,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 579 places, 583 transitions, 1206 flow [2025-02-06 09:38:45,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 579 places, 583 transitions, 1206 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:38:45,153 INFO L231 Difference]: Finished difference. Result has 579 places, 583 transitions, 1180 flow [2025-02-06 09:38:45,156 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=700, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=578, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=583, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1180, PETRI_PLACES=579, PETRI_TRANSITIONS=583} [2025-02-06 09:38:45,158 INFO L279 CegarLoopForPetriNet]: 597 programPoint places, -18 predicate places. [2025-02-06 09:38:45,158 INFO L471 AbstractCegarLoop]: Abstraction has has 579 places, 583 transitions, 1180 flow [2025-02-06 09:38:45,159 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 576.5) internal successors, (1153), 2 states have internal predecessors, (1153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:38:45,159 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:38:45,159 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] [2025-02-06 09:38:45,159 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-02-06 09:38:45,159 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE, readerErr4ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-02-06 09:38:45,160 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:38:45,160 INFO L85 PathProgramCache]: Analyzing trace with hash -168141539, now seen corresponding path program 1 times [2025-02-06 09:38:45,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:38:45,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876204175] [2025-02-06 09:38:45,160 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:38:45,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:38:45,178 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 09:38:45,197 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 09:38:45,198 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:38:45,198 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:38:45,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:38:45,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:38:45,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876204175] [2025-02-06 09:38:45,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876204175] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:38:45,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:38:45,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:38:45,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769499172] [2025-02-06 09:38:45,859 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:38:45,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:38:45,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:38:45,860 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:38:45,860 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:38:46,047 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 553 out of 700 [2025-02-06 09:38:46,050 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 579 places, 583 transitions, 1180 flow. Second operand has 6 states, 6 states have (on average 554.6666666666666) internal successors, (3328), 6 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:38:46,050 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:38:46,050 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 553 of 700 [2025-02-06 09:38:46,050 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:38:47,177 INFO L124 PetriNetUnfolderBase]: 674/6815 cut-off events. [2025-02-06 09:38:47,177 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2025-02-06 09:38:47,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7899 conditions, 6815 events. 674/6815 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 66217 event pairs, 520 based on Foata normal form. 0/6240 useless extension candidates. Maximal degree in co-relation 7894. Up to 1019 conditions per place. [2025-02-06 09:38:47,236 INFO L140 encePairwiseOnDemand]: 689/700 looper letters, 35 selfloop transitions, 22 changer transitions 0/604 dead transitions. [2025-02-06 09:38:47,236 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 584 places, 604 transitions, 1336 flow [2025-02-06 09:38:47,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-02-06 09:38:47,236 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-02-06 09:38:47,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3376 transitions. [2025-02-06 09:38:47,248 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8038095238095239 [2025-02-06 09:38:47,248 INFO L175 Difference]: Start difference. First operand has 579 places, 583 transitions, 1180 flow. Second operand 6 states and 3376 transitions. [2025-02-06 09:38:47,248 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 584 places, 604 transitions, 1336 flow [2025-02-06 09:38:47,254 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 584 places, 604 transitions, 1336 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:38:47,260 INFO L231 Difference]: Finished difference. Result has 589 places, 604 transitions, 1330 flow [2025-02-06 09:38:47,262 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=700, PETRI_DIFFERENCE_MINUEND_FLOW=1180, PETRI_DIFFERENCE_MINUEND_PLACES=579, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=583, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=573, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1330, PETRI_PLACES=589, PETRI_TRANSITIONS=604} [2025-02-06 09:38:47,263 INFO L279 CegarLoopForPetriNet]: 597 programPoint places, -8 predicate places. [2025-02-06 09:38:47,263 INFO L471 AbstractCegarLoop]: Abstraction has has 589 places, 604 transitions, 1330 flow [2025-02-06 09:38:47,264 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 554.6666666666666) internal successors, (3328), 6 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:38:47,264 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:38:47,265 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, 1, 1] [2025-02-06 09:38:47,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-02-06 09:38:47,265 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE, readerErr4ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-02-06 09:38:47,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:38:47,268 INFO L85 PathProgramCache]: Analyzing trace with hash -562216140, now seen corresponding path program 1 times [2025-02-06 09:38:47,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:38:47,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464919585] [2025-02-06 09:38:47,269 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:38:47,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:38:47,286 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 66 statements into 1 equivalence classes. [2025-02-06 09:38:47,293 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 66 of 66 statements. [2025-02-06 09:38:47,297 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:38:47,298 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:38:47,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:38:47,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:38:47,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464919585] [2025-02-06 09:38:47,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464919585] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:38:47,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:38:47,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-02-06 09:38:47,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326439569] [2025-02-06 09:38:47,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:38:47,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-02-06 09:38:47,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:38:47,343 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-02-06 09:38:47,343 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-02-06 09:38:47,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 570 out of 700 [2025-02-06 09:38:47,369 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 589 places, 604 transitions, 1330 flow. Second operand has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 3 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:38:47,369 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:38:47,369 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 570 of 700 [2025-02-06 09:38:47,369 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:38:47,912 INFO L124 PetriNetUnfolderBase]: 191/4547 cut-off events. [2025-02-06 09:38:47,913 INFO L125 PetriNetUnfolderBase]: For 205/302 co-relation queries the response was YES. [2025-02-06 09:38:47,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5003 conditions, 4547 events. 191/4547 cut-off events. For 205/302 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 36157 event pairs, 28 based on Foata normal form. 16/4280 useless extension candidates. Maximal degree in co-relation 4993. Up to 214 conditions per place. [2025-02-06 09:38:47,958 INFO L140 encePairwiseOnDemand]: 697/700 looper letters, 38 selfloop transitions, 2 changer transitions 0/609 dead transitions. [2025-02-06 09:38:47,959 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 591 places, 609 transitions, 1432 flow [2025-02-06 09:38:47,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-02-06 09:38:47,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-02-06 09:38:47,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1734 transitions. [2025-02-06 09:38:47,962 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8257142857142857 [2025-02-06 09:38:47,962 INFO L175 Difference]: Start difference. First operand has 589 places, 604 transitions, 1330 flow. Second operand 3 states and 1734 transitions. [2025-02-06 09:38:47,962 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 591 places, 609 transitions, 1432 flow [2025-02-06 09:38:47,966 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 591 places, 609 transitions, 1432 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:38:47,970 INFO L231 Difference]: Finished difference. Result has 592 places, 604 transitions, 1338 flow [2025-02-06 09:38:47,971 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=700, PETRI_DIFFERENCE_MINUEND_FLOW=1330, PETRI_DIFFERENCE_MINUEND_PLACES=589, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=604, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=602, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1338, PETRI_PLACES=592, PETRI_TRANSITIONS=604} [2025-02-06 09:38:47,971 INFO L279 CegarLoopForPetriNet]: 597 programPoint places, -5 predicate places. [2025-02-06 09:38:47,971 INFO L471 AbstractCegarLoop]: Abstraction has has 592 places, 604 transitions, 1338 flow [2025-02-06 09:38:47,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 571.6666666666666) internal successors, (1715), 3 states have internal predecessors, (1715), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:38:47,972 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:38:47,972 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, 1] [2025-02-06 09:38:47,973 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-02-06 09:38:47,973 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE, readerErr4ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-02-06 09:38:47,973 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:38:47,973 INFO L85 PathProgramCache]: Analyzing trace with hash -585957631, now seen corresponding path program 1 times [2025-02-06 09:38:47,973 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:38:47,973 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [331599938] [2025-02-06 09:38:47,974 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:38:47,974 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:38:47,986 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 09:38:47,996 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 09:38:47,997 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:38:47,997 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:38:47,997 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-02-06 09:38:48,028 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 70 statements into 1 equivalence classes. [2025-02-06 09:38:48,036 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 70 of 70 statements. [2025-02-06 09:38:48,036 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:38:48,036 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-02-06 09:38:48,059 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-02-06 09:38:48,059 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-02-06 09:38:48,060 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2025-02-06 09:38:48,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2025-02-06 09:38:48,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2025-02-06 09:38:48,062 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (38 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2025-02-06 09:38:48,063 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2025-02-06 09:38:48,064 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2025-02-06 09:38:48,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-02-06 09:38:48,065 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-02-06 09:38:48,067 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-02-06 09:38:48,067 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-02-06 09:38:48,209 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-02-06 09:38:48,222 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1042 places, 1223 transitions, 2478 flow [2025-02-06 09:38:49,182 INFO L124 PetriNetUnfolderBase]: 559/3411 cut-off events. [2025-02-06 09:38:49,183 INFO L125 PetriNetUnfolderBase]: For 40/52 co-relation queries the response was YES. [2025-02-06 09:38:49,288 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3468 conditions, 3411 events. 559/3411 cut-off events. For 40/52 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 21481 event pairs, 1 based on Foata normal form. 0/2694 useless extension candidates. Maximal degree in co-relation 2099. Up to 48 conditions per place. [2025-02-06 09:38:49,288 INFO L82 GeneralOperation]: Start removeDead. Operand has 1042 places, 1223 transitions, 2478 flow [2025-02-06 09:38:49,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1042 places, 1223 transitions, 2478 flow [2025-02-06 09:38:49,348 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-02-06 09:38:49,349 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;@70297e2e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-02-06 09:38:49,349 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-02-06 09:38:49,350 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-02-06 09:38:49,350 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-02-06 09:38:49,351 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-02-06 09:38:49,351 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:38:49,351 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] [2025-02-06 09:38:49,351 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE === [readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE, readerErr4ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-02-06 09:38:49,351 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:38:49,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1841777971, now seen corresponding path program 1 times [2025-02-06 09:38:49,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:38:49,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452551816] [2025-02-06 09:38:49,351 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:38:49,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:38:49,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-02-06 09:38:49,363 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-02-06 09:38:49,363 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:38:49,363 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:38:49,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:38:49,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:38:49,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452551816] [2025-02-06 09:38:49,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452551816] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:38:49,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:38:49,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-02-06 09:38:49,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90994125] [2025-02-06 09:38:49,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:38:49,431 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-02-06 09:38:49,431 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:38:49,432 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-02-06 09:38:49,432 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-02-06 09:38:49,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1003 out of 1223 [2025-02-06 09:38:49,435 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1042 places, 1223 transitions, 2478 flow. Second operand has 2 states, 2 states have (on average 1003.5) internal successors, (2007), 2 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:38:49,435 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:38:49,435 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1003 of 1223 [2025-02-06 09:38:49,436 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-02-06 09:39:17,598 INFO L124 PetriNetUnfolderBase]: 4608/83108 cut-off events. [2025-02-06 09:39:17,599 INFO L125 PetriNetUnfolderBase]: For 3741/3805 co-relation queries the response was YES. [2025-02-06 09:39:20,537 INFO L83 FinitePrefix]: Finished finitePrefix Result has 90081 conditions, 83108 events. 4608/83108 cut-off events. For 3741/3805 co-relation queries the response was YES. Maximal size of possible extension queue 573. Compared 1242576 event pairs, 3441 based on Foata normal form. 54292/129724 useless extension candidates. Maximal degree in co-relation 20567. Up to 5401 conditions per place. [2025-02-06 09:39:21,180 INFO L140 encePairwiseOnDemand]: 1028/1223 looper letters, 25 selfloop transitions, 0 changer transitions 0/1020 dead transitions. [2025-02-06 09:39:21,180 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1010 places, 1020 transitions, 2122 flow [2025-02-06 09:39:21,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-02-06 09:39:21,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-02-06 09:39:21,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2226 transitions. [2025-02-06 09:39:21,184 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9100572363041701 [2025-02-06 09:39:21,184 INFO L175 Difference]: Start difference. First operand has 1042 places, 1223 transitions, 2478 flow. Second operand 2 states and 2226 transitions. [2025-02-06 09:39:21,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1010 places, 1020 transitions, 2122 flow [2025-02-06 09:39:21,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1010 places, 1020 transitions, 2122 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-02-06 09:39:21,195 INFO L231 Difference]: Finished difference. Result has 1010 places, 1020 transitions, 2072 flow [2025-02-06 09:39:21,196 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1223, PETRI_DIFFERENCE_MINUEND_FLOW=2072, PETRI_DIFFERENCE_MINUEND_PLACES=1009, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1020, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1020, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2072, PETRI_PLACES=1010, PETRI_TRANSITIONS=1020} [2025-02-06 09:39:21,197 INFO L279 CegarLoopForPetriNet]: 1042 programPoint places, -32 predicate places. [2025-02-06 09:39:21,197 INFO L471 AbstractCegarLoop]: Abstraction has has 1010 places, 1020 transitions, 2072 flow [2025-02-06 09:39:21,198 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1003.5) internal successors, (2007), 2 states have internal predecessors, (2007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:39:21,198 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-02-06 09:39:21,198 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] [2025-02-06 09:39:21,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-02-06 09:39:21,198 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [readerErr7ASSERT_VIOLATIONDATA_RACE, readerErr5ASSERT_VIOLATIONDATA_RACE, readerErr4ASSERT_VIOLATIONDATA_RACE, readerErr6ASSERT_VIOLATIONDATA_RACE (and 59 more)] === [2025-02-06 09:39:21,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-02-06 09:39:21,199 INFO L85 PathProgramCache]: Analyzing trace with hash -719458147, now seen corresponding path program 1 times [2025-02-06 09:39:21,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-02-06 09:39:21,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1039118749] [2025-02-06 09:39:21,199 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-02-06 09:39:21,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-02-06 09:39:21,208 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 52 statements into 1 equivalence classes. [2025-02-06 09:39:21,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 52 of 52 statements. [2025-02-06 09:39:21,213 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-02-06 09:39:21,213 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-02-06 09:39:21,606 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-02-06 09:39:21,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-02-06 09:39:21,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1039118749] [2025-02-06 09:39:21,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1039118749] provided 1 perfect and 0 imperfect interpolant sequences [2025-02-06 09:39:21,606 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-02-06 09:39:21,606 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-02-06 09:39:21,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127204016] [2025-02-06 09:39:21,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-02-06 09:39:21,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-02-06 09:39:21,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-02-06 09:39:21,608 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-02-06 09:39:21,608 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-02-06 09:39:21,777 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 980 out of 1223 [2025-02-06 09:39:21,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1010 places, 1020 transitions, 2072 flow. Second operand has 6 states, 6 states have (on average 981.6666666666666) internal successors, (5890), 6 states have internal predecessors, (5890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-02-06 09:39:21,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-02-06 09:39:21,783 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 980 of 1223 [2025-02-06 09:39:21,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand