./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/valid-memsafety.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.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 b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 17:52:00,489 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 17:52:00,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-20 17:52:00,551 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 17:52:00,551 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 17:52:00,580 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 17:52:00,581 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 17:52:00,581 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 17:52:00,582 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 17:52:00,583 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 17:52:00,583 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 17:52:00,583 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 17:52:00,584 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 17:52:00,585 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 17:52:00,586 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 17:52:00,586 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 17:52:00,586 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 17:52:00,587 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 17:52:00,587 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 17:52:00,587 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 17:52:00,587 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-20 17:52:00,590 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-20 17:52:00,590 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-20 17:52:00,591 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 17:52:00,591 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-20 17:52:00,591 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 17:52:00,591 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 17:52:00,591 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 17:52:00,591 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 17:52:00,591 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 17:52:00,592 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 17:52:00,592 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 17:52:00,592 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 17:52:00,592 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:52:00,592 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 17:52:00,593 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 17:52:00,593 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 17:52:00,593 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 17:52:00,593 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 17:52:00,595 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 17:52:00,595 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 17:52:00,595 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 17:52:00,595 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2024-11-20 17:52:00,829 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 17:52:00,849 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 17:52:00,852 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 17:52:00,853 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 17:52:00,853 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 17:52:00,854 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-20 17:52:02,130 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 17:52:02,714 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 17:52:02,715 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-20 17:52:02,755 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/224f94588/584741654ab94eb28b94290b14eea8dd/FLAG1c70e7276 [2024-11-20 17:52:02,768 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/224f94588/584741654ab94eb28b94290b14eea8dd [2024-11-20 17:52:02,770 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 17:52:02,771 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 17:52:02,773 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 17:52:02,774 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 17:52:02,779 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 17:52:02,780 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:52:02" (1/1) ... [2024-11-20 17:52:02,781 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@311cdb60 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:02, skipping insertion in model container [2024-11-20 17:52:02,781 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:52:02" (1/1) ... [2024-11-20 17:52:02,884 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 17:52:03,895 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:52:03,900 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:52:03,901 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:52:03,905 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:52:03,905 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-20 17:52:04,206 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:52:04,224 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 17:52:04,367 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-20 17:52:04,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-20 17:52:04,369 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-20 17:52:04,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-20 17:52:04,374 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-20 17:52:04,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-20 17:52:04,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-20 17:52:04,375 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-20 17:52:04,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-20 17:52:04,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-20 17:52:04,376 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-20 17:52:04,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-20 17:52:04,377 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-20 17:52:04,382 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-20 17:52:04,382 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-20 17:52:04,382 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-20 17:52:04,383 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-20 17:52:04,383 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-20 17:52:04,383 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-20 17:52:04,383 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-20 17:52:04,384 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-20 17:52:04,384 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-20 17:52:04,388 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-20 17:52:04,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-20 17:52:04,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-20 17:52:04,389 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-20 17:52:04,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-20 17:52:04,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-20 17:52:04,390 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-20 17:52:04,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-20 17:52:04,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-20 17:52:04,391 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-20 17:52:04,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-20 17:52:04,392 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-20 17:52:04,395 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-20 17:52:04,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-20 17:52:04,396 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-20 17:52:04,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-20 17:52:04,397 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-20 17:52:04,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-20 17:52:04,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-20 17:52:04,398 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-20 17:52:04,399 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-20 17:52:04,402 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-20 17:52:04,403 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-20 17:52:04,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-20 17:52:04,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-20 17:52:04,404 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-20 17:52:04,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-20 17:52:04,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-20 17:52:04,405 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-20 17:52:04,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-20 17:52:04,406 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-20 17:52:04,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-20 17:52:04,413 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-20 17:52:04,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-20 17:52:04,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-20 17:52:04,414 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-20 17:52:04,415 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-20 17:52:04,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-20 17:52:04,420 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-20 17:52:04,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-20 17:52:04,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-20 17:52:04,421 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-20 17:52:04,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-20 17:52:04,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-20 17:52:04,422 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-20 17:52:04,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-20 17:52:04,423 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-20 17:52:04,424 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-20 17:52:04,427 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-20 17:52:04,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-20 17:52:04,428 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-20 17:52:04,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-20 17:52:04,429 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-20 17:52:04,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-20 17:52:04,434 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-20 17:52:04,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-20 17:52:04,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-20 17:52:04,435 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-20 17:52:04,436 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-20 17:52:04,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-20 17:52:04,456 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-20 17:52:04,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-20 17:52:04,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-20 17:52:04,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-20 17:52:04,457 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-20 17:52:04,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-20 17:52:04,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-20 17:52:04,458 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-20 17:52:04,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-20 17:52:04,459 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-20 17:52:04,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-20 17:52:04,463 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-20 17:52:04,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-20 17:52:04,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-20 17:52:04,464 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-20 17:52:04,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-20 17:52:04,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-20 17:52:04,465 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-20 17:52:04,539 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 17:52:04,714 INFO L204 MainTranslator]: Completed translation [2024-11-20 17:52:04,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04 WrapperNode [2024-11-20 17:52:04,715 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 17:52:04,716 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 17:52:04,716 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 17:52:04,716 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 17:52:04,720 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,775 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,839 INFO L138 Inliner]: procedures = 921, calls = 972, calls flagged for inlining = 848, calls inlined = 84, statements flattened = 926 [2024-11-20 17:52:04,843 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 17:52:04,844 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 17:52:04,844 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 17:52:04,844 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 17:52:04,855 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,856 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,911 INFO L175 MemorySlicer]: Split 50 memory accesses to 4 slices as follows [2, 28, 18, 2]. 56 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 7, 6, 0]. The 15 writes are split as follows [0, 9, 5, 1]. [2024-11-20 17:52:04,912 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,912 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,935 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,948 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,955 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,963 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,975 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 17:52:04,978 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 17:52:04,978 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 17:52:04,978 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 17:52:04,979 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (1/1) ... [2024-11-20 17:52:04,984 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 17:52:05,049 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:52:05,067 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) [2024-11-20 17:52:05,069 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 [2024-11-20 17:52:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-20 17:52:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-20 17:52:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-20 17:52:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-20 17:52:05,102 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 17:52:05,103 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-20 17:52:05,103 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-20 17:52:05,103 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-20 17:52:05,104 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 17:52:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-20 17:52:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-20 17:52:05,105 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-20 17:52:05,106 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-20 17:52:05,233 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 17:52:05,235 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 17:52:06,189 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-20 17:52:06,190 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 17:52:06,532 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 17:52:06,532 INFO L316 CfgBuilder]: Removed 106 assume(true) statements. [2024-11-20 17:52:06,532 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:06 BoogieIcfgContainer [2024-11-20 17:52:06,532 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 17:52:06,534 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 17:52:06,534 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 17:52:06,536 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 17:52:06,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:52:02" (1/3) ... [2024-11-20 17:52:06,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c17cd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:52:06, skipping insertion in model container [2024-11-20 17:52:06,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:52:04" (2/3) ... [2024-11-20 17:52:06,538 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c17cd4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:52:06, skipping insertion in model container [2024-11-20 17:52:06,538 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:52:06" (3/3) ... [2024-11-20 17:52:06,539 INFO L112 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2024-11-20 17:52:06,553 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 17:52:06,553 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2024-11-20 17:52:06,554 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-20 17:52:06,694 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-20 17:52:06,724 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 360 places, 515 transitions, 1037 flow [2024-11-20 17:52:06,866 INFO L124 PetriNetUnfolderBase]: 171/559 cut-off events. [2024-11-20 17:52:06,866 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-20 17:52:06,878 INFO L83 FinitePrefix]: Finished finitePrefix Result has 564 conditions, 559 events. 171/559 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 2207 event pairs, 0 based on Foata normal form. 0/290 useless extension candidates. Maximal degree in co-relation 420. Up to 6 conditions per place. [2024-11-20 17:52:06,882 INFO L82 GeneralOperation]: Start removeDead. Operand has 360 places, 515 transitions, 1037 flow [2024-11-20 17:52:06,904 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 515 transitions, 1037 flow [2024-11-20 17:52:06,918 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:52:06,930 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;@31dc650e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:52:06,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 154 error locations. [2024-11-20 17:52:06,935 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:52:06,937 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-20 17:52:06,937 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:52:06,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:06,938 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-20 17:52:06,942 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:06,951 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:06,951 INFO L85 PathProgramCache]: Analyzing trace with hash 99267, now seen corresponding path program 1 times [2024-11-20 17:52:06,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:06,967 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922789138] [2024-11-20 17:52:06,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:06,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:07,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:07,321 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:07,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:07,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922789138] [2024-11-20 17:52:07,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922789138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:07,322 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:07,322 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:52:07,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164907631] [2024-11-20 17:52:07,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:07,330 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:07,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:07,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:07,350 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:07,399 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:07,402 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 515 transitions, 1037 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-20 17:52:07,402 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:07,402 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:07,403 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:08,187 INFO L124 PetriNetUnfolderBase]: 1543/4334 cut-off events. [2024-11-20 17:52:08,187 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-20 17:52:08,195 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7243 conditions, 4334 events. 1543/4334 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33660 event pairs, 1240 based on Foata normal form. 2007/5529 useless extension candidates. Maximal degree in co-relation 7090. Up to 2900 conditions per place. [2024-11-20 17:52:08,213 INFO L140 encePairwiseOnDemand]: 379/515 looper letters, 190 selfloop transitions, 4 changer transitions 0/366 dead transitions. [2024-11-20 17:52:08,214 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 366 transitions, 1127 flow [2024-11-20 17:52:08,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:52:08,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:52:08,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 842 transitions. [2024-11-20 17:52:08,230 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5449838187702265 [2024-11-20 17:52:08,234 INFO L175 Difference]: Start difference. First operand has 360 places, 515 transitions, 1037 flow. Second operand 3 states and 842 transitions. [2024-11-20 17:52:08,234 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 366 transitions, 1127 flow [2024-11-20 17:52:08,239 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 366 transitions, 1127 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-20 17:52:08,246 INFO L231 Difference]: Finished difference. Result has 338 places, 366 transitions, 747 flow [2024-11-20 17:52:08,248 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=366, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=747, PETRI_PLACES=338, PETRI_TRANSITIONS=366} [2024-11-20 17:52:08,252 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -22 predicate places. [2024-11-20 17:52:08,253 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 366 transitions, 747 flow [2024-11-20 17:52:08,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-20 17:52:08,253 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:08,253 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-20 17:52:08,254 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 17:52:08,254 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:08,254 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:08,254 INFO L85 PathProgramCache]: Analyzing trace with hash 99268, now seen corresponding path program 1 times [2024-11-20 17:52:08,255 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:08,256 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902558790] [2024-11-20 17:52:08,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:08,256 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:08,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:08,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:08,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:08,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902558790] [2024-11-20 17:52:08,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902558790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:08,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:08,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:52:08,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520488013] [2024-11-20 17:52:08,417 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:08,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:08,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:08,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:08,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:08,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:08,463 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 338 places, 366 transitions, 747 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-20 17:52:08,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:08,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:08,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:09,031 INFO L124 PetriNetUnfolderBase]: 1543/4333 cut-off events. [2024-11-20 17:52:09,031 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-20 17:52:09,036 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7246 conditions, 4333 events. 1543/4333 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33587 event pairs, 1240 based on Foata normal form. 0/3523 useless extension candidates. Maximal degree in co-relation 7221. Up to 2901 conditions per place. [2024-11-20 17:52:09,050 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 191 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2024-11-20 17:52:09,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 365 transitions, 1131 flow [2024-11-20 17:52:09,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:52:09,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:52:09,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2024-11-20 17:52:09,052 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.459546925566343 [2024-11-20 17:52:09,052 INFO L175 Difference]: Start difference. First operand has 338 places, 366 transitions, 747 flow. Second operand 3 states and 710 transitions. [2024-11-20 17:52:09,052 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 365 transitions, 1131 flow [2024-11-20 17:52:09,055 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 365 transitions, 1123 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:52:09,058 INFO L231 Difference]: Finished difference. Result has 337 places, 365 transitions, 741 flow [2024-11-20 17:52:09,059 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=335, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=363, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=337, PETRI_TRANSITIONS=365} [2024-11-20 17:52:09,059 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -23 predicate places. [2024-11-20 17:52:09,060 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 365 transitions, 741 flow [2024-11-20 17:52:09,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-20 17:52:09,060 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:09,060 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:52:09,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 17:52:09,060 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:09,061 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:09,061 INFO L85 PathProgramCache]: Analyzing trace with hash 95498964, now seen corresponding path program 1 times [2024-11-20 17:52:09,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:09,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922672130] [2024-11-20 17:52:09,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:09,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:09,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:09,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:09,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:09,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922672130] [2024-11-20 17:52:09,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922672130] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:09,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:09,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:09,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835485553] [2024-11-20 17:52:09,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:09,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:52:09,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:09,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:52:09,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:52:09,240 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:09,242 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 365 transitions, 741 flow. Second operand has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-20 17:52:09,242 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:09,242 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:09,242 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:09,869 INFO L124 PetriNetUnfolderBase]: 1543/4331 cut-off events. [2024-11-20 17:52:09,870 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-20 17:52:09,874 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7240 conditions, 4331 events. 1543/4331 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33666 event pairs, 1240 based on Foata normal form. 0/3522 useless extension candidates. Maximal degree in co-relation 7228. Up to 2891 conditions per place. [2024-11-20 17:52:09,887 INFO L140 encePairwiseOnDemand]: 507/515 looper letters, 185 selfloop transitions, 6 changer transitions 0/363 dead transitions. [2024-11-20 17:52:09,887 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 363 transitions, 1119 flow [2024-11-20 17:52:09,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:52:09,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:52:09,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1053 transitions. [2024-11-20 17:52:09,890 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40893203883495144 [2024-11-20 17:52:09,890 INFO L175 Difference]: Start difference. First operand has 337 places, 365 transitions, 741 flow. Second operand 5 states and 1053 transitions. [2024-11-20 17:52:09,890 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 363 transitions, 1119 flow [2024-11-20 17:52:09,892 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 363 transitions, 1115 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:52:09,894 INFO L231 Difference]: Finished difference. Result has 337 places, 363 transitions, 745 flow [2024-11-20 17:52:09,895 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=363, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=357, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=745, PETRI_PLACES=337, PETRI_TRANSITIONS=363} [2024-11-20 17:52:09,895 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -23 predicate places. [2024-11-20 17:52:09,896 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 363 transitions, 745 flow [2024-11-20 17:52:09,896 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-20 17:52:09,896 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:09,896 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-20 17:52:09,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 17:52:09,897 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:09,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:09,897 INFO L85 PathProgramCache]: Analyzing trace with hash 95498965, now seen corresponding path program 1 times [2024-11-20 17:52:09,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:09,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580279015] [2024-11-20 17:52:09,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:09,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:09,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:10,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:10,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:10,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580279015] [2024-11-20 17:52:10,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580279015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:10,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:10,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:10,012 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857509532] [2024-11-20 17:52:10,012 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:10,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:52:10,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:10,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:52:10,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:52:10,110 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:10,112 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 363 transitions, 745 flow. Second operand has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-20 17:52:10,112 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:10,112 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:10,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:10,738 INFO L124 PetriNetUnfolderBase]: 1543/4330 cut-off events. [2024-11-20 17:52:10,738 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-20 17:52:10,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7242 conditions, 4330 events. 1543/4330 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33681 event pairs, 1240 based on Foata normal form. 0/3522 useless extension candidates. Maximal degree in co-relation 7212. Up to 2891 conditions per place. [2024-11-20 17:52:10,755 INFO L140 encePairwiseOnDemand]: 510/515 looper letters, 186 selfloop transitions, 4 changer transitions 0/362 dead transitions. [2024-11-20 17:52:10,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 362 transitions, 1123 flow [2024-11-20 17:52:10,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:52:10,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:52:10,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1051 transitions. [2024-11-20 17:52:10,758 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40815533980582525 [2024-11-20 17:52:10,758 INFO L175 Difference]: Start difference. First operand has 337 places, 363 transitions, 745 flow. Second operand 5 states and 1051 transitions. [2024-11-20 17:52:10,758 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 362 transitions, 1123 flow [2024-11-20 17:52:10,760 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 362 transitions, 1111 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:52:10,763 INFO L231 Difference]: Finished difference. Result has 336 places, 362 transitions, 739 flow [2024-11-20 17:52:10,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=731, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=739, PETRI_PLACES=336, PETRI_TRANSITIONS=362} [2024-11-20 17:52:10,764 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -24 predicate places. [2024-11-20 17:52:10,764 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 362 transitions, 739 flow [2024-11-20 17:52:10,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 172.8) internal successors, (864), 5 states have internal predecessors, (864), 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) [2024-11-20 17:52:10,765 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:10,765 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:10,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-20 17:52:10,765 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:10,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:10,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1744135598, now seen corresponding path program 1 times [2024-11-20 17:52:10,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:10,766 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034010100] [2024-11-20 17:52:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:10,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:10,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:10,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:10,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034010100] [2024-11-20 17:52:10,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034010100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:10,989 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:10,989 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:52:10,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [108605531] [2024-11-20 17:52:10,989 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:10,989 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:52:10,990 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:10,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:52:10,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:52:11,099 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:11,100 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 362 transitions, 739 flow. Second operand has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 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) [2024-11-20 17:52:11,100 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:11,100 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:11,100 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:11,792 INFO L124 PetriNetUnfolderBase]: 1543/4329 cut-off events. [2024-11-20 17:52:11,792 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-20 17:52:11,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7238 conditions, 4329 events. 1543/4329 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33663 event pairs, 1240 based on Foata normal form. 0/3523 useless extension candidates. Maximal degree in co-relation 7212. Up to 2891 conditions per place. [2024-11-20 17:52:11,813 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 183 selfloop transitions, 6 changer transitions 0/361 dead transitions. [2024-11-20 17:52:11,813 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 361 transitions, 1115 flow [2024-11-20 17:52:11,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:52:11,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:52:11,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2024-11-20 17:52:11,816 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39546925566343044 [2024-11-20 17:52:11,816 INFO L175 Difference]: Start difference. First operand has 336 places, 362 transitions, 739 flow. Second operand 6 states and 1222 transitions. [2024-11-20 17:52:11,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 361 transitions, 1115 flow [2024-11-20 17:52:11,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 361 transitions, 1107 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:52:11,822 INFO L231 Difference]: Finished difference. Result has 336 places, 361 transitions, 741 flow [2024-11-20 17:52:11,822 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=741, PETRI_PLACES=336, PETRI_TRANSITIONS=361} [2024-11-20 17:52:11,823 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -24 predicate places. [2024-11-20 17:52:11,824 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 361 transitions, 741 flow [2024-11-20 17:52:11,825 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 173.16666666666666) internal successors, (1039), 6 states have internal predecessors, (1039), 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) [2024-11-20 17:52:11,825 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:11,825 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:11,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 17:52:11,825 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:11,826 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:11,826 INFO L85 PathProgramCache]: Analyzing trace with hash -958206375, now seen corresponding path program 1 times [2024-11-20 17:52:11,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:11,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597409913] [2024-11-20 17:52:11,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:11,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:11,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:11,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:11,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:11,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597409913] [2024-11-20 17:52:11,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [597409913] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:11,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:11,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:11,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1703941751] [2024-11-20 17:52:11,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:11,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:52:11,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:11,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:52:11,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:52:11,910 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:11,911 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 336 places, 361 transitions, 741 flow. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-20 17:52:11,911 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:11,911 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:11,912 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:12,432 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-20 17:52:12,432 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-20 17:52:12,438 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7236 conditions, 4326 events. 1543/4326 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33634 event pairs, 1240 based on Foata normal form. 1/3520 useless extension candidates. Maximal degree in co-relation 7208. Up to 2881 conditions per place. [2024-11-20 17:52:12,448 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 185 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2024-11-20 17:52:12,448 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 358 transitions, 1111 flow [2024-11-20 17:52:12,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:52:12,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:52:12,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 877 transitions. [2024-11-20 17:52:12,450 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42572815533980585 [2024-11-20 17:52:12,450 INFO L175 Difference]: Start difference. First operand has 336 places, 361 transitions, 741 flow. Second operand 4 states and 877 transitions. [2024-11-20 17:52:12,450 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 358 transitions, 1111 flow [2024-11-20 17:52:12,453 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 358 transitions, 1099 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 17:52:12,456 INFO L231 Difference]: Finished difference. Result has 331 places, 358 transitions, 729 flow [2024-11-20 17:52:12,456 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=723, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=358, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=729, PETRI_PLACES=331, PETRI_TRANSITIONS=358} [2024-11-20 17:52:12,458 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-20 17:52:12,458 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 358 transitions, 729 flow [2024-11-20 17:52:12,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-20 17:52:12,459 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:12,459 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:12,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 17:52:12,460 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:12,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:12,460 INFO L85 PathProgramCache]: Analyzing trace with hash -1721639564, now seen corresponding path program 1 times [2024-11-20 17:52:12,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:12,461 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [103581671] [2024-11-20 17:52:12,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:12,461 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:12,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:12,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:12,519 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:12,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [103581671] [2024-11-20 17:52:12,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [103581671] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:12,520 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:12,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:12,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633600336] [2024-11-20 17:52:12,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:12,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:52:12,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:12,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:52:12,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:52:12,539 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:12,540 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 358 transitions, 729 flow. Second operand has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-20 17:52:12,540 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:12,540 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:12,540 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:13,162 INFO L124 PetriNetUnfolderBase]: 1543/4323 cut-off events. [2024-11-20 17:52:13,163 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-20 17:52:13,167 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7229 conditions, 4323 events. 1543/4323 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33642 event pairs, 1240 based on Foata normal form. 1/3518 useless extension candidates. Maximal degree in co-relation 7167. Up to 2881 conditions per place. [2024-11-20 17:52:13,179 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 184 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2024-11-20 17:52:13,179 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 355 transitions, 1097 flow [2024-11-20 17:52:13,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:52:13,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:52:13,181 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 876 transitions. [2024-11-20 17:52:13,183 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.42524271844660194 [2024-11-20 17:52:13,184 INFO L175 Difference]: Start difference. First operand has 331 places, 358 transitions, 729 flow. Second operand 4 states and 876 transitions. [2024-11-20 17:52:13,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 355 transitions, 1097 flow [2024-11-20 17:52:13,189 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 355 transitions, 1091 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:52:13,193 INFO L231 Difference]: Finished difference. Result has 328 places, 355 transitions, 723 flow [2024-11-20 17:52:13,193 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=723, PETRI_PLACES=328, PETRI_TRANSITIONS=355} [2024-11-20 17:52:13,196 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-20 17:52:13,196 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 355 transitions, 723 flow [2024-11-20 17:52:13,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 174.0) internal successors, (696), 4 states have internal predecessors, (696), 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) [2024-11-20 17:52:13,196 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:13,196 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:13,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-20 17:52:13,196 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:13,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:13,197 INFO L85 PathProgramCache]: Analyzing trace with hash -946705447, now seen corresponding path program 1 times [2024-11-20 17:52:13,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:13,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1166998202] [2024-11-20 17:52:13,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:13,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:13,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:13,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:13,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:13,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1166998202] [2024-11-20 17:52:13,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1166998202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:13,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:13,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:13,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [673074070] [2024-11-20 17:52:13,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:13,233 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:13,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:13,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:13,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:13,234 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:13,234 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 355 transitions, 723 flow. Second operand has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-20 17:52:13,234 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:13,234 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:13,234 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:13,716 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-20 17:52:13,717 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-20 17:52:13,720 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7235 conditions, 4326 events. 1543/4326 cut-off events. For 5/7 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33648 event pairs, 1240 based on Foata normal form. 0/3520 useless extension candidates. Maximal degree in co-relation 7173. Up to 2893 conditions per place. [2024-11-20 17:52:13,728 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 188 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2024-11-20 17:52:13,728 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 358 transitions, 1109 flow [2024-11-20 17:52:13,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:52:13,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:52:13,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2024-11-20 17:52:13,730 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4576051779935275 [2024-11-20 17:52:13,730 INFO L175 Difference]: Start difference. First operand has 328 places, 355 transitions, 723 flow. Second operand 3 states and 707 transitions. [2024-11-20 17:52:13,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 358 transitions, 1109 flow [2024-11-20 17:52:13,732 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 358 transitions, 1103 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:52:13,737 INFO L231 Difference]: Finished difference. Result has 328 places, 356 transitions, 729 flow [2024-11-20 17:52:13,738 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=717, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=729, PETRI_PLACES=328, PETRI_TRANSITIONS=356} [2024-11-20 17:52:13,739 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-20 17:52:13,739 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 356 transitions, 729 flow [2024-11-20 17:52:13,740 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 174.66666666666666) internal successors, (524), 3 states have internal predecessors, (524), 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) [2024-11-20 17:52:13,740 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:13,740 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:13,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-20 17:52:13,740 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:13,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:13,740 INFO L85 PathProgramCache]: Analyzing trace with hash -1005391165, now seen corresponding path program 1 times [2024-11-20 17:52:13,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:13,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694015307] [2024-11-20 17:52:13,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:13,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:13,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:13,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:13,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:13,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694015307] [2024-11-20 17:52:13,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1694015307] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:52:13,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1286414431] [2024-11-20 17:52:13,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:13,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:52:13,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:52:13,815 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:52:13,820 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 17:52:13,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:13,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 17:52:13,945 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:52:13,971 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:13,971 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:52:13,993 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:13,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1286414431] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:52:13,993 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:52:13,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-20 17:52:13,993 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999949700] [2024-11-20 17:52:13,993 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:52:13,994 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 17:52:13,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:13,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 17:52:13,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 17:52:13,996 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:13,997 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 356 transitions, 729 flow. Second operand has 7 states, 7 states have (on average 174.57142857142858) internal successors, (1222), 7 states have internal predecessors, (1222), 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) [2024-11-20 17:52:13,997 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:13,997 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:13,997 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:14,653 INFO L124 PetriNetUnfolderBase]: 1543/4329 cut-off events. [2024-11-20 17:52:14,654 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-20 17:52:14,658 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7245 conditions, 4329 events. 1543/4329 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33575 event pairs, 1240 based on Foata normal form. 1/3524 useless extension candidates. Maximal degree in co-relation 7221. Up to 2891 conditions per place. [2024-11-20 17:52:14,668 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 188 selfloop transitions, 5 changer transitions 0/361 dead transitions. [2024-11-20 17:52:14,668 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 361 transitions, 1127 flow [2024-11-20 17:52:14,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:52:14,669 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:52:14,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1054 transitions. [2024-11-20 17:52:14,671 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.40932038834951456 [2024-11-20 17:52:14,671 INFO L175 Difference]: Start difference. First operand has 328 places, 356 transitions, 729 flow. Second operand 5 states and 1054 transitions. [2024-11-20 17:52:14,671 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 361 transitions, 1127 flow [2024-11-20 17:52:14,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 361 transitions, 1125 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:52:14,676 INFO L231 Difference]: Finished difference. Result has 333 places, 358 transitions, 753 flow [2024-11-20 17:52:14,676 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=352, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=753, PETRI_PLACES=333, PETRI_TRANSITIONS=358} [2024-11-20 17:52:14,676 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -27 predicate places. [2024-11-20 17:52:14,677 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 358 transitions, 753 flow [2024-11-20 17:52:14,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 174.57142857142858) internal successors, (1222), 7 states have internal predecessors, (1222), 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) [2024-11-20 17:52:14,677 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:14,678 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:14,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 17:52:14,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:52:14,884 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:14,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:14,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1259926631, now seen corresponding path program 2 times [2024-11-20 17:52:14,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:14,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089399311] [2024-11-20 17:52:14,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:14,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:14,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:15,015 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:15,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:15,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089399311] [2024-11-20 17:52:15,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089399311] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:15,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:15,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:15,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1969580379] [2024-11-20 17:52:15,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:15,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:15,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:15,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:15,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:15,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:15,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 333 places, 358 transitions, 753 flow. Second operand has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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) [2024-11-20 17:52:15,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:15,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:15,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:15,507 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-20 17:52:15,507 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2024-11-20 17:52:15,512 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7252 conditions, 4326 events. 1543/4326 cut-off events. For 13/15 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33589 event pairs, 1240 based on Foata normal form. 1/3521 useless extension candidates. Maximal degree in co-relation 7204. Up to 2888 conditions per place. [2024-11-20 17:52:15,523 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 187 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2024-11-20 17:52:15,523 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 355 transitions, 1125 flow [2024-11-20 17:52:15,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:52:15,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:52:15,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2024-11-20 17:52:15,525 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.45501618122977344 [2024-11-20 17:52:15,525 INFO L175 Difference]: Start difference. First operand has 333 places, 358 transitions, 753 flow. Second operand 3 states and 703 transitions. [2024-11-20 17:52:15,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 355 transitions, 1125 flow [2024-11-20 17:52:15,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 355 transitions, 1119 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-20 17:52:15,533 INFO L231 Difference]: Finished difference. Result has 331 places, 355 transitions, 745 flow [2024-11-20 17:52:15,534 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=745, PETRI_PLACES=331, PETRI_TRANSITIONS=355} [2024-11-20 17:52:15,535 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-20 17:52:15,535 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 355 transitions, 745 flow [2024-11-20 17:52:15,535 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.66666666666666) internal successors, (527), 3 states have internal predecessors, (527), 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) [2024-11-20 17:52:15,535 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:15,535 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:15,535 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 17:52:15,535 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:15,536 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:15,536 INFO L85 PathProgramCache]: Analyzing trace with hash -1776387386, now seen corresponding path program 1 times [2024-11-20 17:52:15,536 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:15,536 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876924233] [2024-11-20 17:52:15,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:15,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:15,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:15,605 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:15,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:15,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876924233] [2024-11-20 17:52:15,606 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876924233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:15,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:15,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:52:15,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769845331] [2024-11-20 17:52:15,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:15,607 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:15,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:15,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:15,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:15,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 515 [2024-11-20 17:52:15,640 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 355 transitions, 745 flow. Second operand has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-20 17:52:15,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:15,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 515 [2024-11-20 17:52:15,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:16,481 INFO L124 PetriNetUnfolderBase]: 1835/4975 cut-off events. [2024-11-20 17:52:16,482 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-20 17:52:16,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8445 conditions, 4975 events. 1835/4975 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 132. Compared 39420 event pairs, 1240 based on Foata normal form. 0/4114 useless extension candidates. Maximal degree in co-relation 8399. Up to 2901 conditions per place. [2024-11-20 17:52:16,501 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 335 selfloop transitions, 2 changer transitions 0/499 dead transitions. [2024-11-20 17:52:16,502 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 499 transitions, 1707 flow [2024-11-20 17:52:16,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:52:16,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:52:16,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2024-11-20 17:52:16,507 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5436893203883495 [2024-11-20 17:52:16,507 INFO L175 Difference]: Start difference. First operand has 331 places, 355 transitions, 745 flow. Second operand 3 states and 840 transitions. [2024-11-20 17:52:16,507 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 499 transitions, 1707 flow [2024-11-20 17:52:16,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 499 transitions, 1703 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:52:16,513 INFO L231 Difference]: Finished difference. Result has 329 places, 353 transitions, 741 flow [2024-11-20 17:52:16,514 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=741, PETRI_PLACES=329, PETRI_TRANSITIONS=353} [2024-11-20 17:52:16,514 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-20 17:52:16,514 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 353 transitions, 741 flow [2024-11-20 17:52:16,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 172.66666666666666) internal successors, (518), 3 states have internal predecessors, (518), 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) [2024-11-20 17:52:16,515 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:16,515 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:16,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-20 17:52:16,515 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:16,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:16,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1776387385, now seen corresponding path program 1 times [2024-11-20 17:52:16,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:16,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080160143] [2024-11-20 17:52:16,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:16,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:16,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:16,577 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:16,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:16,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080160143] [2024-11-20 17:52:16,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080160143] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:16,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:16,578 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:16,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124169564] [2024-11-20 17:52:16,578 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:16,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:16,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:16,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:16,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:16,580 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:16,582 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 353 transitions, 741 flow. Second operand has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-11-20 17:52:16,582 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:16,582 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:16,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:17,234 INFO L124 PetriNetUnfolderBase]: 1546/4350 cut-off events. [2024-11-20 17:52:17,235 INFO L125 PetriNetUnfolderBase]: For 133/135 co-relation queries the response was YES. [2024-11-20 17:52:17,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7416 conditions, 4350 events. 1546/4350 cut-off events. For 133/135 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33503 event pairs, 1240 based on Foata normal form. 0/3549 useless extension candidates. Maximal degree in co-relation 7369. Up to 2902 conditions per place. [2024-11-20 17:52:17,254 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 202 selfloop transitions, 2 changer transitions 0/368 dead transitions. [2024-11-20 17:52:17,254 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 368 transitions, 1179 flow [2024-11-20 17:52:17,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:52:17,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:52:17,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2024-11-20 17:52:17,257 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4647249190938511 [2024-11-20 17:52:17,257 INFO L175 Difference]: Start difference. First operand has 329 places, 353 transitions, 741 flow. Second operand 3 states and 718 transitions. [2024-11-20 17:52:17,257 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 368 transitions, 1179 flow [2024-11-20 17:52:17,260 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 368 transitions, 1175 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:52:17,263 INFO L231 Difference]: Finished difference. Result has 330 places, 354 transitions, 749 flow [2024-11-20 17:52:17,263 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=327, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=749, PETRI_PLACES=330, PETRI_TRANSITIONS=354} [2024-11-20 17:52:17,265 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -30 predicate places. [2024-11-20 17:52:17,265 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 354 transitions, 749 flow [2024-11-20 17:52:17,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 176.33333333333334) internal successors, (529), 3 states have internal predecessors, (529), 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) [2024-11-20 17:52:17,265 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:17,265 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:17,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-20 17:52:17,266 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:17,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:17,266 INFO L85 PathProgramCache]: Analyzing trace with hash -870584356, now seen corresponding path program 1 times [2024-11-20 17:52:17,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:17,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697952539] [2024-11-20 17:52:17,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:17,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:17,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:17,465 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:17,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:17,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697952539] [2024-11-20 17:52:17,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697952539] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:17,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:17,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:52:17,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300254689] [2024-11-20 17:52:17,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:17,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:52:17,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:17,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:52:17,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:52:17,477 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:17,478 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 354 transitions, 749 flow. Second operand has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2024-11-20 17:52:17,478 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:17,478 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:17,478 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:18,054 INFO L124 PetriNetUnfolderBase]: 1546/4344 cut-off events. [2024-11-20 17:52:18,054 INFO L125 PetriNetUnfolderBase]: For 12/14 co-relation queries the response was YES. [2024-11-20 17:52:18,060 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7287 conditions, 4344 events. 1546/4344 cut-off events. For 12/14 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33473 event pairs, 1240 based on Foata normal form. 2/3546 useless extension candidates. Maximal degree in co-relation 7240. Up to 2889 conditions per place. [2024-11-20 17:52:18,071 INFO L140 encePairwiseOnDemand]: 510/515 looper letters, 184 selfloop transitions, 5 changer transitions 0/351 dead transitions. [2024-11-20 17:52:18,071 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 351 transitions, 1121 flow [2024-11-20 17:52:18,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:52:18,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:52:18,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 874 transitions. [2024-11-20 17:52:18,074 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4242718446601942 [2024-11-20 17:52:18,074 INFO L175 Difference]: Start difference. First operand has 330 places, 354 transitions, 749 flow. Second operand 4 states and 874 transitions. [2024-11-20 17:52:18,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 351 transitions, 1121 flow [2024-11-20 17:52:18,076 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 351 transitions, 1119 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-20 17:52:18,079 INFO L231 Difference]: Finished difference. Result has 329 places, 351 transitions, 751 flow [2024-11-20 17:52:18,080 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=741, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=751, PETRI_PLACES=329, PETRI_TRANSITIONS=351} [2024-11-20 17:52:18,081 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-20 17:52:18,081 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 351 transitions, 751 flow [2024-11-20 17:52:18,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.0) internal successors, (700), 4 states have internal predecessors, (700), 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) [2024-11-20 17:52:18,081 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:18,082 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:18,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 17:52:18,082 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:18,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:18,082 INFO L85 PathProgramCache]: Analyzing trace with hash 709659853, now seen corresponding path program 1 times [2024-11-20 17:52:18,082 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:18,082 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1110697633] [2024-11-20 17:52:18,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:18,082 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:18,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:18,288 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:18,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:18,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1110697633] [2024-11-20 17:52:18,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1110697633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:18,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:18,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:18,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536953817] [2024-11-20 17:52:18,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:18,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:52:18,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:18,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:52:18,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:52:18,413 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:18,414 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 351 transitions, 751 flow. Second operand has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-20 17:52:18,414 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:18,415 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:18,415 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:19,142 INFO L124 PetriNetUnfolderBase]: 1536/4231 cut-off events. [2024-11-20 17:52:19,143 INFO L125 PetriNetUnfolderBase]: For 16/18 co-relation queries the response was YES. [2024-11-20 17:52:19,148 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7179 conditions, 4231 events. 1536/4231 cut-off events. For 16/18 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 32345 event pairs, 992 based on Foata normal form. 0/3473 useless extension candidates. Maximal degree in co-relation 7132. Up to 2342 conditions per place. [2024-11-20 17:52:19,158 INFO L140 encePairwiseOnDemand]: 507/515 looper letters, 326 selfloop transitions, 8 changer transitions 0/496 dead transitions. [2024-11-20 17:52:19,158 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 496 transitions, 1709 flow [2024-11-20 17:52:19,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 17:52:19,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-20 17:52:19,162 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1363 transitions. [2024-11-20 17:52:19,163 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44110032362459545 [2024-11-20 17:52:19,163 INFO L175 Difference]: Start difference. First operand has 329 places, 351 transitions, 751 flow. Second operand 6 states and 1363 transitions. [2024-11-20 17:52:19,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 496 transitions, 1709 flow [2024-11-20 17:52:19,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 496 transitions, 1699 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:52:19,168 INFO L231 Difference]: Finished difference. Result has 330 places, 350 transitions, 755 flow [2024-11-20 17:52:19,169 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=739, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=342, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=755, PETRI_PLACES=330, PETRI_TRANSITIONS=350} [2024-11-20 17:52:19,169 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -30 predicate places. [2024-11-20 17:52:19,169 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 350 transitions, 755 flow [2024-11-20 17:52:19,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-20 17:52:19,170 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:19,170 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:19,170 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 17:52:19,170 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:19,171 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:19,171 INFO L85 PathProgramCache]: Analyzing trace with hash 709659854, now seen corresponding path program 1 times [2024-11-20 17:52:19,171 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:19,171 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706591117] [2024-11-20 17:52:19,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:19,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:19,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:19,463 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:19,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:19,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706591117] [2024-11-20 17:52:19,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706591117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:19,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:19,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:19,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [804000615] [2024-11-20 17:52:19,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:19,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 17:52:19,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:19,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 17:52:19,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 17:52:19,584 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:19,585 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 330 places, 350 transitions, 755 flow. Second operand has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-20 17:52:19,585 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:19,585 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:19,585 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:20,243 INFO L124 PetriNetUnfolderBase]: 1546/4340 cut-off events. [2024-11-20 17:52:20,244 INFO L125 PetriNetUnfolderBase]: For 140/142 co-relation queries the response was YES. [2024-11-20 17:52:20,248 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7414 conditions, 4340 events. 1546/4340 cut-off events. For 140/142 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33444 event pairs, 1240 based on Foata normal form. 0/3544 useless extension candidates. Maximal degree in co-relation 7365. Up to 2888 conditions per place. [2024-11-20 17:52:20,256 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 181 selfloop transitions, 6 changer transitions 0/349 dead transitions. [2024-11-20 17:52:20,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 349 transitions, 1127 flow [2024-11-20 17:52:20,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:52:20,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:52:20,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1044 transitions. [2024-11-20 17:52:20,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4054368932038835 [2024-11-20 17:52:20,259 INFO L175 Difference]: Start difference. First operand has 330 places, 350 transitions, 755 flow. Second operand 5 states and 1044 transitions. [2024-11-20 17:52:20,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 349 transitions, 1127 flow [2024-11-20 17:52:20,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 349 transitions, 1111 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-20 17:52:20,263 INFO L231 Difference]: Finished difference. Result has 328 places, 349 transitions, 749 flow [2024-11-20 17:52:20,264 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=349, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=749, PETRI_PLACES=328, PETRI_TRANSITIONS=349} [2024-11-20 17:52:20,265 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-20 17:52:20,265 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 349 transitions, 749 flow [2024-11-20 17:52:20,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 175.2) internal successors, (876), 5 states have internal predecessors, (876), 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) [2024-11-20 17:52:20,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:20,266 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 17:52:20,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-20 17:52:20,266 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:20,267 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:20,267 INFO L85 PathProgramCache]: Analyzing trace with hash -916577378, now seen corresponding path program 1 times [2024-11-20 17:52:20,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:20,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670303970] [2024-11-20 17:52:20,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:20,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:20,702 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:20,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:20,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670303970] [2024-11-20 17:52:20,702 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670303970] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:20,703 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:20,703 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 17:52:20,703 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016955039] [2024-11-20 17:52:20,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:20,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 17:52:20,703 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:20,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 17:52:20,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-20 17:52:20,876 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-20 17:52:20,877 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 349 transitions, 749 flow. Second operand has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2024-11-20 17:52:20,877 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:20,878 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-20 17:52:20,878 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:21,664 INFO L124 PetriNetUnfolderBase]: 1546/4336 cut-off events. [2024-11-20 17:52:21,665 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-11-20 17:52:21,669 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7285 conditions, 4336 events. 1546/4336 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33485 event pairs, 1240 based on Foata normal form. 2/3548 useless extension candidates. Maximal degree in co-relation 7237. Up to 2888 conditions per place. [2024-11-20 17:52:21,678 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 182 selfloop transitions, 6 changer transitions 0/347 dead transitions. [2024-11-20 17:52:21,678 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 347 transitions, 1121 flow [2024-11-20 17:52:21,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 17:52:21,679 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-20 17:52:21,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1031 transitions. [2024-11-20 17:52:21,681 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4003883495145631 [2024-11-20 17:52:21,681 INFO L175 Difference]: Start difference. First operand has 328 places, 349 transitions, 749 flow. Second operand 5 states and 1031 transitions. [2024-11-20 17:52:21,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 347 transitions, 1121 flow [2024-11-20 17:52:21,684 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 347 transitions, 1109 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:52:21,687 INFO L231 Difference]: Finished difference. Result has 326 places, 347 transitions, 745 flow [2024-11-20 17:52:21,687 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=733, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=745, PETRI_PLACES=326, PETRI_TRANSITIONS=347} [2024-11-20 17:52:21,687 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -34 predicate places. [2024-11-20 17:52:21,687 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 347 transitions, 745 flow [2024-11-20 17:52:21,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 172.0) internal successors, (1032), 6 states have internal predecessors, (1032), 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) [2024-11-20 17:52:21,688 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:21,688 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 17:52:21,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-20 17:52:21,688 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:21,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:21,689 INFO L85 PathProgramCache]: Analyzing trace with hash -916577379, now seen corresponding path program 1 times [2024-11-20 17:52:21,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:21,689 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292851592] [2024-11-20 17:52:21,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:21,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:21,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:21,831 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:21,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:21,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292851592] [2024-11-20 17:52:21,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [292851592] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:21,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:21,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:52:21,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790283135] [2024-11-20 17:52:21,832 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:21,832 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:52:21,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:21,833 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:52:21,833 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:52:21,882 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-20 17:52:21,883 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 326 places, 347 transitions, 745 flow. Second operand has 4 states, 4 states have (on average 173.5) internal successors, (694), 4 states have internal predecessors, (694), 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) [2024-11-20 17:52:21,883 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:21,883 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-20 17:52:21,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:22,609 INFO L124 PetriNetUnfolderBase]: 1536/4221 cut-off events. [2024-11-20 17:52:22,610 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-11-20 17:52:22,616 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7170 conditions, 4221 events. 1536/4221 cut-off events. For 10/12 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 32249 event pairs, 992 based on Foata normal form. 2/3473 useless extension candidates. Maximal degree in co-relation 7122. Up to 2344 conditions per place. [2024-11-20 17:52:22,626 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 329 selfloop transitions, 5 changer transitions 0/491 dead transitions. [2024-11-20 17:52:22,626 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 491 transitions, 1701 flow [2024-11-20 17:52:22,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:52:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:52:22,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1008 transitions. [2024-11-20 17:52:22,629 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4893203883495146 [2024-11-20 17:52:22,629 INFO L175 Difference]: Start difference. First operand has 326 places, 347 transitions, 745 flow. Second operand 4 states and 1008 transitions. [2024-11-20 17:52:22,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 491 transitions, 1701 flow [2024-11-20 17:52:22,631 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 491 transitions, 1689 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-20 17:52:22,634 INFO L231 Difference]: Finished difference. Result has 323 places, 345 transitions, 739 flow [2024-11-20 17:52:22,635 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=739, PETRI_PLACES=323, PETRI_TRANSITIONS=345} [2024-11-20 17:52:22,635 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -37 predicate places. [2024-11-20 17:52:22,635 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 345 transitions, 739 flow [2024-11-20 17:52:22,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 173.5) internal successors, (694), 4 states have internal predecessors, (694), 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) [2024-11-20 17:52:22,636 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:22,636 INFO L204 CegarLoopForPetriNet]: trace histogram [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] [2024-11-20 17:52:22,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-20 17:52:22,636 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:22,636 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:22,636 INFO L85 PathProgramCache]: Analyzing trace with hash 832633426, now seen corresponding path program 1 times [2024-11-20 17:52:22,637 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:22,637 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370930518] [2024-11-20 17:52:22,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:22,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:22,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:22,722 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:22,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:22,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370930518] [2024-11-20 17:52:22,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1370930518] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:52:22,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814709446] [2024-11-20 17:52:22,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:22,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:52:22,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:52:22,727 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:52:22,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 17:52:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:22,884 INFO L255 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-20 17:52:22,886 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:52:22,941 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:22,941 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:52:23,034 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-20 17:52:23,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814709446] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:52:23,035 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:52:23,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-20 17:52:23,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005723606] [2024-11-20 17:52:23,035 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:52:23,035 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 17:52:23,035 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:23,035 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 17:52:23,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 17:52:23,036 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-20 17:52:23,039 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 345 transitions, 739 flow. Second operand has 9 states, 9 states have (on average 176.44444444444446) internal successors, (1588), 9 states have internal predecessors, (1588), 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) [2024-11-20 17:52:23,039 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:23,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-20 17:52:23,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:24,170 INFO L124 PetriNetUnfolderBase]: 1549/4358 cut-off events. [2024-11-20 17:52:24,170 INFO L125 PetriNetUnfolderBase]: For 143/145 co-relation queries the response was YES. [2024-11-20 17:52:24,175 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7444 conditions, 4358 events. 1549/4358 cut-off events. For 143/145 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33315 event pairs, 1240 based on Foata normal form. 2/3570 useless extension candidates. Maximal degree in co-relation 7396. Up to 2877 conditions per place. [2024-11-20 17:52:24,182 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 206 selfloop transitions, 8 changer transitions 0/372 dead transitions. [2024-11-20 17:52:24,182 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 372 transitions, 1233 flow [2024-11-20 17:52:24,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 17:52:24,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-20 17:52:24,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1420 transitions. [2024-11-20 17:52:24,185 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.39389736477115117 [2024-11-20 17:52:24,185 INFO L175 Difference]: Start difference. First operand has 323 places, 345 transitions, 739 flow. Second operand 7 states and 1420 transitions. [2024-11-20 17:52:24,185 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 372 transitions, 1233 flow [2024-11-20 17:52:24,187 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 372 transitions, 1215 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-20 17:52:24,189 INFO L231 Difference]: Finished difference. Result has 329 places, 347 transitions, 767 flow [2024-11-20 17:52:24,190 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=729, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=345, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=767, PETRI_PLACES=329, PETRI_TRANSITIONS=347} [2024-11-20 17:52:24,190 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-20 17:52:24,190 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 347 transitions, 767 flow [2024-11-20 17:52:24,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 176.44444444444446) internal successors, (1588), 9 states have internal predecessors, (1588), 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) [2024-11-20 17:52:24,191 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:24,191 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:24,198 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 17:52:24,395 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 17:52:24,396 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:24,396 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:24,396 INFO L85 PathProgramCache]: Analyzing trace with hash 1395893032, now seen corresponding path program 2 times [2024-11-20 17:52:24,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:24,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527561876] [2024-11-20 17:52:24,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:24,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:24,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:24,652 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-20 17:52:24,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:24,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527561876] [2024-11-20 17:52:24,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527561876] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:24,652 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:24,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 17:52:24,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138768468] [2024-11-20 17:52:24,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:24,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 17:52:24,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:24,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 17:52:24,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-20 17:52:24,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 515 [2024-11-20 17:52:24,712 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 347 transitions, 767 flow. Second operand has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2024-11-20 17:52:24,712 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:24,712 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 515 [2024-11-20 17:52:24,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:25,578 INFO L124 PetriNetUnfolderBase]: 1654/5609 cut-off events. [2024-11-20 17:52:25,578 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-20 17:52:25,583 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8850 conditions, 5609 events. 1654/5609 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 131. Compared 49618 event pairs, 248 based on Foata normal form. 0/4796 useless extension candidates. Maximal degree in co-relation 8797. Up to 1956 conditions per place. [2024-11-20 17:52:25,590 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 478 selfloop transitions, 5 changer transitions 0/639 dead transitions. [2024-11-20 17:52:25,590 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 639 transitions, 2317 flow [2024-11-20 17:52:25,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 17:52:25,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-20 17:52:25,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1159 transitions. [2024-11-20 17:52:25,592 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5626213592233009 [2024-11-20 17:52:25,592 INFO L175 Difference]: Start difference. First operand has 329 places, 347 transitions, 767 flow. Second operand 4 states and 1159 transitions. [2024-11-20 17:52:25,592 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 639 transitions, 2317 flow [2024-11-20 17:52:25,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 639 transitions, 2299 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-20 17:52:25,598 INFO L231 Difference]: Finished difference. Result has 328 places, 347 transitions, 771 flow [2024-11-20 17:52:25,599 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=747, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=346, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=341, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=771, PETRI_PLACES=328, PETRI_TRANSITIONS=347} [2024-11-20 17:52:25,599 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-20 17:52:25,599 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 347 transitions, 771 flow [2024-11-20 17:52:25,599 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 175.75) internal successors, (703), 4 states have internal predecessors, (703), 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) [2024-11-20 17:52:25,599 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:25,600 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:25,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 17:52:25,600 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:25,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:25,600 INFO L85 PathProgramCache]: Analyzing trace with hash -368938041, now seen corresponding path program 1 times [2024-11-20 17:52:25,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:25,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [393714481] [2024-11-20 17:52:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:25,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:25,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:25,996 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 17:52:25,997 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:25,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [393714481] [2024-11-20 17:52:25,997 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [393714481] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 17:52:25,997 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1076788283] [2024-11-20 17:52:25,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:25,997 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:52:25,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 17:52:25,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 17:52:26,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 17:52:26,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:26,213 INFO L255 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 17:52:26,216 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 17:52:26,270 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 17:52:26,272 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 17:52:26,407 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-20 17:52:26,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1076788283] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 17:52:26,408 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 17:52:26,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2024-11-20 17:52:26,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2124737555] [2024-11-20 17:52:26,408 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 17:52:26,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-20 17:52:26,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:26,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-20 17:52:26,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-20 17:52:30,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-20 17:52:30,755 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-20 17:52:30,758 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 328 places, 347 transitions, 771 flow. Second operand has 17 states, 17 states have (on average 172.76470588235293) internal successors, (2937), 17 states have internal predecessors, (2937), 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) [2024-11-20 17:52:30,758 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:30,758 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-20 17:52:30,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:32,296 INFO L124 PetriNetUnfolderBase]: 1550/4392 cut-off events. [2024-11-20 17:52:32,296 INFO L125 PetriNetUnfolderBase]: For 1008/1010 co-relation queries the response was YES. [2024-11-20 17:52:32,300 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8276 conditions, 4392 events. 1550/4392 cut-off events. For 1008/1010 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33549 event pairs, 1240 based on Foata normal form. 2/3722 useless extension candidates. Maximal degree in co-relation 8225. Up to 2884 conditions per place. [2024-11-20 17:52:32,306 INFO L140 encePairwiseOnDemand]: 504/515 looper letters, 220 selfloop transitions, 27 changer transitions 0/401 dead transitions. [2024-11-20 17:52:32,306 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 401 transitions, 1391 flow [2024-11-20 17:52:32,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 17:52:32,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-20 17:52:32,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3288 transitions. [2024-11-20 17:52:32,313 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.3546925566343042 [2024-11-20 17:52:32,313 INFO L175 Difference]: Start difference. First operand has 328 places, 347 transitions, 771 flow. Second operand 18 states and 3288 transitions. [2024-11-20 17:52:32,313 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 401 transitions, 1391 flow [2024-11-20 17:52:32,315 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 401 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-20 17:52:32,318 INFO L231 Difference]: Finished difference. Result has 353 places, 371 transitions, 949 flow [2024-11-20 17:52:32,318 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=766, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=949, PETRI_PLACES=353, PETRI_TRANSITIONS=371} [2024-11-20 17:52:32,318 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -7 predicate places. [2024-11-20 17:52:32,318 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 371 transitions, 949 flow [2024-11-20 17:52:32,319 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 172.76470588235293) internal successors, (2937), 17 states have internal predecessors, (2937), 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) [2024-11-20 17:52:32,319 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:32,319 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-20 17:52:32,330 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 17:52:32,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 17:52:32,521 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:32,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:32,521 INFO L85 PathProgramCache]: Analyzing trace with hash 443305544, now seen corresponding path program 1 times [2024-11-20 17:52:32,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:32,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1543334812] [2024-11-20 17:52:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:32,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:32,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:32,706 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 17:52:32,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:32,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1543334812] [2024-11-20 17:52:32,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1543334812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:32,707 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:32,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 17:52:32,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837458743] [2024-11-20 17:52:32,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:32,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:32,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:32,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:32,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:32,711 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 515 [2024-11-20 17:52:32,711 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 353 places, 371 transitions, 949 flow. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2024-11-20 17:52:32,711 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:32,711 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 515 [2024-11-20 17:52:32,712 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-20 17:52:33,238 INFO L124 PetriNetUnfolderBase]: 1542/4364 cut-off events. [2024-11-20 17:52:33,238 INFO L125 PetriNetUnfolderBase]: For 812/814 co-relation queries the response was YES. [2024-11-20 17:52:33,247 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8037 conditions, 4364 events. 1542/4364 cut-off events. For 812/814 co-relation queries the response was YES. Maximal size of possible extension queue 118. Compared 33375 event pairs, 1240 based on Foata normal form. 4/3704 useless extension candidates. Maximal degree in co-relation 7976. Up to 2922 conditions per place. [2024-11-20 17:52:33,256 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 201 selfloop transitions, 6 changer transitions 0/361 dead transitions. [2024-11-20 17:52:33,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 361 transitions, 1319 flow [2024-11-20 17:52:33,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 17:52:33,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-20 17:52:33,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 693 transitions. [2024-11-20 17:52:33,258 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44854368932038835 [2024-11-20 17:52:33,259 INFO L175 Difference]: Start difference. First operand has 353 places, 371 transitions, 949 flow. Second operand 3 states and 693 transitions. [2024-11-20 17:52:33,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 361 transitions, 1319 flow [2024-11-20 17:52:33,262 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 361 transitions, 1296 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-20 17:52:33,265 INFO L231 Difference]: Finished difference. Result has 346 places, 361 transitions, 894 flow [2024-11-20 17:52:33,265 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=515, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=344, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=361, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=894, PETRI_PLACES=346, PETRI_TRANSITIONS=361} [2024-11-20 17:52:33,266 INFO L277 CegarLoopForPetriNet]: 360 programPoint places, -14 predicate places. [2024-11-20 17:52:33,266 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 361 transitions, 894 flow [2024-11-20 17:52:33,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 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) [2024-11-20 17:52:33,266 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:33,266 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-20 17:52:33,266 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-20 17:52:33,266 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 151 more)] === [2024-11-20 17:52:33,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:33,266 INFO L85 PathProgramCache]: Analyzing trace with hash -897610528, now seen corresponding path program 1 times [2024-11-20 17:52:33,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:33,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766523758] [2024-11-20 17:52:33,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:33,267 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:33,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:52:33,377 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-20 17:52:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-20 17:52:33,530 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-20 17:52:33,530 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-20 17:52:33,532 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (153 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (152 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (151 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (150 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (149 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (148 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (147 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (146 of 154 remaining) [2024-11-20 17:52:33,534 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (145 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (144 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (143 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (142 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (141 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (140 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (139 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (138 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (137 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (136 of 154 remaining) [2024-11-20 17:52:33,535 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK (135 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (134 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (133 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (132 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (131 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (130 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (129 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (128 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (127 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (126 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (125 of 154 remaining) [2024-11-20 17:52:33,536 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONMEMORY_LEAK (124 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (123 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (122 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (121 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (120 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37ASSERT_VIOLATIONMEMORY_LEAK (119 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (118 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 154 remaining) [2024-11-20 17:52:33,537 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40ASSERT_VIOLATIONMEMORY_LEAK (110 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONMEMORY_LEAK (107 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONMEMORY_LEAK (104 of 154 remaining) [2024-11-20 17:52:33,538 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 154 remaining) [2024-11-20 17:52:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 154 remaining) [2024-11-20 17:52:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 154 remaining) [2024-11-20 17:52:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 154 remaining) [2024-11-20 17:52:33,539 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONMEMORY_LEAK (95 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47ASSERT_VIOLATIONMEMORY_LEAK (90 of 154 remaining) [2024-11-20 17:52:33,540 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51ASSERT_VIOLATIONMEMORY_LEAK (87 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50ASSERT_VIOLATIONMEMORY_LEAK (86 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54ASSERT_VIOLATIONMEMORY_LEAK (81 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 154 remaining) [2024-11-20 17:52:33,541 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (62 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONMEMORY_LEAK (59 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37ASSERT_VIOLATIONMEMORY_LEAK (54 of 154 remaining) [2024-11-20 17:52:33,542 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40ASSERT_VIOLATIONMEMORY_LEAK (45 of 154 remaining) [2024-11-20 17:52:33,543 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 154 remaining) [2024-11-20 17:52:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 154 remaining) [2024-11-20 17:52:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONMEMORY_LEAK (42 of 154 remaining) [2024-11-20 17:52:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 154 remaining) [2024-11-20 17:52:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 154 remaining) [2024-11-20 17:52:33,544 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONMEMORY_LEAK (39 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONMEMORY_LEAK (30 of 154 remaining) [2024-11-20 17:52:33,545 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47ASSERT_VIOLATIONMEMORY_LEAK (25 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51ASSERT_VIOLATIONMEMORY_LEAK (22 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50ASSERT_VIOLATIONMEMORY_LEAK (21 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 154 remaining) [2024-11-20 17:52:33,546 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54ASSERT_VIOLATIONMEMORY_LEAK (16 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 154 remaining) [2024-11-20 17:52:33,547 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 154 remaining) [2024-11-20 17:52:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 154 remaining) [2024-11-20 17:52:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 154 remaining) [2024-11-20 17:52:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 154 remaining) [2024-11-20 17:52:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 154 remaining) [2024-11-20 17:52:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 154 remaining) [2024-11-20 17:52:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 154 remaining) [2024-11-20 17:52:33,548 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 154 remaining) [2024-11-20 17:52:33,548 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-20 17:52:33,549 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 17:52:33,550 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-20 17:52:33,550 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-20 17:52:33,723 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-20 17:52:33,732 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 892 transitions, 1800 flow [2024-11-20 17:52:33,899 INFO L124 PetriNetUnfolderBase]: 311/1013 cut-off events. [2024-11-20 17:52:33,900 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-20 17:52:33,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1025 conditions, 1013 events. 311/1013 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 5232 event pairs, 0 based on Foata normal form. 0/526 useless extension candidates. Maximal degree in co-relation 826. Up to 12 conditions per place. [2024-11-20 17:52:33,928 INFO L82 GeneralOperation]: Start removeDead. Operand has 621 places, 892 transitions, 1800 flow [2024-11-20 17:52:33,958 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 621 places, 892 transitions, 1800 flow [2024-11-20 17:52:33,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 17:52:33,959 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;@31dc650e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 17:52:33,959 INFO L334 AbstractCegarLoop]: Starting to check reachability of 219 error locations. [2024-11-20 17:52:33,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-20 17:52:33,961 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-20 17:52:33,961 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-20 17:52:33,961 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-20 17:52:33,961 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-20 17:52:33,961 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 216 more)] === [2024-11-20 17:52:33,961 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 17:52:33,962 INFO L85 PathProgramCache]: Analyzing trace with hash 127811, now seen corresponding path program 1 times [2024-11-20 17:52:33,962 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 17:52:33,962 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1466456452] [2024-11-20 17:52:33,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 17:52:33,962 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 17:52:33,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 17:52:33,998 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-20 17:52:33,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 17:52:33,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1466456452] [2024-11-20 17:52:33,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1466456452] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 17:52:33,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 17:52:33,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-20 17:52:33,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425975523] [2024-11-20 17:52:33,999 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 17:52:33,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 17:52:33,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 17:52:34,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 17:52:34,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 17:52:34,053 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 892 [2024-11-20 17:52:34,055 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 892 transitions, 1800 flow. Second operand has 3 states, 3 states have (on average 294.6666666666667) internal successors, (884), 3 states have internal predecessors, (884), 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) [2024-11-20 17:52:34,055 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-20 17:52:34,055 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 892 [2024-11-20 17:52:34,055 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand