./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 ab2e0ac4 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-ab2e0ac-m [2024-01-29 14:20:26,651 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 14:20:26,719 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 14:20:26,723 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 14:20:26,723 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 14:20:26,758 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 14:20:26,758 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 14:20:26,759 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 14:20:26,760 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 14:20:26,763 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 14:20:26,763 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 14:20:26,763 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 14:20:26,764 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 14:20:26,765 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 14:20:26,766 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 14:20:26,766 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 14:20:26,766 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 14:20:26,766 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 14:20:26,766 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 14:20:26,767 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 14:20:26,767 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 14:20:26,767 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 14:20:26,768 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 14:20:26,768 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 14:20:26,768 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 14:20:26,768 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 14:20:26,768 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 14:20:26,769 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 14:20:26,769 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 14:20:26,769 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 14:20:26,770 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 14:20:26,770 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 14:20:26,770 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:20:26,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 14:20:26,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 14:20:26,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 14:20:26,771 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 14:20:26,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 14:20:26,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 14:20:26,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 14:20:26,772 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 14:20:26,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 14:20:26,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 14:20:26,773 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 14:20:27,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 14:20:27,033 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 14:20:27,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 14:20:27,035 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 14:20:27,048 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 14:20:27,049 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-29 14:20:28,168 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 14:20:28,326 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 14:20:28,327 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-29 14:20:28,336 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/869ca4b71/679f5ca1c2cc43a693fa49aba08922f8/FLAGa77c75ed0 [2024-01-29 14:20:28,352 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/869ca4b71/679f5ca1c2cc43a693fa49aba08922f8 [2024-01-29 14:20:28,354 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 14:20:28,355 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 14:20:28,357 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml [2024-01-29 14:20:28,466 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 14:20:28,467 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 14:20:28,469 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 14:20:28,469 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 14:20:28,473 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 14:20:28,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:20:28" (1/2) ... [2024-01-29 14:20:28,474 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd9d833 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:28, skipping insertion in model container [2024-01-29 14:20:28,474 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 02:20:28" (1/2) ... [2024-01-29 14:20:28,476 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@18d51f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 02:20:28, skipping insertion in model container [2024-01-29 14:20:28,477 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:28" (2/2) ... [2024-01-29 14:20:28,477 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4cd9d833 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28, skipping insertion in model container [2024-01-29 14:20:28,477 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:28" (2/2) ... [2024-01-29 14:20:28,478 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 14:20:28,511 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 14:20:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] x_0 % 2U == 0U [2024-01-29 14:20:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,512 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,513 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,513 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,513 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,513 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,513 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,513 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] x_0 % 2U == 0U [2024-01-29 14:20:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,514 INFO L98 nessWitnessExtractor]: Loop invariant at [L77-L87] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,514 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,515 INFO L98 nessWitnessExtractor]: Loop invariant at [L61-L68] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,515 INFO L98 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,516 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-29 14:20:28,516 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,516 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,516 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,517 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,517 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] x_1 == 0U [2024-01-29 14:20:28,517 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,517 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,517 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,517 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,518 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] x_0 == 0U [2024-01-29 14:20:28,518 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] x_1 == 0U [2024-01-29 14:20:28,518 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,518 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,519 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,519 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x_1 % 2U == 0U [2024-01-29 14:20:28,519 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,521 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,521 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] x_0 == 0U [2024-01-29 14:20:28,521 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] x_1 == 0U [2024-01-29 14:20:28,521 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,521 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,521 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,521 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,522 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,522 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,522 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,522 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L52] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,522 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x_1 == 0U [2024-01-29 14:20:28,523 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,523 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,523 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,523 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,524 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] x_0 == 0U [2024-01-29 14:20:28,524 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,524 INFO L98 nessWitnessExtractor]: Loop invariant at [L96-L103] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,525 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,525 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x_1 % 2U == 0U [2024-01-29 14:20:28,525 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,525 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,526 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 14:20:28,542 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 14:20:28,691 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] [2024-01-29 14:20:28,696 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:20:28,704 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 14:20:28,712 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 [2024-01-29 14:20:28,757 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] [2024-01-29 14:20:28,758 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 14:20:28,768 INFO L206 MainTranslator]: Completed translation [2024-01-29 14:20:28,769 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28 WrapperNode [2024-01-29 14:20:28,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 14:20:28,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 14:20:28,770 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 14:20:28,770 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 14:20:28,775 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,781 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,794 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-01-29 14:20:28,795 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 14:20:28,795 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 14:20:28,795 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 14:20:28,809 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 14:20:28,825 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,826 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,844 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,856 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]. [2024-01-29 14:20:28,868 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,894 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,897 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,902 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,913 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,915 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 14:20:28,916 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 14:20:28,916 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 14:20:28,916 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 14:20:28,917 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (1/1) ... [2024-01-29 14:20:28,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 14:20:28,928 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 14:20:28,941 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) [2024-01-29 14:20:28,946 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 [2024-01-29 14:20:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 14:20:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 14:20:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 14:20:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 14:20:28,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 14:20:28,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 14:20:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 14:20:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 14:20:28,980 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 14:20:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 14:20:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 14:20:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 14:20:28,980 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 14:20:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 14:20:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 14:20:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 14:20:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 14:20:28,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 14:20:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 14:20:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 14:20:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 14:20:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 14:20:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 14:20:28,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 14:20:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 14:20:28,982 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 14:20:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 14:20:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 14:20:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 14:20:28,983 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 14:20:28,984 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 14:20:29,092 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 14:20:29,096 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 14:20:29,418 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 14:20:29,418 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 14:20:29,573 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 14:20:29,585 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 14:20:29,585 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:20:29 BoogieIcfgContainer [2024-01-29 14:20:29,585 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 14:20:29,587 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 14:20:29,588 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 14:20:29,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 14:20:29,591 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 02:20:28" (1/4) ... [2024-01-29 14:20:29,592 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393572b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 02:20:29, skipping insertion in model container [2024-01-29 14:20:29,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 02:20:28" (2/4) ... [2024-01-29 14:20:29,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393572b0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:20:29, skipping insertion in model container [2024-01-29 14:20:29,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 02:20:28" (3/4) ... [2024-01-29 14:20:29,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393572b0 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 02:20:29, skipping insertion in model container [2024-01-29 14:20:29,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 02:20:29" (4/4) ... [2024-01-29 14:20:29,598 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-01-29 14:20:29,612 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 14:20:29,612 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2024-01-29 14:20:29,612 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 14:20:29,692 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 14:20:29,731 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 151 transitions, 330 flow [2024-01-29 14:20:29,795 INFO L124 PetriNetUnfolderBase]: 8/147 cut-off events. [2024-01-29 14:20:29,796 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 14:20:29,801 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. [2024-01-29 14:20:29,802 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 151 transitions, 330 flow [2024-01-29 14:20:29,809 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 146 transitions, 316 flow [2024-01-29 14:20:29,823 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 14:20:29,830 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;@6dfb5760, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 14:20:29,830 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2024-01-29 14:20:29,832 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 14:20:29,833 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 14:20:29,833 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 14:20:29,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:29,834 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 14:20:29,834 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-29 14:20:29,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:29,839 INFO L85 PathProgramCache]: Analyzing trace with hash 18469, now seen corresponding path program 1 times [2024-01-29 14:20:29,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:29,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232240172] [2024-01-29 14:20:29,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:29,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:30,093 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:30,094 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:30,094 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232240172] [2024-01-29 14:20:30,095 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232240172] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:30,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:30,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:30,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275648748] [2024-01-29 14:20:30,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:30,110 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:30,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:30,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:30,140 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:30,146 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 151 [2024-01-29 14:20:30,149 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 146 transitions, 316 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) [2024-01-29 14:20:30,149 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:30,149 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 151 [2024-01-29 14:20:30,150 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:20:42,705 INFO L124 PetriNetUnfolderBase]: 120256/179565 cut-off events. [2024-01-29 14:20:42,706 INFO L125 PetriNetUnfolderBase]: For 3081/3081 co-relation queries the response was YES. [2024-01-29 14:20:43,332 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342726 conditions, 179565 events. 120256/179565 cut-off events. For 3081/3081 co-relation queries the response was YES. Maximal size of possible extension queue 9953. Compared 1704726 event pairs, 82159 based on Foata normal form. 11773/117429 useless extension candidates. Maximal degree in co-relation 318750. Up to 113379 conditions per place. [2024-01-29 14:20:44,371 INFO L140 encePairwiseOnDemand]: 117/151 looper letters, 99 selfloop transitions, 6 changer transitions 0/164 dead transitions. [2024-01-29 14:20:44,372 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 164 transitions, 571 flow [2024-01-29 14:20:44,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:20:44,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:20:44,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-01-29 14:20:44,382 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7682119205298014 [2024-01-29 14:20:44,384 INFO L175 Difference]: Start difference. First operand has 151 places, 146 transitions, 316 flow. Second operand 3 states and 348 transitions. [2024-01-29 14:20:44,385 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 164 transitions, 571 flow [2024-01-29 14:20:47,002 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 164 transitions, 549 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 14:20:47,005 INFO L231 Difference]: Finished difference. Result has 123 places, 122 transitions, 284 flow [2024-01-29 14:20:47,007 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=123, PETRI_TRANSITIONS=122} [2024-01-29 14:20:47,009 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -28 predicate places. [2024-01-29 14:20:47,009 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 122 transitions, 284 flow [2024-01-29 14:20:47,010 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) [2024-01-29 14:20:47,010 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:20:47,010 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 14:20:47,010 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 14:20:47,010 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-29 14:20:47,011 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:20:47,011 INFO L85 PathProgramCache]: Analyzing trace with hash 573137, now seen corresponding path program 1 times [2024-01-29 14:20:47,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:20:47,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524708445] [2024-01-29 14:20:47,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:20:47,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:20:47,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:20:47,097 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:20:47,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:20:47,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524708445] [2024-01-29 14:20:47,097 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524708445] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:20:47,097 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:20:47,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 14:20:47,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778447084] [2024-01-29 14:20:47,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:20:47,099 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 14:20:47,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:20:47,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 14:20:47,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 14:20:47,101 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 151 [2024-01-29 14:20:47,102 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 284 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) [2024-01-29 14:20:47,102 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:20:47,102 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 151 [2024-01-29 14:20:47,102 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:20:59,351 INFO L124 PetriNetUnfolderBase]: 135904/205474 cut-off events. [2024-01-29 14:20:59,351 INFO L125 PetriNetUnfolderBase]: For 29581/29581 co-relation queries the response was YES. [2024-01-29 14:20:59,851 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409329 conditions, 205474 events. 135904/205474 cut-off events. For 29581/29581 co-relation queries the response was YES. Maximal size of possible extension queue 10821. Compared 2007898 event pairs, 84971 based on Foata normal form. 0/138121 useless extension candidates. Maximal degree in co-relation 237935. Up to 118928 conditions per place. [2024-01-29 14:21:01,327 INFO L140 encePairwiseOnDemand]: 144/151 looper letters, 107 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2024-01-29 14:21:01,327 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 171 transitions, 635 flow [2024-01-29 14:21:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 14:21:01,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 14:21:01,331 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2024-01-29 14:21:01,332 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6578366445916115 [2024-01-29 14:21:01,332 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 284 flow. Second operand 3 states and 298 transitions. [2024-01-29 14:21:01,333 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 171 transitions, 635 flow [2024-01-29 14:21:01,518 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 171 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:21:01,521 INFO L231 Difference]: Finished difference. Result has 124 places, 125 transitions, 310 flow [2024-01-29 14:21:01,521 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} [2024-01-29 14:21:01,522 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -27 predicate places. [2024-01-29 14:21:01,522 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 125 transitions, 310 flow [2024-01-29 14:21:01,522 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) [2024-01-29 14:21:01,522 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:21:01,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:21:01,523 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 14:21:01,523 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-29 14:21:01,523 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:21:01,523 INFO L85 PathProgramCache]: Analyzing trace with hash 1041809568, now seen corresponding path program 1 times [2024-01-29 14:21:01,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:21:01,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368528263] [2024-01-29 14:21:01,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:21:01,524 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:21:01,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:21:01,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:21:01,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:21:01,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368528263] [2024-01-29 14:21:01,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368528263] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:21:01,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:21:01,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:21:01,600 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815947365] [2024-01-29 14:21:01,600 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:21:01,600 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:21:01,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:21:01,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:21:01,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:21:01,621 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 151 [2024-01-29 14:21:01,622 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) [2024-01-29 14:21:01,622 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:21:01,622 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 151 [2024-01-29 14:21:01,622 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 14:21:10,397 INFO L124 PetriNetUnfolderBase]: 102036/159141 cut-off events. [2024-01-29 14:21:10,397 INFO L125 PetriNetUnfolderBase]: For 35654/35654 co-relation queries the response was YES. [2024-01-29 14:21:10,835 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324724 conditions, 159141 events. 102036/159141 cut-off events. For 35654/35654 co-relation queries the response was YES. Maximal size of possible extension queue 7758. Compared 1576994 event pairs, 9307 based on Foata normal form. 32030/163226 useless extension candidates. Maximal degree in co-relation 164643. Up to 123264 conditions per place. [2024-01-29 14:21:11,871 INFO L140 encePairwiseOnDemand]: 138/151 looper letters, 102 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2024-01-29 14:21:11,872 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 154 transitions, 599 flow [2024-01-29 14:21:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 14:21:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 14:21:11,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-01-29 14:21:11,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480132450331126 [2024-01-29 14:21:11,874 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 310 flow. Second operand 4 states and 331 transitions. [2024-01-29 14:21:11,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 154 transitions, 599 flow [2024-01-29 14:21:15,325 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 585 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 14:21:15,327 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 280 flow [2024-01-29 14:21:15,327 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} [2024-01-29 14:21:15,328 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -37 predicate places. [2024-01-29 14:21:15,328 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 280 flow [2024-01-29 14:21:15,328 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) [2024-01-29 14:21:15,328 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 14:21:15,329 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-29 14:21:15,329 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-29 14:21:15,329 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-29 14:21:15,329 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 14:21:15,329 INFO L85 PathProgramCache]: Analyzing trace with hash 449881118, now seen corresponding path program 1 times [2024-01-29 14:21:15,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 14:21:15,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418998949] [2024-01-29 14:21:15,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 14:21:15,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 14:21:15,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 14:21:15,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 14:21:15,436 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 14:21:15,437 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418998949] [2024-01-29 14:21:15,437 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418998949] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 14:21:15,437 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 14:21:15,437 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 14:21:15,437 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446085225] [2024-01-29 14:21:15,437 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 14:21:15,437 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 14:21:15,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 14:21:15,438 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 14:21:15,438 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 14:21:15,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 151 [2024-01-29 14:21:15,460 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) [2024-01-29 14:21:15,461 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 14:21:15,461 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 151 [2024-01-29 14:21:15,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand