./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/libvsync/ticketlock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version c7c6ca5d 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/ticketlock.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 8e9f7836ebdfb0849cf7f06257ab1fd414077ad21cfcb006a14459421df712fb --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-09 10:59:26,954 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 10:59:27,019 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2024-11-09 10:59:27,028 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 10:59:27,029 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 10:59:27,062 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 10:59:27,063 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 10:59:27,064 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 10:59:27,064 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 10:59:27,066 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 10:59:27,066 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 10:59:27,067 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 10:59:27,067 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 10:59:27,067 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 10:59:27,069 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 10:59:27,070 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 10:59:27,070 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 10:59:27,070 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 10:59:27,070 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 10:59:27,071 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 10:59:27,071 INFO L153 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2024-11-09 10:59:27,074 INFO L153 SettingsManager]: * Bitprecise bitfields=true [2024-11-09 10:59:27,074 INFO L153 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2024-11-09 10:59:27,075 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 10:59:27,075 INFO L153 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2024-11-09 10:59:27,075 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 10:59:27,075 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-09 10:59:27,076 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 10:59:27,076 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 10:59:27,076 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-09 10:59:27,076 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 10:59:27,077 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 10:59:27,077 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 10:59:27,077 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:59:27,077 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 10:59:27,078 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 10:59:27,078 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 10:59:27,078 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 10:59:27,078 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 10:59:27,079 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 10:59:27,079 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 10:59:27,080 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 10:59:27,080 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e9f7836ebdfb0849cf7f06257ab1fd414077ad21cfcb006a14459421df712fb [2024-11-09 10:59:27,318 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 10:59:27,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 10:59:27,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 10:59:27,352 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 10:59:27,353 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 10:59:27,354 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/libvsync/ticketlock.i [2024-11-09 10:59:28,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 10:59:29,287 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 10:59:29,288 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/libvsync/ticketlock.i [2024-11-09 10:59:29,339 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beaf3e406/cd1a57ab8fcf4c22ad7cd4e07e419a39/FLAG8bdf8e264 [2024-11-09 10:59:29,445 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/beaf3e406/cd1a57ab8fcf4c22ad7cd4e07e419a39 [2024-11-09 10:59:29,447 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 10:59:29,449 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 10:59:29,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 10:59:29,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 10:59:29,458 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 10:59:29,459 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:59:29" (1/1) ... [2024-11-09 10:59:29,459 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48149b52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:29, skipping insertion in model container [2024-11-09 10:59:29,460 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 10:59:29" (1/1) ... [2024-11-09 10:59:29,604 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 10:59:31,142 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:59:31,147 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:59:31,147 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:59:31,156 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:59:31,157 WARN L1070 CHandler]: saw a pointer cast to a type that we could not get a type size for, not adapting memory model [2024-11-09 10:59:31,489 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:59:31,498 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 10:59:31,578 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3755] [2024-11-09 10:59:31,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3757] [2024-11-09 10:59:31,583 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3762] [2024-11-09 10:59:31,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3764] [2024-11-09 10:59:31,584 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3770] [2024-11-09 10:59:31,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3772] [2024-11-09 10:59:31,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3778] [2024-11-09 10:59:31,585 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3780] [2024-11-09 10:59:31,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3786] [2024-11-09 10:59:31,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3788] [2024-11-09 10:59:31,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3794] [2024-11-09 10:59:31,586 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3796] [2024-11-09 10:59:31,587 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3802] [2024-11-09 10:59:31,590 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3804] [2024-11-09 10:59:31,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3810] [2024-11-09 10:59:31,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3812] [2024-11-09 10:59:31,591 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3817] [2024-11-09 10:59:31,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3819] [2024-11-09 10:59:31,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3824] [2024-11-09 10:59:31,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3826] [2024-11-09 10:59:31,592 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3831] [2024-11-09 10:59:31,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3833] [2024-11-09 10:59:31,593 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3838] [2024-11-09 10:59:31,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3840] [2024-11-09 10:59:31,594 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3845] [2024-11-09 10:59:31,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3847] [2024-11-09 10:59:31,595 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3852] [2024-11-09 10:59:31,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3855] [2024-11-09 10:59:31,596 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3861] [2024-11-09 10:59:31,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3864] [2024-11-09 10:59:31,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3870] [2024-11-09 10:59:31,597 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3873] [2024-11-09 10:59:31,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3879] [2024-11-09 10:59:31,598 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3882] [2024-11-09 10:59:31,599 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3888] [2024-11-09 10:59:31,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3891] [2024-11-09 10:59:31,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3897] [2024-11-09 10:59:31,600 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3900] [2024-11-09 10:59:31,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3907] [2024-11-09 10:59:31,601 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3910] [2024-11-09 10:59:31,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3917] [2024-11-09 10:59:31,602 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3920] [2024-11-09 10:59:31,603 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3927] [2024-11-09 10:59:31,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3930] [2024-11-09 10:59:31,604 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3937] [2024-11-09 10:59:31,605 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3940] [2024-11-09 10:59:31,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3947] [2024-11-09 10:59:31,606 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3950] [2024-11-09 10:59:31,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3957] [2024-11-09 10:59:31,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3960] [2024-11-09 10:59:31,607 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3966] [2024-11-09 10:59:31,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3969] [2024-11-09 10:59:31,608 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3975] [2024-11-09 10:59:31,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3978] [2024-11-09 10:59:31,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3984] [2024-11-09 10:59:31,610 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3987] [2024-11-09 10:59:31,611 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3993] [2024-11-09 10:59:31,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [3996] [2024-11-09 10:59:31,612 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4002] [2024-11-09 10:59:31,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4005] [2024-11-09 10:59:31,613 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4011] [2024-11-09 10:59:31,614 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4014] [2024-11-09 10:59:31,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4020] [2024-11-09 10:59:31,615 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4023] [2024-11-09 10:59:31,618 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4029] [2024-11-09 10:59:31,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4032] [2024-11-09 10:59:31,619 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4038] [2024-11-09 10:59:31,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4041] [2024-11-09 10:59:31,620 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4047] [2024-11-09 10:59:31,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4050] [2024-11-09 10:59:31,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4056] [2024-11-09 10:59:31,621 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4059] [2024-11-09 10:59:31,622 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4065] [2024-11-09 10:59:31,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4068] [2024-11-09 10:59:31,623 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4074] [2024-11-09 10:59:31,624 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4077] [2024-11-09 10:59:31,625 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4083] [2024-11-09 10:59:31,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4086] [2024-11-09 10:59:31,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4092] [2024-11-09 10:59:31,626 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4095] [2024-11-09 10:59:31,627 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4101] [2024-11-09 10:59:31,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4103] [2024-11-09 10:59:31,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4109] [2024-11-09 10:59:31,628 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4111] [2024-11-09 10:59:31,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4117] [2024-11-09 10:59:31,629 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4119] [2024-11-09 10:59:31,630 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4125] [2024-11-09 10:59:31,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4127] [2024-11-09 10:59:31,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4133] [2024-11-09 10:59:31,631 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4135] [2024-11-09 10:59:31,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4141] [2024-11-09 10:59:31,632 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4143] [2024-11-09 10:59:31,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4149] [2024-11-09 10:59:31,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4151] [2024-11-09 10:59:31,633 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4157] [2024-11-09 10:59:31,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4159] [2024-11-09 10:59:31,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4165] [2024-11-09 10:59:31,634 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4167] [2024-11-09 10:59:31,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4173] [2024-11-09 10:59:31,635 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring inline assembler instruction C: __asm__ __volatile__("" ::: "memory"); [4175] [2024-11-09 10:59:31,699 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 10:59:32,140 INFO L204 MainTranslator]: Completed translation [2024-11-09 10:59:32,140 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32 WrapperNode [2024-11-09 10:59:32,140 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 10:59:32,141 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 10:59:32,142 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 10:59:32,142 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 10:59:32,147 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,236 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,305 INFO L138 Inliner]: procedures = 918, calls = 924, calls flagged for inlining = 825, calls inlined = 41, statements flattened = 408 [2024-11-09 10:59:32,306 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 10:59:32,306 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 10:59:32,306 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 10:59:32,306 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 10:59:32,318 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,322 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,350 INFO L175 MemorySlicer]: Split 14 memory accesses to 3 slices as follows [2, 10, 2]. 71 percent of accesses are in the largest equivalence class. The 4 initializations are split as follows [2, 2, 0]. The 4 writes are split as follows [0, 3, 1]. [2024-11-09 10:59:32,350 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,350 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,363 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,375 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,378 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,384 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,392 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 10:59:32,397 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-09 10:59:32,397 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-09 10:59:32,398 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-09 10:59:32,398 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (1/1) ... [2024-11-09 10:59:32,411 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 10:59:32,430 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 10:59:32,453 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) [2024-11-09 10:59:32,457 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 [2024-11-09 10:59:32,503 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 10:59:32,504 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 10:59:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-09 10:59:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 10:59:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 10:59:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 10:59:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure run [2024-11-09 10:59:32,505 INFO L138 BoogieDeclarations]: Found implementation of procedure run [2024-11-09 10:59:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 10:59:32,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 10:59:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 10:59:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-09 10:59:32,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 10:59:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 10:59:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 10:59:32,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-09 10:59:32,509 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-09 10:59:32,699 INFO L238 CfgBuilder]: Building ICFG [2024-11-09 10:59:32,703 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 10:59:33,302 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-09 10:59:33,302 INFO L287 CfgBuilder]: Performing block encoding [2024-11-09 10:59:33,574 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 10:59:33,574 INFO L316 CfgBuilder]: Removed 73 assume(true) statements. [2024-11-09 10:59:33,575 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:59:33 BoogieIcfgContainer [2024-11-09 10:59:33,577 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-09 10:59:33,579 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 10:59:33,580 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 10:59:33,583 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 10:59:33,583 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 10:59:29" (1/3) ... [2024-11-09 10:59:33,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299cf0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:59:33, skipping insertion in model container [2024-11-09 10:59:33,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 10:59:32" (2/3) ... [2024-11-09 10:59:33,584 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299cf0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 10:59:33, skipping insertion in model container [2024-11-09 10:59:33,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.11 10:59:33" (3/3) ... [2024-11-09 10:59:33,586 INFO L112 eAbstractionObserver]: Analyzing ICFG ticketlock.i [2024-11-09 10:59:33,604 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:None NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 10:59:33,605 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 23 error locations. [2024-11-09 10:59:33,605 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-09 10:59:33,747 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-11-09 10:59:33,793 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 135 places, 202 transitions, 411 flow [2024-11-09 10:59:33,874 INFO L124 PetriNetUnfolderBase]: 83/246 cut-off events. [2024-11-09 10:59:33,875 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:59:33,885 INFO L83 FinitePrefix]: Finished finitePrefix Result has 251 conditions, 246 events. 83/246 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 880 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 186. Up to 6 conditions per place. [2024-11-09 10:59:33,885 INFO L82 GeneralOperation]: Start removeDead. Operand has 135 places, 202 transitions, 411 flow [2024-11-09 10:59:33,896 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 135 places, 202 transitions, 411 flow [2024-11-09 10:59:33,906 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:59:33,916 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;@1c6f9983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:59:33,917 INFO L334 AbstractCegarLoop]: Starting to check reachability of 40 error locations. [2024-11-09 10:59:33,922 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:59:33,922 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-11-09 10:59:33,922 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:59:33,923 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:33,924 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 10:59:33,925 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:59:33,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:33,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1213887652, now seen corresponding path program 1 times [2024-11-09 10:59:33,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:33,945 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965729597] [2024-11-09 10:59:33,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:33,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:34,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:34,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:34,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:34,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965729597] [2024-11-09 10:59:34,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1965729597] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:34,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:34,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:59:34,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933615765] [2024-11-09 10:59:34,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:34,132 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 10:59:34,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:34,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 10:59:34,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 10:59:34,170 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 202 [2024-11-09 10:59:34,173 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 135 places, 202 transitions, 411 flow. Second operand has 2 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 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) [2024-11-09 10:59:34,174 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:34,174 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 202 [2024-11-09 10:59:34,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:34,636 INFO L124 PetriNetUnfolderBase]: 629/1663 cut-off events. [2024-11-09 10:59:34,637 INFO L125 PetriNetUnfolderBase]: For 4/6 co-relation queries the response was YES. [2024-11-09 10:59:34,641 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2916 conditions, 1663 events. 629/1663 cut-off events. For 4/6 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 11213 event pairs, 540 based on Foata normal form. 909/2260 useless extension candidates. Maximal degree in co-relation 2852. Up to 1248 conditions per place. [2024-11-09 10:59:34,651 INFO L140 encePairwiseOnDemand]: 137/202 looper letters, 78 selfloop transitions, 0 changer transitions 0/135 dead transitions. [2024-11-09 10:59:34,651 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 135 transitions, 433 flow [2024-11-09 10:59:34,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 10:59:34,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 10:59:34,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 257 transitions. [2024-11-09 10:59:34,663 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6361386138613861 [2024-11-09 10:59:34,665 INFO L175 Difference]: Start difference. First operand has 135 places, 202 transitions, 411 flow. Second operand 2 states and 257 transitions. [2024-11-09 10:59:34,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 135 transitions, 433 flow [2024-11-09 10:59:34,669 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 135 transitions, 433 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 10:59:34,672 INFO L231 Difference]: Finished difference. Result has 130 places, 135 transitions, 277 flow [2024-11-09 10:59:34,674 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=277, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=135, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=277, PETRI_PLACES=130, PETRI_TRANSITIONS=135} [2024-11-09 10:59:34,677 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -5 predicate places. [2024-11-09 10:59:34,677 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 135 transitions, 277 flow [2024-11-09 10:59:34,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 59.0) internal successors, (118), 2 states have internal predecessors, (118), 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) [2024-11-09 10:59:34,678 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:34,678 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:34,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 10:59:34,679 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:59:34,679 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:34,679 INFO L85 PathProgramCache]: Analyzing trace with hash 2008088479, now seen corresponding path program 1 times [2024-11-09 10:59:34,680 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:34,680 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954895298] [2024-11-09 10:59:34,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:34,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:34,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:34,843 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:34,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:34,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954895298] [2024-11-09 10:59:34,846 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [954895298] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:34,846 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:34,846 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:59:34,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821405633] [2024-11-09 10:59:34,846 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:34,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:59:34,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:34,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:59:34,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:59:34,866 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 202 [2024-11-09 10:59:34,869 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 135 transitions, 277 flow. Second operand has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-09 10:59:34,870 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:34,870 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 202 [2024-11-09 10:59:34,870 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:35,318 INFO L124 PetriNetUnfolderBase]: 753/1934 cut-off events. [2024-11-09 10:59:35,319 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-09 10:59:35,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3424 conditions, 1934 events. 753/1934 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 13494 event pairs, 540 based on Foata normal form. 0/1604 useless extension candidates. Maximal degree in co-relation 3420. Up to 1247 conditions per place. [2024-11-09 10:59:35,329 INFO L140 encePairwiseOnDemand]: 198/202 looper letters, 140 selfloop transitions, 2 changer transitions 0/195 dead transitions. [2024-11-09 10:59:35,329 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 195 transitions, 681 flow [2024-11-09 10:59:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 10:59:35,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 10:59:35,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 303 transitions. [2024-11-09 10:59:35,335 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5 [2024-11-09 10:59:35,336 INFO L175 Difference]: Start difference. First operand has 130 places, 135 transitions, 277 flow. Second operand 3 states and 303 transitions. [2024-11-09 10:59:35,336 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 195 transitions, 681 flow [2024-11-09 10:59:35,338 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 195 transitions, 681 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 10:59:35,343 INFO L231 Difference]: Finished difference. Result has 130 places, 133 transitions, 277 flow [2024-11-09 10:59:35,343 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=273, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=277, PETRI_PLACES=130, PETRI_TRANSITIONS=133} [2024-11-09 10:59:35,344 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -5 predicate places. [2024-11-09 10:59:35,344 INFO L471 AbstractCegarLoop]: Abstraction has has 130 places, 133 transitions, 277 flow [2024-11-09 10:59:35,345 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 54.666666666666664) internal successors, (164), 3 states have internal predecessors, (164), 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) [2024-11-09 10:59:35,345 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:35,345 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:35,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 10:59:35,346 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:59:35,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:35,348 INFO L85 PathProgramCache]: Analyzing trace with hash 2008088480, now seen corresponding path program 1 times [2024-11-09 10:59:35,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:35,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275246086] [2024-11-09 10:59:35,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:35,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:35,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:35,537 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:35,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:35,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275246086] [2024-11-09 10:59:35,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [275246086] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:35,538 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:35,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:59:35,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517159364] [2024-11-09 10:59:35,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:35,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 10:59:35,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:35,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 10:59:35,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 10:59:35,561 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 202 [2024-11-09 10:59:35,562 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 133 transitions, 277 flow. Second operand has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2024-11-09 10:59:35,562 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:35,563 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 202 [2024-11-09 10:59:35,563 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:36,070 INFO L124 PetriNetUnfolderBase]: 690/2350 cut-off events. [2024-11-09 10:59:36,070 INFO L125 PetriNetUnfolderBase]: For 59/59 co-relation queries the response was YES. [2024-11-09 10:59:36,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3777 conditions, 2350 events. 690/2350 cut-off events. For 59/59 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 19265 event pairs, 108 based on Foata normal form. 0/1981 useless extension candidates. Maximal degree in co-relation 3772. Up to 826 conditions per place. [2024-11-09 10:59:36,082 INFO L140 encePairwiseOnDemand]: 195/202 looper letters, 199 selfloop transitions, 5 changer transitions 0/257 dead transitions. [2024-11-09 10:59:36,082 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 132 places, 257 transitions, 933 flow [2024-11-09 10:59:36,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 10:59:36,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 10:59:36,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 426 transitions. [2024-11-09 10:59:36,086 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5272277227722773 [2024-11-09 10:59:36,086 INFO L175 Difference]: Start difference. First operand has 130 places, 133 transitions, 277 flow. Second operand 4 states and 426 transitions. [2024-11-09 10:59:36,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 132 places, 257 transitions, 933 flow [2024-11-09 10:59:36,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 130 places, 257 transitions, 929 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 10:59:36,101 INFO L231 Difference]: Finished difference. Result has 132 places, 133 transitions, 295 flow [2024-11-09 10:59:36,101 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=202, PETRI_DIFFERENCE_MINUEND_FLOW=271, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=132, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=295, PETRI_PLACES=132, PETRI_TRANSITIONS=133} [2024-11-09 10:59:36,103 INFO L277 CegarLoopForPetriNet]: 135 programPoint places, -3 predicate places. [2024-11-09 10:59:36,104 INFO L471 AbstractCegarLoop]: Abstraction has has 132 places, 133 transitions, 295 flow [2024-11-09 10:59:36,104 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.25) internal successors, (225), 4 states have internal predecessors, (225), 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) [2024-11-09 10:59:36,104 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:36,104 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:36,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 10:59:36,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 37 more)] === [2024-11-09 10:59:36,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1598253178, now seen corresponding path program 1 times [2024-11-09 10:59:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:36,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503389379] [2024-11-09 10:59:36,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:36,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:36,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:59:36,148 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 10:59:36,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 10:59:36,205 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 10:59:36,206 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 10:59:36,208 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (39 of 40 remaining) [2024-11-09 10:59:36,210 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 40 remaining) [2024-11-09 10:59:36,211 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 40 remaining) [2024-11-09 10:59:36,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 40 remaining) [2024-11-09 10:59:36,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 40 remaining) [2024-11-09 10:59:36,213 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (34 of 40 remaining) [2024-11-09 10:59:36,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (33 of 40 remaining) [2024-11-09 10:59:36,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (32 of 40 remaining) [2024-11-09 10:59:36,214 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 40 remaining) [2024-11-09 10:59:36,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 40 remaining) [2024-11-09 10:59:36,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 40 remaining) [2024-11-09 10:59:36,215 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 40 remaining) [2024-11-09 10:59:36,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 40 remaining) [2024-11-09 10:59:36,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 40 remaining) [2024-11-09 10:59:36,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 40 remaining) [2024-11-09 10:59:36,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 40 remaining) [2024-11-09 10:59:36,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 40 remaining) [2024-11-09 10:59:36,216 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 40 remaining) [2024-11-09 10:59:36,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 40 remaining) [2024-11-09 10:59:36,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 40 remaining) [2024-11-09 10:59:36,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 40 remaining) [2024-11-09 10:59:36,217 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 40 remaining) [2024-11-09 10:59:36,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 40 remaining) [2024-11-09 10:59:36,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 40 remaining) [2024-11-09 10:59:36,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 40 remaining) [2024-11-09 10:59:36,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 40 remaining) [2024-11-09 10:59:36,218 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 40 remaining) [2024-11-09 10:59:36,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 40 remaining) [2024-11-09 10:59:36,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 40 remaining) [2024-11-09 10:59:36,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 40 remaining) [2024-11-09 10:59:36,219 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 40 remaining) [2024-11-09 10:59:36,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 40 remaining) [2024-11-09 10:59:36,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 40 remaining) [2024-11-09 10:59:36,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 40 remaining) [2024-11-09 10:59:36,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 40 remaining) [2024-11-09 10:59:36,220 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 40 remaining) [2024-11-09 10:59:36,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 40 remaining) [2024-11-09 10:59:36,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 40 remaining) [2024-11-09 10:59:36,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 40 remaining) [2024-11-09 10:59:36,221 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 40 remaining) [2024-11-09 10:59:36,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 10:59:36,222 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 10:59:36,224 WARN L244 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 10:59:36,225 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2024-11-09 10:59:36,353 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-09 10:59:36,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 228 places, 345 transitions, 706 flow [2024-11-09 10:59:36,406 INFO L124 PetriNetUnfolderBase]: 157/466 cut-off events. [2024-11-09 10:59:36,406 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-11-09 10:59:36,419 INFO L83 FinitePrefix]: Finished finitePrefix Result has 478 conditions, 466 events. 157/466 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 2155 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 358. Up to 12 conditions per place. [2024-11-09 10:59:36,419 INFO L82 GeneralOperation]: Start removeDead. Operand has 228 places, 345 transitions, 706 flow [2024-11-09 10:59:36,432 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 228 places, 345 transitions, 706 flow [2024-11-09 10:59:36,433 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 10:59:36,434 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;@1c6f9983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 10:59:36,434 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-09 10:59:36,436 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 10:59:36,436 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-11-09 10:59:36,436 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 10:59:36,436 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:36,436 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 10:59:36,436 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-11-09 10:59:36,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:36,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1543122877, now seen corresponding path program 1 times [2024-11-09 10:59:36,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:36,437 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796351117] [2024-11-09 10:59:36,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:36,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:36,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:36,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:36,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796351117] [2024-11-09 10:59:36,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796351117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:36,459 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:36,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 10:59:36,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218815057] [2024-11-09 10:59:36,460 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:36,460 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 10:59:36,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:36,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 10:59:36,461 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 10:59:36,462 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 345 [2024-11-09 10:59:36,462 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 228 places, 345 transitions, 706 flow. Second operand has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2024-11-09 10:59:36,463 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:36,463 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 345 [2024-11-09 10:59:36,463 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:47,479 INFO L124 PetriNetUnfolderBase]: 73231/126282 cut-off events. [2024-11-09 10:59:47,479 INFO L125 PetriNetUnfolderBase]: For 486/498 co-relation queries the response was YES. [2024-11-09 10:59:47,747 INFO L83 FinitePrefix]: Finished finitePrefix Result has 234129 conditions, 126282 events. 73231/126282 cut-off events. For 486/498 co-relation queries the response was YES. Maximal size of possible extension queue 3723. Compared 1243974 event pairs, 63342 based on Foata normal form. 69756/166473 useless extension candidates. Maximal degree in co-relation 218356. Up to 107565 conditions per place. [2024-11-09 10:59:48,380 INFO L140 encePairwiseOnDemand]: 233/345 looper letters, 142 selfloop transitions, 0 changer transitions 0/231 dead transitions. [2024-11-09 10:59:48,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 231 transitions, 762 flow [2024-11-09 10:59:48,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 10:59:48,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2024-11-09 10:59:48,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 432 transitions. [2024-11-09 10:59:48,383 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6260869565217392 [2024-11-09 10:59:48,383 INFO L175 Difference]: Start difference. First operand has 228 places, 345 transitions, 706 flow. Second operand 2 states and 432 transitions. [2024-11-09 10:59:48,383 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 231 transitions, 762 flow [2024-11-09 10:59:48,387 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 231 transitions, 762 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 10:59:48,390 INFO L231 Difference]: Finished difference. Result has 219 places, 231 transitions, 478 flow [2024-11-09 10:59:48,391 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=478, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=231, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=231, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=478, PETRI_PLACES=219, PETRI_TRANSITIONS=231} [2024-11-09 10:59:48,392 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -9 predicate places. [2024-11-09 10:59:48,393 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 231 transitions, 478 flow [2024-11-09 10:59:48,393 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 91.0) internal successors, (182), 2 states have internal predecessors, (182), 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) [2024-11-09 10:59:48,394 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 10:59:48,394 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 10:59:48,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 10:59:48,395 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-11-09 10:59:48,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 10:59:48,395 INFO L85 PathProgramCache]: Analyzing trace with hash -251816840, now seen corresponding path program 1 times [2024-11-09 10:59:48,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 10:59:48,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [781765471] [2024-11-09 10:59:48,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 10:59:48,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 10:59:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 10:59:48,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 10:59:48,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 10:59:48,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [781765471] [2024-11-09 10:59:48,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [781765471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 10:59:48,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 10:59:48,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-09 10:59:48,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [683208800] [2024-11-09 10:59:48,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 10:59:48,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 10:59:48,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 10:59:48,451 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 10:59:48,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 10:59:48,463 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 345 [2024-11-09 10:59:48,464 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 231 transitions, 478 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2024-11-09 10:59:48,464 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 10:59:48,464 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 345 [2024-11-09 10:59:48,464 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 10:59:59,875 INFO L124 PetriNetUnfolderBase]: 87057/149385 cut-off events. [2024-11-09 10:59:59,876 INFO L125 PetriNetUnfolderBase]: For 475/475 co-relation queries the response was YES. [2024-11-09 11:00:00,152 INFO L83 FinitePrefix]: Finished finitePrefix Result has 277276 conditions, 149385 events. 87057/149385 cut-off events. For 475/475 co-relation queries the response was YES. Maximal size of possible extension queue 4335. Compared 1485134 event pairs, 63288 based on Foata normal form. 0/115409 useless extension candidates. Maximal degree in co-relation 277271. Up to 107447 conditions per place. [2024-11-09 11:00:00,752 INFO L140 encePairwiseOnDemand]: 341/345 looper letters, 266 selfloop transitions, 2 changer transitions 0/353 dead transitions. [2024-11-09 11:00:00,753 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 353 transitions, 1258 flow [2024-11-09 11:00:00,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 11:00:00,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-09 11:00:00,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 525 transitions. [2024-11-09 11:00:00,755 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5072463768115942 [2024-11-09 11:00:00,755 INFO L175 Difference]: Start difference. First operand has 219 places, 231 transitions, 478 flow. Second operand 3 states and 525 transitions. [2024-11-09 11:00:00,755 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 353 transitions, 1258 flow [2024-11-09 11:00:00,759 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 353 transitions, 1258 flow, removed 0 selfloop flow, removed 0 redundant places. [2024-11-09 11:00:00,763 INFO L231 Difference]: Finished difference. Result has 219 places, 229 transitions, 478 flow [2024-11-09 11:00:00,764 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=474, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=229, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=478, PETRI_PLACES=219, PETRI_TRANSITIONS=229} [2024-11-09 11:00:00,764 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -9 predicate places. [2024-11-09 11:00:00,766 INFO L471 AbstractCegarLoop]: Abstraction has has 219 places, 229 transitions, 478 flow [2024-11-09 11:00:00,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 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) [2024-11-09 11:00:00,766 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:00,766 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:00,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 11:00:00,767 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-11-09 11:00:00,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:00,767 INFO L85 PathProgramCache]: Analyzing trace with hash -251816839, now seen corresponding path program 1 times [2024-11-09 11:00:00,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:00,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [608656546] [2024-11-09 11:00:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:00,769 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:00,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:00,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:00,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:00,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [608656546] [2024-11-09 11:00:00,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [608656546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:00:00,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:00:00,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:00:00,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630077580] [2024-11-09 11:00:00,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:00:00,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 11:00:00,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:00,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 11:00:00,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-09 11:00:00,901 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 87 out of 345 [2024-11-09 11:00:00,902 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 229 transitions, 478 flow. Second operand has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2024-11-09 11:00:00,902 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:00,902 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 87 of 345 [2024-11-09 11:00:00,902 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-09 11:00:10,544 INFO L124 PetriNetUnfolderBase]: 80112/139929 cut-off events. [2024-11-09 11:00:10,545 INFO L125 PetriNetUnfolderBase]: For 3537/3545 co-relation queries the response was YES. [2024-11-09 11:00:10,785 INFO L83 FinitePrefix]: Finished finitePrefix Result has 260875 conditions, 139929 events. 80112/139929 cut-off events. For 3537/3545 co-relation queries the response was YES. Maximal size of possible extension queue 3951. Compared 1405909 event pairs, 30228 based on Foata normal form. 0/109072 useless extension candidates. Maximal degree in co-relation 260869. Up to 70499 conditions per place. [2024-11-09 11:00:11,188 INFO L140 encePairwiseOnDemand]: 338/345 looper letters, 387 selfloop transitions, 5 changer transitions 0/477 dead transitions. [2024-11-09 11:00:11,188 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 477 transitions, 1758 flow [2024-11-09 11:00:11,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 11:00:11,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-09 11:00:11,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 742 transitions. [2024-11-09 11:00:11,190 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5376811594202898 [2024-11-09 11:00:11,190 INFO L175 Difference]: Start difference. First operand has 219 places, 229 transitions, 478 flow. Second operand 4 states and 742 transitions. [2024-11-09 11:00:11,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 477 transitions, 1758 flow [2024-11-09 11:00:11,335 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 477 transitions, 1754 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-09 11:00:11,339 INFO L231 Difference]: Finished difference. Result has 221 places, 229 transitions, 496 flow [2024-11-09 11:00:11,339 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=345, PETRI_DIFFERENCE_MINUEND_FLOW=472, PETRI_DIFFERENCE_MINUEND_PLACES=216, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=223, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=496, PETRI_PLACES=221, PETRI_TRANSITIONS=229} [2024-11-09 11:00:11,340 INFO L277 CegarLoopForPetriNet]: 228 programPoint places, -7 predicate places. [2024-11-09 11:00:11,340 INFO L471 AbstractCegarLoop]: Abstraction has has 221 places, 229 transitions, 496 flow [2024-11-09 11:00:11,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.25) internal successors, (353), 4 states have internal predecessors, (353), 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) [2024-11-09 11:00:11,341 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:11,341 INFO L204 CegarLoopForPetriNet]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 11:00:11,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 11:00:11,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 53 more)] === [2024-11-09 11:00:11,342 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:11,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1223198193, now seen corresponding path program 1 times [2024-11-09 11:00:11,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:11,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1569462330] [2024-11-09 11:00:11,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:11,343 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:11,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 11:00:11,372 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-11-09 11:00:11,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-11-09 11:00:11,407 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-11-09 11:00:11,407 INFO L325 BasicCegarLoop]: Counterexample is feasible [2024-11-09 11:00:11,407 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (55 of 56 remaining) [2024-11-09 11:00:11,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (54 of 56 remaining) [2024-11-09 11:00:11,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (53 of 56 remaining) [2024-11-09 11:00:11,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (52 of 56 remaining) [2024-11-09 11:00:11,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (51 of 56 remaining) [2024-11-09 11:00:11,408 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONMEMORY_LEAK (50 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONMEMORY_LEAK (49 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONMEMORY_LEAK (48 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (47 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (46 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (45 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (44 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (43 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (42 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (41 of 56 remaining) [2024-11-09 11:00:11,409 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (40 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (39 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (38 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (37 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (36 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (35 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (34 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (33 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (32 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (31 of 56 remaining) [2024-11-09 11:00:11,410 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (30 of 56 remaining) [2024-11-09 11:00:11,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (29 of 56 remaining) [2024-11-09 11:00:11,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 56 remaining) [2024-11-09 11:00:11,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (27 of 56 remaining) [2024-11-09 11:00:11,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 56 remaining) [2024-11-09 11:00:11,411 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 56 remaining) [2024-11-09 11:00:11,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 56 remaining) [2024-11-09 11:00:11,412 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 56 remaining) [2024-11-09 11:00:11,413 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 56 remaining) [2024-11-09 11:00:11,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 56 remaining) [2024-11-09 11:00:11,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 56 remaining) [2024-11-09 11:00:11,414 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 56 remaining) [2024-11-09 11:00:11,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 56 remaining) [2024-11-09 11:00:11,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 56 remaining) [2024-11-09 11:00:11,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 56 remaining) [2024-11-09 11:00:11,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 56 remaining) [2024-11-09 11:00:11,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 56 remaining) [2024-11-09 11:00:11,417 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (3 of 56 remaining) [2024-11-09 11:00:11,418 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (2 of 56 remaining) [2024-11-09 11:00:11,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (1 of 56 remaining) [2024-11-09 11:00:11,419 INFO L782 garLoopResultBuilder]: Registering result UNKNOWN for location runErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (0 of 56 remaining) [2024-11-09 11:00:11,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 11:00:11,419 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2024-11-09 11:00:11,420 WARN L244 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2024-11-09 11:00:11,420 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2024-11-09 11:00:11,541 INFO L143 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-11-09 11:00:11,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 321 places, 488 transitions, 1003 flow [2024-11-09 11:00:11,640 INFO L124 PetriNetUnfolderBase]: 250/749 cut-off events. [2024-11-09 11:00:11,641 INFO L125 PetriNetUnfolderBase]: For 19/19 co-relation queries the response was YES. [2024-11-09 11:00:11,663 INFO L83 FinitePrefix]: Finished finitePrefix Result has 774 conditions, 749 events. 250/749 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 3887 event pairs, 1 based on Foata normal form. 0/399 useless extension candidates. Maximal degree in co-relation 563. Up to 24 conditions per place. [2024-11-09 11:00:11,663 INFO L82 GeneralOperation]: Start removeDead. Operand has 321 places, 488 transitions, 1003 flow [2024-11-09 11:00:11,684 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 321 places, 488 transitions, 1003 flow [2024-11-09 11:00:11,685 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 11:00:11,686 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;@1c6f9983, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 11:00:11,686 INFO L334 AbstractCegarLoop]: Starting to check reachability of 72 error locations. [2024-11-09 11:00:11,688 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-09 11:00:11,688 INFO L124 PetriNetUnfolderBase]: 5/15 cut-off events. [2024-11-09 11:00:11,689 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-09 11:00:11,689 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-09 11:00:11,689 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-11-09 11:00:11,689 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 69 more)] === [2024-11-09 11:00:11,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 11:00:11,689 INFO L85 PathProgramCache]: Analyzing trace with hash 2008823717, now seen corresponding path program 1 times [2024-11-09 11:00:11,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 11:00:11,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432818587] [2024-11-09 11:00:11,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 11:00:11,690 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 11:00:11,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 11:00:11,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 11:00:11,703 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 11:00:11,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432818587] [2024-11-09 11:00:11,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [432818587] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 11:00:11,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 11:00:11,704 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 11:00:11,704 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225644997] [2024-11-09 11:00:11,704 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 11:00:11,704 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 11:00:11,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 11:00:11,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 11:00:11,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 11:00:11,705 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 488 [2024-11-09 11:00:11,706 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 488 transitions, 1003 flow. Second operand has 2 states, 2 states have (on average 123.0) internal successors, (246), 2 states have internal predecessors, (246), 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) [2024-11-09 11:00:11,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-09 11:00:11,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 488 [2024-11-09 11:00:11,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand