./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/libvsync/rec_ticketlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 8fc3dc66 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/rec_ticketlock.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 26fb157b5325eaa996338c8b5885df439eefd4a5361a0a1d7cce4088ff8240ef --- Real Ultimate output --- This is Ultimate 0.3.0-?-8fc3dc6-m [2025-03-17 11:20:19,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-17 11:20:19,249 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-17 11:20:19,254 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-17 11:20:19,256 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-17 11:20:19,278 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-17 11:20:19,279 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-17 11:20:19,279 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-17 11:20:19,280 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-17 11:20:19,280 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-17 11:20:19,281 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-17 11:20:19,281 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-17 11:20:19,281 INFO L153 SettingsManager]: * Use SBE=true [2025-03-17 11:20:19,281 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-17 11:20:19,282 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-17 11:20:19,283 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-17 11:20:19,283 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-17 11:20:19,283 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-17 11:20:19,283 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-17 11:20:19,283 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-17 11:20:19,283 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-17 11:20:19,283 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-17 11:20:19,283 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:20:19,284 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-17 11:20:19,284 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-17 11:20:19,285 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-17 11:20:19,285 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 -> 26fb157b5325eaa996338c8b5885df439eefd4a5361a0a1d7cce4088ff8240ef [2025-03-17 11:20:19,530 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-17 11:20:19,539 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-17 11:20:19,540 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-17 11:20:19,545 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-17 11:20:19,545 INFO L274 PluginConnector]: CDTParser initialized [2025-03-17 11:20:19,546 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/rec_ticketlock.i [2025-03-17 11:20:20,775 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec16a621c/4394d62278234e51aaaa438e7fb47745/FLAG6069a6173 [2025-03-17 11:20:21,201 INFO L384 CDTParser]: Found 1 translation units. [2025-03-17 11:20:21,201 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_ticketlock.i [2025-03-17 11:20:21,231 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec16a621c/4394d62278234e51aaaa438e7fb47745/FLAG6069a6173 [2025-03-17 11:20:21,250 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ec16a621c/4394d62278234e51aaaa438e7fb47745 [2025-03-17 11:20:21,253 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-17 11:20:21,254 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-17 11:20:21,255 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-17 11:20:21,255 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-17 11:20:21,259 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-17 11:20:21,259 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:20:21" (1/1) ... [2025-03-17 11:20:21,260 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ba8bb77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:21, skipping insertion in model container [2025-03-17 11:20:21,260 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.03 11:20:21" (1/1) ... [2025-03-17 11:20:21,343 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-17 11:20:24,323 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:20:24,333 INFO L200 MainTranslator]: Completed pre-run [2025-03-17 11:20:24,451 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-17 11:20:24,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-17 11:20:24,452 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-17 11:20:24,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-17 11:20:24,455 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-17 11:20:24,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-17 11:20:24,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-17 11:20:24,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-17 11:20:24,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-17 11:20:24,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-17 11:20:24,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-17 11:20:24,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-17 11:20:24,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-17 11:20:24,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-17 11:20:24,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-17 11:20:24,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-17 11:20:24,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-17 11:20:24,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-17 11:20:24,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-17 11:20:24,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-17 11:20:24,466 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-17 11:20:24,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-17 11:20:24,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-17 11:20:24,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-17 11:20:24,467 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-17 11:20:24,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-17 11:20:24,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-17 11:20:24,468 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-17 11:20:24,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-17 11:20:24,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-17 11:20:24,469 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-17 11:20:24,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-17 11:20:24,470 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-17 11:20:24,472 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-17 11:20:24,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-17 11:20:24,474 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-17 11:20:24,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-17 11:20:24,475 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-17 11:20:24,476 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-17 11:20:24,477 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-17 11:20:24,478 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-17 11:20:24,479 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-17 11:20:24,480 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-17 11:20:24,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-17 11:20:24,481 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-17 11:20:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-17 11:20:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-17 11:20:24,482 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-17 11:20:24,483 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-17 11:20:24,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-17 11:20:24,484 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-17 11:20:24,485 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-17 11:20:24,486 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-17 11:20:24,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-17 11:20:24,487 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-17 11:20:24,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-17 11:20:24,488 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-17 11:20:24,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-17 11:20:24,489 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-17 11:20:24,490 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-17 11:20:24,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-17 11:20:24,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-17 11:20:24,491 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-17 11:20:24,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-17 11:20:24,493 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-17 11:20:24,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-17 11:20:24,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-17 11:20:24,494 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-17 11:20:24,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-17 11:20:24,495 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-17 11:20:24,496 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-17 11:20:24,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-17 11:20:24,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-17 11:20:24,497 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-17 11:20:24,498 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-17 11:20:24,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-17 11:20:24,499 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-17 11:20:24,501 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-17 11:20:24,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-17 11:20:24,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-17 11:20:24,502 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-17 11:20:24,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-17 11:20:24,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-17 11:20:24,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-17 11:20:24,503 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-17 11:20:24,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-17 11:20:24,504 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-17 11:20:24,506 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-17 11:20:24,507 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-17 11:20:24,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-17 11:20:24,508 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-17 11:20:24,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-17 11:20:24,509 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-17 11:20:24,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-17 11:20:24,510 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-17 11:20:24,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-17 11:20:24,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-17 11:20:24,512 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-17 11:20:24,513 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-17 11:20:24,514 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-17 11:20:24,578 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-17 11:20:24,770 INFO L204 MainTranslator]: Completed translation [2025-03-17 11:20:24,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24 WrapperNode [2025-03-17 11:20:24,771 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-17 11:20:24,771 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-17 11:20:24,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-17 11:20:24,772 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-17 11:20:24,776 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,834 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,908 INFO L138 Inliner]: procedures = 923, calls = 949, calls flagged for inlining = 838, calls inlined = 57, statements flattened = 634 [2025-03-17 11:20:24,909 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-17 11:20:24,909 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-17 11:20:24,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-17 11:20:24,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-17 11:20:24,917 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,918 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,921 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,922 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,942 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,944 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,951 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,955 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,961 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-17 11:20:24,962 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-17 11:20:24,962 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-17 11:20:24,962 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-17 11:20:24,963 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (1/1) ... [2025-03-17 11:20:24,968 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-17 11:20:24,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-17 11:20:24,996 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-03-17 11:20:24,998 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-03-17 11:20:25,017 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-17 11:20:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-17 11:20:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-17 11:20:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-17 11:20:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-17 11:20:25,018 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-17 11:20:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-17 11:20:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-17 11:20:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-17 11:20:25,018 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-17 11:20:25,020 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-17 11:20:25,150 INFO L256 CfgBuilder]: Building ICFG [2025-03-17 11:20:25,152 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-17 11:20:25,344 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6013: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-17 11:20:25,344 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L6013-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-17 11:20:25,866 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 11:20:25,867 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-10: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 11:20:25,867 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-20: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-17 11:20:25,867 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1920: havoc vatomic32_cmpxchg_rlx_#t~ret117#1; [2025-03-17 11:20:25,867 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc vatomic32_await_eq_acq_#t~ret174#1; [2025-03-17 11:20:25,867 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-17 11:20:25,867 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L4516: havoc vatomic32_get_inc_#t~ret620#1; [2025-03-17 11:20:25,868 INFO L1322 $ProcedureCfgBuilder]: dead code at ProgramPoint L2115: havoc vatomic32_get_inc_rlx_#t~ret156#1; [2025-03-17 11:20:25,868 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-17 11:20:25,869 INFO L307 CfgBuilder]: Performing block encoding [2025-03-17 11:20:26,009 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-17 11:20:26,009 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-17 11:20:26,009 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:20:26 BoogieIcfgContainer [2025-03-17 11:20:26,010 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-17 11:20:26,011 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-17 11:20:26,011 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-17 11:20:26,014 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-17 11:20:26,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.03 11:20:21" (1/3) ... [2025-03-17 11:20:26,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d95633a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:20:26, skipping insertion in model container [2025-03-17 11:20:26,015 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.03 11:20:24" (2/3) ... [2025-03-17 11:20:26,015 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d95633a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.03 11:20:26, skipping insertion in model container [2025-03-17 11:20:26,016 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.03 11:20:26" (3/3) ... [2025-03-17 11:20:26,017 INFO L128 eAbstractionObserver]: Analyzing ICFG rec_ticketlock.i [2025-03-17 11:20:26,027 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-17 11:20:26,028 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rec_ticketlock.i that has 2 procedures, 633 locations, 1 initial locations, 22 loop locations, and 29 error locations. [2025-03-17 11:20:26,029 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-17 11:20:26,194 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-17 11:20:26,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 636 places, 727 transitions, 1461 flow [2025-03-17 11:20:26,482 INFO L124 PetriNetUnfolderBase]: 108/802 cut-off events. [2025-03-17 11:20:26,484 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-17 11:20:26,502 INFO L83 FinitePrefix]: Finished finitePrefix Result has 807 conditions, 802 events. 108/802 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2573 event pairs, 0 based on Foata normal form. 0/657 useless extension candidates. Maximal degree in co-relation 686. Up to 8 conditions per place. [2025-03-17 11:20:26,503 INFO L82 GeneralOperation]: Start removeDead. Operand has 636 places, 727 transitions, 1461 flow [2025-03-17 11:20:26,514 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 636 places, 727 transitions, 1461 flow [2025-03-17 11:20:26,522 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:20:26,532 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;@4c7f449d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:20:26,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2025-03-17 11:20:26,542 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:20:26,542 INFO L124 PetriNetUnfolderBase]: 12/61 cut-off events. [2025-03-17 11:20:26,542 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:20:26,543 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:26,543 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] [2025-03-17 11:20:26,543 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:26,547 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:26,548 INFO L85 PathProgramCache]: Analyzing trace with hash 822256617, now seen corresponding path program 1 times [2025-03-17 11:20:26,553 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:26,553 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449597018] [2025-03-17 11:20:26,554 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:26,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:26,637 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 11:20:26,653 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 11:20:26,653 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:26,653 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:26,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:26,752 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:26,752 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449597018] [2025-03-17 11:20:26,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1449597018] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:26,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:26,753 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:26,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1681183238] [2025-03-17 11:20:26,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:26,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:20:26,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:26,783 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:20:26,783 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:20:26,788 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 621 out of 727 [2025-03-17 11:20:26,792 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 636 places, 727 transitions, 1461 flow. Second operand has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:26,792 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:26,792 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 621 of 727 [2025-03-17 11:20:26,794 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:27,007 INFO L124 PetriNetUnfolderBase]: 14/683 cut-off events. [2025-03-17 11:20:27,008 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-17 11:20:27,011 INFO L83 FinitePrefix]: Finished finitePrefix Result has 702 conditions, 683 events. 14/683 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2211 event pairs, 0 based on Foata normal form. 181/820 useless extension candidates. Maximal degree in co-relation 602. Up to 14 conditions per place. [2025-03-17 11:20:27,015 INFO L140 encePairwiseOnDemand]: 634/727 looper letters, 13 selfloop transitions, 0 changer transitions 0/626 dead transitions. [2025-03-17 11:20:27,015 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 626 transitions, 1285 flow [2025-03-17 11:20:27,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:20:27,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 11:20:27,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1348 transitions. [2025-03-17 11:20:27,035 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9270976616231087 [2025-03-17 11:20:27,039 INFO L175 Difference]: Start difference. First operand has 636 places, 727 transitions, 1461 flow. Second operand 2 states and 1348 transitions. [2025-03-17 11:20:27,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 626 transitions, 1285 flow [2025-03-17 11:20:27,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 626 transitions, 1285 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:27,064 INFO L231 Difference]: Finished difference. Result has 616 places, 626 transitions, 1259 flow [2025-03-17 11:20:27,068 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=1259, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=626, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1259, PETRI_PLACES=616, PETRI_TRANSITIONS=626} [2025-03-17 11:20:27,073 INFO L279 CegarLoopForPetriNet]: 636 programPoint places, -20 predicate places. [2025-03-17 11:20:27,073 INFO L471 AbstractCegarLoop]: Abstraction has has 616 places, 626 transitions, 1259 flow [2025-03-17 11:20:27,074 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 621.5) internal successors, (1243), 2 states have internal predecessors, (1243), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:27,074 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:27,074 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] [2025-03-17 11:20:27,075 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-17 11:20:27,075 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:27,075 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:27,076 INFO L85 PathProgramCache]: Analyzing trace with hash 95994344, now seen corresponding path program 1 times [2025-03-17 11:20:27,076 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:27,076 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683494148] [2025-03-17 11:20:27,076 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:27,076 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:27,102 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 11:20:27,130 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 11:20:27,130 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:27,130 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:27,977 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:27,978 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:27,979 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683494148] [2025-03-17 11:20:27,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683494148] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:27,979 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:27,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:20:27,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077431075] [2025-03-17 11:20:27,979 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:27,980 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:20:27,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:27,981 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:20:27,981 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:20:28,398 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 574 out of 727 [2025-03-17 11:20:28,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 616 places, 626 transitions, 1259 flow. Second operand has 6 states, 6 states have (on average 575.5) internal successors, (3453), 6 states have internal predecessors, (3453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:28,403 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:28,403 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 574 of 727 [2025-03-17 11:20:28,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:29,941 INFO L124 PetriNetUnfolderBase]: 983/7935 cut-off events. [2025-03-17 11:20:29,941 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 11:20:29,957 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9677 conditions, 7935 events. 983/7935 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 173. Compared 84691 event pairs, 351 based on Foata normal form. 0/7247 useless extension candidates. Maximal degree in co-relation 9673. Up to 1490 conditions per place. [2025-03-17 11:20:29,977 INFO L140 encePairwiseOnDemand]: 681/727 looper letters, 59 selfloop transitions, 162 changer transitions 0/787 dead transitions. [2025-03-17 11:20:29,978 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 787 transitions, 2023 flow [2025-03-17 11:20:29,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-17 11:20:29,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-17 11:20:29,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3666 transitions. [2025-03-17 11:20:29,987 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8404401650618982 [2025-03-17 11:20:29,987 INFO L175 Difference]: Start difference. First operand has 616 places, 626 transitions, 1259 flow. Second operand 6 states and 3666 transitions. [2025-03-17 11:20:29,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 787 transitions, 2023 flow [2025-03-17 11:20:29,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 621 places, 787 transitions, 2023 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:30,005 INFO L231 Difference]: Finished difference. Result has 626 places, 787 transitions, 2319 flow [2025-03-17 11:20:30,007 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=1259, PETRI_DIFFERENCE_MINUEND_PLACES=616, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=626, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2319, PETRI_PLACES=626, PETRI_TRANSITIONS=787} [2025-03-17 11:20:30,007 INFO L279 CegarLoopForPetriNet]: 636 programPoint places, -10 predicate places. [2025-03-17 11:20:30,007 INFO L471 AbstractCegarLoop]: Abstraction has has 626 places, 787 transitions, 2319 flow [2025-03-17 11:20:30,010 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 575.5) internal successors, (3453), 6 states have internal predecessors, (3453), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:30,010 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:30,010 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] [2025-03-17 11:20:30,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-17 11:20:30,010 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:30,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:30,011 INFO L85 PathProgramCache]: Analyzing trace with hash -49536694, now seen corresponding path program 1 times [2025-03-17 11:20:30,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:30,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884805844] [2025-03-17 11:20:30,011 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:30,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:30,023 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-17 11:20:30,028 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-17 11:20:30,028 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:30,028 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:30,045 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:30,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:30,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884805844] [2025-03-17 11:20:30,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1884805844] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:30,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:30,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:30,046 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159376414] [2025-03-17 11:20:30,046 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:30,046 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:30,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:30,047 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:30,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:30,059 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 611 out of 727 [2025-03-17 11:20:30,062 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 626 places, 787 transitions, 2319 flow. Second operand has 3 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:30,062 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:30,062 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 611 of 727 [2025-03-17 11:20:30,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:30,830 INFO L124 PetriNetUnfolderBase]: 570/7244 cut-off events. [2025-03-17 11:20:30,831 INFO L125 PetriNetUnfolderBase]: For 657/867 co-relation queries the response was YES. [2025-03-17 11:20:30,850 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9150 conditions, 7244 events. 570/7244 cut-off events. For 657/867 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 68875 event pairs, 52 based on Foata normal form. 19/6814 useless extension candidates. Maximal degree in co-relation 9141. Up to 737 conditions per place. [2025-03-17 11:20:30,873 INFO L140 encePairwiseOnDemand]: 718/727 looper letters, 76 selfloop transitions, 6 changer transitions 0/802 dead transitions. [2025-03-17 11:20:30,873 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 627 places, 802 transitions, 2535 flow [2025-03-17 11:20:30,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:30,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:30,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1874 transitions. [2025-03-17 11:20:30,876 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8592388812471343 [2025-03-17 11:20:30,879 INFO L175 Difference]: Start difference. First operand has 626 places, 787 transitions, 2319 flow. Second operand 3 states and 1874 transitions. [2025-03-17 11:20:30,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 627 places, 802 transitions, 2535 flow [2025-03-17 11:20:30,887 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 627 places, 802 transitions, 2535 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:30,893 INFO L231 Difference]: Finished difference. Result has 629 places, 791 transitions, 2365 flow [2025-03-17 11:20:30,893 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=2317, PETRI_DIFFERENCE_MINUEND_PLACES=625, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=786, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=780, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2365, PETRI_PLACES=629, PETRI_TRANSITIONS=791} [2025-03-17 11:20:30,894 INFO L279 CegarLoopForPetriNet]: 636 programPoint places, -7 predicate places. [2025-03-17 11:20:30,894 INFO L471 AbstractCegarLoop]: Abstraction has has 629 places, 791 transitions, 2365 flow [2025-03-17 11:20:30,895 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 611.6666666666666) internal successors, (1835), 3 states have internal predecessors, (1835), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:30,895 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:30,895 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:30,895 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-17 11:20:30,896 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:30,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:30,896 INFO L85 PathProgramCache]: Analyzing trace with hash -360073068, now seen corresponding path program 1 times [2025-03-17 11:20:30,896 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:30,896 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1559338599] [2025-03-17 11:20:30,896 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:30,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:30,902 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 45 statements into 1 equivalence classes. [2025-03-17 11:20:30,905 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 45 of 45 statements. [2025-03-17 11:20:30,905 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:30,905 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:30,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:30,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:30,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1559338599] [2025-03-17 11:20:30,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1559338599] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:30,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:30,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:30,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038047938] [2025-03-17 11:20:30,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:30,921 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:30,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:30,922 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:30,922 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:30,930 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 614 out of 727 [2025-03-17 11:20:30,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 791 transitions, 2365 flow. Second operand has 3 states, 3 states have (on average 614.6666666666666) internal successors, (1844), 3 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:30,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:30,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 614 of 727 [2025-03-17 11:20:30,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:31,857 INFO L124 PetriNetUnfolderBase]: 625/9079 cut-off events. [2025-03-17 11:20:31,857 INFO L125 PetriNetUnfolderBase]: For 744/984 co-relation queries the response was YES. [2025-03-17 11:20:31,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11320 conditions, 9079 events. 625/9079 cut-off events. For 744/984 co-relation queries the response was YES. Maximal size of possible extension queue 103. Compared 90100 event pairs, 36 based on Foata normal form. 47/8604 useless extension candidates. Maximal degree in co-relation 11309. Up to 873 conditions per place. [2025-03-17 11:20:31,897 INFO L140 encePairwiseOnDemand]: 721/727 looper letters, 73 selfloop transitions, 4 changer transitions 0/804 dead transitions. [2025-03-17 11:20:31,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 630 places, 804 transitions, 2567 flow [2025-03-17 11:20:31,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:31,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:31,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1877 transitions. [2025-03-17 11:20:31,902 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8606143970655663 [2025-03-17 11:20:31,902 INFO L175 Difference]: Start difference. First operand has 629 places, 791 transitions, 2365 flow. Second operand 3 states and 1877 transitions. [2025-03-17 11:20:31,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 630 places, 804 transitions, 2567 flow [2025-03-17 11:20:31,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 628 places, 804 transitions, 2555 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:20:31,922 INFO L231 Difference]: Finished difference. Result has 630 places, 793 transitions, 2381 flow [2025-03-17 11:20:31,923 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=2351, PETRI_DIFFERENCE_MINUEND_PLACES=626, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=790, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2381, PETRI_PLACES=630, PETRI_TRANSITIONS=793} [2025-03-17 11:20:31,924 INFO L279 CegarLoopForPetriNet]: 636 programPoint places, -6 predicate places. [2025-03-17 11:20:31,924 INFO L471 AbstractCegarLoop]: Abstraction has has 630 places, 793 transitions, 2381 flow [2025-03-17 11:20:31,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 614.6666666666666) internal successors, (1844), 3 states have internal predecessors, (1844), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:31,925 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:31,925 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:31,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-17 11:20:31,925 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:31,926 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:31,926 INFO L85 PathProgramCache]: Analyzing trace with hash 18686918, now seen corresponding path program 1 times [2025-03-17 11:20:31,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:31,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124994158] [2025-03-17 11:20:31,926 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:31,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:31,937 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-17 11:20:31,945 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-17 11:20:31,945 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:31,945 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:31,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:32,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:32,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124994158] [2025-03-17 11:20:32,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124994158] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:32,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:32,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-17 11:20:32,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603570015] [2025-03-17 11:20:32,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:32,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-17 11:20:32,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:32,001 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-17 11:20:32,001 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-17 11:20:32,025 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 615 out of 727 [2025-03-17 11:20:32,027 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 630 places, 793 transitions, 2381 flow. Second operand has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:32,027 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:32,027 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 615 of 727 [2025-03-17 11:20:32,027 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:33,073 INFO L124 PetriNetUnfolderBase]: 647/9761 cut-off events. [2025-03-17 11:20:33,073 INFO L125 PetriNetUnfolderBase]: For 787/1163 co-relation queries the response was YES. [2025-03-17 11:20:33,095 INFO L83 FinitePrefix]: Finished finitePrefix Result has 12129 conditions, 9761 events. 647/9761 cut-off events. For 787/1163 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 98959 event pairs, 58 based on Foata normal form. 22/9228 useless extension candidates. Maximal degree in co-relation 12117. Up to 926 conditions per place. [2025-03-17 11:20:33,110 INFO L140 encePairwiseOnDemand]: 724/727 looper letters, 74 selfloop transitions, 2 changer transitions 0/806 dead transitions. [2025-03-17 11:20:33,110 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 632 places, 806 transitions, 2589 flow [2025-03-17 11:20:33,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-17 11:20:33,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-17 11:20:33,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1876 transitions. [2025-03-17 11:20:33,114 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8601558917927556 [2025-03-17 11:20:33,114 INFO L175 Difference]: Start difference. First operand has 630 places, 793 transitions, 2381 flow. Second operand 3 states and 1876 transitions. [2025-03-17 11:20:33,114 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 632 places, 806 transitions, 2589 flow [2025-03-17 11:20:33,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 630 places, 806 transitions, 2581 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-17 11:20:33,127 INFO L231 Difference]: Finished difference. Result has 631 places, 793 transitions, 2381 flow [2025-03-17 11:20:33,128 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=727, PETRI_DIFFERENCE_MINUEND_FLOW=2373, PETRI_DIFFERENCE_MINUEND_PLACES=628, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=793, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=791, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2381, PETRI_PLACES=631, PETRI_TRANSITIONS=793} [2025-03-17 11:20:33,128 INFO L279 CegarLoopForPetriNet]: 636 programPoint places, -5 predicate places. [2025-03-17 11:20:33,128 INFO L471 AbstractCegarLoop]: Abstraction has has 631 places, 793 transitions, 2381 flow [2025-03-17 11:20:33,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 616.3333333333334) internal successors, (1849), 3 states have internal predecessors, (1849), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:33,130 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:33,130 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-17 11:20:33,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-17 11:20:33,130 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-17 11:20:33,130 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:33,131 INFO L85 PathProgramCache]: Analyzing trace with hash 1779788341, now seen corresponding path program 1 times [2025-03-17 11:20:33,131 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:33,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940056654] [2025-03-17 11:20:33,131 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:33,131 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:33,140 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 11:20:33,157 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 11:20:33,158 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:33,158 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:20:33,158 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-17 11:20:33,164 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 56 statements into 1 equivalence classes. [2025-03-17 11:20:33,174 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 56 of 56 statements. [2025-03-17 11:20:33,177 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:33,177 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-17 11:20:33,201 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-17 11:20:33,202 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-17 11:20:33,202 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2025-03-17 11:20:33,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2025-03-17 11:20:33,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2025-03-17 11:20:33,203 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2025-03-17 11:20:33,204 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2025-03-17 11:20:33,205 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2025-03-17 11:20:33,206 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2025-03-17 11:20:33,207 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2025-03-17 11:20:33,207 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-17 11:20:33,207 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-17 11:20:33,209 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-17 11:20:33,209 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-17 11:20:33,356 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-17 11:20:33,368 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1171 places, 1334 transitions, 2684 flow [2025-03-17 11:20:33,752 INFO L124 PetriNetUnfolderBase]: 205/1547 cut-off events. [2025-03-17 11:20:33,752 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-17 11:20:33,802 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1559 conditions, 1547 events. 205/1547 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 7584 event pairs, 0 based on Foata normal form. 0/1271 useless extension candidates. Maximal degree in co-relation 1344. Up to 12 conditions per place. [2025-03-17 11:20:33,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 1171 places, 1334 transitions, 2684 flow [2025-03-17 11:20:33,823 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1171 places, 1334 transitions, 2684 flow [2025-03-17 11:20:33,824 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-17 11:20:33,825 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;@4c7f449d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-17 11:20:33,825 INFO L334 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2025-03-17 11:20:33,827 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-17 11:20:33,827 INFO L124 PetriNetUnfolderBase]: 12/61 cut-off events. [2025-03-17 11:20:33,827 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-17 11:20:33,827 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:33,827 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] [2025-03-17 11:20:33,828 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2025-03-17 11:20:33,828 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:33,828 INFO L85 PathProgramCache]: Analyzing trace with hash -1694028439, now seen corresponding path program 1 times [2025-03-17 11:20:33,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:33,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041539557] [2025-03-17 11:20:33,828 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:33,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:33,836 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 36 statements into 1 equivalence classes. [2025-03-17 11:20:33,837 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 36 of 36 statements. [2025-03-17 11:20:33,837 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:33,837 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:33,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:33,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:33,844 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041539557] [2025-03-17 11:20:33,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041539557] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:33,845 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:33,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-17 11:20:33,845 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511423507] [2025-03-17 11:20:33,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:33,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-17 11:20:33,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:33,845 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-17 11:20:33,846 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-17 11:20:33,847 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1142 out of 1334 [2025-03-17 11:20:33,849 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1171 places, 1334 transitions, 2684 flow. Second operand has 2 states, 2 states have (on average 1142.5) internal successors, (2285), 2 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:33,849 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:33,849 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1142 of 1334 [2025-03-17 11:20:33,849 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-17 11:20:35,525 INFO L124 PetriNetUnfolderBase]: 326/8878 cut-off events. [2025-03-17 11:20:35,525 INFO L125 PetriNetUnfolderBase]: For 127/127 co-relation queries the response was YES. [2025-03-17 11:20:35,622 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9282 conditions, 8878 events. 326/8878 cut-off events. For 127/127 co-relation queries the response was YES. Maximal size of possible extension queue 106. Compared 93074 event pairs, 154 based on Foata normal form. 2837/11074 useless extension candidates. Maximal degree in co-relation 1332. Up to 337 conditions per place. [2025-03-17 11:20:35,653 INFO L140 encePairwiseOnDemand]: 1168/1334 looper letters, 26 selfloop transitions, 0 changer transitions 0/1156 dead transitions. [2025-03-17 11:20:35,653 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1134 places, 1156 transitions, 2380 flow [2025-03-17 11:20:35,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-17 11:20:35,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-17 11:20:35,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2476 transitions. [2025-03-17 11:20:35,658 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9280359820089955 [2025-03-17 11:20:35,658 INFO L175 Difference]: Start difference. First operand has 1171 places, 1334 transitions, 2684 flow. Second operand 2 states and 2476 transitions. [2025-03-17 11:20:35,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1134 places, 1156 transitions, 2380 flow [2025-03-17 11:20:35,663 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1134 places, 1156 transitions, 2380 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-17 11:20:35,672 INFO L231 Difference]: Finished difference. Result has 1134 places, 1156 transitions, 2328 flow [2025-03-17 11:20:35,674 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1334, PETRI_DIFFERENCE_MINUEND_FLOW=2328, PETRI_DIFFERENCE_MINUEND_PLACES=1133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1156, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2328, PETRI_PLACES=1134, PETRI_TRANSITIONS=1156} [2025-03-17 11:20:35,674 INFO L279 CegarLoopForPetriNet]: 1171 programPoint places, -37 predicate places. [2025-03-17 11:20:35,675 INFO L471 AbstractCegarLoop]: Abstraction has has 1134 places, 1156 transitions, 2328 flow [2025-03-17 11:20:35,676 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1142.5) internal successors, (2285), 2 states have internal predecessors, (2285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:35,676 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-17 11:20:35,676 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] [2025-03-17 11:20:35,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-17 11:20:35,676 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2025-03-17 11:20:35,676 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-17 11:20:35,677 INFO L85 PathProgramCache]: Analyzing trace with hash 12685864, now seen corresponding path program 1 times [2025-03-17 11:20:35,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-17 11:20:35,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478741626] [2025-03-17 11:20:35,677 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-17 11:20:35,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-17 11:20:35,685 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 38 statements into 1 equivalence classes. [2025-03-17 11:20:35,693 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 38 of 38 statements. [2025-03-17 11:20:35,694 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-17 11:20:35,694 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-17 11:20:36,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-17 11:20:36,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-17 11:20:36,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478741626] [2025-03-17 11:20:36,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478741626] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-17 11:20:36,194 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-17 11:20:36,194 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-17 11:20:36,194 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118965427] [2025-03-17 11:20:36,194 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-17 11:20:36,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-17 11:20:36,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-17 11:20:36,196 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-17 11:20:36,196 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-17 11:20:36,696 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1067 out of 1334 [2025-03-17 11:20:36,703 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1134 places, 1156 transitions, 2328 flow. Second operand has 6 states, 6 states have (on average 1068.5) internal successors, (6411), 6 states have internal predecessors, (6411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-17 11:20:36,703 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-17 11:20:36,703 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1067 of 1334 [2025-03-17 11:20:36,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand