./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/libvsync/twalock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 798a7b37 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/libvsync/twalock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5c220663fb58aca5054c7d66f1914d7f3ea195b856e95063c15f81a2e5a7d9e --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:02:11,314 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:02:11,358 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 07:02:11,362 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:02:11,365 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:02:11,386 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:02:11,387 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:02:11,387 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:02:11,387 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:02:11,387 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:02:11,387 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:02:11,387 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:02:11,387 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:02:11,388 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:02:11,388 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:02:11,388 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:02:11,389 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:02:11,389 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5c220663fb58aca5054c7d66f1914d7f3ea195b856e95063c15f81a2e5a7d9e [2025-03-04 07:02:11,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:02:11,626 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:02:11,627 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:02:11,628 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:02:11,629 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:02:11,629 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/twalock.i [2025-03-04 07:02:12,828 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8cc0eb3/cde9cc411a88453ca927979570f5c1e3/FLAG842345252 [2025-03-04 07:02:13,197 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:02:13,199 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/twalock.i [2025-03-04 07:02:13,234 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8cc0eb3/cde9cc411a88453ca927979570f5c1e3/FLAG842345252 [2025-03-04 07:02:13,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e8cc0eb3/cde9cc411a88453ca927979570f5c1e3 [2025-03-04 07:02:13,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:02:13,406 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:02:13,407 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:02:13,407 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:02:13,410 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:02:13,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:02:13" (1/1) ... [2025-03-04 07:02:13,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@304366dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:13, skipping insertion in model container [2025-03-04 07:02:13,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:02:13" (1/1) ... [2025-03-04 07:02:13,469 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:02:15,062 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:02:15,072 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:02:15,188 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-04 07:02:15,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-04 07:02:15,190 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-04 07:02:15,191 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-04 07:02:15,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-04 07:02:15,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-04 07:02:15,192 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-04 07:02:15,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-04 07:02:15,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-04 07:02:15,193 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-04 07:02:15,194 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-04 07:02:15,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-04 07:02:15,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-04 07:02:15,195 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-04 07:02:15,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-04 07:02:15,196 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-04 07:02:15,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-04 07:02:15,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-04 07:02:15,198 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-04 07:02:15,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-04 07:02:15,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-04 07:02:15,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-04 07:02:15,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-04 07:02:15,199 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-04 07:02:15,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-04 07:02:15,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-04 07:02:15,200 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-04 07:02:15,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-04 07:02:15,203 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-04 07:02:15,204 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-04 07:02:15,205 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-04 07:02:15,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-04 07:02:15,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-04 07:02:15,206 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-04 07:02:15,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-04 07:02:15,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-04 07:02:15,208 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-04 07:02:15,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-04 07:02:15,209 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-04 07:02:15,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-04 07:02:15,210 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-04 07:02:15,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-04 07:02:15,211 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-04 07:02:15,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-04 07:02:15,212 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-04 07:02:15,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-04 07:02:15,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-04 07:02:15,213 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-04 07:02:15,214 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-04 07:02:15,215 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-04 07:02:15,216 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-04 07:02:15,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-04 07:02:15,217 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-04 07:02:15,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-04 07:02:15,218 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-04 07:02:15,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-04 07:02:15,219 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-04 07:02:15,220 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-04 07:02:15,220 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-04 07:02:15,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-04 07:02:15,221 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-04 07:02:15,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-04 07:02:15,222 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-04 07:02:15,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-04 07:02:15,223 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-04 07:02:15,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-04 07:02:15,224 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-04 07:02:15,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-04 07:02:15,225 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-04 07:02:15,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-04 07:02:15,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-04 07:02:15,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-04 07:02:15,226 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-04 07:02:15,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-04 07:02:15,227 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-04 07:02:15,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-04 07:02:15,228 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-04 07:02:15,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-04 07:02:15,229 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-04 07:02:15,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-04 07:02:15,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-04 07:02:15,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-04 07:02:15,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-04 07:02:15,230 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-04 07:02:15,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-04 07:02:15,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-04 07:02:15,231 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-04 07:02:15,233 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-04 07:02:15,234 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-04 07:02:15,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-04 07:02:15,235 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-04 07:02:15,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-04 07:02:15,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-04 07:02:15,236 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-04 07:02:15,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-04 07:02:15,237 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-04 07:02:15,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-04 07:02:15,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-04 07:02:15,238 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-04 07:02:15,239 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-04 07:02:15,286 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:02:15,466 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:02:15,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15 WrapperNode [2025-03-04 07:02:15,467 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:02:15,468 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:02:15,468 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:02:15,468 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:02:15,474 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,540 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,585 INFO L138 Inliner]: procedures = 918, calls = 929, calls flagged for inlining = 830, calls inlined = 61, statements flattened = 627 [2025-03-04 07:02:15,589 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:02:15,591 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:02:15,592 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:02:15,592 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:02:15,599 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,599 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,602 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,602 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,626 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,633 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,635 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,640 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,668 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:02:15,669 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:02:15,669 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:02:15,669 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:02:15,673 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (1/1) ... [2025-03-04 07:02:15,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:02:15,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:02:15,723 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) [2025-03-04 07:02:15,733 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 [2025-03-04 07:02:15,757 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 07:02:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:02:15,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:02:15,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:02:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-04 07:02:15,759 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-04 07:02:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 07:02:15,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 07:02:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:02:15,760 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 07:02:15,765 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-04 07:02:15,931 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:02:15,933 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:02:16,135 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-04 07:02:16,135 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6026-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-04 07:02:16,622 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-04 07:02:16,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-9: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-04 07:02:16,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885-18: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-04 07:02:16,623 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1920: havoc vatomic32_cmpxchg_rlx_#t~ret117#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc vatomic32_await_eq_acq_#t~ret174#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890-9: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1890-18: havoc vatomic32_read_acq_#t~ret113#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2290: havoc vatomic32_await_neq_acq_#t~ret175#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4516: havoc vatomic32_get_inc_#t~ret620#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L4516-9: havoc vatomic32_get_inc_#t~ret620#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L5410: havoc twalock_tryacquire_#t~ret806#1; [2025-03-04 07:02:16,624 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2115: havoc vatomic32_get_inc_rlx_#t~ret156#1; [2025-03-04 07:02:16,625 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 07:02:16,625 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:02:16,768 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:02:16,769 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:02:16,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:02:16 BoogieIcfgContainer [2025-03-04 07:02:16,769 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:02:16,771 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:02:16,771 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:02:16,774 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:02:16,774 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:02:13" (1/3) ... [2025-03-04 07:02:16,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:02:16, skipping insertion in model container [2025-03-04 07:02:16,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:02:15" (2/3) ... [2025-03-04 07:02:16,775 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71e40 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:02:16, skipping insertion in model container [2025-03-04 07:02:16,775 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:02:16" (3/3) ... [2025-03-04 07:02:16,776 INFO L128 eAbstractionObserver]: Analyzing ICFG twalock.i [2025-03-04 07:02:16,785 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:02:16,786 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG twalock.i that has 2 procedures, 620 locations, 1 initial locations, 25 loop locations, and 24 error locations. [2025-03-04 07:02:16,787 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 07:02:16,910 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 07:02:16,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 623 places, 721 transitions, 1449 flow [2025-03-04 07:02:17,127 INFO L124 PetriNetUnfolderBase]: 115/797 cut-off events. [2025-03-04 07:02:17,130 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 07:02:17,147 INFO L83 FinitePrefix]: Finished finitePrefix Result has 802 conditions, 797 events. 115/797 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 2128 event pairs, 0 based on Foata normal form. 0/650 useless extension candidates. Maximal degree in co-relation 683. Up to 8 conditions per place. [2025-03-04 07:02:17,149 INFO L82 GeneralOperation]: Start removeDead. Operand has 623 places, 721 transitions, 1449 flow [2025-03-04 07:02:17,162 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 623 places, 721 transitions, 1449 flow [2025-03-04 07:02:17,172 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:02:17,179 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;@3c936f1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:02:17,179 INFO L334 AbstractCegarLoop]: Starting to check reachability of 44 error locations. [2025-03-04 07:02:17,188 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 07:02:17,189 INFO L124 PetriNetUnfolderBase]: 12/58 cut-off events. [2025-03-04 07:02:17,189 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 07:02:17,189 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:17,190 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:17,190 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 07:02:17,195 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:17,195 INFO L85 PathProgramCache]: Analyzing trace with hash 1475966489, now seen corresponding path program 1 times [2025-03-04 07:02:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:17,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1457447470] [2025-03-04 07:02:17,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:17,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:17,271 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 07:02:17,282 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 07:02:17,282 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:17,282 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:17,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:17,366 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:17,366 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1457447470] [2025-03-04 07:02:17,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1457447470] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:17,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:17,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:02:17,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615564796] [2025-03-04 07:02:17,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:17,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 07:02:17,378 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:17,396 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 07:02:17,396 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:02:17,401 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 605 out of 721 [2025-03-04 07:02:17,407 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 623 places, 721 transitions, 1449 flow. Second operand has 2 states, 2 states have (on average 605.5) internal successors, (1211), 2 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:17,407 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:17,407 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 605 of 721 [2025-03-04 07:02:17,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:02:17,611 INFO L124 PetriNetUnfolderBase]: 14/673 cut-off events. [2025-03-04 07:02:17,611 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-04 07:02:17,614 INFO L83 FinitePrefix]: Finished finitePrefix Result has 693 conditions, 673 events. 14/673 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1773 event pairs, 0 based on Foata normal form. 192/830 useless extension candidates. Maximal degree in co-relation 595. Up to 15 conditions per place. [2025-03-04 07:02:17,617 INFO L140 encePairwiseOnDemand]: 619/721 looper letters, 14 selfloop transitions, 0 changer transitions 0/615 dead transitions. [2025-03-04 07:02:17,618 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 615 transitions, 1265 flow [2025-03-04 07:02:17,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 07:02:17,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 07:02:17,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1326 transitions. [2025-03-04 07:02:17,634 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9195561719833565 [2025-03-04 07:02:17,636 INFO L175 Difference]: Start difference. First operand has 623 places, 721 transitions, 1449 flow. Second operand 2 states and 1326 transitions. [2025-03-04 07:02:17,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 615 transitions, 1265 flow [2025-03-04 07:02:17,644 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 615 transitions, 1265 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:02:17,655 INFO L231 Difference]: Finished difference. Result has 605 places, 615 transitions, 1237 flow [2025-03-04 07:02:17,658 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1237, PETRI_DIFFERENCE_MINUEND_PLACES=604, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=615, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1237, PETRI_PLACES=605, PETRI_TRANSITIONS=615} [2025-03-04 07:02:17,661 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -18 predicate places. [2025-03-04 07:02:17,661 INFO L471 AbstractCegarLoop]: Abstraction has has 605 places, 615 transitions, 1237 flow [2025-03-04 07:02:17,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 605.5) internal successors, (1211), 2 states have internal predecessors, (1211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:17,663 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:17,663 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:17,663 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 07:02:17,663 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 07:02:17,664 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:17,664 INFO L85 PathProgramCache]: Analyzing trace with hash 1920488088, now seen corresponding path program 1 times [2025-03-04 07:02:17,664 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:17,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713976325] [2025-03-04 07:02:17,664 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:17,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:17,677 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 07:02:17,703 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 07:02:17,705 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:17,706 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:18,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:18,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:18,496 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713976325] [2025-03-04 07:02:18,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713976325] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:18,496 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:18,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:02:18,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928516896] [2025-03-04 07:02:18,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:18,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:02:18,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:18,497 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:02:18,497 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:02:18,649 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 586 out of 721 [2025-03-04 07:02:18,653 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 605 places, 615 transitions, 1237 flow. Second operand has 6 states, 6 states have (on average 587.5) internal successors, (3525), 6 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:18,653 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:18,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 586 of 721 [2025-03-04 07:02:18,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:02:19,402 INFO L124 PetriNetUnfolderBase]: 375/4824 cut-off events. [2025-03-04 07:02:19,403 INFO L125 PetriNetUnfolderBase]: For 20/34 co-relation queries the response was YES. [2025-03-04 07:02:19,411 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5418 conditions, 4824 events. 375/4824 cut-off events. For 20/34 co-relation queries the response was YES. Maximal size of possible extension queue 88. Compared 43986 event pairs, 117 based on Foata normal form. 4/4430 useless extension candidates. Maximal degree in co-relation 5414. Up to 504 conditions per place. [2025-03-04 07:02:19,421 INFO L140 encePairwiseOnDemand]: 702/721 looper letters, 32 selfloop transitions, 54 changer transitions 0/668 dead transitions. [2025-03-04 07:02:19,421 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 610 places, 668 transitions, 1515 flow [2025-03-04 07:02:19,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:02:19,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 07:02:19,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3603 transitions. [2025-03-04 07:02:19,458 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8328710124826629 [2025-03-04 07:02:19,458 INFO L175 Difference]: Start difference. First operand has 605 places, 615 transitions, 1237 flow. Second operand 6 states and 3603 transitions. [2025-03-04 07:02:19,458 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 610 places, 668 transitions, 1515 flow [2025-03-04 07:02:19,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 610 places, 668 transitions, 1515 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:02:19,466 INFO L231 Difference]: Finished difference. Result has 615 places, 668 transitions, 1595 flow [2025-03-04 07:02:19,467 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1237, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=615, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=597, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=1595, PETRI_PLACES=615, PETRI_TRANSITIONS=668} [2025-03-04 07:02:19,468 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -8 predicate places. [2025-03-04 07:02:19,468 INFO L471 AbstractCegarLoop]: Abstraction has has 615 places, 668 transitions, 1595 flow [2025-03-04 07:02:19,469 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 587.5) internal successors, (3525), 6 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:19,470 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:19,470 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:19,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 07:02:19,470 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 07:02:19,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:19,471 INFO L85 PathProgramCache]: Analyzing trace with hash -1059151682, now seen corresponding path program 1 times [2025-03-04 07:02:19,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:19,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [696833741] [2025-03-04 07:02:19,471 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:19,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:19,476 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 07:02:19,478 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 07:02:19,478 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:19,478 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:19,500 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:19,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:19,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [696833741] [2025-03-04 07:02:19,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [696833741] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:19,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:19,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:02:19,501 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176745205] [2025-03-04 07:02:19,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:19,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:02:19,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:19,501 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:02:19,502 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:02:19,512 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 595 out of 721 [2025-03-04 07:02:19,514 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 615 places, 668 transitions, 1595 flow. Second operand has 3 states, 3 states have (on average 595.6666666666666) internal successors, (1787), 3 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:19,515 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:19,515 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 595 of 721 [2025-03-04 07:02:19,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:02:20,215 INFO L124 PetriNetUnfolderBase]: 383/6520 cut-off events. [2025-03-04 07:02:20,215 INFO L125 PetriNetUnfolderBase]: For 597/1145 co-relation queries the response was YES. [2025-03-04 07:02:20,225 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7565 conditions, 6520 events. 383/6520 cut-off events. For 597/1145 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 56555 event pairs, 30 based on Foata normal form. 61/6236 useless extension candidates. Maximal degree in co-relation 7556. Up to 299 conditions per place. [2025-03-04 07:02:20,234 INFO L140 encePairwiseOnDemand]: 712/721 looper letters, 82 selfloop transitions, 6 changer transitions 0/684 dead transitions. [2025-03-04 07:02:20,237 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 684 transitions, 1827 flow [2025-03-04 07:02:20,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:02:20,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:02:20,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1828 transitions. [2025-03-04 07:02:20,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8451225150254277 [2025-03-04 07:02:20,242 INFO L175 Difference]: Start difference. First operand has 615 places, 668 transitions, 1595 flow. Second operand 3 states and 1828 transitions. [2025-03-04 07:02:20,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 684 transitions, 1827 flow [2025-03-04 07:02:20,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 616 places, 684 transitions, 1827 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:02:20,253 INFO L231 Difference]: Finished difference. Result has 618 places, 672 transitions, 1641 flow [2025-03-04 07:02:20,253 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1593, PETRI_DIFFERENCE_MINUEND_PLACES=614, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=661, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1641, PETRI_PLACES=618, PETRI_TRANSITIONS=672} [2025-03-04 07:02:20,255 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -5 predicate places. [2025-03-04 07:02:20,255 INFO L471 AbstractCegarLoop]: Abstraction has has 618 places, 672 transitions, 1641 flow [2025-03-04 07:02:20,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.6666666666666) internal successors, (1787), 3 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:20,256 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:20,256 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:20,256 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 07:02:20,256 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 07:02:20,257 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:20,257 INFO L85 PathProgramCache]: Analyzing trace with hash 62532108, now seen corresponding path program 1 times [2025-03-04 07:02:20,257 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:20,257 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [41367950] [2025-03-04 07:02:20,257 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:20,258 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:20,263 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 42 statements into 1 equivalence classes. [2025-03-04 07:02:20,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 42 of 42 statements. [2025-03-04 07:02:20,268 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:20,268 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:20,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:20,285 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:20,285 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [41367950] [2025-03-04 07:02:20,285 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [41367950] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:20,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:20,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:02:20,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498349810] [2025-03-04 07:02:20,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:20,286 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:02:20,286 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:20,287 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:02:20,287 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:02:20,298 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 598 out of 721 [2025-03-04 07:02:20,300 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 618 places, 672 transitions, 1641 flow. Second operand has 3 states, 3 states have (on average 598.6666666666666) internal successors, (1796), 3 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:20,300 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:20,300 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 598 of 721 [2025-03-04 07:02:20,300 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:02:21,089 INFO L124 PetriNetUnfolderBase]: 444/8651 cut-off events. [2025-03-04 07:02:21,089 INFO L125 PetriNetUnfolderBase]: For 685/1015 co-relation queries the response was YES. [2025-03-04 07:02:21,104 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9942 conditions, 8651 events. 444/8651 cut-off events. For 685/1015 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 79290 event pairs, 38 based on Foata normal form. 61/8318 useless extension candidates. Maximal degree in co-relation 9931. Up to 341 conditions per place. [2025-03-04 07:02:21,118 INFO L140 encePairwiseOnDemand]: 715/721 looper letters, 79 selfloop transitions, 4 changer transitions 0/686 dead transitions. [2025-03-04 07:02:21,118 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 619 places, 686 transitions, 1859 flow [2025-03-04 07:02:21,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:02:21,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:02:21,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1831 transitions. [2025-03-04 07:02:21,121 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8465094775774388 [2025-03-04 07:02:21,121 INFO L175 Difference]: Start difference. First operand has 618 places, 672 transitions, 1641 flow. Second operand 3 states and 1831 transitions. [2025-03-04 07:02:21,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 619 places, 686 transitions, 1859 flow [2025-03-04 07:02:21,129 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 617 places, 686 transitions, 1847 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:02:21,133 INFO L231 Difference]: Finished difference. Result has 619 places, 674 transitions, 1657 flow [2025-03-04 07:02:21,134 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1627, PETRI_DIFFERENCE_MINUEND_PLACES=615, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=671, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=667, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1657, PETRI_PLACES=619, PETRI_TRANSITIONS=674} [2025-03-04 07:02:21,135 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -4 predicate places. [2025-03-04 07:02:21,135 INFO L471 AbstractCegarLoop]: Abstraction has has 619 places, 674 transitions, 1657 flow [2025-03-04 07:02:21,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 598.6666666666666) internal successors, (1796), 3 states have internal predecessors, (1796), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:21,136 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:21,136 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] [2025-03-04 07:02:21,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 07:02:21,136 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 07:02:21,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:21,136 INFO L85 PathProgramCache]: Analyzing trace with hash -480115878, now seen corresponding path program 1 times [2025-03-04 07:02:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:21,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502884056] [2025-03-04 07:02:21,137 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:21,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:21,143 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 43 statements into 1 equivalence classes. [2025-03-04 07:02:21,147 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 43 of 43 statements. [2025-03-04 07:02:21,147 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:21,147 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:21,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:21,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:21,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502884056] [2025-03-04 07:02:21,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502884056] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:21,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:21,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:02:21,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [112330110] [2025-03-04 07:02:21,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:21,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:02:21,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:21,197 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:02:21,197 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:02:21,219 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 599 out of 721 [2025-03-04 07:02:21,221 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 619 places, 674 transitions, 1657 flow. Second operand has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:21,221 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:21,221 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 599 of 721 [2025-03-04 07:02:21,221 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:02:22,246 INFO L124 PetriNetUnfolderBase]: 435/9335 cut-off events. [2025-03-04 07:02:22,247 INFO L125 PetriNetUnfolderBase]: For 681/1129 co-relation queries the response was YES. [2025-03-04 07:02:22,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10660 conditions, 9335 events. 435/9335 cut-off events. For 681/1129 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 88212 event pairs, 72 based on Foata normal form. 10/8938 useless extension candidates. Maximal degree in co-relation 10648. Up to 417 conditions per place. [2025-03-04 07:02:22,285 INFO L140 encePairwiseOnDemand]: 718/721 looper letters, 81 selfloop transitions, 2 changer transitions 0/689 dead transitions. [2025-03-04 07:02:22,286 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 689 transitions, 1889 flow [2025-03-04 07:02:22,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:02:22,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:02:22,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1830 transitions. [2025-03-04 07:02:22,289 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8460471567267683 [2025-03-04 07:02:22,289 INFO L175 Difference]: Start difference. First operand has 619 places, 674 transitions, 1657 flow. Second operand 3 states and 1830 transitions. [2025-03-04 07:02:22,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 689 transitions, 1889 flow [2025-03-04 07:02:22,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 619 places, 689 transitions, 1881 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:02:22,298 INFO L231 Difference]: Finished difference. Result has 620 places, 674 transitions, 1657 flow [2025-03-04 07:02:22,299 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=721, PETRI_DIFFERENCE_MINUEND_FLOW=1649, PETRI_DIFFERENCE_MINUEND_PLACES=617, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=672, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1657, PETRI_PLACES=620, PETRI_TRANSITIONS=674} [2025-03-04 07:02:22,300 INFO L279 CegarLoopForPetriNet]: 623 programPoint places, -3 predicate places. [2025-03-04 07:02:22,300 INFO L471 AbstractCegarLoop]: Abstraction has has 620 places, 674 transitions, 1657 flow [2025-03-04 07:02:22,301 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 600.3333333333334) internal successors, (1801), 3 states have internal predecessors, (1801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:22,301 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:22,301 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:22,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 07:02:22,301 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 41 more)] === [2025-03-04 07:02:22,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:22,301 INFO L85 PathProgramCache]: Analyzing trace with hash -60110670, now seen corresponding path program 1 times [2025-03-04 07:02:22,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:22,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324955206] [2025-03-04 07:02:22,302 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:22,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:22,311 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 07:02:22,324 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 07:02:22,326 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:22,326 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:02:22,326 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 07:02:22,347 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 07:02:22,358 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 07:02:22,359 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:22,359 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:02:22,386 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 07:02:22,387 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 07:02:22,387 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (43 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (42 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (41 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (40 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (39 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (38 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (37 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (36 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (35 of 44 remaining) [2025-03-04 07:02:22,389 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (34 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (33 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (32 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (31 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (30 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (29 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (28 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (27 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (26 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (25 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (24 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (23 of 44 remaining) [2025-03-04 07:02:22,390 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (22 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (21 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (20 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (19 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (18 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (17 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (16 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (15 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (14 of 44 remaining) [2025-03-04 07:02:22,391 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (13 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (12 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (11 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (10 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (9 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (8 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (7 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (6 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (5 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (4 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (3 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (2 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (1 of 44 remaining) [2025-03-04 07:02:22,392 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (0 of 44 remaining) [2025-03-04 07:02:22,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 07:02:22,393 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-04 07:02:22,395 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 07:02:22,396 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 07:02:22,541 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 07:02:22,556 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1147 places, 1324 transitions, 2664 flow [2025-03-04 07:02:22,876 INFO L124 PetriNetUnfolderBase]: 219/1540 cut-off events. [2025-03-04 07:02:22,876 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 07:02:22,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1552 conditions, 1540 events. 219/1540 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 6494 event pairs, 0 based on Foata normal form. 0/1260 useless extension candidates. Maximal degree in co-relation 1338. Up to 12 conditions per place. [2025-03-04 07:02:22,927 INFO L82 GeneralOperation]: Start removeDead. Operand has 1147 places, 1324 transitions, 2664 flow [2025-03-04 07:02:22,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1147 places, 1324 transitions, 2664 flow [2025-03-04 07:02:22,955 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:02:22,955 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;@3c936f1d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:02:22,955 INFO L334 AbstractCegarLoop]: Starting to check reachability of 63 error locations. [2025-03-04 07:02:22,957 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 07:02:22,958 INFO L124 PetriNetUnfolderBase]: 12/58 cut-off events. [2025-03-04 07:02:22,958 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 07:02:22,958 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:22,958 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:22,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2025-03-04 07:02:22,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:22,958 INFO L85 PathProgramCache]: Analyzing trace with hash 2066686789, now seen corresponding path program 1 times [2025-03-04 07:02:22,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:22,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [837441981] [2025-03-04 07:02:22,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:22,959 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:22,966 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 33 statements into 1 equivalence classes. [2025-03-04 07:02:22,967 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 33 of 33 statements. [2025-03-04 07:02:22,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:22,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:22,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:22,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:22,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [837441981] [2025-03-04 07:02:22,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [837441981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:22,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:22,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:02:22,974 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191577050] [2025-03-04 07:02:22,974 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:22,974 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 07:02:22,974 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:22,974 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 07:02:22,974 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:02:22,976 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1112 out of 1324 [2025-03-04 07:02:22,978 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1147 places, 1324 transitions, 2664 flow. Second operand has 2 states, 2 states have (on average 1112.5) internal successors, (2225), 2 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:22,978 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:22,978 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1112 of 1324 [2025-03-04 07:02:22,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:02:24,746 INFO L124 PetriNetUnfolderBase]: 365/9488 cut-off events. [2025-03-04 07:02:24,746 INFO L125 PetriNetUnfolderBase]: For 137/137 co-relation queries the response was YES. [2025-03-04 07:02:24,804 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9951 conditions, 9488 events. 365/9488 cut-off events. For 137/137 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 94999 event pairs, 180 based on Foata normal form. 3210/12135 useless extension candidates. Maximal degree in co-relation 1351. Up to 391 conditions per place. [2025-03-04 07:02:24,829 INFO L140 encePairwiseOnDemand]: 1140/1324 looper letters, 28 selfloop transitions, 0 changer transitions 0/1136 dead transitions. [2025-03-04 07:02:24,829 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1114 places, 1136 transitions, 2344 flow [2025-03-04 07:02:24,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 07:02:24,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 07:02:24,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2436 transitions. [2025-03-04 07:02:24,834 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9199395770392749 [2025-03-04 07:02:24,834 INFO L175 Difference]: Start difference. First operand has 1147 places, 1324 transitions, 2664 flow. Second operand 2 states and 2436 transitions. [2025-03-04 07:02:24,834 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1114 places, 1136 transitions, 2344 flow [2025-03-04 07:02:24,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1114 places, 1136 transitions, 2344 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:02:24,848 INFO L231 Difference]: Finished difference. Result has 1114 places, 1136 transitions, 2288 flow [2025-03-04 07:02:24,850 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1324, PETRI_DIFFERENCE_MINUEND_FLOW=2288, PETRI_DIFFERENCE_MINUEND_PLACES=1113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1136, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2288, PETRI_PLACES=1114, PETRI_TRANSITIONS=1136} [2025-03-04 07:02:24,850 INFO L279 CegarLoopForPetriNet]: 1147 programPoint places, -33 predicate places. [2025-03-04 07:02:24,850 INFO L471 AbstractCegarLoop]: Abstraction has has 1114 places, 1136 transitions, 2288 flow [2025-03-04 07:02:24,851 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1112.5) internal successors, (2225), 2 states have internal predecessors, (2225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:24,852 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:24,852 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:24,852 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 07:02:24,852 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2025-03-04 07:02:24,852 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:24,852 INFO L85 PathProgramCache]: Analyzing trace with hash -1627911612, now seen corresponding path program 1 times [2025-03-04 07:02:24,852 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:24,853 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747954875] [2025-03-04 07:02:24,853 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:24,853 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:24,861 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 35 statements into 1 equivalence classes. [2025-03-04 07:02:24,865 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 35 of 35 statements. [2025-03-04 07:02:24,866 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:24,866 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:25,392 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:25,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:25,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747954875] [2025-03-04 07:02:25,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747954875] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:25,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:25,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:02:25,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876542068] [2025-03-04 07:02:25,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:25,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:02:25,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:25,394 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:02:25,394 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:02:25,534 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1093 out of 1324 [2025-03-04 07:02:25,541 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1114 places, 1136 transitions, 2288 flow. Second operand has 6 states, 6 states have (on average 1094.5) internal successors, (6567), 6 states have internal predecessors, (6567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:25,542 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:25,542 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1093 of 1324 [2025-03-04 07:02:25,542 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:02:38,586 INFO L124 PetriNetUnfolderBase]: 10044/75857 cut-off events. [2025-03-04 07:02:38,586 INFO L125 PetriNetUnfolderBase]: For 568/775 co-relation queries the response was YES. [2025-03-04 07:02:38,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 88854 conditions, 75857 events. 10044/75857 cut-off events. For 568/775 co-relation queries the response was YES. Maximal size of possible extension queue 931. Compared 1149947 event pairs, 4278 based on Foata normal form. 56/69948 useless extension candidates. Maximal degree in co-relation 88849. Up to 11751 conditions per place. [2025-03-04 07:02:39,231 INFO L140 encePairwiseOnDemand]: 1293/1324 looper letters, 47 selfloop transitions, 102 changer transitions 0/1238 dead transitions. [2025-03-04 07:02:39,231 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1119 places, 1238 transitions, 2795 flow [2025-03-04 07:02:39,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:02:39,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 07:02:39,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6708 transitions. [2025-03-04 07:02:39,242 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8444108761329305 [2025-03-04 07:02:39,243 INFO L175 Difference]: Start difference. First operand has 1114 places, 1136 transitions, 2288 flow. Second operand 6 states and 6708 transitions. [2025-03-04 07:02:39,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1119 places, 1238 transitions, 2795 flow [2025-03-04 07:02:39,249 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1119 places, 1238 transitions, 2795 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:02:39,257 INFO L231 Difference]: Finished difference. Result has 1124 places, 1237 transitions, 2958 flow [2025-03-04 07:02:39,259 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1324, PETRI_DIFFERENCE_MINUEND_FLOW=2288, PETRI_DIFFERENCE_MINUEND_PLACES=1114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2958, PETRI_PLACES=1124, PETRI_TRANSITIONS=1237} [2025-03-04 07:02:39,259 INFO L279 CegarLoopForPetriNet]: 1147 programPoint places, -23 predicate places. [2025-03-04 07:02:39,259 INFO L471 AbstractCegarLoop]: Abstraction has has 1124 places, 1237 transitions, 2958 flow [2025-03-04 07:02:39,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 1094.5) internal successors, (6567), 6 states have internal predecessors, (6567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:39,262 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:02:39,262 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:02:39,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2025-03-04 07:02:39,262 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 60 more)] === [2025-03-04 07:02:39,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:02:39,263 INFO L85 PathProgramCache]: Analyzing trace with hash 1131040446, now seen corresponding path program 1 times [2025-03-04 07:02:39,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:02:39,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561752124] [2025-03-04 07:02:39,263 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:02:39,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:02:39,270 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 40 statements into 1 equivalence classes. [2025-03-04 07:02:39,273 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 40 of 40 statements. [2025-03-04 07:02:39,273 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:02:39,273 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:02:39,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-04 07:02:39,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:02:39,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [561752124] [2025-03-04 07:02:39,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [561752124] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:02:39,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:02:39,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:02:39,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257637936] [2025-03-04 07:02:39,284 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:02:39,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:02:39,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:02:39,285 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:02:39,285 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:02:39,301 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1098 out of 1324 [2025-03-04 07:02:39,303 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1124 places, 1237 transitions, 2958 flow. Second operand has 3 states, 3 states have (on average 1098.6666666666667) internal successors, (3296), 3 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2025-03-04 07:02:39,304 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:02:39,304 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1098 of 1324 [2025-03-04 07:02:39,304 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand