./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/libvsync/twalock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 735b3cc8 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/twalock.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 a5c220663fb58aca5054c7d66f1914d7f3ea195b856e95063c15f81a2e5a7d9e --- Real Ultimate output --- This is Ultimate 0.3.0-?-735b3cc-m [2025-03-14 01:52:19,252 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-14 01:52:19,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-14 01:52:19,312 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-14 01:52:19,313 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-14 01:52:19,333 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-14 01:52:19,335 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-14 01:52:19,335 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-14 01:52:19,335 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-14 01:52:19,336 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-14 01:52:19,336 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-14 01:52:19,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-14 01:52:19,336 INFO L153 SettingsManager]: * Use SBE=true [2025-03-14 01:52:19,337 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-14 01:52:19,337 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-14 01:52:19,338 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:52:19,338 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-14 01:52:19,338 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-14 01:52:19,338 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 -> a5c220663fb58aca5054c7d66f1914d7f3ea195b856e95063c15f81a2e5a7d9e [2025-03-14 01:52:19,553 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-14 01:52:19,558 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-14 01:52:19,562 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-14 01:52:19,563 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-14 01:52:19,564 INFO L274 PluginConnector]: CDTParser initialized [2025-03-14 01:52:19,564 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/twalock.i [2025-03-14 01:52:20,657 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6332f70d3/1c8b36f5534340fb939b69bce5b43db2/FLAGde878fe4e [2025-03-14 01:52:21,046 INFO L384 CDTParser]: Found 1 translation units. [2025-03-14 01:52:21,047 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/twalock.i [2025-03-14 01:52:21,083 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6332f70d3/1c8b36f5534340fb939b69bce5b43db2/FLAGde878fe4e [2025-03-14 01:52:21,229 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6332f70d3/1c8b36f5534340fb939b69bce5b43db2 [2025-03-14 01:52:21,231 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-14 01:52:21,232 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-14 01:52:21,233 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-14 01:52:21,233 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-14 01:52:21,235 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-14 01:52:21,236 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:52:21" (1/1) ... [2025-03-14 01:52:21,236 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c3c22b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:21, skipping insertion in model container [2025-03-14 01:52:21,236 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.03 01:52:21" (1/1) ... [2025-03-14 01:52:21,311 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-14 01:52:23,063 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:52:23,069 INFO L200 MainTranslator]: Completed pre-run [2025-03-14 01:52:23,130 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-14 01:52:23,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-14 01:52:23,131 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-14 01:52:23,133 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-14 01:52:23,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-14 01:52:23,134 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-14 01:52:23,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-14 01:52:23,135 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-14 01:52:23,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-14 01:52:23,136 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-14 01:52:23,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-14 01:52:23,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-14 01:52:23,137 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-14 01:52:23,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-14 01:52:23,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-14 01:52:23,139 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-14 01:52:23,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-14 01:52:23,140 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-14 01:52:23,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-14 01:52:23,141 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-14 01:52:23,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-14 01:52:23,142 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-14 01:52:23,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-14 01:52:23,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-14 01:52:23,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-14 01:52:23,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-14 01:52:23,143 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-14 01:52:23,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-14 01:52:23,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-14 01:52:23,144 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-14 01:52:23,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-14 01:52:23,145 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-14 01:52:23,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-14 01:52:23,146 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-14 01:52:23,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-14 01:52:23,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-14 01:52:23,147 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-14 01:52:23,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-14 01:52:23,148 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-14 01:52:23,149 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-14 01:52:23,153 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-14 01:52:23,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-14 01:52:23,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-14 01:52:23,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-14 01:52:23,154 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-14 01:52:23,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-14 01:52:23,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-14 01:52:23,155 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-14 01:52:23,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-14 01:52:23,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-14 01:52:23,156 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-14 01:52:23,157 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-14 01:52:23,157 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-14 01:52:23,157 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-14 01:52:23,158 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-14 01:52:23,158 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-14 01:52:23,158 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-14 01:52:23,159 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-14 01:52:23,159 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-14 01:52:23,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-14 01:52:23,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-14 01:52:23,160 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-14 01:52:23,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-14 01:52:23,161 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-14 01:52:23,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-14 01:52:23,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-14 01:52:23,163 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-14 01:52:23,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-14 01:52:23,164 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-14 01:52:23,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-14 01:52:23,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-14 01:52:23,165 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-14 01:52:23,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-14 01:52:23,166 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-14 01:52:23,167 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-14 01:52:23,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-14 01:52:23,168 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-14 01:52:23,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-14 01:52:23,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-14 01:52:23,169 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-14 01:52:23,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-14 01:52:23,170 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-14 01:52:23,171 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-14 01:52:23,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-14 01:52:23,172 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-14 01:52:23,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-14 01:52:23,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-14 01:52:23,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-14 01:52:23,173 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-14 01:52:23,174 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-14 01:52:23,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-14 01:52:23,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-14 01:52:23,175 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-14 01:52:23,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-14 01:52:23,176 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-14 01:52:23,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-14 01:52:23,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-14 01:52:23,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-14 01:52:23,177 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-14 01:52:23,178 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-14 01:52:23,228 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-14 01:52:23,483 INFO L204 MainTranslator]: Completed translation [2025-03-14 01:52:23,484 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23 WrapperNode [2025-03-14 01:52:23,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-14 01:52:23,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-14 01:52:23,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-14 01:52:23,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-14 01:52:23,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,560 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,610 INFO L138 Inliner]: procedures = 918, calls = 929, calls flagged for inlining = 830, calls inlined = 61, statements flattened = 627 [2025-03-14 01:52:23,610 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-14 01:52:23,611 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-14 01:52:23,611 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-14 01:52:23,611 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-14 01:52:23,619 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,620 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,624 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,624 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,643 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,645 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,646 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,648 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,651 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-14 01:52:23,658 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-14 01:52:23,658 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-14 01:52:23,658 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-14 01:52:23,659 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (1/1) ... [2025-03-14 01:52:23,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-14 01:52:23,682 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-14 01:52:23,694 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) [2025-03-14 01:52:23,699 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 [2025-03-14 01:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-14 01:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-14 01:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-14 01:52:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-14 01:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-14 01:52:23,713 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-14 01:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-14 01:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-14 01:52:23,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-14 01:52:23,714 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-14 01:52:23,716 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-14 01:52:23,836 INFO L256 CfgBuilder]: Building ICFG [2025-03-14 01:52:23,837 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-14 01:52:24,019 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-14 01:52:24,019 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-14 01:52:24,477 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-9: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-18: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1920: havoc vatomic32_cmpxchg_rlx_#t~ret117#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc vatomic32_await_eq_acq_#t~ret174#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890-9: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890-18: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2290: havoc vatomic32_await_neq_acq_#t~ret175#1; [2025-03-14 01:52:24,478 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L4516: havoc vatomic32_get_inc_#t~ret620#1; [2025-03-14 01:52:24,479 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L4516-9: havoc vatomic32_get_inc_#t~ret620#1; [2025-03-14 01:52:24,479 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410: havoc twalock_tryacquire_#t~ret806#1; [2025-03-14 01:52:24,479 INFO L1326 $ProcedureCfgBuilder]: dead code at ProgramPoint L2115: havoc vatomic32_get_inc_rlx_#t~ret156#1; [2025-03-14 01:52:24,480 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-14 01:52:24,480 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-14 01:52:24,480 INFO L318 CfgBuilder]: Performing block encoding [2025-03-14 01:52:24,631 INFO L337 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-14 01:52:24,631 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:52:24 BoogieIcfgContainer [2025-03-14 01:52:24,634 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-14 01:52:24,636 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-14 01:52:24,636 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-14 01:52:24,640 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-14 01:52:24,640 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.03 01:52:21" (1/3) ... [2025-03-14 01:52:24,640 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7790bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:52:24, skipping insertion in model container [2025-03-14 01:52:24,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.03 01:52:23" (2/3) ... [2025-03-14 01:52:24,641 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e7790bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.03 01:52:24, skipping insertion in model container [2025-03-14 01:52:24,641 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 14.03 01:52:24" (3/3) ... [2025-03-14 01:52:24,642 INFO L128 eAbstractionObserver]: Analyzing ICFG twalock.i [2025-03-14 01:52:24,653 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-14 01:52:24,654 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG twalock.i that has 2 procedures, 620 locations, 1 initial locations, 25 loop locations, and 24 error locations. [2025-03-14 01:52:24,654 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-14 01:52:24,799 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-14 01:52:24,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 623 places, 721 transitions, 1449 flow [2025-03-14 01:52:25,003 INFO L124 PetriNetUnfolderBase]: 115/797 cut-off events. [2025-03-14 01:52:25,006 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-14 01:52:25,025 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 797 events. 115/797 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2128 event pairs, 0 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 683. Up to 8 conditions per place. [2025-03-14 01:52:25,026 INFO L82 GeneralOperation]: Start removeDead. Operand has 623 places, 721 transitions, 1449 flow [2025-03-14 01:52:25,040 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 623 places, 721 transitions, 1449 flow [2025-03-14 01:52:25,049 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:52:25,058 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;@6115d5e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:52:25,060 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2025-03-14 01:52:25,067 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:52:25,068 INFO L124 PetriNetUnfolderBase]: 12/58 cut-off events. [2025-03-14 01:52:25,068 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:52:25,068 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:25,069 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] [2025-03-14 01:52:25,071 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-14 01:52:25,076 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:25,076 INFO L85 PathProgramCache]: Analyzing trace with hash -1066830822, now seen corresponding path program 1 times [2025-03-14 01:52:25,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:25,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034366628] [2025-03-14 01:52:25,082 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:25,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:25,148 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-14 01:52:25,162 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-14 01:52:25,163 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:25,163 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:25,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:25,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:25,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034366628] [2025-03-14 01:52:25,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034366628] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:25,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:25,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:52:25,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766223128] [2025-03-14 01:52:25,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:25,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:52:25,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:25,280 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:52:25,281 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:52:25,286 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 721 [2025-03-14 01:52:25,292 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 721 transitions, 1449 flow. Second operand has 2 states, 2 states have (on average 605.5) internal successors, (1211), 2 states have internal predecessors, (1211), 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) [2025-03-14 01:52:25,292 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:25,292 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 721 [2025-03-14 01:52:25,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:52:25,512 INFO L124 PetriNetUnfolderBase]: 14/673 cut-off events. [2025-03-14 01:52:25,512 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-14 01:52:25,515 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 673 events. 14/673 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1773 event pairs, 0 based on Foata normal form. 192/830 useless extension candidates. Maximal degree in co-relation 595. Up to 15 conditions per place. [2025-03-14 01:52:25,520 INFO L140 encePairwiseOnDemand]: 619/721 looper letters, 14 selfloop transitions, 0 changer transitions 0/615 dead transitions. [2025-03-14 01:52:25,520 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 615 transitions, 1265 flow [2025-03-14 01:52:25,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:52:25,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:52:25,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1326 transitions. [2025-03-14 01:52:25,538 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9195561719833565 [2025-03-14 01:52:25,539 INFO L175 Difference]: Start difference. First operand has 623 places, 721 transitions, 1449 flow. Second operand 2 states and 1326 transitions. [2025-03-14 01:52:25,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 615 transitions, 1265 flow [2025-03-14 01:52:25,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 615 transitions, 1265 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:52:25,562 INFO L231 Difference]: Finished difference. Result has 605 places, 615 transitions, 1237 flow [2025-03-14 01:52:25,564 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1237, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1237, PETRI_PLACES=605, PETRI_TRANSITIONS=615} [2025-03-14 01:52:25,569 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -18 predicate places. [2025-03-14 01:52:25,570 INFO L471 AbstractCegarLoop]: Abstraction has has 605 places, 615 transitions, 1237 flow [2025-03-14 01:52:25,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 605.5) internal successors, (1211), 2 states have internal predecessors, (1211), 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) [2025-03-14 01:52:25,571 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:25,571 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] [2025-03-14 01:52:25,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-14 01:52:25,571 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-14 01:52:25,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:25,572 INFO L85 PathProgramCache]: Analyzing trace with hash 2128663673, now seen corresponding path program 1 times [2025-03-14 01:52:25,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:25,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1544026870] [2025-03-14 01:52:25,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:25,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:25,592 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-14 01:52:25,617 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-14 01:52:25,618 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:25,618 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:26,403 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:26,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:26,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1544026870] [2025-03-14 01:52:26,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1544026870] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:26,405 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:26,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:52:26,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539720660] [2025-03-14 01:52:26,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:26,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:52:26,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:26,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:52:26,407 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:52:26,536 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 721 [2025-03-14 01:52:26,539 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 615 transitions, 1237 flow. Second operand has 6 states, 6 states have (on average 587.5) internal successors, (3525), 6 states have internal predecessors, (3525), 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) [2025-03-14 01:52:26,539 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:26,539 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 721 [2025-03-14 01:52:26,539 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:52:27,254 INFO L124 PetriNetUnfolderBase]: 375/4824 cut-off events. [2025-03-14 01:52:27,255 INFO L125 PetriNetUnfolderBase]: For 20/34 co-relation queries the response was YES. [2025-03-14 01:52:27,265 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5418 conditions, 4824 events. 375/4824 cut-off events. For 20/34 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 43986 event pairs, 117 based on Foata normal form. 4/4430 useless extension candidates. Maximal degree in co-relation 5414. Up to 504 conditions per place. [2025-03-14 01:52:27,276 INFO L140 encePairwiseOnDemand]: 702/721 looper letters, 32 selfloop transitions, 54 changer transitions 0/668 dead transitions. [2025-03-14 01:52:27,277 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 668 transitions, 1515 flow [2025-03-14 01:52:27,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:52:27,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:52:27,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3603 transitions. [2025-03-14 01:52:27,284 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8328710124826629 [2025-03-14 01:52:27,285 INFO L175 Difference]: Start difference. First operand has 605 places, 615 transitions, 1237 flow. Second operand 6 states and 3603 transitions. [2025-03-14 01:52:27,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 668 transitions, 1515 flow [2025-03-14 01:52:27,288 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 668 transitions, 1515 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:52:27,294 INFO L231 Difference]: Finished difference. Result has 615 places, 668 transitions, 1595 flow [2025-03-14 01:52:27,295 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1237, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1595, PETRI_PLACES=615, PETRI_TRANSITIONS=668} [2025-03-14 01:52:27,295 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -8 predicate places. [2025-03-14 01:52:27,295 INFO L471 AbstractCegarLoop]: Abstraction has has 615 places, 668 transitions, 1595 flow [2025-03-14 01:52:27,297 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 587.5) internal successors, (3525), 6 states have internal predecessors, (3525), 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) [2025-03-14 01:52:27,297 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:27,297 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] [2025-03-14 01:52:27,297 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-14 01:52:27,297 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-14 01:52:27,298 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:27,298 INFO L85 PathProgramCache]: Analyzing trace with hash -694176962, now seen corresponding path program 1 times [2025-03-14 01:52:27,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:27,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607554787] [2025-03-14 01:52:27,298 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:27,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:27,305 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:52:27,311 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:52:27,311 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:27,311 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:27,330 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:27,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:27,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607554787] [2025-03-14 01:52:27,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607554787] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:27,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:27,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:52:27,330 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [834456159] [2025-03-14 01:52:27,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:27,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:52:27,331 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:27,331 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:52:27,331 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:52:27,347 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 595 out of 721 [2025-03-14 01:52:27,349 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 668 transitions, 1595 flow. Second operand has 3 states, 3 states have (on average 595.6666666666666) internal successors, (1787), 3 states have internal predecessors, (1787), 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) [2025-03-14 01:52:27,349 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:27,349 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 595 of 721 [2025-03-14 01:52:27,349 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:52:28,075 INFO L124 PetriNetUnfolderBase]: 383/6520 cut-off events. [2025-03-14 01:52:28,075 INFO L125 PetriNetUnfolderBase]: For 597/1145 co-relation queries the response was YES. [2025-03-14 01:52:28,089 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7565 conditions, 6520 events. 383/6520 cut-off events. For 597/1145 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 56555 event pairs, 30 based on Foata normal form. 61/6236 useless extension candidates. Maximal degree in co-relation 7556. Up to 299 conditions per place. [2025-03-14 01:52:28,102 INFO L140 encePairwiseOnDemand]: 712/721 looper letters, 82 selfloop transitions, 6 changer transitions 0/684 dead transitions. [2025-03-14 01:52:28,103 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 684 transitions, 1827 flow [2025-03-14 01:52:28,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:52:28,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:52:28,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1828 transitions. [2025-03-14 01:52:28,106 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8451225150254277 [2025-03-14 01:52:28,106 INFO L175 Difference]: Start difference. First operand has 615 places, 668 transitions, 1595 flow. Second operand 3 states and 1828 transitions. [2025-03-14 01:52:28,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 684 transitions, 1827 flow [2025-03-14 01:52:28,112 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 684 transitions, 1827 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:52:28,118 INFO L231 Difference]: Finished difference. Result has 618 places, 672 transitions, 1641 flow [2025-03-14 01:52:28,119 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1593, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1641, PETRI_PLACES=618, PETRI_TRANSITIONS=672} [2025-03-14 01:52:28,121 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -5 predicate places. [2025-03-14 01:52:28,121 INFO L471 AbstractCegarLoop]: Abstraction has has 618 places, 672 transitions, 1641 flow [2025-03-14 01:52:28,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.6666666666666) internal successors, (1787), 3 states have internal predecessors, (1787), 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) [2025-03-14 01:52:28,122 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:28,122 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] [2025-03-14 01:52:28,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-14 01:52:28,122 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-14 01:52:28,123 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:28,123 INFO L85 PathProgramCache]: Analyzing trace with hash -1384080212, now seen corresponding path program 1 times [2025-03-14 01:52:28,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:28,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596308281] [2025-03-14 01:52:28,123 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:28,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:28,131 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-14 01:52:28,134 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-14 01:52:28,135 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:28,135 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:28,153 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:28,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:28,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596308281] [2025-03-14 01:52:28,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596308281] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:28,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:28,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:52:28,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640830598] [2025-03-14 01:52:28,155 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:28,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:52:28,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:28,155 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:52:28,156 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:52:28,171 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 598 out of 721 [2025-03-14 01:52:28,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 672 transitions, 1641 flow. Second operand has 3 states, 3 states have (on average 598.6666666666666) internal successors, (1796), 3 states have internal predecessors, (1796), 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) [2025-03-14 01:52:28,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:28,173 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 598 of 721 [2025-03-14 01:52:28,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:52:29,037 INFO L124 PetriNetUnfolderBase]: 444/8651 cut-off events. [2025-03-14 01:52:29,038 INFO L125 PetriNetUnfolderBase]: For 685/1015 co-relation queries the response was YES. [2025-03-14 01:52:29,054 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9942 conditions, 8651 events. 444/8651 cut-off events. For 685/1015 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 79290 event pairs, 38 based on Foata normal form. 61/8318 useless extension candidates. Maximal degree in co-relation 9931. Up to 341 conditions per place. [2025-03-14 01:52:29,074 INFO L140 encePairwiseOnDemand]: 715/721 looper letters, 79 selfloop transitions, 4 changer transitions 0/686 dead transitions. [2025-03-14 01:52:29,074 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 686 transitions, 1859 flow [2025-03-14 01:52:29,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:52:29,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:52:29,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2025-03-14 01:52:29,078 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8465094775774388 [2025-03-14 01:52:29,078 INFO L175 Difference]: Start difference. First operand has 618 places, 672 transitions, 1641 flow. Second operand 3 states and 1831 transitions. [2025-03-14 01:52:29,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 686 transitions, 1859 flow [2025-03-14 01:52:29,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 686 transitions, 1847 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:52:29,091 INFO L231 Difference]: Finished difference. Result has 619 places, 674 transitions, 1657 flow [2025-03-14 01:52:29,092 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1657, PETRI_PLACES=619, PETRI_TRANSITIONS=674} [2025-03-14 01:52:29,093 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -4 predicate places. [2025-03-14 01:52:29,093 INFO L471 AbstractCegarLoop]: Abstraction has has 619 places, 674 transitions, 1657 flow [2025-03-14 01:52:29,094 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.6666666666666) internal successors, (1796), 3 states have internal predecessors, (1796), 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) [2025-03-14 01:52:29,094 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:29,094 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] [2025-03-14 01:52:29,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-14 01:52:29,095 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-14 01:52:29,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:29,095 INFO L85 PathProgramCache]: Analyzing trace with hash 1919542459, now seen corresponding path program 1 times [2025-03-14 01:52:29,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:29,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374070793] [2025-03-14 01:52:29,096 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:29,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:29,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-14 01:52:29,108 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-14 01:52:29,109 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:29,109 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:29,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:29,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:29,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374070793] [2025-03-14 01:52:29,144 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374070793] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:29,144 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:29,144 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-14 01:52:29,144 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170139812] [2025-03-14 01:52:29,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:29,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:52:29,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:29,144 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:52:29,144 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:52:29,169 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 721 [2025-03-14 01:52:29,171 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 674 transitions, 1657 flow. Second operand has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 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) [2025-03-14 01:52:29,171 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:29,172 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 721 [2025-03-14 01:52:29,172 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:52:30,100 INFO L124 PetriNetUnfolderBase]: 435/9335 cut-off events. [2025-03-14 01:52:30,100 INFO L125 PetriNetUnfolderBase]: For 681/1129 co-relation queries the response was YES. [2025-03-14 01:52:30,121 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10660 conditions, 9335 events. 435/9335 cut-off events. For 681/1129 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 88212 event pairs, 72 based on Foata normal form. 10/8938 useless extension candidates. Maximal degree in co-relation 10648. Up to 417 conditions per place. [2025-03-14 01:52:30,135 INFO L140 encePairwiseOnDemand]: 718/721 looper letters, 81 selfloop transitions, 2 changer transitions 0/689 dead transitions. [2025-03-14 01:52:30,135 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 689 transitions, 1889 flow [2025-03-14 01:52:30,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-14 01:52:30,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-14 01:52:30,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2025-03-14 01:52:30,140 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8460471567267683 [2025-03-14 01:52:30,140 INFO L175 Difference]: Start difference. First operand has 619 places, 674 transitions, 1657 flow. Second operand 3 states and 1830 transitions. [2025-03-14 01:52:30,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 689 transitions, 1889 flow [2025-03-14 01:52:30,145 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 689 transitions, 1881 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-14 01:52:30,152 INFO L231 Difference]: Finished difference. Result has 620 places, 674 transitions, 1657 flow [2025-03-14 01:52:30,152 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1649, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1657, PETRI_PLACES=620, PETRI_TRANSITIONS=674} [2025-03-14 01:52:30,153 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -3 predicate places. [2025-03-14 01:52:30,154 INFO L471 AbstractCegarLoop]: Abstraction has has 620 places, 674 transitions, 1657 flow [2025-03-14 01:52:30,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 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) [2025-03-14 01:52:30,155 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:30,155 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] [2025-03-14 01:52:30,155 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-14 01:52:30,156 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-14 01:52:30,156 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:30,157 INFO L85 PathProgramCache]: Analyzing trace with hash 1099814259, now seen corresponding path program 1 times [2025-03-14 01:52:30,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:30,157 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328105033] [2025-03-14 01:52:30,157 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:30,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:30,175 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-14 01:52:30,194 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-14 01:52:30,195 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:30,195 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:52:30,195 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-14 01:52:30,200 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-14 01:52:30,212 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-14 01:52:30,212 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:30,212 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-14 01:52:30,236 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-14 01:52:30,237 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-14 01:52:30,238 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2025-03-14 01:52:30,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2025-03-14 01:52:30,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2025-03-14 01:52:30,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2025-03-14 01:52:30,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2025-03-14 01:52:30,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2025-03-14 01:52:30,243 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2025-03-14 01:52:30,244 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2025-03-14 01:52:30,245 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2025-03-14 01:52:30,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-14 01:52:30,245 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-14 01:52:30,247 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-14 01:52:30,248 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-14 01:52:30,412 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-14 01:52:30,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1147 places, 1324 transitions, 2664 flow [2025-03-14 01:52:30,882 INFO L124 PetriNetUnfolderBase]: 219/1540 cut-off events. [2025-03-14 01:52:30,882 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-14 01:52:30,949 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 1540 events. 219/1540 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6494 event pairs, 0 based on Foata normal form. 0/1260 useless extension candidates. Maximal degree in co-relation 1338. Up to 12 conditions per place. [2025-03-14 01:52:30,949 INFO L82 GeneralOperation]: Start removeDead. Operand has 1147 places, 1324 transitions, 2664 flow [2025-03-14 01:52:31,050 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1147 places, 1324 transitions, 2664 flow [2025-03-14 01:52:31,050 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-14 01:52:31,052 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;@6115d5e6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-14 01:52:31,052 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-03-14 01:52:31,056 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-14 01:52:31,056 INFO L124 PetriNetUnfolderBase]: 12/58 cut-off events. [2025-03-14 01:52:31,056 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-14 01:52:31,056 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:31,057 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] [2025-03-14 01:52:31,057 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2025-03-14 01:52:31,058 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:31,058 INFO L85 PathProgramCache]: Analyzing trace with hash -476110522, now seen corresponding path program 1 times [2025-03-14 01:52:31,058 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:31,058 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1444745473] [2025-03-14 01:52:31,058 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:31,058 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:31,067 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-14 01:52:31,069 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-14 01:52:31,069 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:31,069 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:31,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:31,077 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:31,077 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1444745473] [2025-03-14 01:52:31,077 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1444745473] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:31,077 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:31,077 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:52:31,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821912134] [2025-03-14 01:52:31,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:31,078 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-14 01:52:31,078 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:31,078 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-14 01:52:31,078 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-14 01:52:31,080 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1112 out of 1324 [2025-03-14 01:52:31,081 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1147 places, 1324 transitions, 2664 flow. Second operand has 2 states, 2 states have (on average 1112.5) internal successors, (2225), 2 states have internal predecessors, (2225), 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) [2025-03-14 01:52:31,081 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:31,081 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1112 of 1324 [2025-03-14 01:52:31,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:52:32,807 INFO L124 PetriNetUnfolderBase]: 365/9488 cut-off events. [2025-03-14 01:52:32,807 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2025-03-14 01:52:32,881 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9951 conditions, 9488 events. 365/9488 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 94999 event pairs, 180 based on Foata normal form. 3210/12135 useless extension candidates. Maximal degree in co-relation 1351. Up to 391 conditions per place. [2025-03-14 01:52:32,898 INFO L140 encePairwiseOnDemand]: 1140/1324 looper letters, 28 selfloop transitions, 0 changer transitions 0/1136 dead transitions. [2025-03-14 01:52:32,899 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1114 places, 1136 transitions, 2344 flow [2025-03-14 01:52:32,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-14 01:52:32,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-14 01:52:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2436 transitions. [2025-03-14 01:52:32,902 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9199395770392749 [2025-03-14 01:52:32,902 INFO L175 Difference]: Start difference. First operand has 1147 places, 1324 transitions, 2664 flow. Second operand 2 states and 2436 transitions. [2025-03-14 01:52:32,903 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1114 places, 1136 transitions, 2344 flow [2025-03-14 01:52:32,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1114 places, 1136 transitions, 2344 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:52:32,913 INFO L231 Difference]: Finished difference. Result has 1114 places, 1136 transitions, 2288 flow [2025-03-14 01:52:32,914 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1324, PETRI_DIFFERENCE_MINUEND_FLOW=2288, PETRI_DIFFERENCE_MINUEND_PLACES=1113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2288, PETRI_PLACES=1114, PETRI_TRANSITIONS=1136} [2025-03-14 01:52:32,916 INFO L279 CegarLoopForPetriNet]: 1147 programPoint places, -33 predicate places. [2025-03-14 01:52:32,916 INFO L471 AbstractCegarLoop]: Abstraction has has 1114 places, 1136 transitions, 2288 flow [2025-03-14 01:52:32,917 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1112.5) internal successors, (2225), 2 states have internal predecessors, (2225), 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) [2025-03-14 01:52:32,917 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:32,917 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] [2025-03-14 01:52:32,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-14 01:52:32,918 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2025-03-14 01:52:32,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:32,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1419736027, now seen corresponding path program 1 times [2025-03-14 01:52:32,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:32,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1379122637] [2025-03-14 01:52:32,918 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:32,920 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:32,928 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-14 01:52:32,932 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-14 01:52:32,933 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:32,933 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:33,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:33,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:33,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1379122637] [2025-03-14 01:52:33,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1379122637] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:33,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:33,357 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-14 01:52:33,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34392500] [2025-03-14 01:52:33,357 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:33,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-14 01:52:33,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:33,358 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-14 01:52:33,358 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-14 01:52:33,486 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1093 out of 1324 [2025-03-14 01:52:33,491 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1114 places, 1136 transitions, 2288 flow. Second operand has 6 states, 6 states have (on average 1094.5) internal successors, (6567), 6 states have internal predecessors, (6567), 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) [2025-03-14 01:52:33,491 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:33,491 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1093 of 1324 [2025-03-14 01:52:33,491 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-14 01:52:45,019 INFO L124 PetriNetUnfolderBase]: 10044/75857 cut-off events. [2025-03-14 01:52:45,019 INFO L125 PetriNetUnfolderBase]: For 568/775 co-relation queries the response was YES. [2025-03-14 01:52:45,677 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88854 conditions, 75857 events. 10044/75857 cut-off events. For 568/775 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 1149947 event pairs, 4278 based on Foata normal form. 56/69948 useless extension candidates. Maximal degree in co-relation 88849. Up to 11751 conditions per place. [2025-03-14 01:52:45,901 INFO L140 encePairwiseOnDemand]: 1293/1324 looper letters, 47 selfloop transitions, 102 changer transitions 0/1238 dead transitions. [2025-03-14 01:52:45,901 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1119 places, 1238 transitions, 2795 flow [2025-03-14 01:52:45,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-14 01:52:45,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-14 01:52:45,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6708 transitions. [2025-03-14 01:52:45,912 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8444108761329305 [2025-03-14 01:52:45,912 INFO L175 Difference]: Start difference. First operand has 1114 places, 1136 transitions, 2288 flow. Second operand 6 states and 6708 transitions. [2025-03-14 01:52:45,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1119 places, 1238 transitions, 2795 flow [2025-03-14 01:52:45,917 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1119 places, 1238 transitions, 2795 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-14 01:52:45,925 INFO L231 Difference]: Finished difference. Result has 1124 places, 1237 transitions, 2958 flow [2025-03-14 01:52:45,926 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1324, PETRI_DIFFERENCE_MINUEND_FLOW=2288, PETRI_DIFFERENCE_MINUEND_PLACES=1114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2958, PETRI_PLACES=1124, PETRI_TRANSITIONS=1237} [2025-03-14 01:52:45,927 INFO L279 CegarLoopForPetriNet]: 1147 programPoint places, -23 predicate places. [2025-03-14 01:52:45,927 INFO L471 AbstractCegarLoop]: Abstraction has has 1124 places, 1237 transitions, 2958 flow [2025-03-14 01:52:45,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1094.5) internal successors, (6567), 6 states have internal predecessors, (6567), 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) [2025-03-14 01:52:45,929 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-14 01:52:45,929 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] [2025-03-14 01:52:45,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-14 01:52:45,930 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2025-03-14 01:52:45,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-14 01:52:45,930 INFO L85 PathProgramCache]: Analyzing trace with hash 1496015166, now seen corresponding path program 1 times [2025-03-14 01:52:45,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-14 01:52:45,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1132740536] [2025-03-14 01:52:45,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-14 01:52:45,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-14 01:52:45,936 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-14 01:52:45,938 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-14 01:52:45,938 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-14 01:52:45,938 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-14 01:52:45,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-14 01:52:45,949 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-14 01:52:45,949 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1132740536] [2025-03-14 01:52:45,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1132740536] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-14 01:52:45,949 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-14 01:52:45,950 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-14 01:52:45,950 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1601582061] [2025-03-14 01:52:45,950 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-14 01:52:45,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-14 01:52:45,951 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-14 01:52:45,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-14 01:52:45,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-14 01:52:45,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 1324 [2025-03-14 01:52:45,973 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1124 places, 1237 transitions, 2958 flow. Second operand has 3 states, 3 states have (on average 1098.6666666666667) internal successors, (3296), 3 states have internal predecessors, (3296), 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) [2025-03-14 01:52:45,973 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-14 01:52:45,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 1324 [2025-03-14 01:52:45,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand