./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 8857f20b 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-8857f20-m [2024-01-29 22:59:28,603 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:59:28,670 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:59:28,674 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:59:28,675 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:59:28,700 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:59:28,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:59:28,701 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:59:28,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:59:28,705 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:59:28,706 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:59:28,706 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:59:28,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:59:28,707 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:59:28,707 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:59:28,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:59:28,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:59:28,708 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:59:28,708 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:59:28,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:59:28,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:59:28,709 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:59:28,709 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:59:28,710 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:59:28,710 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:59:28,710 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:59:28,710 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:59:28,710 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:59:28,711 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:59:28,711 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:59:28,712 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:59:28,712 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:59:28,712 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:28,713 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:59:28,713 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:59:28,713 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:59:28,713 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:59:28,713 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:59:28,713 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:59:28,714 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:59:28,714 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:59:28,714 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:59:28,714 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:59:28,714 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:59:28,944 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:59:28,967 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:59:28,969 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:59:28,970 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:59:28,970 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:59:28,971 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-29 22:59:30,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:59:30,277 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:59:30,278 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-29 22:59:30,287 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1be6068e/38a86aa0b0444bf591935acf15ac41f3/FLAGd6cea5669 [2024-01-29 22:59:30,300 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1be6068e/38a86aa0b0444bf591935acf15ac41f3 [2024-01-29 22:59:30,302 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:59:30,303 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:59:30,305 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml [2024-01-29 22:59:30,440 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:59:30,443 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:59:30,444 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:30,444 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:59:30,447 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:59:30,448 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:30" (1/2) ... [2024-01-29 22:59:30,449 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2d8911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:30, skipping insertion in model container [2024-01-29 22:59:30,449 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:59:30" (1/2) ... [2024-01-29 22:59:30,450 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@4a4f4494 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:59:30, skipping insertion in model container [2024-01-29 22:59:30,450 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:30" (2/2) ... [2024-01-29 22:59:30,451 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7e2d8911 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30, skipping insertion in model container [2024-01-29 22:59:30,451 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:30" (2/2) ... [2024-01-29 22:59:30,451 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:59:30,478 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:59:30,479 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,479 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,479 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,479 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,480 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,480 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,480 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L52] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,480 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,480 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,480 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,480 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] x_0 == 0U [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] (x_0 == 0U) && (x_1 == 0U) [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] x_0 == 0U [2024-01-29 22:59:30,481 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,482 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,482 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,482 INFO L98 nessWitnessExtractor]: Loop invariant at [L77-L87] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,482 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] x_0 == 0U [2024-01-29 22:59:30,482 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (x_0 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,482 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x_1 % 2U == 0U [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x_1 == 0U [2024-01-29 22:59:30,483 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (x_1 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,484 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x_1 % 2U == 0U [2024-01-29 22:59:30,484 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,484 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,485 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,485 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] x_0 % 2U == 0U [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,486 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] x_1 == 0U [2024-01-29 22:59:30,487 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,487 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,487 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (x_1 == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,487 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] x_1 == 0U [2024-01-29 22:59:30,487 INFO L98 nessWitnessExtractor]: Loop invariant at [L61-L68] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,487 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,488 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,488 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,488 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (x_0 % 2U == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:59:30,489 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] x_0 % 2U == 0U [2024-01-29 22:59:30,489 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,489 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,489 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,489 INFO L98 nessWitnessExtractor]: Loop invariant at [L96-L103] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,490 INFO L98 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,490 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-29 22:59:30,510 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:59:30,658 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 22:59:30,664 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:30,675 INFO L202 MainTranslator]: Completed pre-run [2024-01-29 22:59:30,682 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 22:59:30,762 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 22:59:30,764 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:59:30,774 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:59:30,776 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:59:30 WrapperNode [2024-01-29 22:59:30,776 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:59:30,777 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:30,777 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:59:30,777 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:59:30,782 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,795 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,808 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-01-29 22:59:30,809 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:59:30,809 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:59:30,810 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:59:30,810 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:59:30,817 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,817 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,820 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,831 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 22:59:30,831 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,832 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,838 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,841 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,842 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,843 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,845 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:59:30,845 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:59:30,845 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:59:30,846 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:59:30,846 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 10:59:30" (1/1) ... [2024-01-29 22:59:30,850 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:59:30,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:59:30,868 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 22:59:30,904 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 22:59:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:59:30,930 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:59:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:59:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:59:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:59:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 22:59:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 22:59:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 22:59:30,931 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 22:59:30,931 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:59:30,932 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:59:30,933 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:59:30,933 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:59:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:59:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 22:59:30,934 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:59:30,935 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 22:59:31,013 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:59:31,015 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:59:31,369 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:59:31,369 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:59:31,523 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:59:31,523 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 22:59:31,525 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:31 BoogieIcfgContainer [2024-01-29 22:59:31,525 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:59:31,527 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:59:31,527 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:59:31,529 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:59:31,529 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:59:30" (1/4) ... [2024-01-29 22:59:31,530 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae8f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:59:31, skipping insertion in model container [2024-01-29 22:59:31,530 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:59:30" (2/4) ... [2024-01-29 22:59:31,531 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae8f7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:31, skipping insertion in model container [2024-01-29 22:59:31,531 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 10:59:30" (3/4) ... [2024-01-29 22:59:31,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6eae8f7 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:59:31, skipping insertion in model container [2024-01-29 22:59:31,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:59:31" (4/4) ... [2024-01-29 22:59:31,533 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-01-29 22:59:31,545 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:59:31,546 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2024-01-29 22:59:31,546 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:59:31,645 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 22:59:31,681 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 151 transitions, 330 flow [2024-01-29 22:59:31,733 INFO L124 PetriNetUnfolderBase]: 8/147 cut-off events. [2024-01-29 22:59:31,734 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 22:59:31,739 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 22:59:31,739 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 151 transitions, 330 flow [2024-01-29 22:59:31,748 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 146 transitions, 316 flow [2024-01-29 22:59:31,761 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:59:31,768 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;@730cd7fd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:59:31,769 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2024-01-29 22:59:31,770 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:59:31,771 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:59:31,771 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:59:31,771 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:31,771 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:59:31,772 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 22:59:31,779 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:31,780 INFO L85 PathProgramCache]: Analyzing trace with hash 18469, now seen corresponding path program 1 times [2024-01-29 22:59:31,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:31,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847902683] [2024-01-29 22:59:31,789 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:31,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:31,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:32,038 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 22:59:32,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:32,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847902683] [2024-01-29 22:59:32,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847902683] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:32,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:32,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:59:32,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067681613] [2024-01-29 22:59:32,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:32,047 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:59:32,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:32,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:59:32,079 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:59:32,086 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 151 [2024-01-29 22:59:32,088 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) [2024-01-29 22:59:32,088 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:32,089 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 151 [2024-01-29 22:59:32,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:59:44,684 INFO L124 PetriNetUnfolderBase]: 120530/179706 cut-off events. [2024-01-29 22:59:44,685 INFO L125 PetriNetUnfolderBase]: For 2431/2431 co-relation queries the response was YES. [2024-01-29 22:59:45,573 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. [2024-01-29 22:59:46,568 INFO L140 encePairwiseOnDemand]: 118/151 looper letters, 99 selfloop transitions, 6 changer transitions 0/165 dead transitions. [2024-01-29 22:59:46,568 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 130 places, 165 transitions, 573 flow [2024-01-29 22:59:46,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:59:46,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:59:46,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 350 transitions. [2024-01-29 22:59:46,581 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7726269315673289 [2024-01-29 22:59:46,583 INFO L175 Difference]: Start difference. First operand has 151 places, 146 transitions, 316 flow. Second operand 3 states and 350 transitions. [2024-01-29 22:59:46,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 130 places, 165 transitions, 573 flow [2024-01-29 22:59:49,587 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 165 transitions, 551 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 22:59:49,606 INFO L231 Difference]: Finished difference. Result has 124 places, 123 transitions, 286 flow [2024-01-29 22:59:49,608 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} [2024-01-29 22:59:49,619 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -27 predicate places. [2024-01-29 22:59:49,620 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 123 transitions, 286 flow [2024-01-29 22:59:49,620 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 22:59:49,620 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:59:49,620 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 22:59:49,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:59:49,621 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 22:59:49,621 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:59:49,621 INFO L85 PathProgramCache]: Analyzing trace with hash 573137, now seen corresponding path program 1 times [2024-01-29 22:59:49,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:59:49,621 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851244563] [2024-01-29 22:59:49,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:59:49,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:59:49,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:59:49,684 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 22:59:49,685 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:59:49,685 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851244563] [2024-01-29 22:59:49,685 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851244563] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:59:49,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:59:49,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:59:49,686 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813321631] [2024-01-29 22:59:49,686 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:59:49,687 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:59:49,687 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:59:49,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:59:49,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:59:49,696 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 151 [2024-01-29 22:59:49,697 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 123 transitions, 286 flow. Second operand has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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 22:59:49,698 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:59:49,698 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 151 [2024-01-29 22:59:49,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 23:00:02,356 INFO L124 PetriNetUnfolderBase]: 145824/222141 cut-off events. [2024-01-29 23:00:02,356 INFO L125 PetriNetUnfolderBase]: For 30644/30644 co-relation queries the response was YES. [2024-01-29 23:00:02,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 440898 conditions, 222141 events. 145824/222141 cut-off events. For 30644/30644 co-relation queries the response was YES. Maximal size of possible extension queue 12054. Compared 2211072 event pairs, 91129 based on Foata normal form. 2/150760 useless extension candidates. Maximal degree in co-relation 216509. Up to 128821 conditions per place. [2024-01-29 23:00:04,185 INFO L140 encePairwiseOnDemand]: 137/151 looper letters, 148 selfloop transitions, 15 changer transitions 1/221 dead transitions. [2024-01-29 23:00:04,186 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 221 transitions, 854 flow [2024-01-29 23:00:04,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-29 23:00:04,186 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-29 23:00:04,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 403 transitions. [2024-01-29 23:00:04,188 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6672185430463576 [2024-01-29 23:00:04,188 INFO L175 Difference]: Start difference. First operand has 124 places, 123 transitions, 286 flow. Second operand 4 states and 403 transitions. [2024-01-29 23:00:04,188 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 221 transitions, 854 flow [2024-01-29 23:00:04,206 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 221 transitions, 830 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 23:00:04,208 INFO L231 Difference]: Finished difference. Result has 126 places, 133 transitions, 388 flow [2024-01-29 23:00:04,208 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=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=388, PETRI_PLACES=126, PETRI_TRANSITIONS=133} [2024-01-29 23:00:04,209 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -25 predicate places. [2024-01-29 23:00:04,209 INFO L495 AbstractCegarLoop]: Abstraction has has 126 places, 133 transitions, 388 flow [2024-01-29 23:00:04,209 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.75) internal successors, (247), 4 states have internal predecessors, (247), 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 23:00:04,209 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 23:00:04,209 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-29 23:00:04,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 23:00:04,210 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-29 23:00:04,210 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 23:00:04,210 INFO L85 PathProgramCache]: Analyzing trace with hash 1041809568, now seen corresponding path program 1 times [2024-01-29 23:00:04,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 23:00:04,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706186841] [2024-01-29 23:00:04,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 23:00:04,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 23:00:04,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 23:00:04,302 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 23:00:04,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 23:00:04,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706186841] [2024-01-29 23:00:04,303 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [706186841] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 23:00:04,303 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 23:00:04,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 23:00:04,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [207260977] [2024-01-29 23:00:04,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 23:00:04,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 23:00:04,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 23:00:04,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 23:00:04,304 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-29 23:00:04,331 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 151 [2024-01-29 23:00:04,331 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 126 places, 133 transitions, 388 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 23:00:04,331 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 23:00:04,331 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 151 [2024-01-29 23:00:04,332 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand