./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.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/parallel-ticket-3.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3d25acf6 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/parallel-ticket-3.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-ticket-3.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-3d25acf-m [2024-01-30 14:24:18,135 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:24:18,175 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:24:18,179 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:24:18,179 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:24:18,213 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:24:18,213 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:24:18,214 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:24:18,214 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:24:18,214 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:24:18,215 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:24:18,215 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:24:18,215 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:24:18,216 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:24:18,216 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:24:18,216 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:24:18,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:24:18,217 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:24:18,217 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:24:18,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:24:18,218 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:24:18,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:24:18,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:24:18,219 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:24:18,219 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:24:18,219 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:24:18,219 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:24:18,220 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:24:18,220 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:24:18,220 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:24:18,221 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:24:18,221 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:24:18,221 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:24:18,221 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:24:18,222 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:24:18,222 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:24:18,222 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:24:18,222 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:24:18,223 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:24:18,223 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:24:18,223 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:24:18,223 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:24:18,223 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:24:18,224 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:24:18,443 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:24:18,464 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:24:18,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:24:18,468 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:24:18,469 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:24:18,470 INFO L431 ainManager$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/parallel-ticket-3.wvr.yml/witness.yml [2024-01-30 14:24:18,658 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:24:18,659 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:24:18,661 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-01-30 14:24:19,740 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:24:19,897 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:24:19,897 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2024-01-30 14:24:19,903 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6790ad633/a127b3e66a5e4346a6f3ce02f967d64e/FLAG11e23b163 [2024-01-30 14:24:19,912 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6790ad633/a127b3e66a5e4346a6f3ce02f967d64e [2024-01-30 14:24:19,913 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:24:19,914 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:24:19,915 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:24:19,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:24:19,919 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:24:19,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:18" (1/2) ... [2024-01-30 14:24:19,920 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d96155 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:19, skipping insertion in model container [2024-01-30 14:24:19,920 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:18" (1/2) ... [2024-01-30 14:24:19,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@35e8319 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:19, skipping insertion in model container [2024-01-30 14:24:19,922 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:24:19" (2/2) ... [2024-01-30 14:24:19,922 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54d96155 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19, skipping insertion in model container [2024-01-30 14:24:19,922 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:24:19" (2/2) ... [2024-01-30 14:24:19,922 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:24:19,954 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:24:19,954 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,955 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,955 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,955 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,955 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,955 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,955 INFO L98 nessWitnessExtractor]: Location invariant before [L95-L95] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,955 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] ((x == 1) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,956 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,956 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] ((x == 0) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,956 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,956 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (((((m2 == 0) && (m3 == 0)) && (s == 0)) && (t == 0)) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:19,956 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,956 INFO L98 nessWitnessExtractor]: Location invariant before [L108-L108] (((s == 0) && (t == 0)) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:19,956 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,957 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] ((-2147483647 <= s) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,957 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,957 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,957 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] ((((m3 == 0) && (s == 0)) && (t == 0)) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:19,957 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] ((-2147483647 <= s) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,957 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,957 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] ((-2147483647 <= t) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,958 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,958 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,958 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] (x == 0) && (b == (_Bool)0) [2024-01-30 14:24:19,958 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (b == (_Bool)0) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:24:19,958 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] b == (_Bool)0 [2024-01-30 14:24:19,958 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,958 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,959 INFO L98 nessWitnessExtractor]: Location invariant before [L116-L116] b == (_Bool)0 || b == (_Bool)1 [2024-01-30 14:24:19,959 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] (b == (_Bool)0) && (val == (_Bool)0 || val == (_Bool)1) [2024-01-30 14:24:19,959 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] ((-2147483647 <= s) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,959 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,959 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,959 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] ((((((m1 == 0) && (m2 == 0)) && (m3 == 0)) && (s == 0)) && (t == 0)) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:19,959 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L110-L110] (x == 0) && (b == (_Bool)0) [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L109-L109] ((t == 0) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] ((-2147483647 <= t) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,960 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,961 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,961 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] ((-2147483647 <= t) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,961 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,961 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,961 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (b == (_Bool)0) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:24:19,961 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,961 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:19,962 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,962 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,962 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,962 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] b == (_Bool)0 || b == (_Bool)1 [2024-01-30 14:24:19,962 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-30 14:24:19,977 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:24:20,127 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/parallel-ticket-3.wvr.c[3128,3141] [2024-01-30 14:24:20,137 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:24:20,150 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:24:20,157 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry [2024-01-30 14:24:20,160 WARN L424 MainDispatcher]: Unable to annotate extern int pthread_create (pthread_t *__restrict __newthread, const pthread_attr_t *__restrict __attr, void *(*__start_routine) (void *), void *__restrict __arg) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 3))); 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 [2024-01-30 14:24:20,255 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/parallel-ticket-3.wvr.c[3128,3141] [2024-01-30 14:24:20,256 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:24:20,270 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:24:20,270 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20 WrapperNode [2024-01-30 14:24:20,270 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:24:20,271 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:24:20,271 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:24:20,271 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:24:20,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,295 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,327 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 221 [2024-01-30 14:24:20,329 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:24:20,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:24:20,330 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:24:20,330 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:24:20,338 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,338 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,349 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,373 INFO L175 MemorySlicer]: Split 8 memory accesses to 4 slices as follows [2, 2, 2, 2]. 25 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0]. The 3 writes are split as follows [0, 1, 1, 1]. [2024-01-30 14:24:20,373 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,373 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,384 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,390 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,391 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,392 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,399 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:24:20,399 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:24:20,400 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:24:20,400 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:24:20,400 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (1/1) ... [2024-01-30 14:24:20,407 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:24:20,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:24:20,431 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) [2024-01-30 14:24:20,433 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 [2024-01-30 14:24:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:24:20,465 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:24:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:24:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:24:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:24:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-30 14:24:20,466 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-30 14:24:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:24:20,466 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-30 14:24:20,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:24:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:24:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:24:20,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:24:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:24:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:24:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:24:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-30 14:24:20,468 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:24:20,470 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-30 14:24:20,561 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:24:20,563 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:24:20,907 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:24:20,908 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:24:21,095 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:24:21,095 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:24:21,097 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:24:21 BoogieIcfgContainer [2024-01-30 14:24:21,097 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:24:21,100 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:24:21,100 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:24:21,102 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:24:21,102 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:18" (1/4) ... [2024-01-30 14:24:21,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a34203 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:24:21, skipping insertion in model container [2024-01-30 14:24:21,103 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:24:19" (2/4) ... [2024-01-30 14:24:21,103 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a34203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:24:21, skipping insertion in model container [2024-01-30 14:24:21,104 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:20" (3/4) ... [2024-01-30 14:24:21,105 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70a34203 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:24:21, skipping insertion in model container [2024-01-30 14:24:21,105 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:24:21" (4/4) ... [2024-01-30 14:24:21,106 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2024-01-30 14:24:21,119 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:24:21,120 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 55 error locations. [2024-01-30 14:24:21,120 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:24:21,187 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-01-30 14:24:21,226 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 123 places, 113 transitions, 247 flow [2024-01-30 14:24:21,280 INFO L124 PetriNetUnfolderBase]: 0/110 cut-off events. [2024-01-30 14:24:21,280 INFO L125 PetriNetUnfolderBase]: For 3/3 co-relation queries the response was YES. [2024-01-30 14:24:21,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 0/110 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 352 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-30 14:24:21,282 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 113 transitions, 247 flow [2024-01-30 14:24:21,287 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 109 transitions, 236 flow [2024-01-30 14:24:21,296 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:24:21,302 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;@244be2c6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:24:21,302 INFO L358 AbstractCegarLoop]: Starting to check reachability of 103 error locations. [2024-01-30 14:24:21,305 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:24:21,306 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:24:21,306 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:24:21,306 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:21,306 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:24:21,307 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:21,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:21,311 INFO L85 PathProgramCache]: Analyzing trace with hash 18194, now seen corresponding path program 1 times [2024-01-30 14:24:21,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:21,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1817608040] [2024-01-30 14:24:21,318 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:21,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:21,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:21,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:21,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1817608040] [2024-01-30 14:24:21,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1817608040] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:21,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:21,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:24:21,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743709786] [2024-01-30 14:24:21,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:21,595 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:21,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:21,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:21,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:21,635 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 36 out of 113 [2024-01-30 14:24:21,638 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 119 places, 109 transitions, 236 flow. Second operand has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-01-30 14:24:21,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:21,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 36 of 113 [2024-01-30 14:24:21,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:23,262 INFO L124 PetriNetUnfolderBase]: 10317/16618 cut-off events. [2024-01-30 14:24:23,267 INFO L125 PetriNetUnfolderBase]: For 207/207 co-relation queries the response was YES. [2024-01-30 14:24:23,289 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32191 conditions, 16618 events. 10317/16618 cut-off events. For 207/207 co-relation queries the response was YES. Maximal size of possible extension queue 887. Compared 138616 event pairs, 10317 based on Foata normal form. 0/8615 useless extension candidates. Maximal degree in co-relation 30260. Up to 15045 conditions per place. [2024-01-30 14:24:23,428 INFO L140 encePairwiseOnDemand]: 100/113 looper letters, 63 selfloop transitions, 2 changer transitions 0/98 dead transitions. [2024-01-30 14:24:23,428 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 98 transitions, 344 flow [2024-01-30 14:24:23,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:23,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:23,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 184 transitions. [2024-01-30 14:24:23,440 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5427728613569321 [2024-01-30 14:24:23,441 INFO L175 Difference]: Start difference. First operand has 119 places, 109 transitions, 236 flow. Second operand 3 states and 184 transitions. [2024-01-30 14:24:23,442 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 98 transitions, 344 flow [2024-01-30 14:24:23,502 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 98 transitions, 332 flow, removed 0 selfloop flow, removed 6 redundant places. [2024-01-30 14:24:23,504 INFO L231 Difference]: Finished difference. Result has 104 places, 98 transitions, 206 flow [2024-01-30 14:24:23,506 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=202, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=206, PETRI_PLACES=104, PETRI_TRANSITIONS=98} [2024-01-30 14:24:23,509 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -15 predicate places. [2024-01-30 14:24:23,509 INFO L495 AbstractCegarLoop]: Abstraction has has 104 places, 98 transitions, 206 flow [2024-01-30 14:24:23,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.666666666666664) internal successors, (110), 3 states have internal predecessors, (110), 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) [2024-01-30 14:24:23,510 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:23,510 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:24:23,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:24:23,510 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:23,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:23,511 INFO L85 PathProgramCache]: Analyzing trace with hash 564656, now seen corresponding path program 1 times [2024-01-30 14:24:23,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:23,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006126854] [2024-01-30 14:24:23,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:23,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:23,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:23,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:23,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:23,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006126854] [2024-01-30 14:24:23,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1006126854] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:23,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:23,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:23,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214494653] [2024-01-30 14:24:23,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:23,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:23,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:23,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:23,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:23,657 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 37 out of 113 [2024-01-30 14:24:23,658 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 98 transitions, 206 flow. Second operand has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-01-30 14:24:23,658 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:23,658 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 37 of 113 [2024-01-30 14:24:23,658 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:24,833 INFO L124 PetriNetUnfolderBase]: 10317/16617 cut-off events. [2024-01-30 14:24:24,833 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-30 14:24:24,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31849 conditions, 16617 events. 10317/16617 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 138737 event pairs, 10317 based on Foata normal form. 0/8615 useless extension candidates. Maximal degree in co-relation 31840. Up to 15043 conditions per place. [2024-01-30 14:24:24,908 INFO L140 encePairwiseOnDemand]: 110/113 looper letters, 62 selfloop transitions, 2 changer transitions 0/97 dead transitions. [2024-01-30 14:24:24,909 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 97 transitions, 332 flow [2024-01-30 14:24:24,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:24,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:24,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 176 transitions. [2024-01-30 14:24:24,910 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5191740412979351 [2024-01-30 14:24:24,911 INFO L175 Difference]: Start difference. First operand has 104 places, 98 transitions, 206 flow. Second operand 3 states and 176 transitions. [2024-01-30 14:24:24,911 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 97 transitions, 332 flow [2024-01-30 14:24:24,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 103 places, 97 transitions, 328 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:24,913 INFO L231 Difference]: Finished difference. Result has 103 places, 97 transitions, 204 flow [2024-01-30 14:24:24,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=97, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=204, PETRI_PLACES=103, PETRI_TRANSITIONS=97} [2024-01-30 14:24:24,913 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -16 predicate places. [2024-01-30 14:24:24,914 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 204 flow [2024-01-30 14:24:24,914 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 37.75) internal successors, (151), 4 states have internal predecessors, (151), 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) [2024-01-30 14:24:24,914 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:24,914 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:24:24,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:24:24,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:24,915 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:24,915 INFO L85 PathProgramCache]: Analyzing trace with hash 17504981, now seen corresponding path program 1 times [2024-01-30 14:24:24,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:24,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175909410] [2024-01-30 14:24:24,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:24,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:24,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:24,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:24,999 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:24,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175909410] [2024-01-30 14:24:24,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175909410] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:24,999 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:25,000 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:25,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490926589] [2024-01-30 14:24:25,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:25,000 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:25,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:25,001 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:25,001 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:25,011 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 113 [2024-01-30 14:24:25,012 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 204 flow. Second operand has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2024-01-30 14:24:25,012 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:25,013 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 113 [2024-01-30 14:24:25,013 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:26,209 INFO L124 PetriNetUnfolderBase]: 10317/16616 cut-off events. [2024-01-30 14:24:26,209 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-30 14:24:26,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31847 conditions, 16616 events. 10317/16616 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 885. Compared 138497 event pairs, 10317 based on Foata normal form. 0/8615 useless extension candidates. Maximal degree in co-relation 31836. Up to 15041 conditions per place. [2024-01-30 14:24:26,469 INFO L140 encePairwiseOnDemand]: 110/113 looper letters, 61 selfloop transitions, 2 changer transitions 0/96 dead transitions. [2024-01-30 14:24:26,470 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 96 transitions, 328 flow [2024-01-30 14:24:26,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:26,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:26,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 178 transitions. [2024-01-30 14:24:26,471 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5250737463126843 [2024-01-30 14:24:26,471 INFO L175 Difference]: Start difference. First operand has 103 places, 97 transitions, 204 flow. Second operand 3 states and 178 transitions. [2024-01-30 14:24:26,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 96 transitions, 328 flow [2024-01-30 14:24:26,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 96 transitions, 324 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:26,473 INFO L231 Difference]: Finished difference. Result has 102 places, 96 transitions, 202 flow [2024-01-30 14:24:26,473 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=198, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=202, PETRI_PLACES=102, PETRI_TRANSITIONS=96} [2024-01-30 14:24:26,474 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -17 predicate places. [2024-01-30 14:24:26,474 INFO L495 AbstractCegarLoop]: Abstraction has has 102 places, 96 transitions, 202 flow [2024-01-30 14:24:26,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.0) internal successors, (156), 4 states have internal predecessors, (156), 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) [2024-01-30 14:24:26,475 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:26,475 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:24:26,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:24:26,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:26,475 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:26,475 INFO L85 PathProgramCache]: Analyzing trace with hash 542654968, now seen corresponding path program 1 times [2024-01-30 14:24:26,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:26,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [933795014] [2024-01-30 14:24:26,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:26,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:26,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:26,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:26,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:26,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [933795014] [2024-01-30 14:24:26,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [933795014] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:26,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:26,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:26,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471614539] [2024-01-30 14:24:26,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:26,523 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:26,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:26,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:26,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:26,537 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 113 [2024-01-30 14:24:26,538 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 96 transitions, 202 flow. Second operand has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-30 14:24:26,538 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:26,538 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 113 [2024-01-30 14:24:26,538 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:27,496 INFO L124 PetriNetUnfolderBase]: 10200/17451 cut-off events. [2024-01-30 14:24:27,496 INFO L125 PetriNetUnfolderBase]: For 12/12 co-relation queries the response was YES. [2024-01-30 14:24:27,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 32507 conditions, 17451 events. 10200/17451 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 960. Compared 148664 event pairs, 6533 based on Foata normal form. 0/9714 useless extension candidates. Maximal degree in co-relation 32494. Up to 14814 conditions per place. [2024-01-30 14:24:27,570 INFO L140 encePairwiseOnDemand]: 102/113 looper letters, 66 selfloop transitions, 6 changer transitions 0/105 dead transitions. [2024-01-30 14:24:27,570 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 105 transitions, 366 flow [2024-01-30 14:24:27,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:27,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:27,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 194 transitions. [2024-01-30 14:24:27,572 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5722713864306784 [2024-01-30 14:24:27,572 INFO L175 Difference]: Start difference. First operand has 102 places, 96 transitions, 202 flow. Second operand 3 states and 194 transitions. [2024-01-30 14:24:27,572 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 105 transitions, 366 flow [2024-01-30 14:24:27,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 100 places, 105 transitions, 362 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:27,575 INFO L231 Difference]: Finished difference. Result has 101 places, 97 transitions, 230 flow [2024-01-30 14:24:27,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=94, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=230, PETRI_PLACES=101, PETRI_TRANSITIONS=97} [2024-01-30 14:24:27,576 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -18 predicate places. [2024-01-30 14:24:27,577 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 97 transitions, 230 flow [2024-01-30 14:24:27,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 40.25) internal successors, (161), 4 states have internal predecessors, (161), 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) [2024-01-30 14:24:27,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:27,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:24:27,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:24:27,578 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:27,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:27,578 INFO L85 PathProgramCache]: Analyzing trace with hash -357564536, now seen corresponding path program 1 times [2024-01-30 14:24:27,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:27,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323486397] [2024-01-30 14:24:27,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:27,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:27,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:27,637 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:27,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:27,638 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323486397] [2024-01-30 14:24:27,638 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [323486397] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:27,638 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:27,638 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:27,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726322719] [2024-01-30 14:24:27,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:27,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:27,639 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:27,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:27,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:27,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 113 [2024-01-30 14:24:27,652 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 97 transitions, 230 flow. Second operand has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2024-01-30 14:24:27,652 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:27,653 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 113 [2024-01-30 14:24:27,653 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:28,588 INFO L124 PetriNetUnfolderBase]: 10200/17450 cut-off events. [2024-01-30 14:24:28,589 INFO L125 PetriNetUnfolderBase]: For 855/855 co-relation queries the response was YES. [2024-01-30 14:24:28,628 INFO L83 FinitePrefix]: Finished finitePrefix Result has 34568 conditions, 17450 events. 10200/17450 cut-off events. For 855/855 co-relation queries the response was YES. Maximal size of possible extension queue 955. Compared 148474 event pairs, 6533 based on Foata normal form. 0/10737 useless extension candidates. Maximal degree in co-relation 11767. Up to 14812 conditions per place. [2024-01-30 14:24:28,718 INFO L140 encePairwiseOnDemand]: 106/113 looper letters, 65 selfloop transitions, 6 changer transitions 0/104 dead transitions. [2024-01-30 14:24:28,718 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 104 transitions, 388 flow [2024-01-30 14:24:28,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:28,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:28,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 192 transitions. [2024-01-30 14:24:28,719 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5663716814159292 [2024-01-30 14:24:28,720 INFO L175 Difference]: Start difference. First operand has 101 places, 97 transitions, 230 flow. Second operand 3 states and 192 transitions. [2024-01-30 14:24:28,720 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 104 transitions, 388 flow [2024-01-30 14:24:28,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 104 transitions, 382 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:24:28,724 INFO L231 Difference]: Finished difference. Result has 101 places, 96 transitions, 234 flow [2024-01-30 14:24:28,724 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=222, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=234, PETRI_PLACES=101, PETRI_TRANSITIONS=96} [2024-01-30 14:24:28,724 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -18 predicate places. [2024-01-30 14:24:28,725 INFO L495 AbstractCegarLoop]: Abstraction has has 101 places, 96 transitions, 234 flow [2024-01-30 14:24:28,725 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 41.5) internal successors, (166), 4 states have internal predecessors, (166), 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) [2024-01-30 14:24:28,725 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:28,725 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:28,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:24:28,726 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:28,726 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:28,726 INFO L85 PathProgramCache]: Analyzing trace with hash 1800401870, now seen corresponding path program 1 times [2024-01-30 14:24:28,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:28,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732092185] [2024-01-30 14:24:28,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:28,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:28,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:28,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:28,765 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732092185] [2024-01-30 14:24:28,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732092185] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:28,765 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:28,766 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:28,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023284115] [2024-01-30 14:24:28,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:28,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:28,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:28,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:28,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:28,783 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 41 out of 113 [2024-01-30 14:24:28,783 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 101 places, 96 transitions, 234 flow. Second operand has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-01-30 14:24:28,783 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:28,784 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 41 of 113 [2024-01-30 14:24:28,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:29,940 INFO L124 PetriNetUnfolderBase]: 12579/21428 cut-off events. [2024-01-30 14:24:29,941 INFO L125 PetriNetUnfolderBase]: For 1240/1240 co-relation queries the response was YES. [2024-01-30 14:24:29,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42410 conditions, 21428 events. 12579/21428 cut-off events. For 1240/1240 co-relation queries the response was YES. Maximal size of possible extension queue 1116. Compared 188249 event pairs, 5825 based on Foata normal form. 1/12971 useless extension candidates. Maximal degree in co-relation 35387. Up to 10660 conditions per place. [2024-01-30 14:24:30,041 INFO L140 encePairwiseOnDemand]: 104/113 looper letters, 117 selfloop transitions, 7 changer transitions 1/158 dead transitions. [2024-01-30 14:24:30,041 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 158 transitions, 631 flow [2024-01-30 14:24:30,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:24:30,042 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:24:30,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 288 transitions. [2024-01-30 14:24:30,043 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6371681415929203 [2024-01-30 14:24:30,043 INFO L175 Difference]: Start difference. First operand has 101 places, 96 transitions, 234 flow. Second operand 4 states and 288 transitions. [2024-01-30 14:24:30,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 158 transitions, 631 flow [2024-01-30 14:24:30,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 158 transitions, 619 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:30,045 INFO L231 Difference]: Finished difference. Result has 103 places, 97 transitions, 253 flow [2024-01-30 14:24:30,046 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=220, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=103, PETRI_TRANSITIONS=97} [2024-01-30 14:24:30,046 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -16 predicate places. [2024-01-30 14:24:30,046 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 97 transitions, 253 flow [2024-01-30 14:24:30,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 42.75) internal successors, (171), 4 states have internal predecessors, (171), 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) [2024-01-30 14:24:30,047 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:30,047 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:30,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:24:30,047 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:30,047 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:30,047 INFO L85 PathProgramCache]: Analyzing trace with hash -22116325, now seen corresponding path program 1 times [2024-01-30 14:24:30,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:30,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1754609032] [2024-01-30 14:24:30,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:30,048 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:30,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:30,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-30 14:24:30,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:30,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1754609032] [2024-01-30 14:24:30,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1754609032] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:30,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:30,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:30,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [393023576] [2024-01-30 14:24:30,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:30,065 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:30,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:30,066 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:30,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:30,074 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 42 out of 113 [2024-01-30 14:24:30,075 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 97 transitions, 253 flow. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-01-30 14:24:30,075 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:30,075 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 42 of 113 [2024-01-30 14:24:30,075 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:31,296 INFO L124 PetriNetUnfolderBase]: 12579/21515 cut-off events. [2024-01-30 14:24:31,297 INFO L125 PetriNetUnfolderBase]: For 3741/3741 co-relation queries the response was YES. [2024-01-30 14:24:31,326 INFO L83 FinitePrefix]: Finished finitePrefix Result has 44580 conditions, 21515 events. 12579/21515 cut-off events. For 3741/3741 co-relation queries the response was YES. Maximal size of possible extension queue 1137. Compared 189848 event pairs, 5316 based on Foata normal form. 0/14507 useless extension candidates. Maximal degree in co-relation 17460. Up to 13445 conditions per place. [2024-01-30 14:24:31,403 INFO L140 encePairwiseOnDemand]: 107/113 looper letters, 90 selfloop transitions, 7 changer transitions 0/130 dead transitions. [2024-01-30 14:24:31,404 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 130 transitions, 545 flow [2024-01-30 14:24:31,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:31,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:31,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 217 transitions. [2024-01-30 14:24:31,405 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.640117994100295 [2024-01-30 14:24:31,405 INFO L175 Difference]: Start difference. First operand has 103 places, 97 transitions, 253 flow. Second operand 3 states and 217 transitions. [2024-01-30 14:24:31,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 130 transitions, 545 flow [2024-01-30 14:24:31,414 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 130 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:31,415 INFO L231 Difference]: Finished difference. Result has 103 places, 100 transitions, 287 flow [2024-01-30 14:24:31,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=113, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=96, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=89, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=287, PETRI_PLACES=103, PETRI_TRANSITIONS=100} [2024-01-30 14:24:31,416 INFO L281 CegarLoopForPetriNet]: 119 programPoint places, -16 predicate places. [2024-01-30 14:24:31,416 INFO L495 AbstractCegarLoop]: Abstraction has has 103 places, 100 transitions, 287 flow [2024-01-30 14:24:31,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-01-30 14:24:31,416 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:31,417 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:31,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:24:31,417 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 100 more)] === [2024-01-30 14:24:31,417 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:31,417 INFO L85 PathProgramCache]: Analyzing trace with hash -685605495, now seen corresponding path program 1 times [2024-01-30 14:24:31,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:31,418 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46328187] [2024-01-30 14:24:31,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:31,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:31,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:24:31,425 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:24:31,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:24:31,441 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:24:31,441 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:24:31,442 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (102 of 103 remaining) [2024-01-30 14:24:31,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (101 of 103 remaining) [2024-01-30 14:24:31,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (100 of 103 remaining) [2024-01-30 14:24:31,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (99 of 103 remaining) [2024-01-30 14:24:31,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (98 of 103 remaining) [2024-01-30 14:24:31,443 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (97 of 103 remaining) [2024-01-30 14:24:31,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (96 of 103 remaining) [2024-01-30 14:24:31,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (95 of 103 remaining) [2024-01-30 14:24:31,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (94 of 103 remaining) [2024-01-30 14:24:31,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (93 of 103 remaining) [2024-01-30 14:24:31,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (92 of 103 remaining) [2024-01-30 14:24:31,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (91 of 103 remaining) [2024-01-30 14:24:31,444 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (90 of 103 remaining) [2024-01-30 14:24:31,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (89 of 103 remaining) [2024-01-30 14:24:31,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (88 of 103 remaining) [2024-01-30 14:24:31,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (87 of 103 remaining) [2024-01-30 14:24:31,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (86 of 103 remaining) [2024-01-30 14:24:31,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (85 of 103 remaining) [2024-01-30 14:24:31,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (84 of 103 remaining) [2024-01-30 14:24:31,445 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (83 of 103 remaining) [2024-01-30 14:24:31,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (82 of 103 remaining) [2024-01-30 14:24:31,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (81 of 103 remaining) [2024-01-30 14:24:31,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (80 of 103 remaining) [2024-01-30 14:24:31,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (79 of 103 remaining) [2024-01-30 14:24:31,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (78 of 103 remaining) [2024-01-30 14:24:31,446 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (77 of 103 remaining) [2024-01-30 14:24:31,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (76 of 103 remaining) [2024-01-30 14:24:31,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (75 of 103 remaining) [2024-01-30 14:24:31,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (74 of 103 remaining) [2024-01-30 14:24:31,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (73 of 103 remaining) [2024-01-30 14:24:31,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 103 remaining) [2024-01-30 14:24:31,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 103 remaining) [2024-01-30 14:24:31,447 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 103 remaining) [2024-01-30 14:24:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 103 remaining) [2024-01-30 14:24:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 103 remaining) [2024-01-30 14:24:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 103 remaining) [2024-01-30 14:24:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 103 remaining) [2024-01-30 14:24:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 103 remaining) [2024-01-30 14:24:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 103 remaining) [2024-01-30 14:24:31,448 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 103 remaining) [2024-01-30 14:24:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err8ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 103 remaining) [2024-01-30 14:24:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err9ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 103 remaining) [2024-01-30 14:24:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err10ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 103 remaining) [2024-01-30 14:24:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err11ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 103 remaining) [2024-01-30 14:24:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err12ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 103 remaining) [2024-01-30 14:24:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err13ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 103 remaining) [2024-01-30 14:24:31,449 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 103 remaining) [2024-01-30 14:24:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 103 remaining) [2024-01-30 14:24:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 103 remaining) [2024-01-30 14:24:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 103 remaining) [2024-01-30 14:24:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 103 remaining) [2024-01-30 14:24:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 103 remaining) [2024-01-30 14:24:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 103 remaining) [2024-01-30 14:24:31,450 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9ASSERT_VIOLATIONERROR_FUNCTION (48 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (47 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (46 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (45 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 103 remaining) [2024-01-30 14:24:31,451 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 103 remaining) [2024-01-30 14:24:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 103 remaining) [2024-01-30 14:24:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 103 remaining) [2024-01-30 14:24:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 103 remaining) [2024-01-30 14:24:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 103 remaining) [2024-01-30 14:24:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 103 remaining) [2024-01-30 14:24:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 103 remaining) [2024-01-30 14:24:31,452 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 103 remaining) [2024-01-30 14:24:31,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (33 of 103 remaining) [2024-01-30 14:24:31,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (32 of 103 remaining) [2024-01-30 14:24:31,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (31 of 103 remaining) [2024-01-30 14:24:31,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 103 remaining) [2024-01-30 14:24:31,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 103 remaining) [2024-01-30 14:24:31,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 103 remaining) [2024-01-30 14:24:31,453 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 103 remaining) [2024-01-30 14:24:31,454 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 103 remaining) [2024-01-30 14:24:31,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 103 remaining) [2024-01-30 14:24:31,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 103 remaining) [2024-01-30 14:24:31,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 103 remaining) [2024-01-30 14:24:31,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 103 remaining) [2024-01-30 14:24:31,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 103 remaining) [2024-01-30 14:24:31,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 103 remaining) [2024-01-30 14:24:31,455 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 103 remaining) [2024-01-30 14:24:31,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 103 remaining) [2024-01-30 14:24:31,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 103 remaining) [2024-01-30 14:24:31,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 103 remaining) [2024-01-30 14:24:31,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 103 remaining) [2024-01-30 14:24:31,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 103 remaining) [2024-01-30 14:24:31,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err7ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 103 remaining) [2024-01-30 14:24:31,456 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err8ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 103 remaining) [2024-01-30 14:24:31,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 103 remaining) [2024-01-30 14:24:31,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err10ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 103 remaining) [2024-01-30 14:24:31,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err11ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 103 remaining) [2024-01-30 14:24:31,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err12ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 103 remaining) [2024-01-30 14:24:31,457 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread3Err13ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 103 remaining) [2024-01-30 14:24:31,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-01-30 14:24:31,458 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:31,463 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:24:31,463 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:24:31,478 INFO L503 ceAbstractionStarter]: Automizer considered 54 witness invariants [2024-01-30 14:24:31,478 INFO L504 ceAbstractionStarter]: WitnessConsidered=54 [2024-01-30 14:24:31,478 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:24:31 BasicIcfg [2024-01-30 14:24:31,478 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:24:31,479 INFO L158 Benchmark]: Toolchain (without parser) took 11565.18ms. Allocated memory was 161.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 117.5MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 913.4MB. Max. memory is 16.1GB. [2024-01-30 14:24:31,479 INFO L158 Benchmark]: Witness Parser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:24:31,479 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:24:31,480 INFO L158 Benchmark]: CACSL2BoogieTranslator took 355.74ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 98.0MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-01-30 14:24:31,480 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.92ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 95.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:24:31,480 INFO L158 Benchmark]: Boogie Preprocessor took 69.34ms. Allocated memory is still 161.5MB. Free memory was 95.2MB in the beginning and 92.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:24:31,480 INFO L158 Benchmark]: RCFGBuilder took 697.64ms. Allocated memory is still 161.5MB. Free memory was 92.4MB in the beginning and 105.9MB in the end (delta: -13.5MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. [2024-01-30 14:24:31,481 INFO L158 Benchmark]: TraceAbstraction took 10378.67ms. Allocated memory was 161.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 105.9MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 901.5MB. Max. memory is 16.1GB. [2024-01-30 14:24:31,482 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Witness Parser took 0.14ms. Allocated memory is still 107.0MB. Free memory is still 67.5MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 0.15ms. Allocated memory is still 107.0MB. Free memory is still 76.8MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 355.74ms. Allocated memory is still 161.5MB. Free memory was 117.5MB in the beginning and 98.0MB in the end (delta: 19.6MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.92ms. Allocated memory is still 161.5MB. Free memory was 98.0MB in the beginning and 95.2MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 69.34ms. Allocated memory is still 161.5MB. Free memory was 95.2MB in the beginning and 92.4MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 697.64ms. Allocated memory is still 161.5MB. Free memory was 92.4MB in the beginning and 105.9MB in the end (delta: -13.5MB). Peak memory consumption was 58.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10378.67ms. Allocated memory was 161.5MB in the beginning and 5.6GB in the end (delta: 5.4GB). Free memory was 105.9MB in the beginning and 4.6GB in the end (delta: -4.5GB). Peak memory consumption was 901.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 114]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] int m1, m2, m3, s, t, x; [L39] _Bool b; [L102] pthread_t t1, t2, t3; VAL [b=0, m1=0, m2=0, m3=0, s=0, t1={6:0}, t2={3:0}, t3={5:0}, t=0, x=0] [L105] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m1],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[m2],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[m3],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[s],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L105] m1 = __VERIFIER_nondet_int() [L106] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m2],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[m3],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[s],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L106] m2 = __VERIFIER_nondet_int() [L107] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m3],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[s],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L107] m3 = __VERIFIER_nondet_int() [L108] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[s],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L108] s = __VERIFIER_nondet_int() [L109] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L109] t = __VERIFIER_nondet_int() [L110] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L110] x = __VERIFIER_nondet_int() [L111] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] [L111] b = __VERIFIER_nondet_bool() [L114] CodeAnnotStmt[Assertion[BinaryExpression[LOGICOR,BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[1]]]]]] VAL [b=2, m1=0, m2=0, m3=0, s=0, t1={6:0}, t2={3:0}, t3={5:0}, t=0, x=0] - UnprovableResult [Line: 42]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 43]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 44]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 45]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 47]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 48]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 49]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 50]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 51]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 52]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 53]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 54]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 55]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 56]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 57]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 58]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 60]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 64]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 65]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 66]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 67]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 69]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 70]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 71]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 72]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 73]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 74]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 75]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 76]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 77]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 79]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 83]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 84]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 85]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 88]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 89]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 90]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 91]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 92]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 93]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 94]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 95]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 96]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 98]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 105]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 106]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 107]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 108]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 109]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 110]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 111]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 124]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 116]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 118]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - UnprovableResult [Line: 117]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 197 locations, 103 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 10.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 319 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 259 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 13 mSDsCounter, 66 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1051 IncrementalHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 66 mSolverCounterUnsat, 37 mSDtfsCounter, 1051 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=287occurred in iteration=7, InterpolantAutomatonStates: 22, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 28 ConstructedInterpolants, 0 QuantifiedInterpolants, 339 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2024-01-30 14:24:31,508 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE