./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/libvsync/rwlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version e2fb8bed Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/libvsync/rwlock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fd8ac353802a2e1d548b78214c4e90430a3b2551f535af0ed9cab2c49366d321 --- Real Ultimate output --- This is Ultimate 0.3.0-?-e2fb8be-m [2025-03-09 01:32:12,537 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-03-09 01:32:12,589 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2025-03-09 01:32:12,592 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-03-09 01:32:12,592 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-03-09 01:32:12,614 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-03-09 01:32:12,614 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-03-09 01:32:12,614 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-03-09 01:32:12,614 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2025-03-09 01:32:12,614 INFO L153 SettingsManager]: * Use memory slicer=true [2025-03-09 01:32:12,614 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-03-09 01:32:12,614 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-03-09 01:32:12,615 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * Use SBE=true [2025-03-09 01:32:12,615 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * sizeof long=4 [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-03-09 01:32:12,615 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2025-03-09 01:32:12,617 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2025-03-09 01:32:12,617 INFO L153 SettingsManager]: * sizeof long double=12 [2025-03-09 01:32:12,617 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-03-09 01:32:12,617 INFO L153 SettingsManager]: * Use constant arrays=true [2025-03-09 01:32:12,617 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-03-09 01:32:12,617 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-03-09 01:32:12,617 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-03-09 01:32:12,617 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:32:12,618 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2025-03-09 01:32:12,618 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2025-03-09 01:32:12,618 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 valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) 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 -> fd8ac353802a2e1d548b78214c4e90430a3b2551f535af0ed9cab2c49366d321 [2025-03-09 01:32:12,828 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-03-09 01:32:12,836 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-03-09 01:32:12,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-03-09 01:32:12,840 INFO L270 PluginConnector]: Initializing CDTParser... [2025-03-09 01:32:12,840 INFO L274 PluginConnector]: CDTParser initialized [2025-03-09 01:32:12,841 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/rwlock.i [2025-03-09 01:32:13,908 INFO L533 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab19d560/6303cada229640528fef6fc70487415c/FLAG0259f7e63 [2025-03-09 01:32:14,378 INFO L384 CDTParser]: Found 1 translation units. [2025-03-09 01:32:14,380 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/rwlock.i [2025-03-09 01:32:14,418 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab19d560/6303cada229640528fef6fc70487415c/FLAG0259f7e63 [2025-03-09 01:32:14,431 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ab19d560/6303cada229640528fef6fc70487415c [2025-03-09 01:32:14,433 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-03-09 01:32:14,435 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-03-09 01:32:14,436 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-03-09 01:32:14,436 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-03-09 01:32:14,439 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-03-09 01:32:14,440 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:32:14" (1/1) ... [2025-03-09 01:32:14,441 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62bffb27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:14, skipping insertion in model container [2025-03-09 01:32:14,441 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.03 01:32:14" (1/1) ... [2025-03-09 01:32:14,507 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-03-09 01:32:15,588 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:32:15,592 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:32:15,592 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:32:15,597 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:32:15,597 WARN L1100 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2025-03-09 01:32:15,912 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:32:15,918 INFO L200 MainTranslator]: Completed pre-run [2025-03-09 01:32:15,973 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2025-03-09 01:32:15,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2025-03-09 01:32:15,975 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2025-03-09 01:32:15,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2025-03-09 01:32:15,979 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2025-03-09 01:32:15,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2025-03-09 01:32:15,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2025-03-09 01:32:15,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2025-03-09 01:32:15,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2025-03-09 01:32:15,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2025-03-09 01:32:15,980 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2025-03-09 01:32:15,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2025-03-09 01:32:15,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2025-03-09 01:32:15,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2025-03-09 01:32:15,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2025-03-09 01:32:15,981 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2025-03-09 01:32:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2025-03-09 01:32:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2025-03-09 01:32:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2025-03-09 01:32:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2025-03-09 01:32:15,982 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2025-03-09 01:32:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2025-03-09 01:32:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2025-03-09 01:32:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2025-03-09 01:32:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2025-03-09 01:32:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2025-03-09 01:32:15,983 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2025-03-09 01:32:15,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2025-03-09 01:32:15,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2025-03-09 01:32:15,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2025-03-09 01:32:15,984 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2025-03-09 01:32:15,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2025-03-09 01:32:15,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2025-03-09 01:32:15,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2025-03-09 01:32:15,985 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2025-03-09 01:32:15,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2025-03-09 01:32:15,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2025-03-09 01:32:15,986 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2025-03-09 01:32:15,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2025-03-09 01:32:15,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2025-03-09 01:32:15,987 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2025-03-09 01:32:15,988 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2025-03-09 01:32:15,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2025-03-09 01:32:15,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2025-03-09 01:32:15,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2025-03-09 01:32:15,989 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2025-03-09 01:32:15,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2025-03-09 01:32:15,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2025-03-09 01:32:15,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2025-03-09 01:32:15,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2025-03-09 01:32:15,990 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2025-03-09 01:32:15,991 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2025-03-09 01:32:15,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2025-03-09 01:32:15,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2025-03-09 01:32:15,992 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2025-03-09 01:32:15,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2025-03-09 01:32:15,993 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2025-03-09 01:32:15,994 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2025-03-09 01:32:15,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2025-03-09 01:32:15,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2025-03-09 01:32:15,995 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2025-03-09 01:32:15,996 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2025-03-09 01:32:15,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2025-03-09 01:32:15,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2025-03-09 01:32:15,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2025-03-09 01:32:15,997 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2025-03-09 01:32:15,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2025-03-09 01:32:15,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2025-03-09 01:32:15,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2025-03-09 01:32:15,998 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2025-03-09 01:32:15,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2025-03-09 01:32:15,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2025-03-09 01:32:15,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2025-03-09 01:32:15,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2025-03-09 01:32:15,999 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2025-03-09 01:32:16,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2025-03-09 01:32:16,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2025-03-09 01:32:16,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2025-03-09 01:32:16,000 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2025-03-09 01:32:16,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2025-03-09 01:32:16,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2025-03-09 01:32:16,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2025-03-09 01:32:16,001 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2025-03-09 01:32:16,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2025-03-09 01:32:16,002 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2025-03-09 01:32:16,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2025-03-09 01:32:16,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2025-03-09 01:32:16,003 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2025-03-09 01:32:16,004 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2025-03-09 01:32:16,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2025-03-09 01:32:16,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2025-03-09 01:32:16,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2025-03-09 01:32:16,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2025-03-09 01:32:16,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2025-03-09 01:32:16,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2025-03-09 01:32:16,005 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2025-03-09 01:32:16,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2025-03-09 01:32:16,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2025-03-09 01:32:16,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2025-03-09 01:32:16,006 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2025-03-09 01:32:16,055 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-03-09 01:32:16,231 INFO L204 MainTranslator]: Completed translation [2025-03-09 01:32:16,231 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16 WrapperNode [2025-03-09 01:32:16,231 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-03-09 01:32:16,232 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-03-09 01:32:16,232 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-03-09 01:32:16,232 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-03-09 01:32:16,236 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,281 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,313 INFO L138 Inliner]: procedures = 930, calls = 943, calls flagged for inlining = 835, calls inlined = 70, statements flattened = 637 [2025-03-09 01:32:16,313 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-03-09 01:32:16,314 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-03-09 01:32:16,314 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-03-09 01:32:16,314 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-03-09 01:32:16,324 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,324 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,329 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,352 INFO L175 MemorySlicer]: Split 27 memory accesses to 3 slices as follows [2, 3, 22]. 81 percent of accesses are in the largest equivalence class. The 5 initializations are split as follows [2, 0, 3]. The 8 writes are split as follows [0, 2, 6]. [2025-03-09 01:32:16,352 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,352 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,364 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,366 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,367 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,368 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,373 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-03-09 01:32:16,374 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2025-03-09 01:32:16,374 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2025-03-09 01:32:16,374 INFO L274 PluginConnector]: IcfgBuilder initialized [2025-03-09 01:32:16,375 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (1/1) ... [2025-03-09 01:32:16,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-03-09 01:32:16,394 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2025-03-09 01:32:16,408 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) [2025-03-09 01:32:16,410 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 [2025-03-09 01:32:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2025-03-09 01:32:16,426 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2025-03-09 01:32:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2025-03-09 01:32:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2025-03-09 01:32:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2025-03-09 01:32:16,426 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-03-09 01:32:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2025-03-09 01:32:16,427 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2025-03-09 01:32:16,427 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2025-03-09 01:32:16,428 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-03-09 01:32:16,544 INFO L256 CfgBuilder]: Building ICFG [2025-03-09 01:32:16,545 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2025-03-09 01:32:16,852 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2255: havoc vatomic32_await_eq_rlx_#t~ret168#1; [2025-03-09 01:32:16,852 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-03-09 01:32:16,939 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6076-1: SUMMARY for call ULTIMATE.dealloc(main_~#t~0#1.base, main_~#t~0#1.offset); srcloc: null [2025-03-09 01:32:16,939 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L6076: havoc main_~#t~0#1.base, main_~#t~0#1.offset; [2025-03-09 01:32:17,136 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2570: havoc vatomic32_await_eq_set_rlx_#t~ret231#1; [2025-03-09 01:32:17,137 INFO L1307 $ProcedureCfgBuilder]: dead code at ProgramPoint L2425: havoc vatomic32_await_ge_sub_acq_#t~ret202#1; [2025-03-09 01:32:17,138 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-03-09 01:32:17,138 INFO L307 CfgBuilder]: Performing block encoding [2025-03-09 01:32:17,383 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-03-09 01:32:17,383 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2025-03-09 01:32:17,383 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:32:17 BoogieIcfgContainer [2025-03-09 01:32:17,383 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2025-03-09 01:32:17,385 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-03-09 01:32:17,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-03-09 01:32:17,388 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-03-09 01:32:17,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.03 01:32:14" (1/3) ... [2025-03-09 01:32:17,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727cd082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:32:17, skipping insertion in model container [2025-03-09 01:32:17,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.03 01:32:16" (2/3) ... [2025-03-09 01:32:17,389 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@727cd082 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.03 01:32:17, skipping insertion in model container [2025-03-09 01:32:17,389 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.03 01:32:17" (3/3) ... [2025-03-09 01:32:17,390 INFO L128 eAbstractionObserver]: Analyzing ICFG rwlock.i [2025-03-09 01:32:17,401 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-03-09 01:32:17,403 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rwlock.i that has 3 procedures, 209 locations, 1 initial locations, 36 loop locations, and 48 error locations. [2025-03-09 01:32:17,403 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-03-09 01:32:17,521 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2025-03-09 01:32:17,553 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 215 places, 333 transitions, 680 flow [2025-03-09 01:32:17,672 INFO L124 PetriNetUnfolderBase]: 219/604 cut-off events. [2025-03-09 01:32:17,673 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2025-03-09 01:32:17,684 INFO L83 FinitePrefix]: Finished finitePrefix Result has 617 conditions, 604 events. 219/604 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 3014 event pairs, 0 based on Foata normal form. 0/292 useless extension candidates. Maximal degree in co-relation 365. Up to 16 conditions per place. [2025-03-09 01:32:17,684 INFO L82 GeneralOperation]: Start removeDead. Operand has 215 places, 333 transitions, 680 flow [2025-03-09 01:32:17,697 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 215 places, 333 transitions, 680 flow [2025-03-09 01:32:17,705 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:32:17,713 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=None, 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;@16b786f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:32:17,715 INFO L334 AbstractCegarLoop]: Starting to check reachability of 89 error locations. [2025-03-09 01:32:17,719 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:32:17,719 INFO L124 PetriNetUnfolderBase]: 6/14 cut-off events. [2025-03-09 01:32:17,719 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:32:17,720 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:32:17,720 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 01:32:17,720 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2025-03-09 01:32:17,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:32:17,724 INFO L85 PathProgramCache]: Analyzing trace with hash 1789799543, now seen corresponding path program 1 times [2025-03-09 01:32:17,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:32:17,729 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926122768] [2025-03-09 01:32:17,729 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:32:17,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:32:17,823 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 01:32:17,831 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 01:32:17,831 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:32:17,831 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:32:17,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:32:17,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:32:17,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926122768] [2025-03-09 01:32:17,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926122768] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:32:17,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:32:17,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:32:17,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895307606] [2025-03-09 01:32:17,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:32:17,886 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 01:32:17,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:32:17,906 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 01:32:17,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 01:32:17,908 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 333 [2025-03-09 01:32:17,910 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 333 transitions, 680 flow. Second operand has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 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) [2025-03-09 01:32:17,910 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:32:17,910 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 333 [2025-03-09 01:32:17,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:32:25,527 INFO L124 PetriNetUnfolderBase]: 75658/126867 cut-off events. [2025-03-09 01:32:25,527 INFO L125 PetriNetUnfolderBase]: For 182/182 co-relation queries the response was YES. [2025-03-09 01:32:25,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 239166 conditions, 126867 events. 75658/126867 cut-off events. For 182/182 co-relation queries the response was YES. Maximal size of possible extension queue 2253. Compared 1129801 event pairs, 66633 based on Foata normal form. 47067/145206 useless extension candidates. Maximal degree in co-relation 236253. Up to 112052 conditions per place. [2025-03-09 01:32:26,241 INFO L140 encePairwiseOnDemand]: 215/333 looper letters, 146 selfloop transitions, 0 changer transitions 0/212 dead transitions. [2025-03-09 01:32:26,241 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 212 transitions, 730 flow [2025-03-09 01:32:26,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-03-09 01:32:26,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2025-03-09 01:32:26,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 396 transitions. [2025-03-09 01:32:26,250 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5945945945945946 [2025-03-09 01:32:26,252 INFO L175 Difference]: Start difference. First operand has 215 places, 333 transitions, 680 flow. Second operand 2 states and 396 transitions. [2025-03-09 01:32:26,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 212 transitions, 730 flow [2025-03-09 01:32:26,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 212 transitions, 730 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 01:32:26,269 INFO L231 Difference]: Finished difference. Result has 203 places, 212 transitions, 438 flow [2025-03-09 01:32:26,271 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=438, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=212, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=438, PETRI_PLACES=203, PETRI_TRANSITIONS=212} [2025-03-09 01:32:26,273 INFO L279 CegarLoopForPetriNet]: 215 programPoint places, -12 predicate places. [2025-03-09 01:32:26,273 INFO L471 AbstractCegarLoop]: Abstraction has has 203 places, 212 transitions, 438 flow [2025-03-09 01:32:26,273 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 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) [2025-03-09 01:32:26,273 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:32:26,273 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:32:26,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-03-09 01:32:26,274 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2025-03-09 01:32:26,274 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:32:26,274 INFO L85 PathProgramCache]: Analyzing trace with hash 2077752293, now seen corresponding path program 1 times [2025-03-09 01:32:26,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:32:26,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611127008] [2025-03-09 01:32:26,274 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:32:26,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:32:26,285 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 01:32:26,302 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 01:32:26,302 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:32:26,302 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:32:26,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:32:26,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:32:26,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611127008] [2025-03-09 01:32:26,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611127008] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:32:26,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:32:26,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2025-03-09 01:32:26,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944602510] [2025-03-09 01:32:26,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:32:26,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-03-09 01:32:26,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:32:26,385 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-03-09 01:32:26,385 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-03-09 01:32:26,406 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 60 out of 333 [2025-03-09 01:32:26,406 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 203 places, 212 transitions, 438 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2025-03-09 01:32:26,406 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:32:26,406 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 60 of 333 [2025-03-09 01:32:26,406 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:32:35,404 INFO L124 PetriNetUnfolderBase]: 90249/151429 cut-off events. [2025-03-09 01:32:35,404 INFO L125 PetriNetUnfolderBase]: For 176/176 co-relation queries the response was YES. [2025-03-09 01:32:35,725 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285039 conditions, 151429 events. 90249/151429 cut-off events. For 176/176 co-relation queries the response was YES. Maximal size of possible extension queue 2687. Compared 1380492 event pairs, 66747 based on Foata normal form. 0/118255 useless extension candidates. Maximal degree in co-relation 285034. Up to 112182 conditions per place. [2025-03-09 01:32:36,326 INFO L140 encePairwiseOnDemand]: 328/333 looper letters, 270 selfloop transitions, 2 changer transitions 0/332 dead transitions. [2025-03-09 01:32:36,326 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 202 places, 332 transitions, 1222 flow [2025-03-09 01:32:36,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-03-09 01:32:36,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2025-03-09 01:32:36,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2025-03-09 01:32:36,331 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45545545545545546 [2025-03-09 01:32:36,331 INFO L175 Difference]: Start difference. First operand has 203 places, 212 transitions, 438 flow. Second operand 3 states and 455 transitions. [2025-03-09 01:32:36,331 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 202 places, 332 transitions, 1222 flow [2025-03-09 01:32:36,339 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 332 transitions, 1222 flow, removed 0 selfloop flow, removed 0 redundant places. [2025-03-09 01:32:36,345 INFO L231 Difference]: Finished difference. Result has 202 places, 209 transitions, 436 flow [2025-03-09 01:32:36,345 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=432, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=209, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=436, PETRI_PLACES=202, PETRI_TRANSITIONS=209} [2025-03-09 01:32:36,346 INFO L279 CegarLoopForPetriNet]: 215 programPoint places, -13 predicate places. [2025-03-09 01:32:36,346 INFO L471 AbstractCegarLoop]: Abstraction has has 202 places, 209 transitions, 436 flow [2025-03-09 01:32:36,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 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) [2025-03-09 01:32:36,346 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:32:36,347 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:32:36,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2025-03-09 01:32:36,347 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2025-03-09 01:32:36,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:32:36,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2077752294, now seen corresponding path program 1 times [2025-03-09 01:32:36,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:32:36,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111666428] [2025-03-09 01:32:36,349 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:32:36,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:32:36,362 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 7 statements into 1 equivalence classes. [2025-03-09 01:32:36,388 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 7 of 7 statements. [2025-03-09 01:32:36,389 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:32:36,389 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:32:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:32:36,503 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:32:36,503 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111666428] [2025-03-09 01:32:36,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111666428] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:32:36,503 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:32:36,503 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:32:36,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734247607] [2025-03-09 01:32:36,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:32:36,504 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2025-03-09 01:32:36,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:32:36,504 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2025-03-09 01:32:36,504 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2025-03-09 01:32:36,532 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 333 [2025-03-09 01:32:36,532 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 209 transitions, 436 flow. Second operand has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2025-03-09 01:32:36,533 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:32:36,534 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 333 [2025-03-09 01:32:36,534 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2025-03-09 01:32:44,184 INFO L124 PetriNetUnfolderBase]: 75828/128426 cut-off events. [2025-03-09 01:32:44,184 INFO L125 PetriNetUnfolderBase]: For 3471/3471 co-relation queries the response was YES. [2025-03-09 01:32:44,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 244086 conditions, 128426 events. 75828/128426 cut-off events. For 3471/3471 co-relation queries the response was YES. Maximal size of possible extension queue 2329. Compared 1157473 event pairs, 52904 based on Foata normal form. 63/99940 useless extension candidates. Maximal degree in co-relation 244080. Up to 90742 conditions per place. [2025-03-09 01:32:44,776 INFO L140 encePairwiseOnDemand]: 326/333 looper letters, 333 selfloop transitions, 5 changer transitions 0/400 dead transitions. [2025-03-09 01:32:44,776 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 400 transitions, 1494 flow [2025-03-09 01:32:44,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2025-03-09 01:32:44,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2025-03-09 01:32:44,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 600 transitions. [2025-03-09 01:32:44,778 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45045045045045046 [2025-03-09 01:32:44,778 INFO L175 Difference]: Start difference. First operand has 202 places, 209 transitions, 436 flow. Second operand 4 states and 600 transitions. [2025-03-09 01:32:44,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 400 transitions, 1494 flow [2025-03-09 01:32:44,826 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 400 transitions, 1490 flow, removed 0 selfloop flow, removed 2 redundant places. [2025-03-09 01:32:44,831 INFO L231 Difference]: Finished difference. Result has 204 places, 209 transitions, 454 flow [2025-03-09 01:32:44,831 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=333, PETRI_DIFFERENCE_MINUEND_FLOW=430, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=208, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=454, PETRI_PLACES=204, PETRI_TRANSITIONS=209} [2025-03-09 01:32:44,832 INFO L279 CegarLoopForPetriNet]: 215 programPoint places, -11 predicate places. [2025-03-09 01:32:44,832 INFO L471 AbstractCegarLoop]: Abstraction has has 204 places, 209 transitions, 454 flow [2025-03-09 01:32:44,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 66.25) internal successors, (265), 4 states have internal predecessors, (265), 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) [2025-03-09 01:32:44,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:32:44,832 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2025-03-09 01:32:44,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2025-03-09 01:32:44,833 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 86 more)] === [2025-03-09 01:32:44,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:32:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1614214484, now seen corresponding path program 1 times [2025-03-09 01:32:44,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:32:44,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912667667] [2025-03-09 01:32:44,833 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:32:44,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:32:44,847 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 01:32:44,866 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 01:32:44,867 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:32:44,867 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:32:44,867 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-03-09 01:32:44,877 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 12 statements into 1 equivalence classes. [2025-03-09 01:32:44,889 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 12 of 12 statements. [2025-03-09 01:32:44,889 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:32:44,889 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-03-09 01:32:44,912 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-03-09 01:32:44,912 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-03-09 01:32:44,913 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (88 of 89 remaining) [2025-03-09 01:32:44,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (87 of 89 remaining) [2025-03-09 01:32:44,916 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (86 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (81 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONMEMORY_LEAK (77 of 89 remaining) [2025-03-09 01:32:44,917 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONMEMORY_LEAK (66 of 89 remaining) [2025-03-09 01:32:44,918 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONMEMORY_LEAK (65 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONMEMORY_LEAK (64 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (63 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (62 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (59 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 89 remaining) [2025-03-09 01:32:44,919 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 89 remaining) [2025-03-09 01:32:44,920 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr4ASSERT_VIOLATIONMEMORY_LEAK (28 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location readerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 89 remaining) [2025-03-09 01:32:44,921 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 89 remaining) [2025-03-09 01:32:44,922 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location writerErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 89 remaining) [2025-03-09 01:32:44,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2025-03-09 01:32:44,923 INFO L422 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2025-03-09 01:32:44,927 WARN L246 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2025-03-09 01:32:44,927 INFO L491 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2025-03-09 01:32:45,065 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2025-03-09 01:32:45,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 381 places, 595 transitions, 1222 flow [2025-03-09 01:32:45,253 INFO L124 PetriNetUnfolderBase]: 614/1705 cut-off events. [2025-03-09 01:32:45,253 INFO L125 PetriNetUnfolderBase]: For 40/51 co-relation queries the response was YES. [2025-03-09 01:32:45,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1762 conditions, 1705 events. 614/1705 cut-off events. For 40/51 co-relation queries the response was YES. Maximal size of possible extension queue 69. Compared 10415 event pairs, 1 based on Foata normal form. 0/837 useless extension candidates. Maximal degree in co-relation 1051. Up to 48 conditions per place. [2025-03-09 01:32:45,305 INFO L82 GeneralOperation]: Start removeDead. Operand has 381 places, 595 transitions, 1222 flow [2025-03-09 01:32:45,350 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 381 places, 595 transitions, 1222 flow [2025-03-09 01:32:45,350 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2025-03-09 01:32:45,351 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=None, 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;@16b786f0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-03-09 01:32:45,351 INFO L334 AbstractCegarLoop]: Starting to check reachability of 128 error locations. [2025-03-09 01:32:45,352 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2025-03-09 01:32:45,353 INFO L124 PetriNetUnfolderBase]: 6/14 cut-off events. [2025-03-09 01:32:45,353 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2025-03-09 01:32:45,353 INFO L198 CegarLoopForPetriNet]: Found error trace [2025-03-09 01:32:45,353 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2025-03-09 01:32:45,354 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [readerErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE, readerErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 125 more)] === [2025-03-09 01:32:45,354 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2025-03-09 01:32:45,354 INFO L85 PathProgramCache]: Analyzing trace with hash -1938310583, now seen corresponding path program 1 times [2025-03-09 01:32:45,354 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-03-09 01:32:45,354 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932583981] [2025-03-09 01:32:45,354 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-03-09 01:32:45,354 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-03-09 01:32:45,360 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 5 statements into 1 equivalence classes. [2025-03-09 01:32:45,361 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 5 of 5 statements. [2025-03-09 01:32:45,361 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-03-09 01:32:45,361 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-03-09 01:32:45,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-03-09 01:32:45,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-03-09 01:32:45,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932583981] [2025-03-09 01:32:45,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932583981] provided 1 perfect and 0 imperfect interpolant sequences [2025-03-09 01:32:45,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-03-09 01:32:45,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2025-03-09 01:32:45,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612545282] [2025-03-09 01:32:45,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-03-09 01:32:45,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2025-03-09 01:32:45,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-03-09 01:32:45,366 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2025-03-09 01:32:45,366 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2025-03-09 01:32:45,367 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 105 out of 595 [2025-03-09 01:32:45,367 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 381 places, 595 transitions, 1222 flow. Second operand has 2 states, 2 states have (on average 107.0) internal successors, (214), 2 states have internal predecessors, (214), 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) [2025-03-09 01:32:45,367 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2025-03-09 01:32:45,367 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 105 of 595 [2025-03-09 01:32:45,367 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand