./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp3x3.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/bench-exp3x3.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/bench-exp3x3.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3.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 22:56:08,230 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:56:08,302 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:56:08,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:56:08,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:56:08,337 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:56:08,337 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:56:08,338 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:56:08,338 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:56:08,341 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:56:08,341 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:56:08,342 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:56:08,342 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:56:08,343 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:56:08,343 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:56:08,344 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:56:08,344 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:56:08,344 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:56:08,344 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:56:08,344 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:56:08,345 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:56:08,345 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:56:08,345 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:56:08,345 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:56:08,346 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:56:08,346 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:56:08,346 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:56:08,346 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:56:08,347 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:56:08,347 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:56:08,348 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:56:08,348 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:56:08,348 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:56:08,348 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:56:08,348 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:56:08,348 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:56:08,352 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:56:08,352 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:56:08,353 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:56:08,353 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:56:08,353 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:56:08,354 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:56:08,354 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:56:08,354 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:56:08,511 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:56:08,526 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:56:08,529 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:56:08,529 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:56:08,530 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:56:08,531 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-01-29 22:56:09,527 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:56:09,697 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:56:09,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp3x3.wvr.c [2024-01-29 22:56:09,706 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2183364b/89d926c8928b4cb89316aa50dc0fb365/FLAGefcfb8c54 [2024-01-29 22:56:09,723 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2183364b/89d926c8928b4cb89316aa50dc0fb365 [2024-01-29 22:56:09,726 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:56:09,727 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:56:09,729 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp3x3.wvr.yml/witness.yml [2024-01-29 22:56:09,835 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:56:09,836 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:56:09,838 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:56:09,838 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:56:09,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:56:09,842 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:56:09" (1/2) ... [2024-01-29 22:56:09,843 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ce1315 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:56:09, skipping insertion in model container [2024-01-29 22:56:09,843 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:56:09" (1/2) ... [2024-01-29 22:56:09,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@e1f6bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:56:09, skipping insertion in model container [2024-01-29 22:56:09,845 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:56:09" (2/2) ... [2024-01-29 22:56:09,845 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@18ce1315 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:09, skipping insertion in model container [2024-01-29 22:56:09,845 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:56:09" (2/2) ... [2024-01-29 22:56:09,845 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:56:09,873 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:56:09,874 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (x5 == 0U) && (n == 0U) [2024-01-29 22:56:09,874 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] x5 == 0U [2024-01-29 22:56:09,874 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (x5 == 0U) && (x6 == 0U) [2024-01-29 22:56:09,874 INFO L98 nessWitnessExtractor]: Loop invariant at [L70-L72] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,875 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,875 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,875 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,875 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,876 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] n == 0U [2024-01-29 22:56:09,876 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,876 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] ((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL) [2024-01-29 22:56:09,876 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && (x6 == 0U) [2024-01-29 22:56:09,876 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && (n == 0U) [2024-01-29 22:56:09,876 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && (x3 == 0U) [2024-01-29 22:56:09,876 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && (x4 == 0U) [2024-01-29 22:56:09,877 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && (x1 == 0U) [2024-01-29 22:56:09,877 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && (x5 == 0U) [2024-01-29 22:56:09,877 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (0LL - (long long )n) + (long long )x1 >= 0LL [2024-01-29 22:56:09,877 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] ((0LL - (long long )n) + (long long )x1 >= 0LL) && ((long long )n + (long long )x1 >= 0LL) [2024-01-29 22:56:09,877 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && ((long long )n - (long long )x1 >= 0LL) [2024-01-29 22:56:09,877 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (((0LL - (long long )n) + (long long )x1 >= 0LL) && ((0LL - (long long )n) - (long long )x1 >= 0LL)) && (x2 == 0U) [2024-01-29 22:56:09,878 INFO L98 nessWitnessExtractor]: Loop invariant at [L46-L48] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,878 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,878 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,878 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] (x3 == 0U) && (x4 == 0U) [2024-01-29 22:56:09,878 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] ((x3 == 0U) && (x4 == 0U)) && (n == 0U) [2024-01-29 22:56:09,878 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] x3 == 0U [2024-01-29 22:56:09,878 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] ((x3 == 0U) && (x4 == 0U)) && (x6 == 0U) [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] ((x3 == 0U) && (x4 == 0U)) && (x5 == 0U) [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Loop invariant at [L54-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Location invariant after [L37-L43] n == 0U [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (x4 == 0U) && (x5 == 0U) [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] ((x4 == 0U) && (x5 == 0U)) && (n == 0U) [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] ((x4 == 0U) && (x5 == 0U)) && (x6 == 0U) [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] x4 == 0U [2024-01-29 22:56:09,879 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,880 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,880 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,881 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] ((x2 == 0U) && (x3 == 0U)) && (x4 == 0U) [2024-01-29 22:56:09,881 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (n == 0U) [2024-01-29 22:56:09,881 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (x6 == 0U) [2024-01-29 22:56:09,881 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (x2 == 0U) && (x3 == 0U) [2024-01-29 22:56:09,881 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (((x2 == 0U) && (x3 == 0U)) && (x4 == 0U)) && (x5 == 0U) [2024-01-29 22:56:09,881 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x2 == 0U [2024-01-29 22:56:09,882 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L40] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,882 INFO L98 nessWitnessExtractor]: Loop invariant at [L62-L64] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,882 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] x6 == 0U [2024-01-29 22:56:09,882 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] (x6 == 0U) && (n == 0U) [2024-01-29 22:56:09,882 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,882 INFO L98 nessWitnessExtractor]: Loop invariant at [L78-L80] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,882 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 22:56:09,900 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:56:10,071 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/bench-exp3x3.wvr.c[2703,2716] [2024-01-29 22:56:10,078 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:56:10,085 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:56:10,123 WARN L424 MainDispatcher]: Unable to annotate void* thread1(void* _argptr) { while (x1 < n) { x1 = x1 + x1; } return 0; } 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 [2024-01-29 22:56:10,192 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/bench-exp3x3.wvr.c[2703,2716] [2024-01-29 22:56:10,197 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:56:10,208 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:56:10,212 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10 WrapperNode [2024-01-29 22:56:10,212 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:56:10,213 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:56:10,214 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:56:10,214 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:56:10,219 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,238 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,267 INFO L138 Inliner]: procedures = 22, calls = 44, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 163 [2024-01-29 22:56:10,267 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:56:10,268 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:56:10,268 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:56:10,269 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:56:10,277 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,277 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,286 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,307 INFO L175 MemorySlicer]: Split 14 memory accesses to 7 slices as follows [2, 2, 2, 2, 2, 2, 2]. 14 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0, 0]. The 6 writes are split as follows [0, 1, 1, 1, 1, 1, 1]. [2024-01-29 22:56:10,307 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,308 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,324 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,327 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,342 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,343 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,346 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:56:10,347 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:56:10,347 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:56:10,347 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:56:10,348 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 10:56:10" (1/1) ... [2024-01-29 22:56:10,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:56:10,362 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:56:10,375 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 22:56:10,396 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 22:56:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:56:10,407 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:56:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:56:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:56:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:56:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 22:56:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 22:56:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 22:56:10,408 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 22:56:10,408 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:56:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:56:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:56:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:56:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:56:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-01-29 22:56:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-01-29 22:56:10,409 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-01-29 22:56:10,409 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2024-01-29 22:56:10,410 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:56:10,410 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-01-29 22:56:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-01-29 22:56:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:56:10,411 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:56:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:56:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:56:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:56:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:56:10,411 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 22:56:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-01-29 22:56:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-01-29 22:56:10,412 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:56:10,413 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 22:56:10,507 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:56:10,508 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:56:10,868 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:56:10,869 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:56:10,995 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:56:10,995 INFO L320 CfgBuilder]: Removed 6 assume(true) statements. [2024-01-29 22:56:10,996 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:56:10 BoogieIcfgContainer [2024-01-29 22:56:10,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:56:10,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:56:10,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:56:11,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:56:11,000 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:56:09" (1/4) ... [2024-01-29 22:56:11,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a192d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:56:11, skipping insertion in model container [2024-01-29 22:56:11,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:56:09" (2/4) ... [2024-01-29 22:56:11,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a192d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:56:11, skipping insertion in model container [2024-01-29 22:56:11,001 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 10:56:10" (3/4) ... [2024-01-29 22:56:11,002 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76a192d and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:56:11, skipping insertion in model container [2024-01-29 22:56:11,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:56:10" (4/4) ... [2024-01-29 22:56:11,003 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp3x3.wvr.c [2024-01-29 22:56:11,016 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:56:11,016 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 57 error locations. [2024-01-29 22:56:11,017 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:56:11,093 INFO L144 ThreadInstanceAdder]: Constructed 6 joinOtherThreadTransitions. [2024-01-29 22:56:11,127 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 176 places, 163 transitions, 368 flow [2024-01-29 22:56:11,183 INFO L124 PetriNetUnfolderBase]: 6/157 cut-off events. [2024-01-29 22:56:11,184 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-01-29 22:56:11,188 INFO L83 FinitePrefix]: Finished finitePrefix Result has 182 conditions, 157 events. 6/157 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 313 event pairs, 0 based on Foata normal form. 0/94 useless extension candidates. Maximal degree in co-relation 140. Up to 2 conditions per place. [2024-01-29 22:56:11,188 INFO L82 GeneralOperation]: Start removeDead. Operand has 176 places, 163 transitions, 368 flow [2024-01-29 22:56:11,194 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 169 places, 156 transitions, 348 flow [2024-01-29 22:56:11,206 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:56:11,212 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;@15c852d9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:56:11,213 INFO L358 AbstractCegarLoop]: Starting to check reachability of 87 error locations. [2024-01-29 22:56:11,215 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:56:11,215 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:56:11,216 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:56:11,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:56:11,217 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:56:11,218 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 84 more)] === [2024-01-29 22:56:11,222 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:56:11,222 INFO L85 PathProgramCache]: Analyzing trace with hash 17048, now seen corresponding path program 1 times [2024-01-29 22:56:11,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:56:11,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612024129] [2024-01-29 22:56:11,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:56:11,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:56:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:56:11,605 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 22:56:11,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:56:11,606 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612024129] [2024-01-29 22:56:11,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612024129] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:56:11,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:56:11,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:56:11,609 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010110758] [2024-01-29 22:56:11,611 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:56:11,617 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:56:11,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:56:11,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:56:11,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:56:11,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 97 out of 163 [2024-01-29 22:56:11,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 169 places, 156 transitions, 348 flow. Second operand has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 22:56:11,750 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:56:11,750 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 97 of 163 [2024-01-29 22:56:11,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:56:35,822 INFO L124 PetriNetUnfolderBase]: 296882/377399 cut-off events. [2024-01-29 22:56:35,823 INFO L125 PetriNetUnfolderBase]: For 10404/10404 co-relation queries the response was YES. [2024-01-29 22:56:37,230 INFO L83 FinitePrefix]: Finished finitePrefix Result has 731331 conditions, 377399 events. 296882/377399 cut-off events. For 10404/10404 co-relation queries the response was YES. Maximal size of possible extension queue 15117. Compared 2480012 event pairs, 193752 based on Foata normal form. 6/252019 useless extension candidates. Maximal degree in co-relation 622656. Up to 342206 conditions per place. [2024-01-29 22:56:39,613 INFO L140 encePairwiseOnDemand]: 154/163 looper letters, 56 selfloop transitions, 2 changer transitions 0/149 dead transitions. [2024-01-29 22:56:39,613 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 149 transitions, 450 flow [2024-01-29 22:56:39,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:56:39,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:56:39,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 356 transitions. [2024-01-29 22:56:39,623 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7280163599182005 [2024-01-29 22:56:39,624 INFO L175 Difference]: Start difference. First operand has 169 places, 156 transitions, 348 flow. Second operand 3 states and 356 transitions. [2024-01-29 22:56:39,625 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 149 transitions, 450 flow [2024-01-29 22:56:40,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 149 transitions, 426 flow, removed 0 selfloop flow, removed 12 redundant places. [2024-01-29 22:56:40,473 INFO L231 Difference]: Finished difference. Result has 152 places, 149 transitions, 314 flow [2024-01-29 22:56:40,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=163, PETRI_DIFFERENCE_MINUEND_FLOW=310, PETRI_DIFFERENCE_MINUEND_PLACES=150, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=314, PETRI_PLACES=152, PETRI_TRANSITIONS=149} [2024-01-29 22:56:40,477 INFO L281 CegarLoopForPetriNet]: 169 programPoint places, -17 predicate places. [2024-01-29 22:56:40,477 INFO L495 AbstractCegarLoop]: Abstraction has has 152 places, 149 transitions, 314 flow [2024-01-29 22:56:40,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 97.66666666666667) internal successors, (293), 3 states have internal predecessors, (293), 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 22:56:40,478 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:56:40,478 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:56:40,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:56:40,478 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (and 84 more)] === [2024-01-29 22:56:40,479 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:56:40,479 INFO L85 PathProgramCache]: Analyzing trace with hash -1417761506, now seen corresponding path program 1 times [2024-01-29 22:56:40,479 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:56:40,479 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961183557] [2024-01-29 22:56:40,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:56:40,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:56:40,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:56:40,591 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 22:56:40,591 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:56:40,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961183557] [2024-01-29 22:56:40,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961183557] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:56:40,592 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:56:40,592 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-29 22:56:40,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408480795] [2024-01-29 22:56:40,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:56:40,593 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-29 22:56:40,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:56:40,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-29 22:56:40,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-29 22:56:40,712 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 163 [2024-01-29 22:56:40,713 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 149 transitions, 314 flow. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 4 states have internal predecessors, (356), 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 22:56:40,713 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:56:40,713 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 163 [2024-01-29 22:56:40,714 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand