./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 e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/semaphore.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-08 22:13:49,184 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-08 22:13:49,230 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-08 22:13:49,237 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-08 22:13:49,237 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-08 22:13:49,249 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-08 22:13:49,250 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-08 22:13:49,250 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-08 22:13:49,250 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-08 22:13:49,250 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-08 22:13:49,250 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-08 22:13:49,250 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Use SBE=true [2025-03-08 22:13:49,251 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-08 22:13:49,251 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-08 22:13:49,251 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:13:49,252 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-08 22:13:49,252 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c654263c1c366ef9cc67f02592c2d3fd912134a9cb5af429926a9f4627826820 [2025-03-08 22:13:49,470 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-08 22:13:49,478 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-08 22:13:49,480 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-08 22:13:49,481 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-08 22:13:49,482 INFO L274 PluginConnector]: CDTParser initialized [2025-03-08 22:13:49,483 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/semaphore.i [2025-03-08 22:13:50,621 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1ebfba6/251caf6b80b8492dbee7ed3916799b7b/FLAGd568572a2 [2025-03-08 22:13:51,028 INFO L384 CDTParser]: Found 1 translation units. [2025-03-08 22:13:51,028 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/semaphore.i [2025-03-08 22:13:51,063 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1ebfba6/251caf6b80b8492dbee7ed3916799b7b/FLAGd568572a2 [2025-03-08 22:13:51,073 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7d1ebfba6/251caf6b80b8492dbee7ed3916799b7b [2025-03-08 22:13:51,076 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-08 22:13:51,077 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-08 22:13:51,078 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-08 22:13:51,078 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-08 22:13:51,081 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-08 22:13:51,082 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:13:51" (1/1) ... [2025-03-08 22:13:51,082 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ffbc90a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:51, skipping insertion in model container [2025-03-08 22:13:51,082 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.03 10:13:51" (1/1) ... [2025-03-08 22:13:51,149 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-08 22:13:52,522 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:13:52,533 INFO L200 MainTranslator]: Completed pre-run [2025-03-08 22:13:52,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-08 22:13:52,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-08 22:13:52,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-08 22:13:52,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-08 22:13:52,638 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-08 22:13:52,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-08 22:13:52,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-08 22:13:52,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-08 22:13:52,639 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-08 22:13:52,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-08 22:13:52,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-08 22:13:52,640 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-08 22:13:52,643 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-08 22:13:52,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-08 22:13:52,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-08 22:13:52,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-08 22:13:52,644 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-08 22:13:52,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-08 22:13:52,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-08 22:13:52,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-08 22:13:52,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-08 22:13:52,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-08 22:13:52,645 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-08 22:13:52,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-08 22:13:52,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-08 22:13:52,646 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-08 22:13:52,653 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-08 22:13:52,654 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-08 22:13:52,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-08 22:13:52,656 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-08 22:13:52,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-08 22:13:52,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-08 22:13:52,657 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-08 22:13:52,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-08 22:13:52,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-08 22:13:52,658 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-08 22:13:52,659 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-08 22:13:52,660 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-08 22:13:52,661 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-08 22:13:52,661 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-08 22:13:52,661 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-08 22:13:52,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-08 22:13:52,662 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-08 22:13:52,664 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-08 22:13:52,664 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-08 22:13:52,664 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-08 22:13:52,665 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-08 22:13:52,666 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-08 22:13:52,666 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-08 22:13:52,667 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-08 22:13:52,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-08 22:13:52,668 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-08 22:13:52,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-08 22:13:52,669 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-08 22:13:52,670 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-08 22:13:52,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-08 22:13:52,671 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-08 22:13:52,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-08 22:13:52,672 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-08 22:13:52,673 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-08 22:13:52,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-08 22:13:52,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-08 22:13:52,674 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-08 22:13:52,675 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-08 22:13:52,676 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-08 22:13:52,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-08 22:13:52,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-08 22:13:52,677 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-08 22:13:52,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-08 22:13:52,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-08 22:13:52,678 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-08 22:13:52,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-08 22:13:52,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-08 22:13:52,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-08 22:13:52,679 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-08 22:13:52,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-08 22:13:52,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-08 22:13:52,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-08 22:13:52,680 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-08 22:13:52,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-08 22:13:52,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-08 22:13:52,681 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-08 22:13:52,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-08 22:13:52,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-08 22:13:52,682 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-08 22:13:52,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-08 22:13:52,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-08 22:13:52,683 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-08 22:13:52,684 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-08 22:13:52,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-08 22:13:52,685 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-08 22:13:52,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-08 22:13:52,686 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-08 22:13:52,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-08 22:13:52,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-08 22:13:52,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-08 22:13:52,687 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-08 22:13:52,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-08 22:13:52,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-08 22:13:52,688 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-08 22:13:52,742 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-08 22:13:52,934 INFO L204 MainTranslator]: Completed translation [2025-03-08 22:13:52,934 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52 WrapperNode [2025-03-08 22:13:52,935 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-08 22:13:52,935 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-08 22:13:52,935 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-08 22:13:52,936 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-08 22:13:52,940 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,064 INFO L138 Inliner]: procedures = 921, calls = 921, calls flagged for inlining = 820, calls inlined = 50, statements flattened = 585 [2025-03-08 22:13:53,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-08 22:13:53,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-08 22:13:53,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-08 22:13:53,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-08 22:13:53,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,078 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,079 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,101 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,107 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,111 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,114 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,118 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-08 22:13:53,118 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-08 22:13:53,119 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-08 22:13:53,119 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-08 22:13:53,119 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (1/1) ... [2025-03-08 22:13:53,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-08 22:13:53,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-08 22:13:53,150 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-08 22:13:53,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-08 22:13:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-03-08 22:13:53,171 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-03-08 22:13:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-08 22:13:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-08 22:13:53,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-08 22:13:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-08 22:13:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-08 22:13:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-08 22:13:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-08 22:13:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-03-08 22:13:53,172 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-03-08 22:13:53,172 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-08 22:13:53,173 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-08 22:13:53,313 INFO L256 CfgBuilder]: Building ICFG [2025-03-08 22:13:53,315 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-08 22:13:53,598 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-03-08 22:13:53,774 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6007: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-08 22:13:53,775 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6007-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-08 22:13:53,938 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-03-08 22:13:53,939 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-08 22:13:53,939 INFO L307 CfgBuilder]: Performing block encoding [2025-03-08 22:13:54,051 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-08 22:13:54,052 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-08 22:13:54,052 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:13:54 BoogieIcfgContainer [2025-03-08 22:13:54,054 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-08 22:13:54,056 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-08 22:13:54,056 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-08 22:13:54,059 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-08 22:13:54,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.03 10:13:51" (1/3) ... [2025-03-08 22:13:54,060 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15782f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:13:54, skipping insertion in model container [2025-03-08 22:13:54,060 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.03 10:13:52" (2/3) ... [2025-03-08 22:13:54,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15782f15 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.03 10:13:54, skipping insertion in model container [2025-03-08 22:13:54,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 08.03 10:13:54" (3/3) ... [2025-03-08 22:13:54,062 INFO L128 eAbstractionObserver]: Analyzing ICFG semaphore.i [2025-03-08 22:13:54,073 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-08 22:13:54,074 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG semaphore.i that has 3 procedures, 549 locations, 1 initial locations, 27 loop locations, and 25 error locations. [2025-03-08 22:13:54,074 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-08 22:13:54,233 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-08 22:13:54,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 555 places, 658 transitions, 1330 flow [2025-03-08 22:13:54,579 INFO L124 PetriNetUnfolderBase]: 200/1173 cut-off events. [2025-03-08 22:13:54,582 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-08 22:13:54,618 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1186 conditions, 1173 events. 200/1173 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 4885 event pairs, 0 based on Foata normal form. 0/917 useless extension candidates. Maximal degree in co-relation 688. Up to 16 conditions per place. [2025-03-08 22:13:54,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 555 places, 658 transitions, 1330 flow [2025-03-08 22:13:54,646 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 555 places, 658 transitions, 1330 flow [2025-03-08 22:13:54,655 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:13:54,666 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;@43ddfd0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:13:54,666 INFO L334 AbstractCegarLoop]: Starting to check reachability of 45 error locations. [2025-03-08 22:13:54,671 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:13:54,672 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-03-08 22:13:54,672 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:13:54,672 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:13:54,672 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] [2025-03-08 22:13:54,672 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)] === [2025-03-08 22:13:54,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:13:54,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1668674726, now seen corresponding path program 1 times [2025-03-08 22:13:54,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:13:54,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236906603] [2025-03-08 22:13:54,684 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:13:54,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:13:54,749 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 22:13:54,776 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 22:13:54,777 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:13:54,778 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:13:55,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:13:55,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:13:55,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236906603] [2025-03-08 22:13:55,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236906603] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:13:55,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:13:55,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-08 22:13:55,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845882549] [2025-03-08 22:13:55,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:13:55,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:13:55,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:13:55,085 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:13:55,086 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:13:55,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 534 out of 658 [2025-03-08 22:13:55,096 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 555 places, 658 transitions, 1330 flow. Second operand has 2 states, 2 states have (on average 534.5) internal successors, (1069), 2 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:13:55,097 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:13:55,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 534 of 658 [2025-03-08 22:13:55,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:13:55,633 INFO L124 PetriNetUnfolderBase]: 62/2352 cut-off events. [2025-03-08 22:13:55,633 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2025-03-08 22:13:55,668 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2462 conditions, 2352 events. 62/2352 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 13602 event pairs, 28 based on Foata normal form. 741/2906 useless extension candidates. Maximal degree in co-relation 1862. Up to 79 conditions per place. [2025-03-08 22:13:55,683 INFO L140 encePairwiseOnDemand]: 547/658 looper letters, 13 selfloop transitions, 0 changer transitions 0/541 dead transitions. [2025-03-08 22:13:55,684 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 537 places, 541 transitions, 1122 flow [2025-03-08 22:13:55,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:13:55,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-08 22:13:55,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1192 transitions. [2025-03-08 22:13:55,701 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9057750759878419 [2025-03-08 22:13:55,704 INFO L175 Difference]: Start difference. First operand has 555 places, 658 transitions, 1330 flow. Second operand 2 states and 1192 transitions. [2025-03-08 22:13:55,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 537 places, 541 transitions, 1122 flow [2025-03-08 22:13:55,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 537 places, 541 transitions, 1122 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:13:55,767 INFO L231 Difference]: Finished difference. Result has 537 places, 541 transitions, 1096 flow [2025-03-08 22:13:55,769 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=536, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=541, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1096, PETRI_PLACES=537, PETRI_TRANSITIONS=541} [2025-03-08 22:13:55,771 INFO L279 CegarLoopForPetriNet]: 555 programPoint places, -18 predicate places. [2025-03-08 22:13:55,773 INFO L471 AbstractCegarLoop]: Abstraction has has 537 places, 541 transitions, 1096 flow [2025-03-08 22:13:55,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 534.5) internal successors, (1069), 2 states have internal predecessors, (1069), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:13:55,774 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:13:55,774 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:13:55,774 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-08 22:13:55,774 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)] === [2025-03-08 22:13:55,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:13:55,775 INFO L85 PathProgramCache]: Analyzing trace with hash 1214635924, now seen corresponding path program 1 times [2025-03-08 22:13:55,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:13:55,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [186091805] [2025-03-08 22:13:55,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:13:55,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:13:55,792 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-08 22:13:55,811 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-08 22:13:55,811 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:13:55,811 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:13:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:13:56,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:13:56,545 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [186091805] [2025-03-08 22:13:56,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [186091805] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:13:56,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:13:56,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:13:56,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725694609] [2025-03-08 22:13:56,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:13:56,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:13:56,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:13:56,547 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:13:56,547 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:13:56,782 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 511 out of 658 [2025-03-08 22:13:56,786 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 537 places, 541 transitions, 1096 flow. Second operand has 6 states, 6 states have (on average 512.6666666666666) internal successors, (3076), 6 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:13:56,786 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:13:56,786 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 511 of 658 [2025-03-08 22:13:56,786 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:13:57,876 INFO L124 PetriNetUnfolderBase]: 674/6394 cut-off events. [2025-03-08 22:13:57,876 INFO L125 PetriNetUnfolderBase]: For 42/42 co-relation queries the response was YES. [2025-03-08 22:13:57,905 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7478 conditions, 6394 events. 674/6394 cut-off events. For 42/42 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 61720 event pairs, 520 based on Foata normal form. 0/5796 useless extension candidates. Maximal degree in co-relation 7473. Up to 1019 conditions per place. [2025-03-08 22:13:57,924 INFO L140 encePairwiseOnDemand]: 647/658 looper letters, 35 selfloop transitions, 22 changer transitions 0/562 dead transitions. [2025-03-08 22:13:57,924 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 542 places, 562 transitions, 1252 flow [2025-03-08 22:13:57,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-08 22:13:57,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-08 22:13:57,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3124 transitions. [2025-03-08 22:13:57,930 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.7912867274569402 [2025-03-08 22:13:57,931 INFO L175 Difference]: Start difference. First operand has 537 places, 541 transitions, 1096 flow. Second operand 6 states and 3124 transitions. [2025-03-08 22:13:57,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 542 places, 562 transitions, 1252 flow [2025-03-08 22:13:57,934 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 542 places, 562 transitions, 1252 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:13:57,939 INFO L231 Difference]: Finished difference. Result has 547 places, 562 transitions, 1246 flow [2025-03-08 22:13:57,940 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1096, PETRI_DIFFERENCE_MINUEND_PLACES=537, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=531, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1246, PETRI_PLACES=547, PETRI_TRANSITIONS=562} [2025-03-08 22:13:57,941 INFO L279 CegarLoopForPetriNet]: 555 programPoint places, -8 predicate places. [2025-03-08 22:13:57,941 INFO L471 AbstractCegarLoop]: Abstraction has has 547 places, 562 transitions, 1246 flow [2025-03-08 22:13:57,942 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 512.6666666666666) internal successors, (3076), 6 states have internal predecessors, (3076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:13:57,942 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:13:57,943 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] [2025-03-08 22:13:57,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-08 22:13:57,943 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)] === [2025-03-08 22:13:57,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:13:57,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1085240180, now seen corresponding path program 1 times [2025-03-08 22:13:57,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:13:57,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718707968] [2025-03-08 22:13:57,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:13:57,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:13:57,956 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 60 statements into 1 equivalence classes. [2025-03-08 22:13:57,962 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 60 of 60 statements. [2025-03-08 22:13:57,962 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:13:57,962 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:13:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:13:58,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:13:58,012 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718707968] [2025-03-08 22:13:58,012 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718707968] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:13:58,012 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:13:58,013 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-08 22:13:58,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790513930] [2025-03-08 22:13:58,013 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:13:58,013 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-08 22:13:58,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:13:58,014 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-08 22:13:58,014 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-08 22:13:58,042 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 528 out of 658 [2025-03-08 22:13:58,045 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 547 places, 562 transitions, 1246 flow. Second operand has 3 states, 3 states have (on average 529.6666666666666) internal successors, (1589), 3 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:13:58,045 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:13:58,045 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 528 of 658 [2025-03-08 22:13:58,045 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:13:58,606 INFO L124 PetriNetUnfolderBase]: 189/4395 cut-off events. [2025-03-08 22:13:58,606 INFO L125 PetriNetUnfolderBase]: For 206/308 co-relation queries the response was YES. [2025-03-08 22:13:58,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4848 conditions, 4395 events. 189/4395 cut-off events. For 206/308 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 35309 event pairs, 84 based on Foata normal form. 4/4107 useless extension candidates. Maximal degree in co-relation 4838. Up to 214 conditions per place. [2025-03-08 22:13:58,644 INFO L140 encePairwiseOnDemand]: 655/658 looper letters, 38 selfloop transitions, 2 changer transitions 0/567 dead transitions. [2025-03-08 22:13:58,644 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 567 transitions, 1348 flow [2025-03-08 22:13:58,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-08 22:13:58,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-08 22:13:58,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1608 transitions. [2025-03-08 22:13:58,648 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8145896656534954 [2025-03-08 22:13:58,648 INFO L175 Difference]: Start difference. First operand has 547 places, 562 transitions, 1246 flow. Second operand 3 states and 1608 transitions. [2025-03-08 22:13:58,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 567 transitions, 1348 flow [2025-03-08 22:13:58,651 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 549 places, 567 transitions, 1348 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:13:58,655 INFO L231 Difference]: Finished difference. Result has 550 places, 562 transitions, 1254 flow [2025-03-08 22:13:58,656 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=658, PETRI_DIFFERENCE_MINUEND_FLOW=1246, PETRI_DIFFERENCE_MINUEND_PLACES=547, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=562, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=560, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1254, PETRI_PLACES=550, PETRI_TRANSITIONS=562} [2025-03-08 22:13:58,656 INFO L279 CegarLoopForPetriNet]: 555 programPoint places, -5 predicate places. [2025-03-08 22:13:58,657 INFO L471 AbstractCegarLoop]: Abstraction has has 550 places, 562 transitions, 1254 flow [2025-03-08 22:13:58,658 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 529.6666666666666) internal successors, (1589), 3 states have internal predecessors, (1589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:13:58,658 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:13:58,658 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] [2025-03-08 22:13:58,658 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-08 22:13:58,658 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)] === [2025-03-08 22:13:58,659 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:13:58,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1357539365, now seen corresponding path program 1 times [2025-03-08 22:13:58,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:13:58,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [699334089] [2025-03-08 22:13:58,659 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:13:58,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:13:58,680 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-08 22:13:58,701 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-08 22:13:58,701 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:13:58,701 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:13:58,701 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-08 22:13:58,711 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 67 statements into 1 equivalence classes. [2025-03-08 22:13:58,723 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 67 of 67 statements. [2025-03-08 22:13:58,723 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:13:58,724 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-08 22:13:58,754 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-08 22:13:58,755 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-08 22:13:58,755 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (44 of 45 remaining) [2025-03-08 22:13:58,757 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (43 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (42 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (41 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (40 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (39 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (38 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (37 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (36 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (35 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (34 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (33 of 45 remaining) [2025-03-08 22:13:58,758 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (32 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (31 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (30 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (29 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (28 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9ASSERT_VIOLATIONDATA_RACE (27 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7ASSERT_VIOLATIONDATA_RACE (26 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6ASSERT_VIOLATIONDATA_RACE (25 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8ASSERT_VIOLATIONDATA_RACE (24 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5ASSERT_VIOLATIONDATA_RACE (23 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (22 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (21 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (20 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (19 of 45 remaining) [2025-03-08 22:13:58,759 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (18 of 45 remaining) [2025-03-08 22:13:58,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7ASSERT_VIOLATIONDATA_RACE (17 of 45 remaining) [2025-03-08 22:13:58,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5ASSERT_VIOLATIONDATA_RACE (16 of 45 remaining) [2025-03-08 22:13:58,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONDATA_RACE (15 of 45 remaining) [2025-03-08 22:13:58,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6ASSERT_VIOLATIONDATA_RACE (14 of 45 remaining) [2025-03-08 22:13:58,760 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3ASSERT_VIOLATIONDATA_RACE (13 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2ASSERT_VIOLATIONDATA_RACE (12 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1ASSERT_VIOLATIONDATA_RACE (11 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0ASSERT_VIOLATIONDATA_RACE (10 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9ASSERT_VIOLATIONDATA_RACE (9 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7ASSERT_VIOLATIONDATA_RACE (8 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6ASSERT_VIOLATIONDATA_RACE (7 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8ASSERT_VIOLATIONDATA_RACE (6 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5ASSERT_VIOLATIONDATA_RACE (5 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4ASSERT_VIOLATIONDATA_RACE (4 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3ASSERT_VIOLATIONDATA_RACE (3 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2ASSERT_VIOLATIONDATA_RACE (2 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1ASSERT_VIOLATIONDATA_RACE (1 of 45 remaining) [2025-03-08 22:13:58,761 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0ASSERT_VIOLATIONDATA_RACE (0 of 45 remaining) [2025-03-08 22:13:58,762 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-08 22:13:58,762 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-08 22:13:58,765 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-08 22:13:58,765 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-08 22:13:58,916 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-08 22:13:58,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 967 places, 1148 transitions, 2328 flow [2025-03-08 22:14:00,018 INFO L124 PetriNetUnfolderBase]: 559/3238 cut-off events. [2025-03-08 22:14:00,019 INFO L125 PetriNetUnfolderBase]: For 40/52 co-relation queries the response was YES. [2025-03-08 22:14:00,153 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3295 conditions, 3238 events. 559/3238 cut-off events. For 40/52 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 19687 event pairs, 1 based on Foata normal form. 0/2521 useless extension candidates. Maximal degree in co-relation 1986. Up to 48 conditions per place. [2025-03-08 22:14:00,154 INFO L82 GeneralOperation]: Start removeDead. Operand has 967 places, 1148 transitions, 2328 flow [2025-03-08 22:14:00,222 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 967 places, 1148 transitions, 2328 flow [2025-03-08 22:14:00,227 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-08 22:14:00,228 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;@43ddfd0b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-08 22:14:00,228 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-03-08 22:14:00,230 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-08 22:14:00,230 INFO L124 PetriNetUnfolderBase]: 0/23 cut-off events. [2025-03-08 22:14:00,230 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-08 22:14:00,230 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:14:00,231 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] [2025-03-08 22:14:00,231 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)] === [2025-03-08 22:14:00,231 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:14:00,231 INFO L85 PathProgramCache]: Analyzing trace with hash 1662391258, now seen corresponding path program 1 times [2025-03-08 22:14:00,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:14:00,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23848926] [2025-03-08 22:14:00,232 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:14:00,232 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:14:00,240 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 24 statements into 1 equivalence classes. [2025-03-08 22:14:00,243 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 24 of 24 statements. [2025-03-08 22:14:00,243 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:14:00,243 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:14:00,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:14:00,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:14:00,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23848926] [2025-03-08 22:14:00,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23848926] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:14:00,319 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:14:00,319 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-08 22:14:00,319 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [467321181] [2025-03-08 22:14:00,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:14:00,319 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-08 22:14:00,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:14:00,320 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-08 22:14:00,320 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-08 22:14:00,323 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 928 out of 1148 [2025-03-08 22:14:00,325 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 967 places, 1148 transitions, 2328 flow. Second operand has 2 states, 2 states have (on average 928.5) internal successors, (1857), 2 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:14:00,325 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:14:00,325 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 928 of 1148 [2025-03-08 22:14:00,325 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-08 22:14:25,266 INFO L124 PetriNetUnfolderBase]: 4608/79234 cut-off events. [2025-03-08 22:14:25,267 INFO L125 PetriNetUnfolderBase]: For 3742/3807 co-relation queries the response was YES. [2025-03-08 22:14:27,914 INFO L83 FinitePrefix]: Finished finitePrefix Result has 86207 conditions, 79234 events. 4608/79234 cut-off events. For 3742/3807 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 1181340 event pairs, 3441 based on Foata normal form. 35422/107011 useless extension candidates. Maximal degree in co-relation 19932. Up to 5401 conditions per place. [2025-03-08 22:14:28,373 INFO L140 encePairwiseOnDemand]: 953/1148 looper letters, 25 selfloop transitions, 0 changer transitions 0/945 dead transitions. [2025-03-08 22:14:28,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 935 places, 945 transitions, 1972 flow [2025-03-08 22:14:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-08 22:14:28,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-08 22:14:28,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2076 transitions. [2025-03-08 22:14:28,379 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9041811846689896 [2025-03-08 22:14:28,379 INFO L175 Difference]: Start difference. First operand has 967 places, 1148 transitions, 2328 flow. Second operand 2 states and 2076 transitions. [2025-03-08 22:14:28,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 935 places, 945 transitions, 1972 flow [2025-03-08 22:14:28,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 935 places, 945 transitions, 1972 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-08 22:14:28,403 INFO L231 Difference]: Finished difference. Result has 935 places, 945 transitions, 1922 flow [2025-03-08 22:14:28,404 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1148, PETRI_DIFFERENCE_MINUEND_FLOW=1922, PETRI_DIFFERENCE_MINUEND_PLACES=934, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=945, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1922, PETRI_PLACES=935, PETRI_TRANSITIONS=945} [2025-03-08 22:14:28,405 INFO L279 CegarLoopForPetriNet]: 967 programPoint places, -32 predicate places. [2025-03-08 22:14:28,406 INFO L471 AbstractCegarLoop]: Abstraction has has 935 places, 945 transitions, 1922 flow [2025-03-08 22:14:28,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 928.5) internal successors, (1857), 2 states have internal predecessors, (1857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:14:28,407 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-08 22:14:28,407 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-08 22:14:28,407 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-08 22:14:28,408 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)] === [2025-03-08 22:14:28,408 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-08 22:14:28,409 INFO L85 PathProgramCache]: Analyzing trace with hash 2039575311, now seen corresponding path program 1 times [2025-03-08 22:14:28,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-08 22:14:28,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547239474] [2025-03-08 22:14:28,410 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-08 22:14:28,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-08 22:14:28,427 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 49 statements into 1 equivalence classes. [2025-03-08 22:14:28,435 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 49 of 49 statements. [2025-03-08 22:14:28,435 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-08 22:14:28,435 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-08 22:14:28,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-08 22:14:28,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-08 22:14:28,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547239474] [2025-03-08 22:14:28,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547239474] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-08 22:14:28,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-08 22:14:28,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-08 22:14:28,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4219931] [2025-03-08 22:14:28,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-08 22:14:28,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-08 22:14:28,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-08 22:14:28,864 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-08 22:14:28,865 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-08 22:14:29,038 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 905 out of 1148 [2025-03-08 22:14:29,043 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 935 places, 945 transitions, 1922 flow. Second operand has 6 states, 6 states have (on average 906.6666666666666) internal successors, (5440), 6 states have internal predecessors, (5440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-08 22:14:29,043 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-08 22:14:29,043 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 905 of 1148 [2025-03-08 22:14:29,043 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand