./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/libvsync/hclhlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../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.dk.perfect-tracechecks-8be7027-m [2024-11-12 16:34:48,449 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 16:34:48,506 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-12 16:34:48,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 16:34:48,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 16:34:48,534 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 16:34:48,535 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 16:34:48,536 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 16:34:48,536 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 16:34:48,537 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 16:34:48,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 16:34:48,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 16:34:48,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 16:34:48,539 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 16:34:48,541 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 16:34:48,541 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 16:34:48,541 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 16:34:48,542 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 16:34:48,542 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 16:34:48,542 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 16:34:48,542 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-12 16:34:48,542 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-12 16:34:48,543 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-12 16:34:48,543 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 16:34:48,543 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-12 16:34:48,543 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 16:34:48,543 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 16:34:48,543 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 16:34:48,544 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 16:34:48,544 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 16:34:48,544 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 16:34:48,544 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 16:34:48,544 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 16:34:48,544 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:34:48,544 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 16:34:48,545 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 16:34:48,545 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 16:34:48,545 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 16:34:48,545 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 16:34:48,545 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 16:34:48,545 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 16:34:48,546 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 16:34:48,546 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b0a2798ee53cc94366daea227ae4e14ebe705512ec93088d5efc9992b9f84ae5 [2024-11-12 16:34:48,738 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 16:34:48,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 16:34:48,760 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 16:34:48,761 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 16:34:48,762 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 16:34:48,763 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/hclhlock.i [2024-11-12 16:34:50,027 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 16:34:50,454 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 16:34:50,455 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/hclhlock.i [2024-11-12 16:34:50,499 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4db4a1f/7ba22b9367a14185b0d6c8a3c0ce14a4/FLAG1174ed8d2 [2024-11-12 16:34:50,616 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5f4db4a1f/7ba22b9367a14185b0d6c8a3c0ce14a4 [2024-11-12 16:34:50,619 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 16:34:50,622 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 16:34:50,624 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 16:34:50,625 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 16:34:50,631 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 16:34:50,631 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:34:50" (1/1) ... [2024-11-12 16:34:50,632 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4029557a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:50, skipping insertion in model container [2024-11-12 16:34:50,633 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 04:34:50" (1/1) ... [2024-11-12 16:34:50,704 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 16:34:51,960 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 16:34:51,966 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 16:34:51,966 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 16:34:51,980 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 16:34:51,981 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-12 16:34:52,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:34:52,409 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 16:34:52,519 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-12 16:34:52,521 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-12 16:34:52,522 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-12 16:34:52,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-12 16:34:52,523 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-12 16:34:52,524 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-12 16:34:52,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-12 16:34:52,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-12 16:34:52,525 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-12 16:34:52,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-12 16:34:52,526 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-12 16:34:52,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-12 16:34:52,527 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-12 16:34:52,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-12 16:34:52,528 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-12 16:34:52,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-12 16:34:52,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-12 16:34:52,529 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-12 16:34:52,530 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-12 16:34:52,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-12 16:34:52,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-12 16:34:52,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-12 16:34:52,531 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-12 16:34:52,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-12 16:34:52,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-12 16:34:52,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-12 16:34:52,532 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-12 16:34:52,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-12 16:34:52,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-12 16:34:52,533 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-12 16:34:52,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-12 16:34:52,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-12 16:34:52,534 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-12 16:34:52,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-12 16:34:52,535 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-12 16:34:52,536 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-12 16:34:52,537 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-12 16:34:52,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-12 16:34:52,538 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-12 16:34:52,539 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-12 16:34:52,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-12 16:34:52,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-12 16:34:52,540 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-12 16:34:52,541 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-12 16:34:52,542 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-12 16:34:52,544 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-12 16:34:52,545 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-12 16:34:52,546 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-12 16:34:52,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-12 16:34:52,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-12 16:34:52,550 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-12 16:34:52,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-12 16:34:52,551 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-12 16:34:52,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-12 16:34:52,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-12 16:34:52,552 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-12 16:34:52,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-12 16:34:52,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-12 16:34:52,553 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-12 16:34:52,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-12 16:34:52,554 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-12 16:34:52,555 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-12 16:34:52,556 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-12 16:34:52,557 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-12 16:34:52,558 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-12 16:34:52,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-12 16:34:52,559 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-12 16:34:52,561 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-12 16:34:52,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-12 16:34:52,562 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-12 16:34:52,564 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-12 16:34:52,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-12 16:34:52,565 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-12 16:34:52,566 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-12 16:34:52,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-12 16:34:52,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-12 16:34:52,567 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-12 16:34:52,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-12 16:34:52,569 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-12 16:34:52,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-12 16:34:52,570 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-12 16:34:52,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-12 16:34:52,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-12 16:34:52,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-12 16:34:52,571 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-12 16:34:52,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-12 16:34:52,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-12 16:34:52,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-12 16:34:52,572 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-12 16:34:52,573 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-12 16:34:52,574 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-12 16:34:52,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-12 16:34:52,575 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-12 16:34:52,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-12 16:34:52,577 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-12 16:34:52,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-12 16:34:52,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-12 16:34:52,579 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-12 16:34:52,580 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-12 16:34:52,581 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-12 16:34:52,657 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 16:34:52,915 INFO L204 MainTranslator]: Completed translation [2024-11-12 16:34:52,915 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52 WrapperNode [2024-11-12 16:34:52,916 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 16:34:52,917 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 16:34:52,917 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 16:34:52,917 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 16:34:52,922 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,011 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,084 INFO L138 Inliner]: procedures = 921, calls = 972, calls flagged for inlining = 848, calls inlined = 84, statements flattened = 926 [2024-11-12 16:34:53,084 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 16:34:53,085 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 16:34:53,085 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 16:34:53,085 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 16:34:53,096 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,096 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,100 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,141 INFO L175 MemorySlicer]: Split 50 memory accesses to 4 slices as follows [2, 2, 28, 18]. 56 percent of accesses are in the largest equivalence class. The 15 initializations are split as follows [2, 0, 7, 6]. The 15 writes are split as follows [0, 1, 9, 5]. [2024-11-12 16:34:53,145 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,146 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,171 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,188 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,201 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 16:34:53,202 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 16:34:53,202 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 16:34:53,203 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 16:34:53,204 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (1/1) ... [2024-11-12 16:34:53,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 16:34:53,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:34:53,240 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) [2024-11-12 16:34:53,242 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 [2024-11-12 16:34:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-12 16:34:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-12 16:34:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-12 16:34:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-12 16:34:53,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 16:34:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-12 16:34:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-12 16:34:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-12 16:34:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#3 [2024-11-12 16:34:53,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 16:34:53,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 16:34:53,284 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-12 16:34:53,285 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-12 16:34:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-12 16:34:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-12 16:34:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-12 16:34:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-12 16:34:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#3 [2024-11-12 16:34:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-12 16:34:53,285 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-12 16:34:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-12 16:34:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-12 16:34:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-12 16:34:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-12 16:34:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-12 16:34:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-12 16:34:53,286 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#3 [2024-11-12 16:34:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 16:34:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-12 16:34:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-12 16:34:53,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-12 16:34:53,289 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 16:34:53,483 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 16:34:53,485 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 16:34:54,415 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 16:34:54,415 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 16:34:54,802 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 16:34:54,802 INFO L316 CfgBuilder]: Removed 106 assume(true) statements. [2024-11-12 16:34:54,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:34:54 BoogieIcfgContainer [2024-11-12 16:34:54,803 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 16:34:54,804 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 16:34:54,804 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 16:34:54,807 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 16:34:54,807 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 04:34:50" (1/3) ... [2024-11-12 16:34:54,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e324f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:34:54, skipping insertion in model container [2024-11-12 16:34:54,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 04:34:52" (2/3) ... [2024-11-12 16:34:54,808 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e324f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 04:34:54, skipping insertion in model container [2024-11-12 16:34:54,808 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 04:34:54" (3/3) ... [2024-11-12 16:34:54,809 INFO L112 eAbstractionObserver]: Analyzing ICFG hclhlock.i [2024-11-12 16:34:54,825 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 16:34:54,825 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 88 error locations. [2024-11-12 16:34:54,825 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 16:34:54,984 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-12 16:34:55,020 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 360 places, 515 transitions, 1037 flow [2024-11-12 16:34:55,128 INFO L124 PetriNetUnfolderBase]: 171/559 cut-off events. [2024-11-12 16:34:55,130 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-12 16:34:55,146 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. [2024-11-12 16:34:55,146 INFO L82 GeneralOperation]: Start removeDead. Operand has 360 places, 515 transitions, 1037 flow [2024-11-12 16:34:55,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 360 places, 515 transitions, 1037 flow [2024-11-12 16:34:55,163 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:34:55,168 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;@48d8dd69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:34:55,169 INFO L334 AbstractCegarLoop]: Starting to check reachability of 154 error locations. [2024-11-12 16:34:55,171 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:34:55,171 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-12 16:34:55,171 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:34:55,172 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:55,172 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-12 16:34:55,173 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)] === [2024-11-12 16:34:55,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:55,178 INFO L85 PathProgramCache]: Analyzing trace with hash 99267, now seen corresponding path program 1 times [2024-11-12 16:34:55,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:55,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783162615] [2024-11-12 16:34:55,186 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:55,186 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:55,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:55,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:55,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:55,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783162615] [2024-11-12 16:34:55,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783162615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:55,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:55,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:34:55,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63993866] [2024-11-12 16:34:55,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:55,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:34:55,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:55,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:34:55,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:34:55,559 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:34:55,562 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) [2024-11-12 16:34:55,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:55,562 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:34:55,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:56,424 INFO L124 PetriNetUnfolderBase]: 1543/4334 cut-off events. [2024-11-12 16:34:56,424 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-12 16:34:56,431 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. [2024-11-12 16:34:56,447 INFO L140 encePairwiseOnDemand]: 379/515 looper letters, 190 selfloop transitions, 4 changer transitions 0/366 dead transitions. [2024-11-12 16:34:56,447 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 366 transitions, 1127 flow [2024-11-12 16:34:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:34:56,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:34:56,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 842 transitions. [2024-11-12 16:34:56,468 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5449838187702265 [2024-11-12 16:34:56,472 INFO L175 Difference]: Start difference. First operand has 360 places, 515 transitions, 1037 flow. Second operand 3 states and 842 transitions. [2024-11-12 16:34:56,473 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 366 transitions, 1127 flow [2024-11-12 16:34:56,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 366 transitions, 1127 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-12 16:34:56,484 INFO L231 Difference]: Finished difference. Result has 338 places, 366 transitions, 747 flow [2024-11-12 16:34:56,486 INFO L262 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} [2024-11-12 16:34:56,491 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -22 predicate places. [2024-11-12 16:34:56,491 INFO L471 AbstractCegarLoop]: Abstraction has has 338 places, 366 transitions, 747 flow [2024-11-12 16:34:56,492 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) [2024-11-12 16:34:56,492 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:56,492 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-12 16:34:56,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 16:34:56,493 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)] === [2024-11-12 16:34:56,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:56,494 INFO L85 PathProgramCache]: Analyzing trace with hash 99268, now seen corresponding path program 1 times [2024-11-12 16:34:56,494 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:56,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000374241] [2024-11-12 16:34:56,494 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:56,495 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:56,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:56,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:56,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:56,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000374241] [2024-11-12 16:34:56,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000374241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:56,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:56,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:34:56,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [917960201] [2024-11-12 16:34:56,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:56,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:34:56,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:34:56,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:34:56,678 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:34:56,679 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) [2024-11-12 16:34:56,679 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:56,679 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:34:56,679 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:57,299 INFO L124 PetriNetUnfolderBase]: 1543/4333 cut-off events. [2024-11-12 16:34:57,299 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-12 16:34:57,303 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. [2024-11-12 16:34:57,317 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 191 selfloop transitions, 2 changer transitions 0/365 dead transitions. [2024-11-12 16:34:57,317 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 365 transitions, 1131 flow [2024-11-12 16:34:57,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:34:57,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:34:57,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 710 transitions. [2024-11-12 16:34:57,319 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.459546925566343 [2024-11-12 16:34:57,319 INFO L175 Difference]: Start difference. First operand has 338 places, 366 transitions, 747 flow. Second operand 3 states and 710 transitions. [2024-11-12 16:34:57,319 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 365 transitions, 1131 flow [2024-11-12 16:34:57,322 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 365 transitions, 1123 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:34:57,327 INFO L231 Difference]: Finished difference. Result has 337 places, 365 transitions, 741 flow [2024-11-12 16:34:57,328 INFO L262 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} [2024-11-12 16:34:57,328 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -23 predicate places. [2024-11-12 16:34:57,328 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 365 transitions, 741 flow [2024-11-12 16:34:57,329 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) [2024-11-12 16:34:57,329 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:57,329 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-12 16:34:57,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 16:34:57,329 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)] === [2024-11-12 16:34:57,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:57,330 INFO L85 PathProgramCache]: Analyzing trace with hash 95498964, now seen corresponding path program 1 times [2024-11-12 16:34:57,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:57,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664105894] [2024-11-12 16:34:57,330 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:57,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:57,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:57,449 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:57,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:57,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664105894] [2024-11-12 16:34:57,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664105894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:57,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:57,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:34:57,450 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637718090] [2024-11-12 16:34:57,450 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:57,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:34:57,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:57,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:34:57,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:34:57,568 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:34:57,569 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) [2024-11-12 16:34:57,569 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:57,569 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:34:57,569 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:58,374 INFO L124 PetriNetUnfolderBase]: 1543/4331 cut-off events. [2024-11-12 16:34:58,374 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-12 16:34:58,379 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. [2024-11-12 16:34:58,394 INFO L140 encePairwiseOnDemand]: 507/515 looper letters, 185 selfloop transitions, 6 changer transitions 0/363 dead transitions. [2024-11-12 16:34:58,395 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 363 transitions, 1119 flow [2024-11-12 16:34:58,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:34:58,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:34:58,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1053 transitions. [2024-11-12 16:34:58,397 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40893203883495144 [2024-11-12 16:34:58,397 INFO L175 Difference]: Start difference. First operand has 337 places, 365 transitions, 741 flow. Second operand 5 states and 1053 transitions. [2024-11-12 16:34:58,397 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 363 transitions, 1119 flow [2024-11-12 16:34:58,400 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 337 places, 363 transitions, 1115 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:34:58,403 INFO L231 Difference]: Finished difference. Result has 337 places, 363 transitions, 745 flow [2024-11-12 16:34:58,403 INFO L262 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} [2024-11-12 16:34:58,404 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -23 predicate places. [2024-11-12 16:34:58,405 INFO L471 AbstractCegarLoop]: Abstraction has has 337 places, 363 transitions, 745 flow [2024-11-12 16:34:58,405 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) [2024-11-12 16:34:58,405 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:58,405 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-11-12 16:34:58,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 16:34:58,406 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)] === [2024-11-12 16:34:58,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:58,407 INFO L85 PathProgramCache]: Analyzing trace with hash 95498965, now seen corresponding path program 1 times [2024-11-12 16:34:58,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:58,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317619370] [2024-11-12 16:34:58,407 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:58,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:58,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:58,535 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:58,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:58,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317619370] [2024-11-12 16:34:58,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1317619370] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:58,536 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:58,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:34:58,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [516289944] [2024-11-12 16:34:58,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:58,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:34:58,538 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:58,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:34:58,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:34:58,654 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:34:58,656 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) [2024-11-12 16:34:58,656 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:58,656 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:34:58,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:34:59,398 INFO L124 PetriNetUnfolderBase]: 1543/4330 cut-off events. [2024-11-12 16:34:59,398 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-12 16:34:59,402 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. [2024-11-12 16:34:59,415 INFO L140 encePairwiseOnDemand]: 510/515 looper letters, 186 selfloop transitions, 4 changer transitions 0/362 dead transitions. [2024-11-12 16:34:59,415 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 362 transitions, 1123 flow [2024-11-12 16:34:59,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:34:59,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:34:59,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1051 transitions. [2024-11-12 16:34:59,418 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40815533980582525 [2024-11-12 16:34:59,418 INFO L175 Difference]: Start difference. First operand has 337 places, 363 transitions, 745 flow. Second operand 5 states and 1051 transitions. [2024-11-12 16:34:59,419 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 362 transitions, 1123 flow [2024-11-12 16:34:59,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 362 transitions, 1111 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:34:59,423 INFO L231 Difference]: Finished difference. Result has 336 places, 362 transitions, 739 flow [2024-11-12 16:34:59,424 INFO L262 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} [2024-11-12 16:34:59,425 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -24 predicate places. [2024-11-12 16:34:59,425 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 362 transitions, 739 flow [2024-11-12 16:34:59,425 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) [2024-11-12 16:34:59,425 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:34:59,426 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:34:59,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 16:34:59,426 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)] === [2024-11-12 16:34:59,426 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:34:59,426 INFO L85 PathProgramCache]: Analyzing trace with hash 1744135598, now seen corresponding path program 1 times [2024-11-12 16:34:59,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:34:59,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97732947] [2024-11-12 16:34:59,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:34:59,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:34:59,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:34:59,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:34:59,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:34:59,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97732947] [2024-11-12 16:34:59,644 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97732947] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:34:59,644 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:34:59,644 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:34:59,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744756445] [2024-11-12 16:34:59,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:34:59,645 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:34:59,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:34:59,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:34:59,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:34:59,755 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:34:59,756 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) [2024-11-12 16:34:59,756 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:34:59,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:34:59,757 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:00,451 INFO L124 PetriNetUnfolderBase]: 1543/4329 cut-off events. [2024-11-12 16:35:00,451 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-12 16:35:00,456 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. [2024-11-12 16:35:00,473 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 183 selfloop transitions, 6 changer transitions 0/361 dead transitions. [2024-11-12 16:35:00,473 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 340 places, 361 transitions, 1115 flow [2024-11-12 16:35:00,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:35:00,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:35:00,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1222 transitions. [2024-11-12 16:35:00,476 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39546925566343044 [2024-11-12 16:35:00,476 INFO L175 Difference]: Start difference. First operand has 336 places, 362 transitions, 739 flow. Second operand 6 states and 1222 transitions. [2024-11-12 16:35:00,476 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 340 places, 361 transitions, 1115 flow [2024-11-12 16:35:00,478 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 361 transitions, 1107 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:35:00,483 INFO L231 Difference]: Finished difference. Result has 336 places, 361 transitions, 741 flow [2024-11-12 16:35:00,483 INFO L262 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} [2024-11-12 16:35:00,485 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -24 predicate places. [2024-11-12 16:35:00,486 INFO L471 AbstractCegarLoop]: Abstraction has has 336 places, 361 transitions, 741 flow [2024-11-12 16:35:00,486 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) [2024-11-12 16:35:00,486 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:00,487 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:00,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 16:35:00,487 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)] === [2024-11-12 16:35:00,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:00,488 INFO L85 PathProgramCache]: Analyzing trace with hash -958206375, now seen corresponding path program 1 times [2024-11-12 16:35:00,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:00,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332940340] [2024-11-12 16:35:00,489 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:00,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:00,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:35:00,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:00,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332940340] [2024-11-12 16:35:00,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332940340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:00,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:00,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:00,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1165778709] [2024-11-12 16:35:00,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:00,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:35:00,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:35:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:35:00,569 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:00,570 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) [2024-11-12 16:35:00,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:00,570 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:00,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:01,203 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-12 16:35:01,203 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-12 16:35:01,209 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. [2024-11-12 16:35:01,223 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 185 selfloop transitions, 3 changer transitions 0/358 dead transitions. [2024-11-12 16:35:01,224 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 336 places, 358 transitions, 1111 flow [2024-11-12 16:35:01,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:35:01,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:35:01,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 877 transitions. [2024-11-12 16:35:01,227 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42572815533980585 [2024-11-12 16:35:01,227 INFO L175 Difference]: Start difference. First operand has 336 places, 361 transitions, 741 flow. Second operand 4 states and 877 transitions. [2024-11-12 16:35:01,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 336 places, 358 transitions, 1111 flow [2024-11-12 16:35:01,230 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 358 transitions, 1099 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 16:35:01,234 INFO L231 Difference]: Finished difference. Result has 331 places, 358 transitions, 729 flow [2024-11-12 16:35:01,234 INFO L262 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} [2024-11-12 16:35:01,237 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-12 16:35:01,237 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 358 transitions, 729 flow [2024-11-12 16:35:01,237 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) [2024-11-12 16:35:01,238 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:01,238 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:01,238 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 16:35:01,238 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)] === [2024-11-12 16:35:01,239 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:01,239 INFO L85 PathProgramCache]: Analyzing trace with hash -1721639564, now seen corresponding path program 1 times [2024-11-12 16:35:01,239 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:01,239 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735433920] [2024-11-12 16:35:01,239 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:01,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:01,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:35:01,300 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:01,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735433920] [2024-11-12 16:35:01,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735433920] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:01,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:01,302 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:01,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2022029228] [2024-11-12 16:35:01,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:01,302 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:35:01,302 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:01,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:35:01,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:35:01,311 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:01,312 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) [2024-11-12 16:35:01,313 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:01,313 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:01,313 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:01,833 INFO L124 PetriNetUnfolderBase]: 1543/4323 cut-off events. [2024-11-12 16:35:01,834 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-12 16:35:01,838 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. [2024-11-12 16:35:01,850 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 184 selfloop transitions, 3 changer transitions 0/355 dead transitions. [2024-11-12 16:35:01,850 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 355 transitions, 1097 flow [2024-11-12 16:35:01,850 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:35:01,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:35:01,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 876 transitions. [2024-11-12 16:35:01,854 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.42524271844660194 [2024-11-12 16:35:01,854 INFO L175 Difference]: Start difference. First operand has 331 places, 358 transitions, 729 flow. Second operand 4 states and 876 transitions. [2024-11-12 16:35:01,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 355 transitions, 1097 flow [2024-11-12 16:35:01,855 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 355 transitions, 1091 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 16:35:01,858 INFO L231 Difference]: Finished difference. Result has 328 places, 355 transitions, 723 flow [2024-11-12 16:35:01,859 INFO L262 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} [2024-11-12 16:35:01,859 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-12 16:35:01,859 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 355 transitions, 723 flow [2024-11-12 16:35:01,860 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) [2024-11-12 16:35:01,860 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:01,860 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:01,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-12 16:35:01,860 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)] === [2024-11-12 16:35:01,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:01,861 INFO L85 PathProgramCache]: Analyzing trace with hash -946705447, now seen corresponding path program 1 times [2024-11-12 16:35:01,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:01,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477617357] [2024-11-12 16:35:01,861 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:01,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:01,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:01,902 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:35:01,903 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:01,903 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477617357] [2024-11-12 16:35:01,903 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477617357] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:01,903 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:01,903 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:01,903 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207814192] [2024-11-12 16:35:01,903 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:01,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:35:01,904 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:01,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:35:01,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:35:01,905 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:01,905 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) [2024-11-12 16:35:01,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:01,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:01,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:02,409 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-12 16:35:02,410 INFO L125 PetriNetUnfolderBase]: For 5/7 co-relation queries the response was YES. [2024-11-12 16:35:02,415 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. [2024-11-12 16:35:02,427 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 188 selfloop transitions, 2 changer transitions 0/358 dead transitions. [2024-11-12 16:35:02,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 358 transitions, 1109 flow [2024-11-12 16:35:02,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:35:02,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:35:02,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2024-11-12 16:35:02,430 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4576051779935275 [2024-11-12 16:35:02,430 INFO L175 Difference]: Start difference. First operand has 328 places, 355 transitions, 723 flow. Second operand 3 states and 707 transitions. [2024-11-12 16:35:02,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 358 transitions, 1109 flow [2024-11-12 16:35:02,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 327 places, 358 transitions, 1103 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 16:35:02,437 INFO L231 Difference]: Finished difference. Result has 328 places, 356 transitions, 729 flow [2024-11-12 16:35:02,438 INFO L262 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} [2024-11-12 16:35:02,439 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-12 16:35:02,439 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 356 transitions, 729 flow [2024-11-12 16:35:02,440 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) [2024-11-12 16:35:02,440 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:02,440 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:02,440 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-12 16:35:02,440 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)] === [2024-11-12 16:35:02,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:02,441 INFO L85 PathProgramCache]: Analyzing trace with hash -1005391165, now seen corresponding path program 1 times [2024-11-12 16:35:02,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:02,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529611802] [2024-11-12 16:35:02,441 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:02,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:02,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:02,517 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:35:02,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:02,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529611802] [2024-11-12 16:35:02,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529611802] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:35:02,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1343746776] [2024-11-12 16:35:02,517 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:02,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:35:02,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:35:02,522 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) [2024-11-12 16:35:02,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-12 16:35:02,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:02,658 INFO L256 TraceCheckSpWp]: Trace formula consists of 288 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-12 16:35:02,662 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:35:02,690 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:35:02,690 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:35:02,716 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:35:02,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1343746776] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:35:02,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:35:02,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-12 16:35:02,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378146760] [2024-11-12 16:35:02,717 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:35:02,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-12 16:35:02,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:02,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-12 16:35:02,719 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-12 16:35:02,719 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:02,721 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) [2024-11-12 16:35:02,721 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:02,721 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:02,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:03,364 INFO L124 PetriNetUnfolderBase]: 1543/4329 cut-off events. [2024-11-12 16:35:03,365 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-12 16:35:03,371 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. [2024-11-12 16:35:03,385 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 188 selfloop transitions, 5 changer transitions 0/361 dead transitions. [2024-11-12 16:35:03,385 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 361 transitions, 1127 flow [2024-11-12 16:35:03,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:35:03,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:35:03,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1054 transitions. [2024-11-12 16:35:03,388 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.40932038834951456 [2024-11-12 16:35:03,388 INFO L175 Difference]: Start difference. First operand has 328 places, 356 transitions, 729 flow. Second operand 5 states and 1054 transitions. [2024-11-12 16:35:03,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 361 transitions, 1127 flow [2024-11-12 16:35:03,390 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 361 transitions, 1125 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:35:03,393 INFO L231 Difference]: Finished difference. Result has 333 places, 358 transitions, 753 flow [2024-11-12 16:35:03,394 INFO L262 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} [2024-11-12 16:35:03,395 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -27 predicate places. [2024-11-12 16:35:03,395 INFO L471 AbstractCegarLoop]: Abstraction has has 333 places, 358 transitions, 753 flow [2024-11-12 16:35:03,396 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) [2024-11-12 16:35:03,396 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:03,396 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:03,415 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-12 16:35:03,600 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 [2024-11-12 16:35:03,601 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)] === [2024-11-12 16:35:03,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:03,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1259926631, now seen corresponding path program 2 times [2024-11-12 16:35:03,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:03,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551149946] [2024-11-12 16:35:03,601 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:03,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:03,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:03,720 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-12 16:35:03,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:03,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551149946] [2024-11-12 16:35:03,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1551149946] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:03,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:03,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:03,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938427739] [2024-11-12 16:35:03,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:03,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:35:03,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:03,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:35:03,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:35:03,727 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:03,728 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) [2024-11-12 16:35:03,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:03,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:03,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:04,226 INFO L124 PetriNetUnfolderBase]: 1543/4326 cut-off events. [2024-11-12 16:35:04,226 INFO L125 PetriNetUnfolderBase]: For 13/15 co-relation queries the response was YES. [2024-11-12 16:35:04,231 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. [2024-11-12 16:35:04,242 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 187 selfloop transitions, 2 changer transitions 0/355 dead transitions. [2024-11-12 16:35:04,242 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 355 transitions, 1125 flow [2024-11-12 16:35:04,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:35:04,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:35:04,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 703 transitions. [2024-11-12 16:35:04,244 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.45501618122977344 [2024-11-12 16:35:04,244 INFO L175 Difference]: Start difference. First operand has 333 places, 358 transitions, 753 flow. Second operand 3 states and 703 transitions. [2024-11-12 16:35:04,244 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 355 transitions, 1125 flow [2024-11-12 16:35:04,246 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 355 transitions, 1119 flow, removed 2 selfloop flow, removed 1 redundant places. [2024-11-12 16:35:04,250 INFO L231 Difference]: Finished difference. Result has 331 places, 355 transitions, 745 flow [2024-11-12 16:35:04,250 INFO L262 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} [2024-11-12 16:35:04,251 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -29 predicate places. [2024-11-12 16:35:04,251 INFO L471 AbstractCegarLoop]: Abstraction has has 331 places, 355 transitions, 745 flow [2024-11-12 16:35:04,251 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) [2024-11-12 16:35:04,251 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:04,251 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:04,252 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-12 16:35:04,252 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)] === [2024-11-12 16:35:04,252 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:04,252 INFO L85 PathProgramCache]: Analyzing trace with hash -1776387386, now seen corresponding path program 1 times [2024-11-12 16:35:04,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:04,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847293310] [2024-11-12 16:35:04,253 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:04,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:04,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:04,325 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 16:35:04,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:04,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847293310] [2024-11-12 16:35:04,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847293310] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:04,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:04,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:35:04,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839214868] [2024-11-12 16:35:04,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:04,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:35:04,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:04,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:35:04,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:35:04,362 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 515 [2024-11-12 16:35:04,363 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) [2024-11-12 16:35:04,363 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:04,363 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 515 [2024-11-12 16:35:04,363 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:05,100 INFO L124 PetriNetUnfolderBase]: 1835/4975 cut-off events. [2024-11-12 16:35:05,101 INFO L125 PetriNetUnfolderBase]: For 5/5 co-relation queries the response was YES. [2024-11-12 16:35:05,107 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. [2024-11-12 16:35:05,122 INFO L140 encePairwiseOnDemand]: 511/515 looper letters, 335 selfloop transitions, 2 changer transitions 0/499 dead transitions. [2024-11-12 16:35:05,123 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 499 transitions, 1707 flow [2024-11-12 16:35:05,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:35:05,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:35:05,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 840 transitions. [2024-11-12 16:35:05,129 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5436893203883495 [2024-11-12 16:35:05,129 INFO L175 Difference]: Start difference. First operand has 331 places, 355 transitions, 745 flow. Second operand 3 states and 840 transitions. [2024-11-12 16:35:05,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 499 transitions, 1707 flow [2024-11-12 16:35:05,132 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 499 transitions, 1703 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:35:05,137 INFO L231 Difference]: Finished difference. Result has 329 places, 353 transitions, 741 flow [2024-11-12 16:35:05,137 INFO L262 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} [2024-11-12 16:35:05,138 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-12 16:35:05,138 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 353 transitions, 741 flow [2024-11-12 16:35:05,138 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) [2024-11-12 16:35:05,138 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:05,139 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:05,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-12 16:35:05,139 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)] === [2024-11-12 16:35:05,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:05,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1776387385, now seen corresponding path program 1 times [2024-11-12 16:35:05,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:05,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621033726] [2024-11-12 16:35:05,140 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:05,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:05,206 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-12 16:35:05,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:05,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621033726] [2024-11-12 16:35:05,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621033726] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:05,207 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:05,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:05,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638887792] [2024-11-12 16:35:05,207 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:05,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:35:05,208 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:05,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:35:05,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:35:05,209 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:05,210 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) [2024-11-12 16:35:05,210 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:05,210 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:05,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:05,804 INFO L124 PetriNetUnfolderBase]: 1546/4350 cut-off events. [2024-11-12 16:35:05,805 INFO L125 PetriNetUnfolderBase]: For 133/135 co-relation queries the response was YES. [2024-11-12 16:35:05,810 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. [2024-11-12 16:35:05,822 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 202 selfloop transitions, 2 changer transitions 0/368 dead transitions. [2024-11-12 16:35:05,822 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 368 transitions, 1179 flow [2024-11-12 16:35:05,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:35:05,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:35:05,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 718 transitions. [2024-11-12 16:35:05,824 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4647249190938511 [2024-11-12 16:35:05,824 INFO L175 Difference]: Start difference. First operand has 329 places, 353 transitions, 741 flow. Second operand 3 states and 718 transitions. [2024-11-12 16:35:05,824 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 368 transitions, 1179 flow [2024-11-12 16:35:05,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 368 transitions, 1175 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:35:05,831 INFO L231 Difference]: Finished difference. Result has 330 places, 354 transitions, 749 flow [2024-11-12 16:35:05,831 INFO L262 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} [2024-11-12 16:35:05,832 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -30 predicate places. [2024-11-12 16:35:05,832 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 354 transitions, 749 flow [2024-11-12 16:35:05,832 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) [2024-11-12 16:35:05,832 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:05,833 INFO L206 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:05,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-12 16:35:05,833 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)] === [2024-11-12 16:35:05,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:05,833 INFO L85 PathProgramCache]: Analyzing trace with hash -870584356, now seen corresponding path program 1 times [2024-11-12 16:35:05,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:05,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25833350] [2024-11-12 16:35:05,834 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:05,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:05,991 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-12 16:35:05,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:05,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25833350] [2024-11-12 16:35:05,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25833350] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:05,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:05,992 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:35:05,992 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509165363] [2024-11-12 16:35:05,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:05,992 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:35:05,992 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:05,993 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:35:05,993 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:35:06,004 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:06,005 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) [2024-11-12 16:35:06,006 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:06,006 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:06,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:06,583 INFO L124 PetriNetUnfolderBase]: 1546/4344 cut-off events. [2024-11-12 16:35:06,583 INFO L125 PetriNetUnfolderBase]: For 12/14 co-relation queries the response was YES. [2024-11-12 16:35:06,589 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. [2024-11-12 16:35:06,601 INFO L140 encePairwiseOnDemand]: 510/515 looper letters, 184 selfloop transitions, 5 changer transitions 0/351 dead transitions. [2024-11-12 16:35:06,602 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 351 transitions, 1121 flow [2024-11-12 16:35:06,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:35:06,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:35:06,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 874 transitions. [2024-11-12 16:35:06,607 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4242718446601942 [2024-11-12 16:35:06,607 INFO L175 Difference]: Start difference. First operand has 330 places, 354 transitions, 749 flow. Second operand 4 states and 874 transitions. [2024-11-12 16:35:06,607 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 351 transitions, 1121 flow [2024-11-12 16:35:06,609 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 351 transitions, 1119 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-12 16:35:06,612 INFO L231 Difference]: Finished difference. Result has 329 places, 351 transitions, 751 flow [2024-11-12 16:35:06,613 INFO L262 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} [2024-11-12 16:35:06,613 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-12 16:35:06,614 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 351 transitions, 751 flow [2024-11-12 16:35:06,614 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) [2024-11-12 16:35:06,614 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:06,614 INFO L206 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] [2024-11-12 16:35:06,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-12 16:35:06,615 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)] === [2024-11-12 16:35:06,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:06,615 INFO L85 PathProgramCache]: Analyzing trace with hash 709659853, now seen corresponding path program 1 times [2024-11-12 16:35:06,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:06,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364279004] [2024-11-12 16:35:06,615 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:06,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:06,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:06,780 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 16:35:06,780 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:06,780 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364279004] [2024-11-12 16:35:06,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364279004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:06,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:06,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:06,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657377691] [2024-11-12 16:35:06,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:06,781 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:35:06,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:06,782 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:35:06,782 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:35:06,859 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:06,861 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) [2024-11-12 16:35:06,861 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:06,861 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:06,861 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:07,695 INFO L124 PetriNetUnfolderBase]: 1536/4231 cut-off events. [2024-11-12 16:35:07,696 INFO L125 PetriNetUnfolderBase]: For 16/18 co-relation queries the response was YES. [2024-11-12 16:35:07,700 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. [2024-11-12 16:35:07,711 INFO L140 encePairwiseOnDemand]: 507/515 looper letters, 326 selfloop transitions, 8 changer transitions 0/496 dead transitions. [2024-11-12 16:35:07,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 496 transitions, 1709 flow [2024-11-12 16:35:07,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-12 16:35:07,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-12 16:35:07,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1363 transitions. [2024-11-12 16:35:07,715 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44110032362459545 [2024-11-12 16:35:07,715 INFO L175 Difference]: Start difference. First operand has 329 places, 351 transitions, 751 flow. Second operand 6 states and 1363 transitions. [2024-11-12 16:35:07,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 496 transitions, 1709 flow [2024-11-12 16:35:07,717 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 496 transitions, 1699 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 16:35:07,721 INFO L231 Difference]: Finished difference. Result has 330 places, 350 transitions, 755 flow [2024-11-12 16:35:07,722 INFO L262 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} [2024-11-12 16:35:07,723 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -30 predicate places. [2024-11-12 16:35:07,723 INFO L471 AbstractCegarLoop]: Abstraction has has 330 places, 350 transitions, 755 flow [2024-11-12 16:35:07,723 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) [2024-11-12 16:35:07,724 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:07,724 INFO L206 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] [2024-11-12 16:35:07,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-12 16:35:07,724 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)] === [2024-11-12 16:35:07,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:07,724 INFO L85 PathProgramCache]: Analyzing trace with hash 709659854, now seen corresponding path program 1 times [2024-11-12 16:35:07,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:07,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1565730542] [2024-11-12 16:35:07,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:07,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:07,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:08,030 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 16:35:08,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:08,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1565730542] [2024-11-12 16:35:08,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1565730542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:08,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:08,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:08,031 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246195844] [2024-11-12 16:35:08,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:08,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 16:35:08,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:08,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 16:35:08,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-12 16:35:08,172 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:08,173 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) [2024-11-12 16:35:08,173 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:08,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:08,174 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:08,875 INFO L124 PetriNetUnfolderBase]: 1546/4340 cut-off events. [2024-11-12 16:35:08,875 INFO L125 PetriNetUnfolderBase]: For 140/142 co-relation queries the response was YES. [2024-11-12 16:35:08,880 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. [2024-11-12 16:35:08,889 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 181 selfloop transitions, 6 changer transitions 0/349 dead transitions. [2024-11-12 16:35:08,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 349 transitions, 1127 flow [2024-11-12 16:35:08,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:35:08,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:35:08,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1044 transitions. [2024-11-12 16:35:08,892 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4054368932038835 [2024-11-12 16:35:08,893 INFO L175 Difference]: Start difference. First operand has 330 places, 350 transitions, 755 flow. Second operand 5 states and 1044 transitions. [2024-11-12 16:35:08,893 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 349 transitions, 1127 flow [2024-11-12 16:35:08,894 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 328 places, 349 transitions, 1111 flow, removed 0 selfloop flow, removed 5 redundant places. [2024-11-12 16:35:08,897 INFO L231 Difference]: Finished difference. Result has 328 places, 349 transitions, 749 flow [2024-11-12 16:35:08,898 INFO L262 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} [2024-11-12 16:35:08,898 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-12 16:35:08,898 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 349 transitions, 749 flow [2024-11-12 16:35:08,899 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) [2024-11-12 16:35:08,899 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:08,899 INFO L206 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] [2024-11-12 16:35:08,899 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-12 16:35:08,899 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)] === [2024-11-12 16:35:08,899 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:08,899 INFO L85 PathProgramCache]: Analyzing trace with hash -916577378, now seen corresponding path program 1 times [2024-11-12 16:35:08,900 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:08,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480575745] [2024-11-12 16:35:08,900 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:08,900 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:09,331 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 16:35:09,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:09,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480575745] [2024-11-12 16:35:09,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480575745] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:09,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:09,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 16:35:09,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051112314] [2024-11-12 16:35:09,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:09,332 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-12 16:35:09,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:09,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-12 16:35:09,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-12 16:35:09,518 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-12 16:35:09,519 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) [2024-11-12 16:35:09,519 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:09,519 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-12 16:35:09,519 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:10,243 INFO L124 PetriNetUnfolderBase]: 1546/4336 cut-off events. [2024-11-12 16:35:10,243 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-11-12 16:35:10,248 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. [2024-11-12 16:35:10,256 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 182 selfloop transitions, 6 changer transitions 0/347 dead transitions. [2024-11-12 16:35:10,256 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 330 places, 347 transitions, 1121 flow [2024-11-12 16:35:10,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 16:35:10,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 16:35:10,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1031 transitions. [2024-11-12 16:35:10,259 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4003883495145631 [2024-11-12 16:35:10,259 INFO L175 Difference]: Start difference. First operand has 328 places, 349 transitions, 749 flow. Second operand 5 states and 1031 transitions. [2024-11-12 16:35:10,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 330 places, 347 transitions, 1121 flow [2024-11-12 16:35:10,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 347 transitions, 1109 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:35:10,263 INFO L231 Difference]: Finished difference. Result has 326 places, 347 transitions, 745 flow [2024-11-12 16:35:10,264 INFO L262 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} [2024-11-12 16:35:10,264 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -34 predicate places. [2024-11-12 16:35:10,264 INFO L471 AbstractCegarLoop]: Abstraction has has 326 places, 347 transitions, 745 flow [2024-11-12 16:35:10,265 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) [2024-11-12 16:35:10,265 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:10,265 INFO L206 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] [2024-11-12 16:35:10,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-12 16:35:10,265 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)] === [2024-11-12 16:35:10,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:10,266 INFO L85 PathProgramCache]: Analyzing trace with hash -916577379, now seen corresponding path program 1 times [2024-11-12 16:35:10,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:10,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872556462] [2024-11-12 16:35:10,266 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:10,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:10,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:10,375 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-12 16:35:10,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:10,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872556462] [2024-11-12 16:35:10,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872556462] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:10,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:10,376 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:35:10,376 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1196692136] [2024-11-12 16:35:10,376 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:10,376 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:35:10,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:10,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:35:10,377 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:35:10,433 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-12 16:35:10,434 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) [2024-11-12 16:35:10,434 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:10,434 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-12 16:35:10,434 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:11,010 INFO L124 PetriNetUnfolderBase]: 1536/4221 cut-off events. [2024-11-12 16:35:11,011 INFO L125 PetriNetUnfolderBase]: For 10/12 co-relation queries the response was YES. [2024-11-12 16:35:11,016 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. [2024-11-12 16:35:11,026 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 329 selfloop transitions, 5 changer transitions 0/491 dead transitions. [2024-11-12 16:35:11,026 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 491 transitions, 1701 flow [2024-11-12 16:35:11,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:35:11,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:35:11,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1008 transitions. [2024-11-12 16:35:11,032 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.4893203883495146 [2024-11-12 16:35:11,032 INFO L175 Difference]: Start difference. First operand has 326 places, 347 transitions, 745 flow. Second operand 4 states and 1008 transitions. [2024-11-12 16:35:11,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 491 transitions, 1701 flow [2024-11-12 16:35:11,034 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 323 places, 491 transitions, 1689 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-11-12 16:35:11,038 INFO L231 Difference]: Finished difference. Result has 323 places, 345 transitions, 739 flow [2024-11-12 16:35:11,038 INFO L262 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} [2024-11-12 16:35:11,038 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -37 predicate places. [2024-11-12 16:35:11,039 INFO L471 AbstractCegarLoop]: Abstraction has has 323 places, 345 transitions, 739 flow [2024-11-12 16:35:11,039 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) [2024-11-12 16:35:11,039 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:11,039 INFO L206 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] [2024-11-12 16:35:11,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-12 16:35:11,040 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)] === [2024-11-12 16:35:11,040 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:11,040 INFO L85 PathProgramCache]: Analyzing trace with hash 832633426, now seen corresponding path program 1 times [2024-11-12 16:35:11,040 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:11,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646996850] [2024-11-12 16:35:11,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:11,040 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:11,119 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-12 16:35:11,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:11,119 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646996850] [2024-11-12 16:35:11,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646996850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:35:11,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1254089652] [2024-11-12 16:35:11,120 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:11,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:35:11,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:35:11,121 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) [2024-11-12 16:35:11,122 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-12 16:35:11,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:11,300 INFO L256 TraceCheckSpWp]: Trace formula consists of 451 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-12 16:35:11,302 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:35:11,353 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 2 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-12 16:35:11,354 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:35:11,417 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-12 16:35:11,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1254089652] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:35:11,417 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:35:11,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 4] total 9 [2024-11-12 16:35:11,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462509025] [2024-11-12 16:35:11,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:35:11,418 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-12 16:35:11,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:11,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-12 16:35:11,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-12 16:35:11,421 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 172 out of 515 [2024-11-12 16:35:11,423 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) [2024-11-12 16:35:11,423 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:11,423 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 172 of 515 [2024-11-12 16:35:11,423 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:12,495 INFO L124 PetriNetUnfolderBase]: 1549/4358 cut-off events. [2024-11-12 16:35:12,495 INFO L125 PetriNetUnfolderBase]: For 143/145 co-relation queries the response was YES. [2024-11-12 16:35:12,501 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. [2024-11-12 16:35:12,511 INFO L140 encePairwiseOnDemand]: 509/515 looper letters, 206 selfloop transitions, 8 changer transitions 0/372 dead transitions. [2024-11-12 16:35:12,511 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 329 places, 372 transitions, 1233 flow [2024-11-12 16:35:12,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-12 16:35:12,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-11-12 16:35:12,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1420 transitions. [2024-11-12 16:35:12,514 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.39389736477115117 [2024-11-12 16:35:12,514 INFO L175 Difference]: Start difference. First operand has 323 places, 345 transitions, 739 flow. Second operand 7 states and 1420 transitions. [2024-11-12 16:35:12,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 329 places, 372 transitions, 1233 flow [2024-11-12 16:35:12,516 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 372 transitions, 1215 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 16:35:12,519 INFO L231 Difference]: Finished difference. Result has 329 places, 347 transitions, 767 flow [2024-11-12 16:35:12,520 INFO L262 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} [2024-11-12 16:35:12,520 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -31 predicate places. [2024-11-12 16:35:12,520 INFO L471 AbstractCegarLoop]: Abstraction has has 329 places, 347 transitions, 767 flow [2024-11-12 16:35:12,521 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) [2024-11-12 16:35:12,521 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:12,521 INFO L206 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] [2024-11-12 16:35:12,535 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-12 16:35:12,722 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 [2024-11-12 16:35:12,722 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)] === [2024-11-12 16:35:12,722 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:12,723 INFO L85 PathProgramCache]: Analyzing trace with hash 1395893032, now seen corresponding path program 2 times [2024-11-12 16:35:12,723 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:12,723 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321336879] [2024-11-12 16:35:12,723 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:12,723 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:12,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:13,027 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-12 16:35:13,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:13,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321336879] [2024-11-12 16:35:13,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1321336879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:13,028 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:13,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 16:35:13,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028072283] [2024-11-12 16:35:13,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:13,029 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 16:35:13,029 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:13,030 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 16:35:13,030 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 16:35:13,095 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 515 [2024-11-12 16:35:13,095 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) [2024-11-12 16:35:13,096 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:13,096 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 515 [2024-11-12 16:35:13,096 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:13,925 INFO L124 PetriNetUnfolderBase]: 1654/5609 cut-off events. [2024-11-12 16:35:13,926 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-12 16:35:13,933 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. [2024-11-12 16:35:13,944 INFO L140 encePairwiseOnDemand]: 508/515 looper letters, 478 selfloop transitions, 5 changer transitions 0/639 dead transitions. [2024-11-12 16:35:13,944 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 639 transitions, 2317 flow [2024-11-12 16:35:13,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 16:35:13,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 16:35:13,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1159 transitions. [2024-11-12 16:35:13,946 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5626213592233009 [2024-11-12 16:35:13,946 INFO L175 Difference]: Start difference. First operand has 329 places, 347 transitions, 767 flow. Second operand 4 states and 1159 transitions. [2024-11-12 16:35:13,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 639 transitions, 2317 flow [2024-11-12 16:35:13,949 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 639 transitions, 2299 flow, removed 4 selfloop flow, removed 5 redundant places. [2024-11-12 16:35:13,953 INFO L231 Difference]: Finished difference. Result has 328 places, 347 transitions, 771 flow [2024-11-12 16:35:13,953 INFO L262 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} [2024-11-12 16:35:13,954 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -32 predicate places. [2024-11-12 16:35:13,954 INFO L471 AbstractCegarLoop]: Abstraction has has 328 places, 347 transitions, 771 flow [2024-11-12 16:35:13,954 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) [2024-11-12 16:35:13,954 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:13,955 INFO L206 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] [2024-11-12 16:35:13,955 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-12 16:35:13,955 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)] === [2024-11-12 16:35:13,955 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:13,955 INFO L85 PathProgramCache]: Analyzing trace with hash -368938041, now seen corresponding path program 1 times [2024-11-12 16:35:13,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:13,956 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1759451046] [2024-11-12 16:35:13,956 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:13,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:14,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 16:35:14,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1759451046] [2024-11-12 16:35:14,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1759451046] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-12 16:35:14,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [184796607] [2024-11-12 16:35:14,363 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:14,363 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-12 16:35:14,363 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 16:35:14,367 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) [2024-11-12 16:35:14,368 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-12 16:35:14,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:14,589 INFO L256 TraceCheckSpWp]: Trace formula consists of 748 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-12 16:35:14,592 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-12 16:35:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 16:35:14,652 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-12 16:35:14,802 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 38 proven. 13 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-12 16:35:14,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [184796607] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-12 16:35:14,803 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-12 16:35:14,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 9] total 17 [2024-11-12 16:35:14,804 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599216291] [2024-11-12 16:35:14,806 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-12 16:35:14,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-12 16:35:14,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:14,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-12 16:35:14,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=227, Unknown=0, NotChecked=0, Total=272 [2024-11-12 16:35:19,001 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 [] [2024-11-12 16:35:19,054 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 169 out of 515 [2024-11-12 16:35:19,056 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) [2024-11-12 16:35:19,056 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:19,056 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 169 of 515 [2024-11-12 16:35:19,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:20,741 INFO L124 PetriNetUnfolderBase]: 1550/4392 cut-off events. [2024-11-12 16:35:20,741 INFO L125 PetriNetUnfolderBase]: For 1008/1010 co-relation queries the response was YES. [2024-11-12 16:35:20,751 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. [2024-11-12 16:35:20,763 INFO L140 encePairwiseOnDemand]: 504/515 looper letters, 220 selfloop transitions, 27 changer transitions 0/401 dead transitions. [2024-11-12 16:35:20,763 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 401 transitions, 1391 flow [2024-11-12 16:35:20,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-12 16:35:20,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2024-11-12 16:35:20,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 3288 transitions. [2024-11-12 16:35:20,770 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.3546925566343042 [2024-11-12 16:35:20,770 INFO L175 Difference]: Start difference. First operand has 328 places, 347 transitions, 771 flow. Second operand 18 states and 3288 transitions. [2024-11-12 16:35:20,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 401 transitions, 1391 flow [2024-11-12 16:35:20,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 401 transitions, 1386 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 16:35:20,776 INFO L231 Difference]: Finished difference. Result has 353 places, 371 transitions, 949 flow [2024-11-12 16:35:20,777 INFO L262 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} [2024-11-12 16:35:20,777 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -7 predicate places. [2024-11-12 16:35:20,777 INFO L471 AbstractCegarLoop]: Abstraction has has 353 places, 371 transitions, 949 flow [2024-11-12 16:35:20,778 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) [2024-11-12 16:35:20,778 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:20,778 INFO L206 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] [2024-11-12 16:35:20,795 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-12 16:35:20,979 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 [2024-11-12 16:35:20,979 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)] === [2024-11-12 16:35:20,980 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:20,980 INFO L85 PathProgramCache]: Analyzing trace with hash 443305544, now seen corresponding path program 1 times [2024-11-12 16:35:20,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:20,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2146081692] [2024-11-12 16:35:20,980 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:20,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:21,182 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 41 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-12 16:35:21,182 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:21,182 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2146081692] [2024-11-12 16:35:21,182 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2146081692] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:21,182 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:21,183 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 16:35:21,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132742417] [2024-11-12 16:35:21,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:21,183 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:35:21,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:21,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:35:21,184 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:35:21,186 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 170 out of 515 [2024-11-12 16:35:21,187 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) [2024-11-12 16:35:21,187 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:21,187 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 170 of 515 [2024-11-12 16:35:21,187 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 16:35:21,941 INFO L124 PetriNetUnfolderBase]: 1542/4364 cut-off events. [2024-11-12 16:35:21,941 INFO L125 PetriNetUnfolderBase]: For 812/814 co-relation queries the response was YES. [2024-11-12 16:35:21,948 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. [2024-11-12 16:35:21,955 INFO L140 encePairwiseOnDemand]: 512/515 looper letters, 201 selfloop transitions, 6 changer transitions 0/361 dead transitions. [2024-11-12 16:35:21,955 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 361 transitions, 1319 flow [2024-11-12 16:35:21,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 16:35:21,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 16:35:21,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 693 transitions. [2024-11-12 16:35:21,957 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.44854368932038835 [2024-11-12 16:35:21,957 INFO L175 Difference]: Start difference. First operand has 353 places, 371 transitions, 949 flow. Second operand 3 states and 693 transitions. [2024-11-12 16:35:21,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 361 transitions, 1319 flow [2024-11-12 16:35:21,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 361 transitions, 1296 flow, removed 6 selfloop flow, removed 5 redundant places. [2024-11-12 16:35:21,962 INFO L231 Difference]: Finished difference. Result has 346 places, 361 transitions, 894 flow [2024-11-12 16:35:21,963 INFO L262 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} [2024-11-12 16:35:21,963 INFO L279 CegarLoopForPetriNet]: 360 programPoint places, -14 predicate places. [2024-11-12 16:35:21,963 INFO L471 AbstractCegarLoop]: Abstraction has has 346 places, 361 transitions, 894 flow [2024-11-12 16:35:21,963 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) [2024-11-12 16:35:21,963 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:21,963 INFO L206 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] [2024-11-12 16:35:21,964 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-12 16:35:21,964 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)] === [2024-11-12 16:35:21,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:21,964 INFO L85 PathProgramCache]: Analyzing trace with hash -897610528, now seen corresponding path program 1 times [2024-11-12 16:35:21,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:21,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514098784] [2024-11-12 16:35:21,964 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:21,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:22,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:35:22,094 INFO L357 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-12 16:35:22,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-12 16:35:22,254 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-12 16:35:22,254 INFO L339 BasicCegarLoop]: Counterexample is feasible [2024-11-12 16:35:22,255 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (153 of 154 remaining) [2024-11-12 16:35:22,257 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (152 of 154 remaining) [2024-11-12 16:35:22,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (151 of 154 remaining) [2024-11-12 16:35:22,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (150 of 154 remaining) [2024-11-12 16:35:22,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (149 of 154 remaining) [2024-11-12 16:35:22,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (148 of 154 remaining) [2024-11-12 16:35:22,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (147 of 154 remaining) [2024-11-12 16:35:22,258 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (146 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONMEMORY_LEAK (145 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (144 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (143 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONMEMORY_LEAK (142 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONMEMORY_LEAK (141 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (140 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (139 of 154 remaining) [2024-11-12 16:35:22,259 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20ASSERT_VIOLATIONMEMORY_LEAK (138 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (137 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (136 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22ASSERT_VIOLATIONMEMORY_LEAK (135 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21ASSERT_VIOLATIONMEMORY_LEAK (134 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (133 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (132 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (131 of 154 remaining) [2024-11-12 16:35:22,260 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (130 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (129 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (128 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (127 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (126 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (125 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONMEMORY_LEAK (124 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (123 of 154 remaining) [2024-11-12 16:35:22,261 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (122 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (121 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (120 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37ASSERT_VIOLATIONMEMORY_LEAK (119 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (118 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (117 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (116 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (115 of 154 remaining) [2024-11-12 16:35:22,262 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (114 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (113 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (112 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (111 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40ASSERT_VIOLATIONMEMORY_LEAK (110 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (109 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (108 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONMEMORY_LEAK (107 of 154 remaining) [2024-11-12 16:35:22,263 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (106 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (105 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONMEMORY_LEAK (104 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (103 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (102 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (101 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (100 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (99 of 154 remaining) [2024-11-12 16:35:22,264 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (98 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (97 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (96 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONMEMORY_LEAK (95 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (94 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (93 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (92 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (91 of 154 remaining) [2024-11-12 16:35:22,265 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47ASSERT_VIOLATIONMEMORY_LEAK (90 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (89 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (88 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51ASSERT_VIOLATIONMEMORY_LEAK (87 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50ASSERT_VIOLATIONMEMORY_LEAK (86 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (85 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (84 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (83 of 154 remaining) [2024-11-12 16:35:22,266 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (82 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54ASSERT_VIOLATIONMEMORY_LEAK (81 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (80 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (79 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (78 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (77 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (76 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (75 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (74 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (73 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (72 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (71 of 154 remaining) [2024-11-12 16:35:22,267 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (70 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (69 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (68 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (67 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (66 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (65 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (64 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (63 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0ASSERT_VIOLATIONMEMORY_LEAK (62 of 154 remaining) [2024-11-12 16:35:22,268 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (61 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (60 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1ASSERT_VIOLATIONMEMORY_LEAK (59 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr38REQUIRES_VIOLATIONMEMORY_DEREFERENCE (58 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr39REQUIRES_VIOLATIONMEMORY_DEREFERENCE (57 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr41REQUIRES_VIOLATIONMEMORY_DEREFERENCE (56 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr42REQUIRES_VIOLATIONMEMORY_DEREFERENCE (55 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr37ASSERT_VIOLATIONMEMORY_LEAK (54 of 154 remaining) [2024-11-12 16:35:22,269 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr43REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr44REQUIRES_VIOLATIONMEMORY_DEREFERENCE (50 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (49 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (48 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 154 remaining) [2024-11-12 16:35:22,270 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr40ASSERT_VIOLATIONMEMORY_LEAK (45 of 154 remaining) [2024-11-12 16:35:22,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 154 remaining) [2024-11-12 16:35:22,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 154 remaining) [2024-11-12 16:35:22,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12ASSERT_VIOLATIONMEMORY_LEAK (42 of 154 remaining) [2024-11-12 16:35:22,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr27REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 154 remaining) [2024-11-12 16:35:22,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr28REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 154 remaining) [2024-11-12 16:35:22,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13ASSERT_VIOLATIONMEMORY_LEAK (39 of 154 remaining) [2024-11-12 16:35:22,271 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr45REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr46REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr24REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr25REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr26REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr29REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr30REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 154 remaining) [2024-11-12 16:35:22,272 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14ASSERT_VIOLATIONMEMORY_LEAK (30 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr48REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr49REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr31REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr32REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr47ASSERT_VIOLATIONMEMORY_LEAK (25 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr52REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr53REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr51ASSERT_VIOLATIONMEMORY_LEAK (22 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr50ASSERT_VIOLATIONMEMORY_LEAK (21 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr35REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr36REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 154 remaining) [2024-11-12 16:35:22,273 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr54ASSERT_VIOLATIONMEMORY_LEAK (16 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr33REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr34REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr55REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr56REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr61REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr62REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr57REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 154 remaining) [2024-11-12 16:35:22,274 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr58REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 154 remaining) [2024-11-12 16:35:22,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr59REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 154 remaining) [2024-11-12 16:35:22,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr60REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 154 remaining) [2024-11-12 16:35:22,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr63REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 154 remaining) [2024-11-12 16:35:22,275 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr64REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 154 remaining) [2024-11-12 16:35:22,275 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-12 16:35:22,275 INFO L421 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 16:35:22,278 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-12 16:35:22,279 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-12 16:35:22,431 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 16:35:22,437 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 621 places, 892 transitions, 1800 flow [2024-11-12 16:35:22,587 INFO L124 PetriNetUnfolderBase]: 311/1013 cut-off events. [2024-11-12 16:35:22,588 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-12 16:35:22,618 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. [2024-11-12 16:35:22,618 INFO L82 GeneralOperation]: Start removeDead. Operand has 621 places, 892 transitions, 1800 flow [2024-11-12 16:35:22,648 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 621 places, 892 transitions, 1800 flow [2024-11-12 16:35:22,648 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 16:35:22,649 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;@48d8dd69, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 16:35:22,650 INFO L334 AbstractCegarLoop]: Starting to check reachability of 219 error locations. [2024-11-12 16:35:22,651 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 16:35:22,651 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-11-12 16:35:22,651 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 16:35:22,651 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 16:35:22,652 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-11-12 16:35:22,652 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)] === [2024-11-12 16:35:22,652 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 16:35:22,652 INFO L85 PathProgramCache]: Analyzing trace with hash 127811, now seen corresponding path program 1 times [2024-11-12 16:35:22,652 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 16:35:22,652 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216215401] [2024-11-12 16:35:22,653 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 16:35:22,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 16:35:22,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 16:35:22,717 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 16:35:22,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 16:35:22,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216215401] [2024-11-12 16:35:22,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216215401] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 16:35:22,717 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 16:35:22,717 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-12 16:35:22,717 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136936380] [2024-11-12 16:35:22,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 16:35:22,718 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 16:35:22,718 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 16:35:22,718 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 16:35:22,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 16:35:22,784 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 892 [2024-11-12 16:35:22,785 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) [2024-11-12 16:35:22,785 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 16:35:22,785 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 892 [2024-11-12 16:35:22,785 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand