./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a340643f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a340643-m [2024-01-27 14:52:48,703 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:52:48,910 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:52:48,914 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:52:48,914 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:52:48,943 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:52:48,944 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:52:48,945 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:52:48,945 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:52:48,948 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:52:48,948 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:52:48,949 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:52:48,949 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:52:48,950 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:52:48,951 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:52:48,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:52:48,951 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:52:48,951 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:52:48,951 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:52:48,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:52:48,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:52:48,952 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:52:48,952 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:52:48,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:52:48,953 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:52:48,953 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:52:48,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:52:48,953 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:52:48,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:52:48,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:52:48,955 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:52:48,955 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:52:48,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:52:48,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:52:48,956 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:52:48,956 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:52:48,956 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:52:48,956 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:52:48,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:52:48,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:52:48,957 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:52:48,957 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:52:48,957 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:52:48,957 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:52:49,183 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:52:49,204 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:52:49,206 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:52:49,207 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:52:49,208 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:52:49,209 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/spaghetti.wvr.yml/witness.yml [2024-01-27 14:52:49,436 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:52:49,437 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:52:49,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-27 14:52:50,448 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:52:50,595 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:52:50,595 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c [2024-01-27 14:52:50,602 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca9a0400/5f3668db274d4b7fa5bafceab1089c71/FLAG2f6f3579a [2024-01-27 14:52:50,613 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1ca9a0400/5f3668db274d4b7fa5bafceab1089c71 [2024-01-27 14:52:50,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:52:50,614 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:52:50,617 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:52:50,617 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:52:50,635 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:52:50,635 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:49" (1/2) ... [2024-01-27 14:52:50,636 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ab6559 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:52:50, skipping insertion in model container [2024-01-27 14:52:50,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:49" (1/2) ... [2024-01-27 14:52:50,637 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@5b8d03ac and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:52:50, skipping insertion in model container [2024-01-27 14:52:50,637 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:52:50" (2/2) ... [2024-01-27 14:52:50,638 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37ab6559 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50, skipping insertion in model container [2024-01-27 14:52:50,638 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:52:50" (2/2) ... [2024-01-27 14:52:50,638 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:52:50,653 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:52:50,654 INFO L98 nessWitnessExtractor]: Location invariant before [L46-L46] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,654 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,654 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] x_0 == 0U [2024-01-27 14:52:50,654 INFO L98 nessWitnessExtractor]: Location invariant before [L114-L114] x_1 == 0U [2024-01-27 14:52:50,654 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,654 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,654 INFO L98 nessWitnessExtractor]: Location invariant after [L18-L19] val == (_Bool)0 || val == (_Bool)1 [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L79-L79] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] x_0 == 0U [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,655 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] x_1 % 2U == 0U [2024-01-27 14:52:50,656 INFO L98 nessWitnessExtractor]: Loop invariant at [L42-L52] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,656 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,656 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,656 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] x_0 % 2U == 0U [2024-01-27 14:52:50,656 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,656 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,656 INFO L98 nessWitnessExtractor]: Loop invariant at [L61-L68] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,657 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,658 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] x_0 == 0U [2024-01-27 14:52:50,658 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,658 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,674 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] x_0 % 2U == 0U [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L51-L51] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L78-L78] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] x_1 == 0U [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,675 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] x_1 == 0U [2024-01-27 14:52:50,676 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,676 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x_1 % 2U == 0U [2024-01-27 14:52:50,676 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,676 INFO L98 nessWitnessExtractor]: Location invariant before [L89-L89] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,676 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,676 INFO L98 nessWitnessExtractor]: Location invariant before [L80-L80] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,676 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] x_1 == 0U [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Loop invariant at [L77-L87] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,677 INFO L98 nessWitnessExtractor]: Loop invariant at [L96-L103] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,678 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,678 INFO L98 nessWitnessExtractor]: Location invariant before [L65-L65] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,678 INFO L98 nessWitnessExtractor]: Location invariant before [L108-L108] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,678 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L105] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,678 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-27 14:52:50,693 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:52:50,864 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3273,3286] [2024-01-27 14:52:50,874 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:52:50,896 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:52:50,908 WARN L424 MainDispatcher]: Unable to annotate __assert_fail(const char *__assertion, const char *__file, unsigned int __line, const char *__function) with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-27 14:52:50,985 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/spaghetti.wvr.c[3273,3286] [2024-01-27 14:52:50,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:52:50,996 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:52:50,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50 WrapperNode [2024-01-27 14:52:50,996 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:52:50,997 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:52:50,997 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:52:50,997 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:52:51,002 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,009 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,021 INFO L138 Inliner]: procedures = 23, calls = 59, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 82 [2024-01-27 14:52:51,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:52:51,022 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:52:51,022 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:52:51,022 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:52:51,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,031 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,033 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,058 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-27 14:52:51,058 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,058 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,068 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,072 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,078 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,089 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,091 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:52:51,092 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:52:51,092 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:52:51,092 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:52:51,093 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (1/1) ... [2024-01-27 14:52:51,097 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:52:51,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:52:51,142 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) [2024-01-27 14:52:51,156 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 [2024-01-27 14:52:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:52:51,199 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:52:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:52:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 14:52:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 14:52:51,200 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:52:51,200 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:52:51,201 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:52:51,201 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:52:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:52:51,202 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:52:51,203 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-27 14:52:51,281 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:52:51,283 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:52:51,680 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:52:51,680 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:52:51,908 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:52:51,908 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-27 14:52:51,910 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:52:51 BoogieIcfgContainer [2024-01-27 14:52:51,910 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:52:51,913 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:52:51,914 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:52:51,916 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:52:51,917 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:49" (1/4) ... [2024-01-27 14:52:51,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efe7f93 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:52:51, skipping insertion in model container [2024-01-27 14:52:51,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:52:50" (2/4) ... [2024-01-27 14:52:51,918 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efe7f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:52:51, skipping insertion in model container [2024-01-27 14:52:51,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:52:50" (3/4) ... [2024-01-27 14:52:51,920 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@efe7f93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:52:51, skipping insertion in model container [2024-01-27 14:52:51,920 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:52:51" (4/4) ... [2024-01-27 14:52:51,921 INFO L112 eAbstractionObserver]: Analyzing ICFG spaghetti.wvr.c [2024-01-27 14:52:51,937 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:52:51,938 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 66 error locations. [2024-01-27 14:52:51,938 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:52:52,027 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-27 14:52:52,064 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 156 places, 151 transitions, 330 flow [2024-01-27 14:52:52,149 INFO L124 PetriNetUnfolderBase]: 8/147 cut-off events. [2024-01-27 14:52:52,150 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 14:52:52,155 INFO L83 FinitePrefix]: Finished finitePrefix Result has 164 conditions, 147 events. 8/147 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 17. Compared 682 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 135. Up to 2 conditions per place. [2024-01-27 14:52:52,155 INFO L82 GeneralOperation]: Start removeDead. Operand has 156 places, 151 transitions, 330 flow [2024-01-27 14:52:52,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 146 transitions, 316 flow [2024-01-27 14:52:52,172 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:52:52,180 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;@2ba4aef4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:52:52,181 INFO L358 AbstractCegarLoop]: Starting to check reachability of 132 error locations. [2024-01-27 14:52:52,183 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:52:52,183 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:52:52,183 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:52:52,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:52:52,184 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:52:52,184 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-27 14:52:52,188 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:52:52,189 INFO L85 PathProgramCache]: Analyzing trace with hash 18469, now seen corresponding path program 1 times [2024-01-27 14:52:52,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:52:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [947906337] [2024-01-27 14:52:52,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:52:52,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:52:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:52:52,430 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:52:52,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:52:52,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [947906337] [2024-01-27 14:52:52,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [947906337] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:52:52,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:52:52,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:52:52,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716088662] [2024-01-27 14:52:52,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:52:52,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:52:52,447 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:52:52,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:52:52,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:52:52,478 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 63 out of 151 [2024-01-27 14:52:52,480 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 146 transitions, 316 flow. Second operand has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:52:52,480 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:52:52,481 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 63 of 151 [2024-01-27 14:52:52,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:04,267 INFO L124 PetriNetUnfolderBase]: 120256/179565 cut-off events. [2024-01-27 14:53:04,267 INFO L125 PetriNetUnfolderBase]: For 3081/3081 co-relation queries the response was YES. [2024-01-27 14:53:04,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 342726 conditions, 179565 events. 120256/179565 cut-off events. For 3081/3081 co-relation queries the response was YES. Maximal size of possible extension queue 9953. Compared 1704726 event pairs, 82159 based on Foata normal form. 11773/117429 useless extension candidates. Maximal degree in co-relation 318750. Up to 113379 conditions per place. [2024-01-27 14:53:05,756 INFO L140 encePairwiseOnDemand]: 117/151 looper letters, 99 selfloop transitions, 6 changer transitions 0/164 dead transitions. [2024-01-27 14:53:05,756 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 164 transitions, 571 flow [2024-01-27 14:53:05,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:05,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:05,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 348 transitions. [2024-01-27 14:53:05,768 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7682119205298014 [2024-01-27 14:53:05,770 INFO L175 Difference]: Start difference. First operand has 151 places, 146 transitions, 316 flow. Second operand 3 states and 348 transitions. [2024-01-27 14:53:05,771 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 164 transitions, 571 flow [2024-01-27 14:53:06,680 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 164 transitions, 549 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-27 14:53:06,684 INFO L231 Difference]: Finished difference. Result has 123 places, 122 transitions, 284 flow [2024-01-27 14:53:06,686 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=244, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=118, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=284, PETRI_PLACES=123, PETRI_TRANSITIONS=122} [2024-01-27 14:53:06,688 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -28 predicate places. [2024-01-27 14:53:06,689 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 122 transitions, 284 flow [2024-01-27 14:53:06,689 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.666666666666664) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:53:06,689 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:06,689 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:53:06,690 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:53:06,690 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-27 14:53:06,690 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:06,690 INFO L85 PathProgramCache]: Analyzing trace with hash 573137, now seen corresponding path program 1 times [2024-01-27 14:53:06,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:06,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060778134] [2024-01-27 14:53:06,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:06,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:06,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:06,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:06,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:06,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060778134] [2024-01-27 14:53:06,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060778134] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:06,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:06,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:53:06,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157731144] [2024-01-27 14:53:06,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:06,760 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:06,760 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:06,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:06,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:06,762 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 64 out of 151 [2024-01-27 14:53:06,763 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 122 transitions, 284 flow. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:53:06,763 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:06,763 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 64 of 151 [2024-01-27 14:53:06,763 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:19,021 INFO L124 PetriNetUnfolderBase]: 135904/205474 cut-off events. [2024-01-27 14:53:19,022 INFO L125 PetriNetUnfolderBase]: For 29581/29581 co-relation queries the response was YES. [2024-01-27 14:53:19,503 INFO L83 FinitePrefix]: Finished finitePrefix Result has 409329 conditions, 205474 events. 135904/205474 cut-off events. For 29581/29581 co-relation queries the response was YES. Maximal size of possible extension queue 10821. Compared 2007898 event pairs, 84971 based on Foata normal form. 0/138121 useless extension candidates. Maximal degree in co-relation 237935. Up to 118928 conditions per place. [2024-01-27 14:53:20,921 INFO L140 encePairwiseOnDemand]: 144/151 looper letters, 107 selfloop transitions, 6 changer transitions 0/171 dead transitions. [2024-01-27 14:53:20,921 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 124 places, 171 transitions, 635 flow [2024-01-27 14:53:20,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:20,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:20,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2024-01-27 14:53:20,927 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6578366445916115 [2024-01-27 14:53:20,927 INFO L175 Difference]: Start difference. First operand has 123 places, 122 transitions, 284 flow. Second operand 3 states and 298 transitions. [2024-01-27 14:53:20,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 124 places, 171 transitions, 635 flow [2024-01-27 14:53:21,131 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 122 places, 171 transitions, 615 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:21,135 INFO L231 Difference]: Finished difference. Result has 124 places, 125 transitions, 310 flow [2024-01-27 14:53:21,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=270, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=310, PETRI_PLACES=124, PETRI_TRANSITIONS=125} [2024-01-27 14:53:21,136 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -27 predicate places. [2024-01-27 14:53:21,136 INFO L495 AbstractCegarLoop]: Abstraction has has 124 places, 125 transitions, 310 flow [2024-01-27 14:53:21,136 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:53:21,136 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:21,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:53:21,137 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:53:21,137 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-27 14:53:21,137 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:21,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1041809568, now seen corresponding path program 1 times [2024-01-27 14:53:21,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:21,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852411873] [2024-01-27 14:53:21,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:21,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:21,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:21,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:21,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:21,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852411873] [2024-01-27 14:53:21,235 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852411873] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:21,235 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:21,235 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:21,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651225856] [2024-01-27 14:53:21,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:21,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:21,236 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:21,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:21,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:21,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 57 out of 151 [2024-01-27 14:53:21,257 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 125 transitions, 310 flow. Second operand has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:53:21,257 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:21,258 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 57 of 151 [2024-01-27 14:53:21,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:30,669 INFO L124 PetriNetUnfolderBase]: 102036/159141 cut-off events. [2024-01-27 14:53:30,670 INFO L125 PetriNetUnfolderBase]: For 35654/35654 co-relation queries the response was YES. [2024-01-27 14:53:31,139 INFO L83 FinitePrefix]: Finished finitePrefix Result has 324724 conditions, 159141 events. 102036/159141 cut-off events. For 35654/35654 co-relation queries the response was YES. Maximal size of possible extension queue 7758. Compared 1576994 event pairs, 9307 based on Foata normal form. 32030/163226 useless extension candidates. Maximal degree in co-relation 164643. Up to 123264 conditions per place. [2024-01-27 14:53:31,850 INFO L140 encePairwiseOnDemand]: 138/151 looper letters, 102 selfloop transitions, 2 changer transitions 0/154 dead transitions. [2024-01-27 14:53:31,851 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 154 transitions, 599 flow [2024-01-27 14:53:31,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-01-27 14:53:31,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-01-27 14:53:31,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 331 transitions. [2024-01-27 14:53:31,852 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5480132450331126 [2024-01-27 14:53:31,853 INFO L175 Difference]: Start difference. First operand has 124 places, 125 transitions, 310 flow. Second operand 4 states and 331 transitions. [2024-01-27 14:53:31,853 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 154 transitions, 599 flow [2024-01-27 14:53:35,265 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 154 transitions, 585 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:35,269 INFO L231 Difference]: Finished difference. Result has 114 places, 114 transitions, 280 flow [2024-01-27 14:53:35,269 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=151, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=280, PETRI_PLACES=114, PETRI_TRANSITIONS=114} [2024-01-27 14:53:35,271 INFO L281 CegarLoopForPetriNet]: 151 programPoint places, -37 predicate places. [2024-01-27 14:53:35,271 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 114 transitions, 280 flow [2024-01-27 14:53:35,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 58.5) internal successors, (234), 4 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:53:35,271 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:35,272 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-01-27 14:53:35,272 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:53:35,272 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err12ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT (and 129 more)] === [2024-01-27 14:53:35,272 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:35,273 INFO L85 PathProgramCache]: Analyzing trace with hash 449881118, now seen corresponding path program 1 times [2024-01-27 14:53:35,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:35,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [150573337] [2024-01-27 14:53:35,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:35,276 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:35,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:35,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-27 14:53:35,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:35,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [150573337] [2024-01-27 14:53:35,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [150573337] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:35,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:35,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-27 14:53:35,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239895446] [2024-01-27 14:53:35,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:35,365 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-01-27 14:53:35,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:35,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-01-27 14:53:35,366 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-01-27 14:53:35,382 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 151 [2024-01-27 14:53:35,383 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 114 transitions, 280 flow. Second operand has 4 states, 4 states have (on average 60.0) internal successors, (240), 4 states have internal predecessors, (240), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-27 14:53:35,383 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:35,383 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 151 [2024-01-27 14:53:35,383 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand