./Ultimate.py --spec ../sv-benchmarks/c/properties/no-data-race.prp --file ../sv-benchmarks/c/libvsync/rec_mcslock.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/rec_mcslock.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 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 --- Real Ultimate output --- This is Ultimate 0.3.0-?-798a7b3-m [2025-03-04 07:01:28,736 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-04 07:01:28,787 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2025-03-04 07:01:28,794 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-04 07:01:28,794 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-04 07:01:28,813 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-04 07:01:28,813 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-04 07:01:28,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-04 07:01:28,813 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-04 07:01:28,813 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-04 07:01:28,814 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Use SBE=true [2025-03-04 07:01:28,814 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-04 07:01:28,814 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-04 07:01:28,815 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-03-04 07:01:28,815 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-04 07:01:28,815 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-04 07:01:28,815 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:01:28,816 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-04 07:01:28,816 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-04 07:01:28,816 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 -> 89f4ecf17cdd703d57fdf977621016996b601a0e10c2b1b5ffeae48ee5db4f63 [2025-03-04 07:01:29,041 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-04 07:01:29,046 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-04 07:01:29,048 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-04 07:01:29,049 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-04 07:01:29,049 INFO L274 PluginConnector]: CDTParser initialized [2025-03-04 07:01:29,051 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/rec_mcslock.i [2025-03-04 07:01:30,180 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bcebc5e/0909c7b99f494844a1ab9771994e3479/FLAG526c47d92 [2025-03-04 07:01:30,557 INFO L384 CDTParser]: Found 1 translation units. [2025-03-04 07:01:30,557 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rec_mcslock.i [2025-03-04 07:01:30,591 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bcebc5e/0909c7b99f494844a1ab9771994e3479/FLAG526c47d92 [2025-03-04 07:01:30,743 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/95bcebc5e/0909c7b99f494844a1ab9771994e3479 [2025-03-04 07:01:30,744 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-04 07:01:30,746 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-04 07:01:30,746 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-04 07:01:30,747 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-04 07:01:30,750 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-04 07:01:30,750 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:01:30" (1/1) ... [2025-03-04 07:01:30,751 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a5f9ad1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:30, skipping insertion in model container [2025-03-04 07:01:30,751 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.03 07:01:30" (1/1) ... [2025-03-04 07:01:30,810 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-04 07:01:32,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:01:32,913 INFO L200 MainTranslator]: Completed pre-run [2025-03-04 07:01:32,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-04 07:01:32,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-04 07:01:32,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-04 07:01:32,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-04 07:01:32,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-04 07:01:32,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-04 07:01:32,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-04 07:01:32,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-04 07:01:32,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-04 07:01:32,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-04 07:01:32,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-04 07:01:32,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-04 07:01:32,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-04 07:01:32,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-04 07:01:32,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-04 07:01:32,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-04 07:01:32,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-04 07:01:32,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-04 07:01:32,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-04 07:01:32,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-04 07:01:32,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-04 07:01:32,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-04 07:01:32,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-04 07:01:32,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-04 07:01:32,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-04 07:01:32,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-04 07:01:32,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-04 07:01:32,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-04 07:01:32,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-04 07:01:32,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-04 07:01:32,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-04 07:01:32,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-04 07:01:32,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-04 07:01:32,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-04 07:01:32,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-04 07:01:32,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-04 07:01:32,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-04 07:01:32,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-04 07:01:32,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-04 07:01:33,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-04 07:01:33,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-04 07:01:33,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-04 07:01:33,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-04 07:01:33,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-04 07:01:33,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-04 07:01:33,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-04 07:01:33,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-04 07:01:33,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-04 07:01:33,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-04 07:01:33,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-04 07:01:33,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-04 07:01:33,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-04 07:01:33,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-04 07:01:33,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-04 07:01:33,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-04 07:01:33,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-04 07:01:33,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-04 07:01:33,007 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-04 07:01:33,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-04 07:01:33,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-04 07:01:33,008 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-04 07:01:33,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-04 07:01:33,009 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-04 07:01:33,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-04 07:01:33,010 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-04 07:01:33,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-04 07:01:33,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-04 07:01:33,011 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-04 07:01:33,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-04 07:01:33,012 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-04 07:01:33,013 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-04 07:01:33,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-04 07:01:33,014 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-04 07:01:33,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-04 07:01:33,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-04 07:01:33,015 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-04 07:01:33,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-04 07:01:33,016 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-04 07:01:33,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-04 07:01:33,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-04 07:01:33,017 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-04 07:01:33,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-04 07:01:33,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-04 07:01:33,018 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-04 07:01:33,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-04 07:01:33,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-04 07:01:33,019 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-04 07:01:33,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-04 07:01:33,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-04 07:01:33,020 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-04 07:01:33,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-04 07:01:33,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-04 07:01:33,021 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-04 07:01:33,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-04 07:01:33,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-04 07:01:33,022 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-04 07:01:33,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-04 07:01:33,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-04 07:01:33,023 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-04 07:01:33,024 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-04 07:01:33,105 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-04 07:01:33,297 INFO L204 MainTranslator]: Completed translation [2025-03-04 07:01:33,298 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33 WrapperNode [2025-03-04 07:01:33,298 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-04 07:01:33,299 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-04 07:01:33,300 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-04 07:01:33,300 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-04 07:01:33,304 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,347 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,404 INFO L138 Inliner]: procedures = 924, calls = 955, calls flagged for inlining = 838, calls inlined = 56, statements flattened = 621 [2025-03-04 07:01:33,404 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-04 07:01:33,405 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-04 07:01:33,405 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-04 07:01:33,405 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-04 07:01:33,413 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,413 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,438 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,440 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,443 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,445 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,453 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-04 07:01:33,453 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-04 07:01:33,453 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-04 07:01:33,453 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-04 07:01:33,454 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (1/1) ... [2025-03-04 07:01:33,461 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-04 07:01:33,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-04 07:01:33,482 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 07:01:33,484 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 07:01:33,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-04 07:01:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure run [2025-03-04 07:01:33,504 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-04 07:01:33,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2025-03-04 07:01:33,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-03-04 07:01:33,506 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 07:01:33,651 INFO L256 CfgBuilder]: Building ICFG [2025-03-04 07:01:33,653 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-04 07:01:33,845 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6033: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-04 07:01:33,847 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L6033-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-04 07:01:34,371 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L1885: havoc vatomic32_read_rlx_#t~ret112#1; [2025-03-04 07:01:34,372 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L2285: havoc vatomic32_await_eq_acq_#t~ret174#1; [2025-03-04 07:01:34,372 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3710: havoc vatomicptr_await_neq_rlx_#t~ret421#1.base, vatomicptr_await_neq_rlx_#t~ret421#1.offset; [2025-03-04 07:01:34,372 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3655: havoc vatomicptr_read_rlx_#t~ret412#1.base, vatomicptr_read_rlx_#t~ret412#1.offset; [2025-03-04 07:01:34,372 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3660: havoc vatomicptr_read_acq_#t~ret413#1.base, vatomicptr_read_acq_#t~ret413#1.offset; [2025-03-04 07:01:34,372 INFO L1325 $ProcedureCfgBuilder]: dead code at ProgramPoint L3700: havoc vatomicptr_cmpxchg_rel_#t~ret419#1.base, vatomicptr_cmpxchg_rel_#t~ret419#1.offset; [2025-03-04 07:01:34,373 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-04 07:01:34,373 INFO L307 CfgBuilder]: Performing block encoding [2025-03-04 07:01:34,493 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-04 07:01:34,496 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-04 07:01:34,496 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:01:34 BoogieIcfgContainer [2025-03-04 07:01:34,497 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-04 07:01:34,498 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-04 07:01:34,498 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-04 07:01:34,501 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-04 07:01:34,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.03 07:01:30" (1/3) ... [2025-03-04 07:01:34,502 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5702e66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:01:34, skipping insertion in model container [2025-03-04 07:01:34,502 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.03 07:01:33" (2/3) ... [2025-03-04 07:01:34,503 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5702e66d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.03 07:01:34, skipping insertion in model container [2025-03-04 07:01:34,503 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 04.03 07:01:34" (3/3) ... [2025-03-04 07:01:34,504 INFO L128 eAbstractionObserver]: Analyzing ICFG rec_mcslock.i [2025-03-04 07:01:34,515 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-04 07:01:34,516 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rec_mcslock.i that has 2 procedures, 617 locations, 1 initial locations, 21 loop locations, and 29 error locations. [2025-03-04 07:01:34,517 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-04 07:01:34,698 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-03-04 07:01:34,737 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 620 places, 702 transitions, 1411 flow [2025-03-04 07:01:34,892 INFO L124 PetriNetUnfolderBase]: 99/778 cut-off events. [2025-03-04 07:01:34,894 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2025-03-04 07:01:34,912 INFO L83 FinitePrefix]: Finished finitePrefix Result has 783 conditions, 778 events. 99/778 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 2105 event pairs, 0 based on Foata normal form. 0/642 useless extension candidates. Maximal degree in co-relation 653. Up to 8 conditions per place. [2025-03-04 07:01:34,912 INFO L82 GeneralOperation]: Start removeDead. Operand has 620 places, 702 transitions, 1411 flow [2025-03-04 07:01:34,923 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 620 places, 702 transitions, 1411 flow [2025-03-04 07:01:34,928 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:01:34,936 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;@69dcfd7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:01:34,936 INFO L334 AbstractCegarLoop]: Starting to check reachability of 54 error locations. [2025-03-04 07:01:34,948 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 07:01:34,948 INFO L124 PetriNetUnfolderBase]: 12/69 cut-off events. [2025-03-04 07:01:34,949 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 07:01:34,949 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:34,950 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:34,950 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-04 07:01:34,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:34,955 INFO L85 PathProgramCache]: Analyzing trace with hash -545068934, now seen corresponding path program 1 times [2025-03-04 07:01:34,961 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:34,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106838499] [2025-03-04 07:01:34,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:34,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:35,045 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 07:01:35,062 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 07:01:35,062 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:35,062 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:35,164 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 07:01:35,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:35,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106838499] [2025-03-04 07:01:35,166 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106838499] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:35,166 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:35,166 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:35,169 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378710641] [2025-03-04 07:01:35,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:35,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 07:01:35,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:35,198 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 07:01:35,198 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:01:35,206 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 600 out of 702 [2025-03-04 07:01:35,211 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 620 places, 702 transitions, 1411 flow. Second operand has 2 states, 2 states have (on average 600.5) internal successors, (1201), 2 states have internal predecessors, (1201), 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 07:01:35,211 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:35,212 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 600 of 702 [2025-03-04 07:01:35,214 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:35,466 INFO L124 PetriNetUnfolderBase]: 13/667 cut-off events. [2025-03-04 07:01:35,466 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-04 07:01:35,470 INFO L83 FinitePrefix]: Finished finitePrefix Result has 688 conditions, 667 events. 13/667 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 1780 event pairs, 0 based on Foata normal form. 197/824 useless extension candidates. Maximal degree in co-relation 579. Up to 16 conditions per place. [2025-03-04 07:01:35,474 INFO L140 encePairwiseOnDemand]: 615/702 looper letters, 15 selfloop transitions, 0 changer transitions 0/609 dead transitions. [2025-03-04 07:01:35,475 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 600 places, 609 transitions, 1255 flow [2025-03-04 07:01:35,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 07:01:35,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 07:01:35,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 1302 transitions. [2025-03-04 07:01:35,488 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.9273504273504274 [2025-03-04 07:01:35,489 INFO L175 Difference]: Start difference. First operand has 620 places, 702 transitions, 1411 flow. Second operand 2 states and 1302 transitions. [2025-03-04 07:01:35,490 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 600 places, 609 transitions, 1255 flow [2025-03-04 07:01:35,497 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 600 places, 609 transitions, 1255 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:01:35,506 INFO L231 Difference]: Finished difference. Result has 600 places, 609 transitions, 1225 flow [2025-03-04 07:01:35,508 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=702, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=599, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=609, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=1225, PETRI_PLACES=600, PETRI_TRANSITIONS=609} [2025-03-04 07:01:35,511 INFO L279 CegarLoopForPetriNet]: 620 programPoint places, -20 predicate places. [2025-03-04 07:01:35,511 INFO L471 AbstractCegarLoop]: Abstraction has has 600 places, 609 transitions, 1225 flow [2025-03-04 07:01:35,512 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 600.5) internal successors, (1201), 2 states have internal predecessors, (1201), 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 07:01:35,512 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:35,512 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:35,512 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-04 07:01:35,513 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-04 07:01:35,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:35,513 INFO L85 PathProgramCache]: Analyzing trace with hash -906713158, now seen corresponding path program 1 times [2025-03-04 07:01:35,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:35,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [714844893] [2025-03-04 07:01:35,513 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:35,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:35,526 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 07:01:35,554 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 07:01:35,554 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:35,554 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:36,447 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 07:01:36,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:36,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [714844893] [2025-03-04 07:01:36,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [714844893] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:36,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:36,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:01:36,447 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231429895] [2025-03-04 07:01:36,447 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:36,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:01:36,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:36,448 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:01:36,449 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:01:36,748 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 561 out of 702 [2025-03-04 07:01:36,751 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 600 places, 609 transitions, 1225 flow. Second operand has 6 states, 6 states have (on average 562.5) internal successors, (3375), 6 states have internal predecessors, (3375), 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 07:01:36,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:36,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 561 of 702 [2025-03-04 07:01:36,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:37,991 INFO L124 PetriNetUnfolderBase]: 837/8112 cut-off events. [2025-03-04 07:01:37,991 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 07:01:38,007 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9572 conditions, 8112 events. 837/8112 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 83394 event pairs, 328 based on Foata normal form. 0/7537 useless extension candidates. Maximal degree in co-relation 9568. Up to 1244 conditions per place. [2025-03-04 07:01:38,028 INFO L140 encePairwiseOnDemand]: 662/702 looper letters, 53 selfloop transitions, 138 changer transitions 0/746 dead transitions. [2025-03-04 07:01:38,028 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 605 places, 746 transitions, 1881 flow [2025-03-04 07:01:38,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-03-04 07:01:38,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2025-03-04 07:01:38,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 3558 transitions. [2025-03-04 07:01:38,039 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8447293447293447 [2025-03-04 07:01:38,039 INFO L175 Difference]: Start difference. First operand has 600 places, 609 transitions, 1225 flow. Second operand 6 states and 3558 transitions. [2025-03-04 07:01:38,039 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 605 places, 746 transitions, 1881 flow [2025-03-04 07:01:38,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 605 places, 746 transitions, 1881 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:01:38,054 INFO L231 Difference]: Finished difference. Result has 610 places, 746 transitions, 2129 flow [2025-03-04 07:01:38,055 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=702, PETRI_DIFFERENCE_MINUEND_FLOW=1225, PETRI_DIFFERENCE_MINUEND_PLACES=600, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=609, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=570, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2129, PETRI_PLACES=610, PETRI_TRANSITIONS=746} [2025-03-04 07:01:38,056 INFO L279 CegarLoopForPetriNet]: 620 programPoint places, -10 predicate places. [2025-03-04 07:01:38,056 INFO L471 AbstractCegarLoop]: Abstraction has has 610 places, 746 transitions, 2129 flow [2025-03-04 07:01:38,058 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 562.5) internal successors, (3375), 6 states have internal predecessors, (3375), 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 07:01:38,058 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:38,058 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:38,058 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-04 07:01:38,058 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-04 07:01:38,059 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:38,059 INFO L85 PathProgramCache]: Analyzing trace with hash -2005734773, now seen corresponding path program 1 times [2025-03-04 07:01:38,059 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:38,059 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1115947601] [2025-03-04 07:01:38,059 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:38,059 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:38,069 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 51 statements into 1 equivalence classes. [2025-03-04 07:01:38,073 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 51 of 51 statements. [2025-03-04 07:01:38,073 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:38,073 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:38,093 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 07:01:38,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:38,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1115947601] [2025-03-04 07:01:38,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1115947601] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:38,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:38,093 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:38,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128723285] [2025-03-04 07:01:38,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:38,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:38,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:38,094 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:38,094 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:38,107 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 590 out of 702 [2025-03-04 07:01:38,109 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 746 transitions, 2129 flow. Second operand has 3 states, 3 states have (on average 590.6666666666666) internal successors, (1772), 3 states have internal predecessors, (1772), 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 07:01:38,109 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:38,109 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 590 of 702 [2025-03-04 07:01:38,109 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:38,876 INFO L124 PetriNetUnfolderBase]: 551/6820 cut-off events. [2025-03-04 07:01:38,877 INFO L125 PetriNetUnfolderBase]: For 682/973 co-relation queries the response was YES. [2025-03-04 07:01:38,891 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8585 conditions, 6820 events. 551/6820 cut-off events. For 682/973 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 60931 event pairs, 53 based on Foata normal form. 31/6440 useless extension candidates. Maximal degree in co-relation 8576. Up to 634 conditions per place. [2025-03-04 07:01:38,908 INFO L140 encePairwiseOnDemand]: 693/702 looper letters, 88 selfloop transitions, 6 changer transitions 0/763 dead transitions. [2025-03-04 07:01:38,908 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 763 transitions, 2377 flow [2025-03-04 07:01:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:38,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:38,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1815 transitions. [2025-03-04 07:01:38,911 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8618233618233618 [2025-03-04 07:01:38,911 INFO L175 Difference]: Start difference. First operand has 610 places, 746 transitions, 2129 flow. Second operand 3 states and 1815 transitions. [2025-03-04 07:01:38,912 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 763 transitions, 2377 flow [2025-03-04 07:01:38,921 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 611 places, 763 transitions, 2377 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:01:38,927 INFO L231 Difference]: Finished difference. Result has 613 places, 750 transitions, 2175 flow [2025-03-04 07:01:38,928 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=702, PETRI_DIFFERENCE_MINUEND_FLOW=2127, PETRI_DIFFERENCE_MINUEND_PLACES=609, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=745, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=739, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2175, PETRI_PLACES=613, PETRI_TRANSITIONS=750} [2025-03-04 07:01:38,929 INFO L279 CegarLoopForPetriNet]: 620 programPoint places, -7 predicate places. [2025-03-04 07:01:38,929 INFO L471 AbstractCegarLoop]: Abstraction has has 613 places, 750 transitions, 2175 flow [2025-03-04 07:01:38,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 590.6666666666666) internal successors, (1772), 3 states have internal predecessors, (1772), 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 07:01:38,930 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:38,930 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:38,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-04 07:01:38,930 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-04 07:01:38,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:38,931 INFO L85 PathProgramCache]: Analyzing trace with hash 929234110, now seen corresponding path program 1 times [2025-03-04 07:01:38,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:38,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199275447] [2025-03-04 07:01:38,932 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:38,932 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:38,939 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 53 statements into 1 equivalence classes. [2025-03-04 07:01:38,941 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 53 of 53 statements. [2025-03-04 07:01:38,941 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:38,941 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:38,955 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 07:01:38,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:38,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199275447] [2025-03-04 07:01:38,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199275447] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:38,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:38,956 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:38,956 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1389321882] [2025-03-04 07:01:38,956 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:38,956 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:38,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:38,956 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:38,956 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:38,970 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 593 out of 702 [2025-03-04 07:01:38,972 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 613 places, 750 transitions, 2175 flow. Second operand has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 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 07:01:38,972 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:38,973 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 593 of 702 [2025-03-04 07:01:38,973 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:40,001 INFO L124 PetriNetUnfolderBase]: 618/9077 cut-off events. [2025-03-04 07:01:40,001 INFO L125 PetriNetUnfolderBase]: For 783/980 co-relation queries the response was YES. [2025-03-04 07:01:40,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11199 conditions, 9077 events. 618/9077 cut-off events. For 783/980 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 85976 event pairs, 50 based on Foata normal form. 27/8615 useless extension candidates. Maximal degree in co-relation 11188. Up to 772 conditions per place. [2025-03-04 07:01:40,048 INFO L140 encePairwiseOnDemand]: 696/702 looper letters, 85 selfloop transitions, 4 changer transitions 0/765 dead transitions. [2025-03-04 07:01:40,048 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 614 places, 765 transitions, 2409 flow [2025-03-04 07:01:40,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:40,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:40,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1818 transitions. [2025-03-04 07:01:40,052 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8632478632478633 [2025-03-04 07:01:40,052 INFO L175 Difference]: Start difference. First operand has 613 places, 750 transitions, 2175 flow. Second operand 3 states and 1818 transitions. [2025-03-04 07:01:40,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 614 places, 765 transitions, 2409 flow [2025-03-04 07:01:40,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 765 transitions, 2397 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:40,068 INFO L231 Difference]: Finished difference. Result has 614 places, 752 transitions, 2191 flow [2025-03-04 07:01:40,069 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=702, PETRI_DIFFERENCE_MINUEND_FLOW=2161, PETRI_DIFFERENCE_MINUEND_PLACES=610, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=749, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=745, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2191, PETRI_PLACES=614, PETRI_TRANSITIONS=752} [2025-03-04 07:01:40,069 INFO L279 CegarLoopForPetriNet]: 620 programPoint places, -6 predicate places. [2025-03-04 07:01:40,069 INFO L471 AbstractCegarLoop]: Abstraction has has 614 places, 752 transitions, 2191 flow [2025-03-04 07:01:40,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 593.6666666666666) internal successors, (1781), 3 states have internal predecessors, (1781), 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 07:01:40,070 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:40,070 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:40,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-04 07:01:40,071 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-04 07:01:40,071 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:40,071 INFO L85 PathProgramCache]: Analyzing trace with hash 1211232138, now seen corresponding path program 1 times [2025-03-04 07:01:40,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:40,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687732071] [2025-03-04 07:01:40,072 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:40,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:40,081 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 54 statements into 1 equivalence classes. [2025-03-04 07:01:40,086 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 54 of 54 statements. [2025-03-04 07:01:40,086 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:40,087 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:40,133 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 07:01:40,134 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:40,134 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687732071] [2025-03-04 07:01:40,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687732071] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:40,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:40,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-03-04 07:01:40,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376057796] [2025-03-04 07:01:40,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:40,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-04 07:01:40,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:40,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-04 07:01:40,135 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-04 07:01:40,157 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 594 out of 702 [2025-03-04 07:01:40,159 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 614 places, 752 transitions, 2191 flow. Second operand has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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 07:01:40,159 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:40,159 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 594 of 702 [2025-03-04 07:01:40,159 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:41,306 INFO L124 PetriNetUnfolderBase]: 581/8994 cut-off events. [2025-03-04 07:01:41,306 INFO L125 PetriNetUnfolderBase]: For 778/1221 co-relation queries the response was YES. [2025-03-04 07:01:41,324 INFO L83 FinitePrefix]: Finished finitePrefix Result has 11120 conditions, 8994 events. 581/8994 cut-off events. For 778/1221 co-relation queries the response was YES. Maximal size of possible extension queue 84. Compared 86301 event pairs, 38 based on Foata normal form. 53/8579 useless extension candidates. Maximal degree in co-relation 11108. Up to 760 conditions per place. [2025-03-04 07:01:41,336 INFO L140 encePairwiseOnDemand]: 699/702 looper letters, 85 selfloop transitions, 2 changer transitions 0/766 dead transitions. [2025-03-04 07:01:41,336 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 616 places, 766 transitions, 2423 flow [2025-03-04 07:01:41,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-04 07:01:41,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-04 07:01:41,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1817 transitions. [2025-03-04 07:01:41,339 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.8627730294396961 [2025-03-04 07:01:41,340 INFO L175 Difference]: Start difference. First operand has 614 places, 752 transitions, 2191 flow. Second operand 3 states and 1817 transitions. [2025-03-04 07:01:41,340 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 616 places, 766 transitions, 2423 flow [2025-03-04 07:01:41,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 614 places, 766 transitions, 2415 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-04 07:01:41,351 INFO L231 Difference]: Finished difference. Result has 615 places, 752 transitions, 2191 flow [2025-03-04 07:01:41,351 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=702, PETRI_DIFFERENCE_MINUEND_FLOW=2183, PETRI_DIFFERENCE_MINUEND_PLACES=612, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=752, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=750, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=2191, PETRI_PLACES=615, PETRI_TRANSITIONS=752} [2025-03-04 07:01:41,352 INFO L279 CegarLoopForPetriNet]: 620 programPoint places, -5 predicate places. [2025-03-04 07:01:41,352 INFO L471 AbstractCegarLoop]: Abstraction has has 615 places, 752 transitions, 2191 flow [2025-03-04 07:01:41,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 595.3333333333334) internal successors, (1786), 3 states have internal predecessors, (1786), 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 07:01:41,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:41,353 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:41,353 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2025-03-04 07:01:41,354 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 51 more)] === [2025-03-04 07:01:41,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:41,354 INFO L85 PathProgramCache]: Analyzing trace with hash 795694442, now seen corresponding path program 1 times [2025-03-04 07:01:41,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:41,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232862315] [2025-03-04 07:01:41,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:41,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:41,370 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 07:01:41,386 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 07:01:41,386 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:41,387 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:01:41,387 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-04 07:01:41,392 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 64 statements into 1 equivalence classes. [2025-03-04 07:01:41,403 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 64 of 64 statements. [2025-03-04 07:01:41,404 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:41,404 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-04 07:01:41,432 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-04 07:01:41,432 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-04 07:01:41,433 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (53 of 54 remaining) [2025-03-04 07:01:41,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (52 of 54 remaining) [2025-03-04 07:01:41,434 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (51 of 54 remaining) [2025-03-04 07:01:41,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (50 of 54 remaining) [2025-03-04 07:01:41,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (49 of 54 remaining) [2025-03-04 07:01:41,435 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (48 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (47 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (46 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (45 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (44 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (43 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (42 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (41 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (40 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (39 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (38 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (37 of 54 remaining) [2025-03-04 07:01:41,437 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (36 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (35 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (34 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (33 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (32 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (31 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (30 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (29 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (28 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (27 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (26 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (25 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (24 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23ASSERT_VIOLATIONDATA_RACE (23 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9ASSERT_VIOLATIONDATA_RACE (22 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8ASSERT_VIOLATIONDATA_RACE (21 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6ASSERT_VIOLATIONDATA_RACE (20 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22ASSERT_VIOLATIONDATA_RACE (19 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7ASSERT_VIOLATIONDATA_RACE (18 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21ASSERT_VIOLATIONDATA_RACE (17 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20ASSERT_VIOLATIONDATA_RACE (16 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5ASSERT_VIOLATIONDATA_RACE (15 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONDATA_RACE (14 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONDATA_RACE (13 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19ASSERT_VIOLATIONDATA_RACE (12 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11ASSERT_VIOLATIONDATA_RACE (11 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10ASSERT_VIOLATIONDATA_RACE (10 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18ASSERT_VIOLATIONDATA_RACE (9 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17ASSERT_VIOLATIONDATA_RACE (8 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONDATA_RACE (7 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4ASSERT_VIOLATIONDATA_RACE (6 of 54 remaining) [2025-03-04 07:01:41,438 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3ASSERT_VIOLATIONDATA_RACE (5 of 54 remaining) [2025-03-04 07:01:41,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16ASSERT_VIOLATIONDATA_RACE (4 of 54 remaining) [2025-03-04 07:01:41,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONDATA_RACE (3 of 54 remaining) [2025-03-04 07:01:41,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONDATA_RACE (2 of 54 remaining) [2025-03-04 07:01:41,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15ASSERT_VIOLATIONDATA_RACE (1 of 54 remaining) [2025-03-04 07:01:41,439 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2ASSERT_VIOLATIONDATA_RACE (0 of 54 remaining) [2025-03-04 07:01:41,439 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-03-04 07:01:41,439 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2025-03-04 07:01:41,443 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-04 07:01:41,444 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-04 07:01:41,607 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-04 07:01:41,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 1130 places, 1275 transitions, 2566 flow [2025-03-04 07:01:41,925 INFO L124 PetriNetUnfolderBase]: 187/1491 cut-off events. [2025-03-04 07:01:41,926 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2025-03-04 07:01:41,987 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1503 conditions, 1491 events. 187/1491 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 6415 event pairs, 0 based on Foata normal form. 0/1233 useless extension candidates. Maximal degree in co-relation 1278. Up to 12 conditions per place. [2025-03-04 07:01:41,987 INFO L82 GeneralOperation]: Start removeDead. Operand has 1130 places, 1275 transitions, 2566 flow [2025-03-04 07:01:42,111 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 1130 places, 1275 transitions, 2566 flow [2025-03-04 07:01:42,112 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-04 07:01:42,113 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;@69dcfd7b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-04 07:01:42,113 INFO L334 AbstractCegarLoop]: Starting to check reachability of 78 error locations. [2025-03-04 07:01:42,118 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-04 07:01:42,118 INFO L124 PetriNetUnfolderBase]: 12/69 cut-off events. [2025-03-04 07:01:42,118 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-04 07:01:42,118 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:42,119 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:42,119 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2025-03-04 07:01:42,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:42,119 INFO L85 PathProgramCache]: Analyzing trace with hash 187904698, now seen corresponding path program 1 times [2025-03-04 07:01:42,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:42,119 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12319598] [2025-03-04 07:01:42,119 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:42,119 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:42,130 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 44 statements into 1 equivalence classes. [2025-03-04 07:01:42,133 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 44 of 44 statements. [2025-03-04 07:01:42,134 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:42,134 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:42,147 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 07:01:42,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:42,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12319598] [2025-03-04 07:01:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12319598] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:42,148 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:42,148 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-04 07:01:42,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704368593] [2025-03-04 07:01:42,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:42,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-04 07:01:42,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:42,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-04 07:01:42,150 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-04 07:01:42,151 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1091 out of 1275 [2025-03-04 07:01:42,153 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1130 places, 1275 transitions, 2566 flow. Second operand has 2 states, 2 states have (on average 1091.5) internal successors, (2183), 2 states have internal predecessors, (2183), 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 07:01:42,153 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:42,153 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1091 of 1275 [2025-03-04 07:01:42,154 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-04 07:01:44,103 INFO L124 PetriNetUnfolderBase]: 391/9939 cut-off events. [2025-03-04 07:01:44,103 INFO L125 PetriNetUnfolderBase]: For 147/147 co-relation queries the response was YES. [2025-03-04 07:01:44,198 INFO L83 FinitePrefix]: Finished finitePrefix Result has 10465 conditions, 9939 events. 391/9939 cut-off events. For 147/147 co-relation queries the response was YES. Maximal size of possible extension queue 109. Compared 103982 event pairs, 208 based on Foata normal form. 3424/12687 useless extension candidates. Maximal degree in co-relation 1379. Up to 449 conditions per place. [2025-03-04 07:01:44,232 INFO L140 encePairwiseOnDemand]: 1121/1275 looper letters, 30 selfloop transitions, 0 changer transitions 0/1113 dead transitions. [2025-03-04 07:01:44,233 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1093 places, 1113 transitions, 2302 flow [2025-03-04 07:01:44,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-04 07:01:44,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-04 07:01:44,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 2366 transitions. [2025-03-04 07:01:44,237 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.927843137254902 [2025-03-04 07:01:44,237 INFO L175 Difference]: Start difference. First operand has 1130 places, 1275 transitions, 2566 flow. Second operand 2 states and 2366 transitions. [2025-03-04 07:01:44,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1093 places, 1113 transitions, 2302 flow [2025-03-04 07:01:44,242 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1093 places, 1113 transitions, 2302 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-04 07:01:44,251 INFO L231 Difference]: Finished difference. Result has 1093 places, 1113 transitions, 2242 flow [2025-03-04 07:01:44,252 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=1275, PETRI_DIFFERENCE_MINUEND_FLOW=2242, PETRI_DIFFERENCE_MINUEND_PLACES=1092, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=2242, PETRI_PLACES=1093, PETRI_TRANSITIONS=1113} [2025-03-04 07:01:44,253 INFO L279 CegarLoopForPetriNet]: 1130 programPoint places, -37 predicate places. [2025-03-04 07:01:44,253 INFO L471 AbstractCegarLoop]: Abstraction has has 1093 places, 1113 transitions, 2242 flow [2025-03-04 07:01:44,254 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1091.5) internal successors, (2183), 2 states have internal predecessors, (2183), 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 07:01:44,254 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-04 07:01:44,254 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-04 07:01:44,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-03-04 07:01:44,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 75 more)] === [2025-03-04 07:01:44,255 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-04 07:01:44,255 INFO L85 PathProgramCache]: Analyzing trace with hash -893648550, now seen corresponding path program 1 times [2025-03-04 07:01:44,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-04 07:01:44,255 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984176395] [2025-03-04 07:01:44,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-04 07:01:44,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-04 07:01:44,264 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 46 statements into 1 equivalence classes. [2025-03-04 07:01:44,268 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 46 of 46 statements. [2025-03-04 07:01:44,269 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-04 07:01:44,269 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-04 07:01:44,782 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 07:01:44,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-04 07:01:44,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984176395] [2025-03-04 07:01:44,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984176395] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-04 07:01:44,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-04 07:01:44,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2025-03-04 07:01:44,783 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330346125] [2025-03-04 07:01:44,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-04 07:01:44,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2025-03-04 07:01:44,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-04 07:01:44,784 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2025-03-04 07:01:44,784 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2025-03-04 07:01:45,145 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 1032 out of 1275 [2025-03-04 07:01:45,156 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1093 places, 1113 transitions, 2242 flow. Second operand has 6 states, 6 states have (on average 1033.5) internal successors, (6201), 6 states have internal predecessors, (6201), 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 07:01:45,156 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-04 07:01:45,156 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 1032 of 1275 [2025-03-04 07:01:45,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand