./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-2.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-2.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-2.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/parallel-ticket-2.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 14:24:16,806 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-30 14:24:16,898 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-30 14:24:16,904 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-30 14:24:16,904 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-30 14:24:16,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-30 14:24:16,939 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-30 14:24:16,939 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-30 14:24:16,940 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-30 14:24:16,944 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-30 14:24:16,944 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-30 14:24:16,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-30 14:24:16,945 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-30 14:24:16,947 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-30 14:24:16,947 INFO L153 SettingsManager]: * Use SBE=true [2024-01-30 14:24:16,947 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-30 14:24:16,947 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-30 14:24:16,948 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-30 14:24:16,948 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-30 14:24:16,948 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-30 14:24:16,949 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-30 14:24:16,949 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-30 14:24:16,949 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-30 14:24:16,950 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-30 14:24:16,950 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-30 14:24:16,950 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-30 14:24:16,950 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-30 14:24:16,951 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-30 14:24:16,951 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-30 14:24:16,952 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-30 14:24:16,953 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-30 14:24:16,953 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-30 14:24:16,953 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:24:16,953 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-30 14:24:16,953 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-30 14:24:16,954 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-30 14:24:16,954 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-30 14:24:16,954 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-30 14:24:16,954 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-30 14:24:16,955 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-30 14:24:16,955 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-30 14:24:16,955 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-30 14:24:16,955 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-30 14:24:16,956 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-30 14:24:17,251 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-30 14:24:17,275 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-30 14:24:17,277 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-30 14:24:17,278 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-30 14:24:17,279 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-30 14:24:17,280 INFO L431 ainManager$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-2.wvr.yml/witness.yml [2024-01-30 14:24:17,432 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-30 14:24:17,432 INFO L274 PluginConnector]: CDTParser initialized [2024-01-30 14:24:17,433 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2024-01-30 14:24:18,545 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-30 14:24:18,754 INFO L384 CDTParser]: Found 1 translation units. [2024-01-30 14:24:18,754 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-2.wvr.c [2024-01-30 14:24:18,761 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116109aec/5cf361ed6ef548408fd9781b27356c38/FLAG88ef564cd [2024-01-30 14:24:18,773 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/116109aec/5cf361ed6ef548408fd9781b27356c38 [2024-01-30 14:24:18,773 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-30 14:24:18,775 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-30 14:24:18,776 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-30 14:24:18,776 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-30 14:24:18,781 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-30 14:24:18,782 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:17" (1/2) ... [2024-01-30 14:24:18,783 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625b065a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:18, skipping insertion in model container [2024-01-30 14:24:18,783 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:17" (1/2) ... [2024-01-30 14:24:18,784 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@38e66171 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 30.01 02:24:18, skipping insertion in model container [2024-01-30 14:24:18,785 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:24:18" (2/2) ... [2024-01-30 14:24:18,785 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@625b065a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:18, skipping insertion in model container [2024-01-30 14:24:18,786 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.01 02:24:18" (2/2) ... [2024-01-30 14:24:18,787 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-30 14:24:18,825 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-30 14:24:18,828 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,828 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] ((x == 1) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,829 INFO L98 nessWitnessExtractor]: Location invariant before [L75-L75] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,829 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] ((-2147483647 <= s) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,829 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,829 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] ((-2147483647 <= t) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,829 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] b == (_Bool)0 || b == (_Bool)1 [2024-01-30 14:24:18,830 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] b == (_Bool)0 [2024-01-30 14:24:18,830 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,830 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] ((x == 0) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,830 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (((s == 0) && (t == 0)) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:18,830 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,830 INFO L98 nessWitnessExtractor]: Location invariant before [L60-L60] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,831 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,844 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (((((m1 == 0) && (m2 == 0)) && (s == 0)) && (t == 0)) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:18,844 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,844 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] (x == 0) && (b == (_Bool)0) [2024-01-30 14:24:18,844 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,844 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (b == (_Bool)0) && ((unsigned long )_argptr == 0UL) [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,845 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] ((-2147483647 <= t) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (x == 0) && (b == (_Bool)0) [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] ((t == 0) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L94-L94] b == (_Bool)0 || b == (_Bool)1 [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] (b == (_Bool)0) && (val == (_Bool)0 || val == (_Bool)1) [2024-01-30 14:24:18,846 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] ((((m2 == 0) && (s == 0)) && (t == 0)) && (x == 0)) && (b == (_Bool)0) [2024-01-30 14:24:18,847 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] ((unsigned long )_argptr == 0UL) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,847 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] ((-2147483647 <= s) && ((unsigned long )_argptr == 0UL)) && (b == (_Bool)0 || b == (_Bool)1) [2024-01-30 14:24:18,847 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-30 14:24:18,897 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-30 14:24:19,062 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-2.wvr.c[2678,2691] [2024-01-30 14:24:19,068 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:24:19,080 INFO L202 MainTranslator]: Completed pre-run [2024-01-30 14:24:19,090 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 14:24:19,091 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 [2024-01-30 14:24:19,173 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-2.wvr.c[2678,2691] [2024-01-30 14:24:19,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-30 14:24:19,186 INFO L206 MainTranslator]: Completed translation [2024-01-30 14:24:19,186 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19 WrapperNode [2024-01-30 14:24:19,187 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-30 14:24:19,187 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-30 14:24:19,188 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-30 14:24:19,188 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-30 14:24:19,194 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,231 INFO L138 Inliner]: procedures = 21, calls = 40, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 164 [2024-01-30 14:24:19,232 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-30 14:24:19,233 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-30 14:24:19,233 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-30 14:24:19,233 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-30 14:24:19,243 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,243 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,255 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,271 INFO L175 MemorySlicer]: Split 6 memory accesses to 3 slices as follows [2, 2, 2]. 33 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0]. The 2 writes are split as follows [0, 1, 1]. [2024-01-30 14:24:19,271 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,272 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,281 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,289 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,292 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,294 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,300 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-30 14:24:19,301 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-30 14:24:19,304 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-30 14:24:19,304 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-30 14:24:19,305 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (1/1) ... [2024-01-30 14:24:19,310 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-30 14:24:19,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-30 14:24:19,336 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 14:24:19,340 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 14:24:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-30 14:24:19,365 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-30 14:24:19,365 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-30 14:24:19,366 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-30 14:24:19,366 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-30 14:24:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-30 14:24:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-30 14:24:19,367 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-30 14:24:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-30 14:24:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-30 14:24:19,367 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-30 14:24:19,368 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-30 14:24:19,369 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 14:24:19,453 INFO L244 CfgBuilder]: Building ICFG [2024-01-30 14:24:19,454 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-30 14:24:19,784 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-30 14:24:19,784 INFO L293 CfgBuilder]: Performing block encoding [2024-01-30 14:24:20,072 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-30 14:24:20,073 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-01-30 14:24:20,074 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:24:20 BoogieIcfgContainer [2024-01-30 14:24:20,075 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-30 14:24:20,078 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-30 14:24:20,078 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-30 14:24:20,081 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-30 14:24:20,082 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 30.01 02:24:17" (1/4) ... [2024-01-30 14:24:20,083 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1998757 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 30.01 02:24:20, skipping insertion in model container [2024-01-30 14:24:20,083 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.01 02:24:18" (2/4) ... [2024-01-30 14:24:20,084 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1998757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:24:20, skipping insertion in model container [2024-01-30 14:24:20,084 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.01 02:24:19" (3/4) ... [2024-01-30 14:24:20,085 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1998757 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.01 02:24:20, skipping insertion in model container [2024-01-30 14:24:20,085 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.01 02:24:20" (4/4) ... [2024-01-30 14:24:20,086 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-2.wvr.c [2024-01-30 14:24:20,102 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-30 14:24:20,103 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 40 error locations. [2024-01-30 14:24:20,103 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-30 14:24:20,172 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-01-30 14:24:20,218 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 89 places, 82 transitions, 178 flow [2024-01-30 14:24:20,266 INFO L124 PetriNetUnfolderBase]: 0/80 cut-off events. [2024-01-30 14:24:20,267 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-01-30 14:24:20,269 INFO L83 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 80 events. 0/80 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 175 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-01-30 14:24:20,269 INFO L82 GeneralOperation]: Start removeDead. Operand has 89 places, 82 transitions, 178 flow [2024-01-30 14:24:20,273 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 86 places, 79 transitions, 170 flow [2024-01-30 14:24:20,287 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-30 14:24:20,295 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;@6250050c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-30 14:24:20,296 INFO L358 AbstractCegarLoop]: Starting to check reachability of 73 error locations. [2024-01-30 14:24:20,297 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-30 14:24:20,298 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-30 14:24:20,298 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:24:20,298 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:20,299 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-30 14:24:20,299 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 70 more)] === [2024-01-30 14:24:20,304 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:20,304 INFO L85 PathProgramCache]: Analyzing trace with hash 14672, now seen corresponding path program 1 times [2024-01-30 14:24:20,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:20,314 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599580739] [2024-01-30 14:24:20,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:20,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:20,630 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 14:24:20,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:20,632 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599580739] [2024-01-30 14:24:20,632 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599580739] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:20,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:20,633 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-30 14:24:20,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290718332] [2024-01-30 14:24:20,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:20,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:20,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:20,676 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:20,677 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:20,702 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 25 out of 82 [2024-01-30 14:24:20,705 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 86 places, 79 transitions, 170 flow. Second operand has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:24:20,706 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:20,706 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 25 of 82 [2024-01-30 14:24:20,707 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:21,064 INFO L124 PetriNetUnfolderBase]: 501/1050 cut-off events. [2024-01-30 14:24:21,064 INFO L125 PetriNetUnfolderBase]: For 14/14 co-relation queries the response was YES. [2024-01-30 14:24:21,071 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2004 conditions, 1050 events. 501/1050 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7276 event pairs, 501 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 1854. Up to 907 conditions per place. [2024-01-30 14:24:21,082 INFO L140 encePairwiseOnDemand]: 72/82 looper letters, 46 selfloop transitions, 2 changer transitions 0/71 dead transitions. [2024-01-30 14:24:21,083 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 71 transitions, 250 flow [2024-01-30 14:24:21,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:21,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:21,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 131 transitions. [2024-01-30 14:24:21,097 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.532520325203252 [2024-01-30 14:24:21,099 INFO L175 Difference]: Start difference. First operand has 86 places, 79 transitions, 170 flow. Second operand 3 states and 131 transitions. [2024-01-30 14:24:21,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 71 transitions, 250 flow [2024-01-30 14:24:21,105 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 71 transitions, 242 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-01-30 14:24:21,108 INFO L231 Difference]: Finished difference. Result has 76 places, 71 transitions, 150 flow [2024-01-30 14:24:21,110 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=76, PETRI_TRANSITIONS=71} [2024-01-30 14:24:21,113 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2024-01-30 14:24:21,113 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 71 transitions, 150 flow [2024-01-30 14:24:21,114 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.666666666666668) internal successors, (77), 3 states have internal predecessors, (77), 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 14:24:21,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:21,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-30 14:24:21,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-30 14:24:21,115 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 70 more)] === [2024-01-30 14:24:21,115 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:21,115 INFO L85 PathProgramCache]: Analyzing trace with hash 455320, now seen corresponding path program 1 times [2024-01-30 14:24:21,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:21,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532125724] [2024-01-30 14:24:21,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:21,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:21,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:21,233 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 14:24:21,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:21,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532125724] [2024-01-30 14:24:21,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532125724] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:21,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:21,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:21,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585751911] [2024-01-30 14:24:21,235 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:21,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:21,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:21,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:21,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:21,248 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 82 [2024-01-30 14:24:21,249 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 71 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 14:24:21,249 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:21,249 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 82 [2024-01-30 14:24:21,249 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:21,450 INFO L124 PetriNetUnfolderBase]: 501/1049 cut-off events. [2024-01-30 14:24:21,450 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:24:21,452 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1975 conditions, 1049 events. 501/1049 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 7271 event pairs, 501 based on Foata normal form. 0/565 useless extension candidates. Maximal degree in co-relation 1966. Up to 905 conditions per place. [2024-01-30 14:24:21,457 INFO L140 encePairwiseOnDemand]: 79/82 looper letters, 45 selfloop transitions, 2 changer transitions 0/70 dead transitions. [2024-01-30 14:24:21,457 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 70 transitions, 242 flow [2024-01-30 14:24:21,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:21,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:21,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 126 transitions. [2024-01-30 14:24:21,459 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5121951219512195 [2024-01-30 14:24:21,460 INFO L175 Difference]: Start difference. First operand has 76 places, 71 transitions, 150 flow. Second operand 3 states and 126 transitions. [2024-01-30 14:24:21,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 70 transitions, 242 flow [2024-01-30 14:24:21,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 70 transitions, 238 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:21,462 INFO L231 Difference]: Finished difference. Result has 75 places, 70 transitions, 148 flow [2024-01-30 14:24:21,462 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=144, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=70, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=75, PETRI_TRANSITIONS=70} [2024-01-30 14:24:21,463 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -11 predicate places. [2024-01-30 14:24:21,463 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 70 transitions, 148 flow [2024-01-30 14:24:21,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 26.75) internal successors, (107), 4 states have internal predecessors, (107), 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 14:24:21,463 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:21,463 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-30 14:24:21,464 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-30 14:24:21,464 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 70 more)] === [2024-01-30 14:24:21,464 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:21,464 INFO L85 PathProgramCache]: Analyzing trace with hash 14115373, now seen corresponding path program 1 times [2024-01-30 14:24:21,465 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:21,465 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147781892] [2024-01-30 14:24:21,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:21,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:21,566 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 14:24:21,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:21,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147781892] [2024-01-30 14:24:21,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1147781892] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:21,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:21,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:21,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380020200] [2024-01-30 14:24:21,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:21,569 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:21,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:21,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:21,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:21,597 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 82 [2024-01-30 14:24:21,598 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 70 transitions, 148 flow. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 14:24:21,598 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:21,598 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 82 [2024-01-30 14:24:21,598 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:21,800 INFO L124 PetriNetUnfolderBase]: 484/1107 cut-off events. [2024-01-30 14:24:21,800 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-30 14:24:21,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2001 conditions, 1107 events. 484/1107 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7337 event pairs, 243 based on Foata normal form. 0/656 useless extension candidates. Maximal degree in co-relation 1990. Up to 852 conditions per place. [2024-01-30 14:24:21,809 INFO L140 encePairwiseOnDemand]: 73/82 looper letters, 47 selfloop transitions, 5 changer transitions 0/75 dead transitions. [2024-01-30 14:24:21,809 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 75 transitions, 263 flow [2024-01-30 14:24:21,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:21,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:21,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 137 transitions. [2024-01-30 14:24:21,814 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.556910569105691 [2024-01-30 14:24:21,814 INFO L175 Difference]: Start difference. First operand has 75 places, 70 transitions, 148 flow. Second operand 3 states and 137 transitions. [2024-01-30 14:24:21,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 75 transitions, 263 flow [2024-01-30 14:24:21,815 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 75 transitions, 259 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:21,818 INFO L231 Difference]: Finished difference. Result has 74 places, 70 transitions, 167 flow [2024-01-30 14:24:21,818 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=140, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=167, PETRI_PLACES=74, PETRI_TRANSITIONS=70} [2024-01-30 14:24:21,819 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2024-01-30 14:24:21,819 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 70 transitions, 167 flow [2024-01-30 14:24:21,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 4 states have internal predecessors, (112), 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 14:24:21,820 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:21,820 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-30 14:24:21,820 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-30 14:24:21,820 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 70 more)] === [2024-01-30 14:24:21,821 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:21,821 INFO L85 PathProgramCache]: Analyzing trace with hash 437576985, now seen corresponding path program 1 times [2024-01-30 14:24:21,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:21,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070807236] [2024-01-30 14:24:21,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:21,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:21,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:21,889 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 14:24:21,889 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:21,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070807236] [2024-01-30 14:24:21,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070807236] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:21,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:21,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:21,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1189644577] [2024-01-30 14:24:21,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:21,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:21,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:21,891 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:21,892 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:21,908 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 28 out of 82 [2024-01-30 14:24:21,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 70 transitions, 167 flow. Second operand has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 14:24:21,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:21,909 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 28 of 82 [2024-01-30 14:24:21,909 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:22,106 INFO L124 PetriNetUnfolderBase]: 484/1106 cut-off events. [2024-01-30 14:24:22,107 INFO L125 PetriNetUnfolderBase]: For 49/49 co-relation queries the response was YES. [2024-01-30 14:24:22,108 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2106 conditions, 1106 events. 484/1106 cut-off events. For 49/49 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7388 event pairs, 243 based on Foata normal form. 0/705 useless extension candidates. Maximal degree in co-relation 808. Up to 850 conditions per place. [2024-01-30 14:24:22,113 INFO L140 encePairwiseOnDemand]: 76/82 looper letters, 46 selfloop transitions, 5 changer transitions 0/74 dead transitions. [2024-01-30 14:24:22,113 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 74 transitions, 278 flow [2024-01-30 14:24:22,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:22,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:22,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 136 transitions. [2024-01-30 14:24:22,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5528455284552846 [2024-01-30 14:24:22,116 INFO L175 Difference]: Start difference. First operand has 74 places, 70 transitions, 167 flow. Second operand 3 states and 136 transitions. [2024-01-30 14:24:22,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 74 transitions, 278 flow [2024-01-30 14:24:22,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 74 transitions, 273 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-01-30 14:24:22,123 INFO L231 Difference]: Finished difference. Result has 74 places, 69 transitions, 170 flow [2024-01-30 14:24:22,124 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=160, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=170, PETRI_PLACES=74, PETRI_TRANSITIONS=69} [2024-01-30 14:24:22,129 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -12 predicate places. [2024-01-30 14:24:22,129 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 69 transitions, 170 flow [2024-01-30 14:24:22,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 29.25) internal successors, (117), 4 states have internal predecessors, (117), 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 14:24:22,130 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:22,130 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-30 14:24:22,131 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-01-30 14:24:22,131 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 70 more)] === [2024-01-30 14:24:22,131 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:22,132 INFO L85 PathProgramCache]: Analyzing trace with hash 679985131, now seen corresponding path program 1 times [2024-01-30 14:24:22,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:22,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33167124] [2024-01-30 14:24:22,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:22,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:22,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:22,189 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 14:24:22,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:22,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33167124] [2024-01-30 14:24:22,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33167124] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:22,190 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:22,191 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [588768736] [2024-01-30 14:24:22,191 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:22,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-30 14:24:22,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:22,192 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-30 14:24:22,193 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-01-30 14:24:22,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 29 out of 82 [2024-01-30 14:24:22,208 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 69 transitions, 170 flow. Second operand has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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 14:24:22,208 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:22,208 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 29 of 82 [2024-01-30 14:24:22,208 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:22,427 INFO L124 PetriNetUnfolderBase]: 547/1231 cut-off events. [2024-01-30 14:24:22,427 INFO L125 PetriNetUnfolderBase]: For 77/77 co-relation queries the response was YES. [2024-01-30 14:24:22,429 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2356 conditions, 1231 events. 547/1231 cut-off events. For 77/77 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8469 event pairs, 217 based on Foata normal form. 1/768 useless extension candidates. Maximal degree in co-relation 1926. Up to 523 conditions per place. [2024-01-30 14:24:22,435 INFO L140 encePairwiseOnDemand]: 74/82 looper letters, 73 selfloop transitions, 6 changer transitions 1/103 dead transitions. [2024-01-30 14:24:22,435 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 103 transitions, 410 flow [2024-01-30 14:24:22,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-30 14:24:22,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-30 14:24:22,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 196 transitions. [2024-01-30 14:24:22,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5975609756097561 [2024-01-30 14:24:22,437 INFO L175 Difference]: Start difference. First operand has 74 places, 69 transitions, 170 flow. Second operand 4 states and 196 transitions. [2024-01-30 14:24:22,437 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 103 transitions, 410 flow [2024-01-30 14:24:22,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 103 transitions, 400 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:22,441 INFO L231 Difference]: Finished difference. Result has 76 places, 69 transitions, 183 flow [2024-01-30 14:24:22,441 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=183, PETRI_PLACES=76, PETRI_TRANSITIONS=69} [2024-01-30 14:24:22,443 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -10 predicate places. [2024-01-30 14:24:22,444 INFO L495 AbstractCegarLoop]: Abstraction has has 76 places, 69 transitions, 183 flow [2024-01-30 14:24:22,444 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 30.5) internal successors, (122), 4 states have internal predecessors, (122), 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 14:24:22,444 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:22,444 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:22,444 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-01-30 14:24:22,444 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 70 more)] === [2024-01-30 14:24:22,445 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:22,445 INFO L85 PathProgramCache]: Analyzing trace with hash -395296968, now seen corresponding path program 1 times [2024-01-30 14:24:22,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:22,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [164751032] [2024-01-30 14:24:22,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:22,446 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-30 14:24:22,487 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 14:24:22,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-30 14:24:22,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [164751032] [2024-01-30 14:24:22,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [164751032] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-30 14:24:22,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-30 14:24:22,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-01-30 14:24:22,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163470228] [2024-01-30 14:24:22,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-30 14:24:22,489 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-30 14:24:22,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-30 14:24:22,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-30 14:24:22,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-30 14:24:22,504 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 82 [2024-01-30 14:24:22,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 69 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 14:24:22,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-30 14:24:22,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 82 [2024-01-30 14:24:22,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-30 14:24:22,705 INFO L124 PetriNetUnfolderBase]: 547/1213 cut-off events. [2024-01-30 14:24:22,705 INFO L125 PetriNetUnfolderBase]: For 213/213 co-relation queries the response was YES. [2024-01-30 14:24:22,707 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2451 conditions, 1213 events. 547/1213 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 8496 event pairs, 314 based on Foata normal form. 0/806 useless extension candidates. Maximal degree in co-relation 1044. Up to 508 conditions per place. [2024-01-30 14:24:22,712 INFO L140 encePairwiseOnDemand]: 77/82 looper letters, 56 selfloop transitions, 5 changer transitions 0/84 dead transitions. [2024-01-30 14:24:22,712 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 77 places, 84 transitions, 346 flow [2024-01-30 14:24:22,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-30 14:24:22,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-30 14:24:22,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 149 transitions. [2024-01-30 14:24:22,714 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6056910569105691 [2024-01-30 14:24:22,714 INFO L175 Difference]: Start difference. First operand has 76 places, 69 transitions, 183 flow. Second operand 3 states and 149 transitions. [2024-01-30 14:24:22,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 77 places, 84 transitions, 346 flow [2024-01-30 14:24:22,715 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 84 transitions, 333 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-30 14:24:22,716 INFO L231 Difference]: Finished difference. Result has 75 places, 68 transitions, 181 flow [2024-01-30 14:24:22,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=82, PETRI_DIFFERENCE_MINUEND_FLOW=171, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=181, PETRI_PLACES=75, PETRI_TRANSITIONS=68} [2024-01-30 14:24:22,717 INFO L281 CegarLoopForPetriNet]: 86 programPoint places, -11 predicate places. [2024-01-30 14:24:22,718 INFO L495 AbstractCegarLoop]: Abstraction has has 75 places, 68 transitions, 181 flow [2024-01-30 14:24:22,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.333333333333336) internal successors, (97), 3 states have internal predecessors, (97), 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 14:24:22,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-30 14:24:22,718 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:22,718 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-01-30 14:24:22,718 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 70 more)] === [2024-01-30 14:24:22,719 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-30 14:24:22,719 INFO L85 PathProgramCache]: Analyzing trace with hash 630696362, now seen corresponding path program 1 times [2024-01-30 14:24:22,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-30 14:24:22,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508952504] [2024-01-30 14:24:22,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-30 14:24:22,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-30 14:24:22,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:24:22,729 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-01-30 14:24:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-01-30 14:24:22,750 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-01-30 14:24:22,751 INFO L360 BasicCegarLoop]: Counterexample is feasible [2024-01-30 14:24:22,752 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONWITNESS_INVARIANT (72 of 73 remaining) [2024-01-30 14:24:22,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (71 of 73 remaining) [2024-01-30 14:24:22,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (70 of 73 remaining) [2024-01-30 14:24:22,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (69 of 73 remaining) [2024-01-30 14:24:22,754 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (68 of 73 remaining) [2024-01-30 14:24:22,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (67 of 73 remaining) [2024-01-30 14:24:22,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (66 of 73 remaining) [2024-01-30 14:24:22,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (65 of 73 remaining) [2024-01-30 14:24:22,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (64 of 73 remaining) [2024-01-30 14:24:22,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (63 of 73 remaining) [2024-01-30 14:24:22,755 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (62 of 73 remaining) [2024-01-30 14:24:22,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (61 of 73 remaining) [2024-01-30 14:24:22,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (60 of 73 remaining) [2024-01-30 14:24:22,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (59 of 73 remaining) [2024-01-30 14:24:22,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (58 of 73 remaining) [2024-01-30 14:24:22,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (57 of 73 remaining) [2024-01-30 14:24:22,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (56 of 73 remaining) [2024-01-30 14:24:22,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (55 of 73 remaining) [2024-01-30 14:24:22,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (54 of 73 remaining) [2024-01-30 14:24:22,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (53 of 73 remaining) [2024-01-30 14:24:22,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (52 of 73 remaining) [2024-01-30 14:24:22,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (51 of 73 remaining) [2024-01-30 14:24:22,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (50 of 73 remaining) [2024-01-30 14:24:22,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (49 of 73 remaining) [2024-01-30 14:24:22,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (48 of 73 remaining) [2024-01-30 14:24:22,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (47 of 73 remaining) [2024-01-30 14:24:22,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (46 of 73 remaining) [2024-01-30 14:24:22,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (45 of 73 remaining) [2024-01-30 14:24:22,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (44 of 73 remaining) [2024-01-30 14:24:22,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (43 of 73 remaining) [2024-01-30 14:24:22,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (42 of 73 remaining) [2024-01-30 14:24:22,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (41 of 73 remaining) [2024-01-30 14:24:22,759 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (40 of 73 remaining) [2024-01-30 14:24:22,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (39 of 73 remaining) [2024-01-30 14:24:22,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (38 of 73 remaining) [2024-01-30 14:24:22,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (37 of 73 remaining) [2024-01-30 14:24:22,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT (36 of 73 remaining) [2024-01-30 14:24:22,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONWITNESS_INVARIANT (35 of 73 remaining) [2024-01-30 14:24:22,760 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONWITNESS_INVARIANT (34 of 73 remaining) [2024-01-30 14:24:22,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONERROR_FUNCTION (33 of 73 remaining) [2024-01-30 14:24:22,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (32 of 73 remaining) [2024-01-30 14:24:22,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (31 of 73 remaining) [2024-01-30 14:24:22,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT (30 of 73 remaining) [2024-01-30 14:24:22,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (29 of 73 remaining) [2024-01-30 14:24:22,761 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (28 of 73 remaining) [2024-01-30 14:24:22,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err3ASSERT_VIOLATIONWITNESS_INVARIANT (27 of 73 remaining) [2024-01-30 14:24:22,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err4ASSERT_VIOLATIONWITNESS_INVARIANT (26 of 73 remaining) [2024-01-30 14:24:22,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err5ASSERT_VIOLATIONWITNESS_INVARIANT (25 of 73 remaining) [2024-01-30 14:24:22,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err6ASSERT_VIOLATIONWITNESS_INVARIANT (24 of 73 remaining) [2024-01-30 14:24:22,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err7ASSERT_VIOLATIONWITNESS_INVARIANT (23 of 73 remaining) [2024-01-30 14:24:22,762 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err8ASSERT_VIOLATIONWITNESS_INVARIANT (22 of 73 remaining) [2024-01-30 14:24:22,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err9ASSERT_VIOLATIONWITNESS_INVARIANT (21 of 73 remaining) [2024-01-30 14:24:22,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (20 of 73 remaining) [2024-01-30 14:24:22,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err11ASSERT_VIOLATIONWITNESS_INVARIANT (19 of 73 remaining) [2024-01-30 14:24:22,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT (18 of 73 remaining) [2024-01-30 14:24:22,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err13ASSERT_VIOLATIONWITNESS_INVARIANT (17 of 73 remaining) [2024-01-30 14:24:22,763 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err14ASSERT_VIOLATIONWITNESS_INVARIANT (16 of 73 remaining) [2024-01-30 14:24:22,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err15ASSERT_VIOLATIONWITNESS_INVARIANT (15 of 73 remaining) [2024-01-30 14:24:22,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err16ASSERT_VIOLATIONWITNESS_INVARIANT (14 of 73 remaining) [2024-01-30 14:24:22,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT (13 of 73 remaining) [2024-01-30 14:24:22,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err1ASSERT_VIOLATIONWITNESS_INVARIANT (12 of 73 remaining) [2024-01-30 14:24:22,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err2ASSERT_VIOLATIONWITNESS_INVARIANT (11 of 73 remaining) [2024-01-30 14:24:22,764 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err3ASSERT_VIOLATIONWITNESS_INVARIANT (10 of 73 remaining) [2024-01-30 14:24:22,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err4ASSERT_VIOLATIONWITNESS_INVARIANT (9 of 73 remaining) [2024-01-30 14:24:22,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err5ASSERT_VIOLATIONWITNESS_INVARIANT (8 of 73 remaining) [2024-01-30 14:24:22,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err6ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 73 remaining) [2024-01-30 14:24:22,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err7ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 73 remaining) [2024-01-30 14:24:22,765 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err8ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 73 remaining) [2024-01-30 14:24:22,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err9ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 73 remaining) [2024-01-30 14:24:22,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err10ASSERT_VIOLATIONWITNESS_INVARIANT (3 of 73 remaining) [2024-01-30 14:24:22,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err11ASSERT_VIOLATIONWITNESS_INVARIANT (2 of 73 remaining) [2024-01-30 14:24:22,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err12ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 73 remaining) [2024-01-30 14:24:22,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread2Err13ASSERT_VIOLATIONWITNESS_INVARIANT (0 of 73 remaining) [2024-01-30 14:24:22,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-01-30 14:24:22,767 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1] [2024-01-30 14:24:22,773 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-01-30 14:24:22,774 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-01-30 14:24:22,792 INFO L503 ceAbstractionStarter]: Automizer considered 39 witness invariants [2024-01-30 14:24:22,792 INFO L504 ceAbstractionStarter]: WitnessConsidered=39 [2024-01-30 14:24:22,793 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.01 02:24:22 BasicIcfg [2024-01-30 14:24:22,793 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-01-30 14:24:22,793 INFO L158 Benchmark]: Toolchain (without parser) took 4018.89ms. Allocated memory was 125.8MB in the beginning and 253.8MB in the end (delta: 127.9MB). Free memory was 50.7MB in the beginning and 202.4MB in the end (delta: -151.7MB). There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:24:22,793 INFO L158 Benchmark]: Witness Parser took 0.19ms. Allocated memory is still 125.8MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:24:22,794 INFO L158 Benchmark]: CDTParser took 1.63ms. Allocated memory is still 125.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-01-30 14:24:22,794 INFO L158 Benchmark]: CACSL2BoogieTranslator took 410.78ms. Allocated memory was 125.8MB in the beginning and 190.8MB in the end (delta: 65.0MB). Free memory was 50.4MB in the beginning and 149.0MB in the end (delta: -98.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-01-30 14:24:22,794 INFO L158 Benchmark]: Boogie Procedure Inliner took 44.61ms. Allocated memory is still 190.8MB. Free memory was 149.0MB in the beginning and 146.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-01-30 14:24:22,794 INFO L158 Benchmark]: Boogie Preprocessor took 67.72ms. Allocated memory is still 190.8MB. Free memory was 146.2MB in the beginning and 144.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-01-30 14:24:22,795 INFO L158 Benchmark]: RCFGBuilder took 773.81ms. Allocated memory is still 190.8MB. Free memory was 144.1MB in the beginning and 160.0MB in the end (delta: -15.8MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. [2024-01-30 14:24:22,795 INFO L158 Benchmark]: TraceAbstraction took 2715.06ms. Allocated memory was 190.8MB in the beginning and 253.8MB in the end (delta: 62.9MB). Free memory was 159.0MB in the beginning and 202.4MB in the end (delta: -43.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. [2024-01-30 14:24:22,796 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 0.19ms. Allocated memory is still 125.8MB. Free memory is still 100.6MB. There was no memory consumed. Max. memory is 16.1GB. * CDTParser took 1.63ms. Allocated memory is still 125.8MB. Free memory is still 95.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 410.78ms. Allocated memory was 125.8MB in the beginning and 190.8MB in the end (delta: 65.0MB). Free memory was 50.4MB in the beginning and 149.0MB in the end (delta: -98.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 44.61ms. Allocated memory is still 190.8MB. Free memory was 149.0MB in the beginning and 146.2MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.72ms. Allocated memory is still 190.8MB. Free memory was 146.2MB in the beginning and 144.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 773.81ms. Allocated memory is still 190.8MB. Free memory was 144.1MB in the beginning and 160.0MB in the end (delta: -15.8MB). Peak memory consumption was 63.4MB. Max. memory is 16.1GB. * TraceAbstraction took 2715.06ms. Allocated memory was 190.8MB in the beginning and 253.8MB in the end (delta: 62.9MB). Free memory was 159.0MB in the beginning and 202.4MB in the end (delta: -43.3MB). Peak memory consumption was 19.6MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 94]: invariant of correctness witness can be violated invariant of correctness witness can be violated We found a FailurePath: [L38] int m1, m2, s, t, x; [L39] _Bool b; [L83] pthread_t t1, t2; VAL [b=0, m1=0, m2=0, s=0, t1={5:0}, t2={3:0}, t=0, x=0] [L86] CodeAnnotStmt[Assertion[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[s],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[t],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L86] m1 = __VERIFIER_nondet_int() [L87] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[m2],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]]]]]] [L87] m2 = __VERIFIER_nondet_int() [L88] 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]]]]]] [L88] s = __VERIFIER_nondet_int() [L89] 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]]]]]] [L89] t = __VERIFIER_nondet_int() [L90] CodeAnnotStmt[Assertion[BinaryExpression[LOGICAND,BinaryExpression[COMPEQ,IdentifierExpression[x],IntegerLiteral[0]],BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]]] [L90] x = __VERIFIER_nondet_int() [L91] CodeAnnotStmt[Assertion[BinaryExpression[COMPEQ,IdentifierExpression[b],CastExpression[ACSLType[_Bool],IntegerLiteral[0]]]]] [L91] b = __VERIFIER_nondet_bool() [L94] 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, s=0, t1={5:0}, t2={3:0}, 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: 86]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 87]: 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: 96]: Unable to prove that invariant of correctness witness holds Unable to prove that invariant of correctness witness holds Reason: Not analyzed. - UnprovableResult [Line: 102]: 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: 96]: 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: 97]: 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 5 procedures, 140 locations, 73 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: 2.6s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 228 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 166 mSDsluCounter, 28 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 11 mSDsCounter, 51 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 598 IncrementalHoareTripleChecker+Invalid, 649 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 51 mSolverCounterUnsat, 17 mSDtfsCounter, 598 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=183occurred in iteration=5, InterpolantAutomatonStates: 19, 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, 0.5s InterpolantComputationTime, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 228 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 14:24:22,828 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