./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 59af5db6 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-59af5db-m [2024-02-02 09:22:02,675 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-02-02 09:22:02,710 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-02-02 09:22:02,719 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-02-02 09:22:02,720 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-02-02 09:22:02,739 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-02-02 09:22:02,742 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-02-02 09:22:02,743 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-02-02 09:22:02,743 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-02-02 09:22:02,746 INFO L153 SettingsManager]: * Use memory slicer=true [2024-02-02 09:22:02,746 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-02-02 09:22:02,747 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-02-02 09:22:02,748 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-02-02 09:22:02,749 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-02-02 09:22:02,749 INFO L153 SettingsManager]: * Use SBE=true [2024-02-02 09:22:02,749 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-02-02 09:22:02,749 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-02-02 09:22:02,749 INFO L153 SettingsManager]: * sizeof long=4 [2024-02-02 09:22:02,750 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-02-02 09:22:02,750 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-02-02 09:22:02,751 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-02-02 09:22:02,751 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-02-02 09:22:02,751 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-02-02 09:22:02,752 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-02-02 09:22:02,752 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-02-02 09:22:02,752 INFO L153 SettingsManager]: * sizeof long double=12 [2024-02-02 09:22:02,752 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-02-02 09:22:02,752 INFO L153 SettingsManager]: * Use constant arrays=true [2024-02-02 09:22:02,753 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-02-02 09:22:02,753 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-02-02 09:22:02,754 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-02-02 09:22:02,754 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-02-02 09:22:02,754 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:22:02,754 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-02-02 09:22:02,754 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-02-02 09:22:02,755 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-02-02 09:22:02,755 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-02-02 09:22:02,755 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-02-02 09:22:02,755 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-02-02 09:22:02,755 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-02-02 09:22:02,755 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-02-02 09:22:02,756 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-02-02 09:22:02,756 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-02-02 09:22:02,756 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-02-02 09:22:02,987 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-02-02 09:22:03,011 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-02-02 09:22:03,015 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-02-02 09:22:03,016 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-02-02 09:22:03,016 INFO L274 PluginConnector]: Witness Parser initialized [2024-02-02 09:22:03,017 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml [2024-02-02 09:22:03,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-02-02 09:22:03,121 INFO L274 PluginConnector]: CDTParser initialized [2024-02-02 09:22:03,122 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-02-02 09:22:04,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-02-02 09:22:04,385 INFO L384 CDTParser]: Found 1 translation units. [2024-02-02 09:22:04,385 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-02-02 09:22:04,392 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6d1830a/74f4a6c7d47c4bdeb5a4d932e9700085/FLAG860ebf2b2 [2024-02-02 09:22:04,404 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba6d1830a/74f4a6c7d47c4bdeb5a4d932e9700085 [2024-02-02 09:22:04,407 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-02-02 09:22:04,408 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-02-02 09:22:04,410 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-02-02 09:22:04,410 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-02-02 09:22:04,413 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-02-02 09:22:04,414 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:22:03" (1/2) ... [2024-02-02 09:22:04,415 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d8fbb6 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:22:04, skipping insertion in model container [2024-02-02 09:22:04,415 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:22:03" (1/2) ... [2024-02-02 09:22:04,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@45e6acf8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 02.02 09:22:04, skipping insertion in model container [2024-02-02 09:22:04,416 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:22:04" (2/2) ... [2024-02-02 09:22:04,416 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8d8fbb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04, skipping insertion in model container [2024-02-02 09:22:04,417 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.02 09:22:04" (2/2) ... [2024-02-02 09:22:04,417 INFO L86 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-02-02 09:22:04,440 INFO L99 nessWitnessExtractor]: Found the following entries in the witness: [2024-02-02 09:22:04,441 INFO L101 nessWitnessExtractor]: Location invariant before [L97-L97] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,441 INFO L101 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,441 INFO L101 nessWitnessExtractor]: Location invariant before [L90-L90] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,441 INFO L101 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Loop invariant at [L61-L68] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Loop invariant at [L42-L52] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Location invariant before [L64-L64] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,442 INFO L101 nessWitnessExtractor]: Loop invariant at [L77-L87] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,443 INFO L101 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,443 INFO L101 nessWitnessExtractor]: Location invariant before [L51-L51] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,443 INFO L101 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,443 INFO L101 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,443 INFO L101 nessWitnessExtractor]: Location invariant before [L71-L71] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,443 INFO L101 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,444 INFO L101 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,444 INFO L101 nessWitnessExtractor]: Location invariant before [L115-L115] x_1 == 0U [2024-02-02 09:22:04,444 INFO L101 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,444 INFO L101 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,444 INFO L101 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L99-L99] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,445 INFO L101 nessWitnessExtractor]: Location invariant before [L106-L106] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,446 INFO L101 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,446 INFO L101 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,446 INFO L101 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,446 INFO L101 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,446 INFO L101 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,447 INFO L101 nessWitnessExtractor]: Location invariant before [L86-L86] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,447 INFO L101 nessWitnessExtractor]: Location invariant before [L114-L114] (x_0 == 0U) && (x_1 == 0U) [2024-02-02 09:22:04,448 INFO L101 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,449 INFO L101 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,449 INFO L101 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,449 INFO L101 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,449 INFO L101 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,449 INFO L101 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,449 INFO L101 nessWitnessExtractor]: Location invariant before [L55-L55] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-02-02 09:22:04,449 INFO L101 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,450 INFO L101 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,450 INFO L101 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,450 INFO L101 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,450 INFO L101 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,450 INFO L101 nessWitnessExtractor]: Loop invariant at [L96-L103] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,450 INFO L101 nessWitnessExtractor]: Location invariant before [L105-L105] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,451 INFO L101 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-02-02 09:22:04,467 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-02-02 09:22:04,588 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3273,3286] [2024-02-02 09:22:04,592 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:22:04,599 INFO L202 MainTranslator]: Completed pre-run [2024-02-02 09:22:04,605 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-02-02 09:22:04,660 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3273,3286] [2024-02-02 09:22:04,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-02-02 09:22:04,676 INFO L206 MainTranslator]: Completed translation [2024-02-02 09:22:04,677 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04 WrapperNode [2024-02-02 09:22:04,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-02-02 09:22:04,678 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-02-02 09:22:04,679 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-02-02 09:22:04,679 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-02-02 09:22:04,684 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,699 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,721 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 81 [2024-02-02 09:22:04,722 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-02-02 09:22:04,723 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-02-02 09:22:04,723 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-02-02 09:22:04,723 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-02-02 09:22:04,731 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,731 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,745 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,762 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-02-02 09:22:04,771 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,771 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,778 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,788 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,792 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,794 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,796 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-02-02 09:22:04,799 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-02-02 09:22:04,799 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-02-02 09:22:04,799 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-02-02 09:22:04,800 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (1/1) ... [2024-02-02 09:22:04,804 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-02-02 09:22:04,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-02-02 09:22:04,822 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) [2024-02-02 09:22:04,871 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 [2024-02-02 09:22:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-02-02 09:22:04,895 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-02-02 09:22:04,895 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-02-02 09:22:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-02-02 09:22:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-02-02 09:22:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-02-02 09:22:04,896 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-02-02 09:22:04,896 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-02-02 09:22:04,897 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-02-02 09:22:04,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-02-02 09:22:04,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-02-02 09:22:04,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-02-02 09:22:04,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-02-02 09:22:04,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-02-02 09:22:04,897 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-02-02 09:22:04,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-02-02 09:22:04,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-02-02 09:22:04,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-02-02 09:22:04,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-02-02 09:22:04,898 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-02-02 09:22:04,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-02-02 09:22:04,898 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-02-02 09:22:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-02-02 09:22:04,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-02-02 09:22:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-02-02 09:22:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-02-02 09:22:04,899 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-02-02 09:22:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-02-02 09:22:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-02-02 09:22:04,900 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-02-02 09:22:04,902 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-02-02 09:22:05,011 INFO L244 CfgBuilder]: Building ICFG [2024-02-02 09:22:05,013 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-02-02 09:22:05,361 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-02-02 09:22:05,362 INFO L293 CfgBuilder]: Performing block encoding [2024-02-02 09:22:05,523 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-02-02 09:22:05,529 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-02-02 09:22:05,530 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:22:05 BoogieIcfgContainer [2024-02-02 09:22:05,530 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-02-02 09:22:05,532 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-02-02 09:22:05,532 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-02-02 09:22:05,535 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-02-02 09:22:05,535 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 02.02 09:22:03" (1/4) ... [2024-02-02 09:22:05,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c2b6b1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 02.02 09:22:05, skipping insertion in model container [2024-02-02 09:22:05,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.02 09:22:04" (2/4) ... [2024-02-02 09:22:05,536 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c2b6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:22:05, skipping insertion in model container [2024-02-02 09:22:05,536 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.02 09:22:04" (3/4) ... [2024-02-02 09:22:05,537 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@9c2b6b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.02 09:22:05, skipping insertion in model container [2024-02-02 09:22:05,537 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.02 09:22:05" (4/4) ... [2024-02-02 09:22:05,538 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-02-02 09:22:05,552 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-02-02 09:22:05,553 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2024-02-02 09:22:05,553 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-02-02 09:22:05,653 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-02-02 09:22:05,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 146 places, 141 transitions, 310 flow [2024-02-02 09:22:05,781 INFO L124 PetriNetUnfolderBase]: 8/137 cut-off events. [2024-02-02 09:22:05,781 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-02-02 09:22:05,787 INFO L83 FinitePrefix]: Finished finitePrefix Result has 154 conditions, 137 events. 8/137 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 613 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 127. Up to 2 conditions per place. [2024-02-02 09:22:05,788 INFO L82 GeneralOperation]: Start removeDead. Operand has 146 places, 141 transitions, 310 flow [2024-02-02 09:22:05,794 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 141 places, 136 transitions, 296 flow [2024-02-02 09:22:05,805 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-02-02 09:22:05,810 INFO L357 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, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@29f8ad7f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-02-02 09:22:05,810 INFO L358 AbstractCegarLoop]: Starting to check reachability of 115 error locations. [2024-02-02 09:22:05,814 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-02-02 09:22:05,814 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-02-02 09:22:05,814 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-02-02 09:22:05,814 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:05,815 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-02-02 09:22:05,815 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 112 more)] === [2024-02-02 09:22:05,819 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:05,819 INFO L85 PathProgramCache]: Analyzing trace with hash 16930, now seen corresponding path program 1 times [2024-02-02 09:22:05,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:05,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808402019] [2024-02-02 09:22:05,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:05,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:05,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:06,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:06,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:06,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808402019] [2024-02-02 09:22:06,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [808402019] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:06,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:06,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-02-02 09:22:06,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25247856] [2024-02-02 09:22:06,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:06,106 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:22:06,110 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:06,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:22:06,132 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:22:06,138 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 141 [2024-02-02 09:22:06,142 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 141 places, 136 transitions, 296 flow. Second operand has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:06,143 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:06,143 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 141 [2024-02-02 09:22:06,143 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:22:17,359 INFO L124 PetriNetUnfolderBase]: 106745/155956 cut-off events. [2024-02-02 09:22:17,359 INFO L125 PetriNetUnfolderBase]: For 2322/2322 co-relation queries the response was YES. [2024-02-02 09:22:17,856 INFO L83 FinitePrefix]: Finished finitePrefix Result has 300594 conditions, 155956 events. 106745/155956 cut-off events. For 2322/2322 co-relation queries the response was YES. Maximal size of possible extension queue 9191. Compared 1426947 event pairs, 105545 based on Foata normal form. 10221/99260 useless extension candidates. Maximal degree in co-relation 279972. Up to 140155 conditions per place. [2024-02-02 09:22:19,265 INFO L140 encePairwiseOnDemand]: 120/141 looper letters, 58 selfloop transitions, 2 changer transitions 0/117 dead transitions. [2024-02-02 09:22:19,266 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 117 transitions, 378 flow [2024-02-02 09:22:19,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:22:19,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:22:19,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 262 transitions. [2024-02-02 09:22:19,276 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6193853427895981 [2024-02-02 09:22:19,277 INFO L175 Difference]: Start difference. First operand has 141 places, 136 transitions, 296 flow. Second operand 3 states and 262 transitions. [2024-02-02 09:22:19,278 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 117 transitions, 378 flow [2024-02-02 09:22:19,836 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 120 places, 117 transitions, 362 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-02-02 09:22:19,839 INFO L231 Difference]: Finished difference. Result has 120 places, 117 transitions, 246 flow [2024-02-02 09:22:19,840 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=117, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=246, PETRI_PLACES=120, PETRI_TRANSITIONS=117} [2024-02-02 09:22:19,843 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -21 predicate places. [2024-02-02 09:22:19,844 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 117 transitions, 246 flow [2024-02-02 09:22:19,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.666666666666664) internal successors, (185), 3 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-02-02 09:22:19,844 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:19,844 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-02-02 09:22:19,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-02-02 09:22:19,845 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 112 more)] === [2024-02-02 09:22:19,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:19,845 INFO L85 PathProgramCache]: Analyzing trace with hash 525382, now seen corresponding path program 1 times [2024-02-02 09:22:19,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:19,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533630360] [2024-02-02 09:22:19,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:19,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:19,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:19,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533630360] [2024-02-02 09:22:19,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533630360] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:19,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:19,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-02-02 09:22:19,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517964454] [2024-02-02 09:22:19,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:19,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-02-02 09:22:19,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:19,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-02-02 09:22:19,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-02-02 09:22:19,873 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 141 [2024-02-02 09:22:19,874 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 117 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-02-02 09:22:19,874 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:19,874 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 141 [2024-02-02 09:22:19,874 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:22:30,080 INFO L124 PetriNetUnfolderBase]: 120256/179563 cut-off events. [2024-02-02 09:22:30,081 INFO L125 PetriNetUnfolderBase]: For 540/540 co-relation queries the response was YES. [2024-02-02 09:22:30,506 INFO L83 FinitePrefix]: Finished finitePrefix Result has 339621 conditions, 179563 events. 120256/179563 cut-off events. For 540/540 co-relation queries the response was YES. Maximal size of possible extension queue 9955. Compared 1698478 event pairs, 82159 based on Foata normal form. 0/105585 useless extension candidates. Maximal degree in co-relation 339612. Up to 113379 conditions per place. [2024-02-02 09:22:31,386 INFO L140 encePairwiseOnDemand]: 134/141 looper letters, 99 selfloop transitions, 6 changer transitions 0/162 dead transitions. [2024-02-02 09:22:31,386 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 162 transitions, 549 flow [2024-02-02 09:22:31,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-02-02 09:22:31,387 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-02-02 09:22:31,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 292 transitions. [2024-02-02 09:22:31,393 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6903073286052009 [2024-02-02 09:22:31,393 INFO L175 Difference]: Start difference. First operand has 120 places, 117 transitions, 246 flow. Second operand 3 states and 292 transitions. [2024-02-02 09:22:31,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 162 transitions, 549 flow [2024-02-02 09:22:31,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 162 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:22:31,398 INFO L231 Difference]: Finished difference. Result has 121 places, 120 transitions, 280 flow [2024-02-02 09:22:31,398 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=110, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=121, PETRI_TRANSITIONS=120} [2024-02-02 09:22:31,399 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -20 predicate places. [2024-02-02 09:22:31,399 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 120 transitions, 280 flow [2024-02-02 09:22:31,400 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2024-02-02 09:22:31,400 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:31,400 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-02-02 09:22:31,402 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-02-02 09:22:31,402 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 112 more)] === [2024-02-02 09:22:31,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:31,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1527483873, now seen corresponding path program 1 times [2024-02-02 09:22:31,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:31,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [804998429] [2024-02-02 09:22:31,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:31,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:31,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:31,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:31,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:31,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [804998429] [2024-02-02 09:22:31,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [804998429] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:31,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:31,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:22:31,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491121603] [2024-02-02 09:22:31,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:31,530 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:22:31,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:31,531 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:22:31,531 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:22:31,558 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 55 out of 141 [2024-02-02 09:22:31,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 120 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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) [2024-02-02 09:22:31,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:31,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 55 of 141 [2024-02-02 09:22:31,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-02-02 09:22:40,006 INFO L124 PetriNetUnfolderBase]: 104428/161606 cut-off events. [2024-02-02 09:22:40,006 INFO L125 PetriNetUnfolderBase]: For 20491/20491 co-relation queries the response was YES. [2024-02-02 09:22:40,367 INFO L83 FinitePrefix]: Finished finitePrefix Result has 312630 conditions, 161606 events. 104428/161606 cut-off events. For 20491/20491 co-relation queries the response was YES. Maximal size of possible extension queue 7851. Compared 1532248 event pairs, 72829 based on Foata normal form. 18132/133033 useless extension candidates. Maximal degree in co-relation 187853. Up to 125046 conditions per place. [2024-02-02 09:22:41,035 INFO L140 encePairwiseOnDemand]: 128/141 looper letters, 98 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2024-02-02 09:22:41,035 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 149 transitions, 565 flow [2024-02-02 09:22:41,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-02-02 09:22:41,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-02-02 09:22:41,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 323 transitions. [2024-02-02 09:22:41,037 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5726950354609929 [2024-02-02 09:22:41,037 INFO L175 Difference]: Start difference. First operand has 121 places, 120 transitions, 280 flow. Second operand 4 states and 323 transitions. [2024-02-02 09:22:41,037 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 149 transitions, 565 flow [2024-02-02 09:22:41,818 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 149 transitions, 545 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-02-02 09:22:41,819 INFO L231 Difference]: Finished difference. Result has 111 places, 109 transitions, 250 flow [2024-02-02 09:22:41,820 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=141, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=250, PETRI_PLACES=111, PETRI_TRANSITIONS=109} [2024-02-02 09:22:41,820 INFO L281 CegarLoopForPetriNet]: 141 programPoint places, -30 predicate places. [2024-02-02 09:22:41,821 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 109 transitions, 250 flow [2024-02-02 09:22:41,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 56.5) internal successors, (226), 4 states have internal predecessors, (226), 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) [2024-02-02 09:22:41,821 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-02-02 09:22:41,821 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-02-02 09:22:41,821 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-02-02 09:22:41,821 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 112 more)] === [2024-02-02 09:22:41,822 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-02-02 09:22:41,822 INFO L85 PathProgramCache]: Analyzing trace with hash 965278382, now seen corresponding path program 1 times [2024-02-02 09:22:41,822 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-02-02 09:22:41,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [874000655] [2024-02-02 09:22:41,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-02-02 09:22:41,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-02-02 09:22:41,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-02-02 09:22:41,874 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-02-02 09:22:41,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-02-02 09:22:41,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [874000655] [2024-02-02 09:22:41,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [874000655] provided 1 perfect and 0 imperfect interpolant sequences [2024-02-02 09:22:41,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-02-02 09:22:41,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-02-02 09:22:41,875 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296011056] [2024-02-02 09:22:41,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-02-02 09:22:41,876 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-02-02 09:22:41,876 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-02-02 09:22:41,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-02-02 09:22:41,876 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-02-02 09:22:41,893 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 56 out of 141 [2024-02-02 09:22:41,894 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 109 transitions, 250 flow. Second operand has 4 states, 4 states have (on average 58.0) internal successors, (232), 4 states have internal predecessors, (232), 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) [2024-02-02 09:22:41,894 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-02-02 09:22:41,894 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 56 of 141 [2024-02-02 09:22:41,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand