./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 27552612 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-2755261-m [2024-01-26 15:22:28,693 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-26 15:22:28,740 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-26 15:22:28,744 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-26 15:22:28,744 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-26 15:22:28,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-26 15:22:28,767 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-26 15:22:28,767 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-26 15:22:28,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-26 15:22:28,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-26 15:22:28,769 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-26 15:22:28,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-26 15:22:28,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-26 15:22:28,770 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-26 15:22:28,770 INFO L153 SettingsManager]: * Use SBE=true [2024-01-26 15:22:28,770 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-26 15:22:28,770 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-26 15:22:28,771 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-26 15:22:28,771 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-26 15:22:28,771 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-26 15:22:28,771 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-26 15:22:28,772 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-26 15:22:28,772 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-26 15:22:28,772 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-26 15:22:28,772 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-26 15:22:28,773 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-26 15:22:28,773 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-26 15:22:28,773 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-26 15:22:28,773 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-26 15:22:28,774 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-26 15:22:28,774 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-26 15:22:28,774 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-26 15:22:28,774 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:22:28,774 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-26 15:22:28,775 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-26 15:22:28,775 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-26 15:22:28,775 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-26 15:22:28,775 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-26 15:22:28,775 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-26 15:22:28,776 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-26 15:22:28,776 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-26 15:22:28,776 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-26 15:22:28,776 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-26 15:22:28,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-26 15:22:28,974 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-26 15:22:28,992 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-26 15:22:28,994 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-26 15:22:28,995 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-26 15:22:28,996 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-26 15:22:28,997 INFO L431 ainManager$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 [2024-01-26 15:22:29,120 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-26 15:22:29,121 INFO L274 PluginConnector]: CDTParser initialized [2024-01-26 15:22:29,123 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-26 15:22:30,259 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-26 15:22:30,445 INFO L384 CDTParser]: Found 1 translation units. [2024-01-26 15:22:30,446 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-26 15:22:30,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c15f8fbf/9a9c1b6959f5478aa15220e74146095b/FLAGd2d3b81d3 [2024-01-26 15:22:30,468 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c15f8fbf/9a9c1b6959f5478aa15220e74146095b [2024-01-26 15:22:30,469 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-26 15:22:30,470 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-26 15:22:30,473 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-26 15:22:30,473 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-26 15:22:30,477 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-26 15:22:30,478 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:22:29" (1/2) ... [2024-01-26 15:22:30,480 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed056e8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:22:30, skipping insertion in model container [2024-01-26 15:22:30,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:22:29" (1/2) ... [2024-01-26 15:22:30,482 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@76332468 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 26.01 03:22:30, skipping insertion in model container [2024-01-26 15:22:30,483 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:22:30" (2/2) ... [2024-01-26 15:22:30,484 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ed056e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30, skipping insertion in model container [2024-01-26 15:22:30,484 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.01 03:22:30" (2/2) ... [2024-01-26 15:22:30,485 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-26 15:22:30,514 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-26 15:22:30,515 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,515 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,515 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,515 INFO L98 nessWitnessExtractor]: Loop invariant at [L96-L103] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,515 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,515 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] x_0 == 0U [2024-01-26 15:22:30,515 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,516 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,516 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,516 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,516 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,516 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,517 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,517 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,517 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,517 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,517 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,517 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,517 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,518 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,518 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,518 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] x_0 % 2U == 0U [2024-01-26 15:22:30,518 INFO L98 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,518 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,519 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L52] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,519 INFO L98 nessWitnessExtractor]: Loop invariant at [L61-L68] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,519 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,519 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x_1 % 2U == 0U [2024-01-26 15:22:30,519 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,519 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-26 15:22:30,519 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,520 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,520 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,520 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x_1 % 2U == 0U [2024-01-26 15:22:30,520 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x_1 == 0U [2024-01-26 15:22:30,521 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,521 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,521 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,522 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,522 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] x_1 == 0U [2024-01-26 15:22:30,522 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,522 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] x_0 % 2U == 0U [2024-01-26 15:22:30,523 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,523 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,523 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] x_1 == 0U [2024-01-26 15:22:30,523 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] x_0 == 0U [2024-01-26 15:22:30,523 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,523 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] x_1 == 0U [2024-01-26 15:22:30,524 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,524 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,524 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,524 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,524 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,525 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,525 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,526 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,526 INFO L98 nessWitnessExtractor]: Loop invariant at [L77-L87] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,526 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,527 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] x_0 == 0U [2024-01-26 15:22:30,527 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,527 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,527 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-26 15:22:30,557 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-26 15:22:30,729 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] [2024-01-26 15:22:30,736 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:22:30,747 INFO L202 MainTranslator]: Completed pre-run [2024-01-26 15:22:30,755 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 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 [2024-01-26 15:22:30,820 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] [2024-01-26 15:22:30,821 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-26 15:22:30,831 INFO L206 MainTranslator]: Completed translation [2024-01-26 15:22:30,834 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30 WrapperNode [2024-01-26 15:22:30,835 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-26 15:22:30,835 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-26 15:22:30,836 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-26 15:22:30,836 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-26 15:22:30,841 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,848 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,863 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-01-26 15:22:30,863 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-26 15:22:30,864 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-26 15:22:30,864 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-26 15:22:30,864 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-26 15:22:30,872 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,872 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,876 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,888 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]. [2024-01-26 15:22:30,889 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,889 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,897 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,900 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,903 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,905 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-26 15:22:30,906 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-26 15:22:30,906 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-26 15:22:30,906 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-26 15:22:30,907 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (1/1) ... [2024-01-26 15:22:30,911 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-26 15:22:30,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-26 15:22:30,945 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) [2024-01-26 15:22:30,990 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 [2024-01-26 15:22:31,023 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-26 15:22:31,024 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-26 15:22:31,024 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-26 15:22:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-26 15:22:31,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-26 15:22:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-26 15:22:31,025 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-26 15:22:31,025 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-26 15:22:31,026 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-26 15:22:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-26 15:22:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-26 15:22:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-26 15:22:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-26 15:22:31,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-26 15:22:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-26 15:22:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-26 15:22:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-26 15:22:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-26 15:22:31,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-26 15:22:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-26 15:22:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-26 15:22:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-26 15:22:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-26 15:22:31,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-26 15:22:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-26 15:22:31,028 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-26 15:22:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-26 15:22:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-26 15:22:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-26 15:22:31,029 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-26 15:22:31,031 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-26 15:22:31,116 INFO L244 CfgBuilder]: Building ICFG [2024-01-26 15:22:31,118 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-26 15:22:31,439 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-26 15:22:31,439 INFO L293 CfgBuilder]: Performing block encoding [2024-01-26 15:22:31,662 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-26 15:22:31,662 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-26 15:22:31,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:22:31 BoogieIcfgContainer [2024-01-26 15:22:31,663 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-26 15:22:31,666 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-26 15:22:31,667 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-26 15:22:31,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-26 15:22:31,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 26.01 03:22:29" (1/4) ... [2024-01-26 15:22:31,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efc597c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 26.01 03:22:31, skipping insertion in model container [2024-01-26 15:22:31,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.01 03:22:30" (2/4) ... [2024-01-26 15:22:31,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efc597c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:22:31, skipping insertion in model container [2024-01-26 15:22:31,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.01 03:22:30" (3/4) ... [2024-01-26 15:22:31,672 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2efc597c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.01 03:22:31, skipping insertion in model container [2024-01-26 15:22:31,672 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.01 03:22:31" (4/4) ... [2024-01-26 15:22:31,673 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-01-26 15:22:31,687 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-26 15:22:31,688 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2024-01-26 15:22:31,688 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-26 15:22:31,779 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-26 15:22:31,811 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 151 transitions, 330 flow [2024-01-26 15:22:31,867 INFO L124 PetriNetUnfolderBase]: 8/147 cut-off events. [2024-01-26 15:22:31,868 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-26 15:22:31,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 147 events. 8/147 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 682 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 135. Up to 2 conditions per place. [2024-01-26 15:22:31,873 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 151 transitions, 330 flow [2024-01-26 15:22:31,880 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 146 transitions, 316 flow [2024-01-26 15:22:31,887 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-26 15:22:31,892 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;@54a38c98, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-26 15:22:31,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2024-01-26 15:22:31,894 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-26 15:22:31,894 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-26 15:22:31,895 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-26 15:22:31,895 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:22:31,895 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-26 15:22:31,896 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-26 15:22:31,899 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:22:31,900 INFO L85 PathProgramCache]: Analyzing trace with hash 18469, now seen corresponding path program 1 times [2024-01-26 15:22:31,906 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:22:31,907 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464693569] [2024-01-26 15:22:31,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:22:31,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:22:31,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:22:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:22:32,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:22:32,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464693569] [2024-01-26 15:22:32,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464693569] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:22:32,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:22:32,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:22:32,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918862353] [2024-01-26 15:22:32,089 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:22:32,096 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:22:32,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:22:32,118 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:22:32,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:22:32,123 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 151 [2024-01-26 15:22:32,126 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 146 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-01-26 15:22:32,126 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:22:32,126 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 151 [2024-01-26 15:22:32,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:22:44,065 INFO L124 PetriNetUnfolderBase]: 120530/179706 cut-off events. [2024-01-26 15:22:44,065 INFO L125 PetriNetUnfolderBase]: For 2431/2431 co-relation queries the response was YES. [2024-01-26 15:22:44,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 343397 conditions, 179706 events. 120530/179706 cut-off events. For 2431/2431 co-relation queries the response was YES. Maximal size of possible extension queue 10059. Compared 1711833 event pairs, 76715 based on Foata normal form. 12064/119631 useless extension candidates. Maximal degree in co-relation 322774. Up to 105252 conditions per place. [2024-01-26 15:22:45,770 INFO L140 encePairwiseOnDemand]: 118/151 looper letters, 99 selfloop transitions, 6 changer transitions 0/165 dead transitions. [2024-01-26 15:22:45,770 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 165 transitions, 573 flow [2024-01-26 15:22:45,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:22:45,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:22:45,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-01-26 15:22:45,781 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7726269315673289 [2024-01-26 15:22:45,782 INFO L175 Difference]: Start difference. First operand has 151 places, 146 transitions, 316 flow. Second operand 3 states and 350 transitions. [2024-01-26 15:22:45,783 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 165 transitions, 573 flow [2024-01-26 15:22:48,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 165 transitions, 551 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-26 15:22:48,047 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 286 flow [2024-01-26 15:22:48,049 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=246, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=113, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=124, PETRI_TRANSITIONS=123} [2024-01-26 15:22:48,051 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -27 predicate places. [2024-01-26 15:22:48,051 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 286 flow [2024-01-26 15:22:48,052 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 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) [2024-01-26 15:22:48,052 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:22:48,052 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-26 15:22:48,052 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-26 15:22:48,052 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-26 15:22:48,053 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:22:48,053 INFO L85 PathProgramCache]: Analyzing trace with hash 573137, now seen corresponding path program 1 times [2024-01-26 15:22:48,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:22:48,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891246162] [2024-01-26 15:22:48,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:22:48,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:22:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:22:48,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:22:48,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:22:48,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891246162] [2024-01-26 15:22:48,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [891246162] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:22:48,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:22:48,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-26 15:22:48,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049328237] [2024-01-26 15:22:48,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:22:48,100 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-26 15:22:48,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:22:48,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-26 15:22:48,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-26 15:22:48,103 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 151 [2024-01-26 15:22:48,104 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-01-26 15:22:48,104 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:22:48,104 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 151 [2024-01-26 15:22:48,104 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:22:59,999 INFO L124 PetriNetUnfolderBase]: 135818/206114 cut-off events. [2024-01-26 15:22:59,999 INFO L125 PetriNetUnfolderBase]: For 29814/29814 co-relation queries the response was YES. [2024-01-26 15:23:00,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409435 conditions, 206114 events. 135818/206114 cut-off events. For 29814/29814 co-relation queries the response was YES. Maximal size of possible extension queue 10827. Compared 2021925 event pairs, 91129 based on Foata normal form. 1/137656 useless extension candidates. Maximal degree in co-relation 216509. Up to 128413 conditions per place. [2024-01-26 15:23:01,620 INFO L140 encePairwiseOnDemand]: 143/151 looper letters, 107 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2024-01-26 15:23:01,621 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 171 transitions, 635 flow [2024-01-26 15:23:01,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-26 15:23:01,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-26 15:23:01,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-01-26 15:23:01,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6534216335540839 [2024-01-26 15:23:01,623 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 286 flow. Second operand 3 states and 296 transitions. [2024-01-26 15:23:01,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 171 transitions, 635 flow [2024-01-26 15:23:01,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 171 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:23:01,640 INFO L231 Difference]: Finished difference. Result has 124 places, 125 transitions, 310 flow [2024-01-26 15:23:01,641 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=124, PETRI_TRANSITIONS=125} [2024-01-26 15:23:01,641 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -27 predicate places. [2024-01-26 15:23:01,641 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 125 transitions, 310 flow [2024-01-26 15:23:01,642 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 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) [2024-01-26 15:23:01,642 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:23:01,642 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:23:01,642 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-26 15:23:01,642 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-26 15:23:01,643 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:23:01,643 INFO L85 PathProgramCache]: Analyzing trace with hash 1041809568, now seen corresponding path program 1 times [2024-01-26 15:23:01,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:23:01,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [602085203] [2024-01-26 15:23:01,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:23:01,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:23:01,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:23:01,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:23:01,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:23:01,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [602085203] [2024-01-26 15:23:01,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [602085203] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:23:01,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:23:01,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:23:01,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1020457285] [2024-01-26 15:23:01,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:23:01,725 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:23:01,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:23:01,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:23:01,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:23:01,746 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 151 [2024-01-26 15:23:01,747 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 125 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) [2024-01-26 15:23:01,747 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:23:01,747 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 151 [2024-01-26 15:23:01,748 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-26 15:23:09,993 INFO L124 PetriNetUnfolderBase]: 102036/159141 cut-off events. [2024-01-26 15:23:09,993 INFO L125 PetriNetUnfolderBase]: For 35193/35193 co-relation queries the response was YES. [2024-01-26 15:23:10,253 INFO L83 FinitePrefix]: Finished finitePrefix Result has 323908 conditions, 159141 events. 102036/159141 cut-off events. For 35193/35193 co-relation queries the response was YES. Maximal size of possible extension queue 7758. Compared 1576172 event pairs, 9307 based on Foata normal form. 32030/163226 useless extension candidates. Maximal degree in co-relation 187703. Up to 123264 conditions per place. [2024-01-26 15:23:10,827 INFO L140 encePairwiseOnDemand]: 138/151 looper letters, 102 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2024-01-26 15:23:10,827 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 154 transitions, 605 flow [2024-01-26 15:23:10,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-26 15:23:10,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-26 15:23:10,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-01-26 15:23:10,829 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480132450331126 [2024-01-26 15:23:10,829 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 310 flow. Second operand 4 states and 331 transitions. [2024-01-26 15:23:10,829 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 154 transitions, 605 flow [2024-01-26 15:23:10,875 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 585 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-26 15:23:10,877 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 280 flow [2024-01-26 15:23:10,877 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2024-01-26 15:23:10,877 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -37 predicate places. [2024-01-26 15:23:10,877 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 280 flow [2024-01-26 15:23:10,878 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 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) [2024-01-26 15:23:10,878 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-26 15:23:10,878 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-26 15:23:10,878 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-26 15:23:10,878 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-26 15:23:10,879 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-26 15:23:10,879 INFO L85 PathProgramCache]: Analyzing trace with hash 449881118, now seen corresponding path program 1 times [2024-01-26 15:23:10,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-26 15:23:10,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438915511] [2024-01-26 15:23:10,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-26 15:23:10,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-26 15:23:10,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-26 15:23:10,965 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-26 15:23:10,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-26 15:23:10,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438915511] [2024-01-26 15:23:10,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438915511] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-26 15:23:10,971 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-26 15:23:10,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-26 15:23:10,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548470548] [2024-01-26 15:23:10,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-26 15:23:10,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-26 15:23:10,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-26 15:23:10,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-26 15:23:10,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-26 15:23:10,988 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 151 [2024-01-26 15:23:10,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 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) [2024-01-26 15:23:10,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-26 15:23:10,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 151 [2024-01-26 15:23:10,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand