./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --validate ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8857f20b Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReachWitnessValidation.xml -i ../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --traceabstraction.compute.hoare.annotation.of.negated.interpolant.automaton,.abstraction.and.cfg false --witnessparser.only.consider.loop.invariants false --- Real Ultimate output --- This is Ultimate 0.2.4-dev-8857f20-m [2024-01-29 22:56:08,587 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-29 22:56:08,677 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-29 22:56:08,681 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-29 22:56:08,682 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-29 22:56:08,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-29 22:56:08,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-29 22:56:08,713 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-29 22:56:08,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-29 22:56:08,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-29 22:56:08,716 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-29 22:56:08,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-29 22:56:08,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-29 22:56:08,717 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-29 22:56:08,717 INFO L153 SettingsManager]: * Use SBE=true [2024-01-29 22:56:08,718 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-29 22:56:08,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-29 22:56:08,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-29 22:56:08,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-29 22:56:08,719 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-29 22:56:08,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-29 22:56:08,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-29 22:56:08,720 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-29 22:56:08,720 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-29 22:56:08,720 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-29 22:56:08,721 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-29 22:56:08,721 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-29 22:56:08,721 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-29 22:56:08,722 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-29 22:56:08,722 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-29 22:56:08,723 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-29 22:56:08,723 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-29 22:56:08,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:56:08,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-29 22:56:08,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-29 22:56:08,725 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-29 22:56:08,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-29 22:56:08,725 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-29 22:56:08,725 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-29 22:56:08,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-29 22:56:08,726 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-29 22:56:08,726 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-29 22:56:08,727 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-29 22:56:08,727 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-29 22:56:08,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-29 22:56:09,013 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-29 22:56:09,016 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-29 22:56:09,017 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-29 22:56:09,017 INFO L274 PluginConnector]: CDTParser initialized [2024-01-29 22:56:09,018 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-29 22:56:10,200 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-29 22:56:10,408 INFO L384 CDTParser]: Found 1 translation units. [2024-01-29 22:56:10,408 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c [2024-01-29 22:56:10,416 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60349f4a2/fa52b3eba9b24ba2b42febd35afec3e5/FLAGe8bddb761 [2024-01-29 22:56:10,430 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/60349f4a2/fa52b3eba9b24ba2b42febd35afec3e5 [2024-01-29 22:56:10,433 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-29 22:56:10,436 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-29 22:56:10,437 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/bench-exp2x9.wvr.yml/witness.yml [2024-01-29 22:56:10,631 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-29 22:56:10,633 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-29 22:56:10,641 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-29 22:56:10,641 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-29 22:56:10,645 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-29 22:56:10,646 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:56:10" (1/2) ... [2024-01-29 22:56:10,647 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ea721a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:56:10, skipping insertion in model container [2024-01-29 22:56:10,647 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.01 10:56:10" (1/2) ... [2024-01-29 22:56:10,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1ef805df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.01 10:56:10, skipping insertion in model container [2024-01-29 22:56:10,649 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:56:10" (2/2) ... [2024-01-29 22:56:10,649 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67ea721a and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10, skipping insertion in model container [2024-01-29 22:56:10,650 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:56:10" (2/2) ... [2024-01-29 22:56:10,650 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-29 22:56:10,674 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-29 22:56:10,675 INFO L98 nessWitnessExtractor]: Loop invariant at [L38-L46] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,675 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,676 INFO L98 nessWitnessExtractor]: Location invariant before [L84-L84] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,676 INFO L98 nessWitnessExtractor]: Location invariant before [L57-L57] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,676 INFO L98 nessWitnessExtractor]: Location invariant before [L56-L56] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,676 INFO L98 nessWitnessExtractor]: Location invariant before [L40-L40] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,676 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,676 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,677 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,677 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (x4 == 0U) && (n == 0U) [2024-01-29 22:56:10,677 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] x4 == 0U [2024-01-29 22:56:10,677 INFO L98 nessWitnessExtractor]: Location invariant before [L39-L39] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,677 INFO L98 nessWitnessExtractor]: Loop invariant at [L52-L60] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,677 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,678 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,678 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L48] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,678 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,678 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL)) && (x3 == 0U) [2024-01-29 22:56:10,678 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] ((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL) [2024-01-29 22:56:10,678 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] ((((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL)) && (x3 == 0U)) && (x4 == 0U) [2024-01-29 22:56:10,678 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL)) && (x1 == 0U) [2024-01-29 22:56:10,679 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] ((((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL)) && (x3 == 0U)) && (n == 0U) [2024-01-29 22:56:10,679 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL) [2024-01-29 22:56:10,679 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] ((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL) [2024-01-29 22:56:10,679 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (((((0LL - (long long )x1) + (long long )x3 >= 0LL) && ((long long )x1 + (long long )x3 >= 0LL)) && ((0LL - (long long )x1) - (long long )x3 >= 0LL)) && ((long long )x1 - (long long )x3 >= 0LL)) && (x2 == 0U) [2024-01-29 22:56:10,679 INFO L98 nessWitnessExtractor]: Location invariant before [L97-L97] (0LL - (long long )x1) + (long long )x3 >= 0LL [2024-01-29 22:56:10,679 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,680 INFO L98 nessWitnessExtractor]: Location invariant before [L41-L41] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,680 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,680 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] n == 0U [2024-01-29 22:56:10,680 INFO L98 nessWitnessExtractor]: Location invariant before [L59-L59] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,680 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,680 INFO L98 nessWitnessExtractor]: Loop invariant at [L80-L88] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,680 INFO L98 nessWitnessExtractor]: Location invariant before [L76-L76] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,681 INFO L98 nessWitnessExtractor]: Location invariant before [L70-L70] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,681 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,681 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] (x2 == 0U) && (x3 == 0U) [2024-01-29 22:56:10,681 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] ((x2 == 0U) && (x3 == 0U)) && (n == 0U) [2024-01-29 22:56:10,681 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] ((x2 == 0U) && (x3 == 0U)) && (x4 == 0U) [2024-01-29 22:56:10,681 INFO L98 nessWitnessExtractor]: Location invariant before [L98-L98] x2 == 0U [2024-01-29 22:56:10,682 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L86] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,682 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L67] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,682 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,682 INFO L98 nessWitnessExtractor]: Location invariant before [L42-L42] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,682 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,682 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (n == 0U) && ((unsigned long )_argptr == 0UL) [2024-01-29 22:56:10,682 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] n == 0U [2024-01-29 22:56:10,683 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] x3 == 0U [2024-01-29 22:56:10,683 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (x3 == 0U) && (x4 == 0U) [2024-01-29 22:56:10,683 INFO L98 nessWitnessExtractor]: Location invariant before [L99-L99] (x3 == 0U) && (n == 0U) [2024-01-29 22:56:10,683 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,683 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,683 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,684 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,684 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,684 INFO L98 nessWitnessExtractor]: Loop invariant at [L66-L74] (unsigned long )_argptr == 0UL [2024-01-29 22:56:10,704 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-29 22:56:10,867 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-29 22:56:10,872 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:56:10,883 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-01-29 22:56:10,972 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/bench-exp2x9.wvr.c[2721,2734] [2024-01-29 22:56:10,973 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-29 22:56:10,986 INFO L206 MainTranslator]: Completed translation [2024-01-29 22:56:10,986 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10 WrapperNode [2024-01-29 22:56:10,986 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-29 22:56:10,987 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-29 22:56:10,987 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-29 22:56:10,988 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-29 22:56:10,994 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,006 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,059 INFO L138 Inliner]: procedures = 20, calls = 32, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 114 [2024-01-29 22:56:11,062 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-29 22:56:11,062 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-29 22:56:11,063 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-29 22:56:11,063 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-29 22:56:11,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,073 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,094 INFO L175 MemorySlicer]: Split 10 memory accesses to 5 slices as follows [2, 2, 2, 2, 2]. 20 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0]. The 4 writes are split as follows [0, 1, 1, 1, 1]. [2024-01-29 22:56:11,095 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,095 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,105 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,111 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,121 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,132 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,136 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-29 22:56:11,137 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-29 22:56:11,137 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-29 22:56:11,137 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-29 22:56:11,141 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (1/1) ... [2024-01-29 22:56:11,147 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-29 22:56:11,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-29 22:56:11,174 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-01-29 22:56:11,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-01-29 22:56:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-29 22:56:11,215 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-29 22:56:11,215 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-29 22:56:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-29 22:56:11,216 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-29 22:56:11,216 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-29 22:56:11,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-29 22:56:11,217 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-29 22:56:11,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-29 22:56:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-29 22:56:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-29 22:56:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-29 22:56:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-29 22:56:11,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-29 22:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-29 22:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-29 22:56:11,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-29 22:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-29 22:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-29 22:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-29 22:56:11,220 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-29 22:56:11,221 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-29 22:56:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-29 22:56:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-29 22:56:11,221 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-29 22:56:11,222 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-29 22:56:11,223 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-29 22:56:11,223 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-29 22:56:11,225 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-01-29 22:56:11,344 INFO L244 CfgBuilder]: Building ICFG [2024-01-29 22:56:11,347 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-29 22:56:11,853 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-29 22:56:11,854 INFO L293 CfgBuilder]: Performing block encoding [2024-01-29 22:56:12,007 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-29 22:56:12,007 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-29 22:56:12,009 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:56:12 BoogieIcfgContainer [2024-01-29 22:56:12,010 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-29 22:56:12,013 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-29 22:56:12,014 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-29 22:56:12,017 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-29 22:56:12,017 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.01 10:56:10" (1/4) ... [2024-01-29 22:56:12,018 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300a36bb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 10:56:12, skipping insertion in model container [2024-01-29 22:56:12,018 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 29.01 10:56:10" (2/4) ... [2024-01-29 22:56:12,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300a36bb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:56:12, skipping insertion in model container [2024-01-29 22:56:12,019 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 29.01 10:56:10" (3/4) ... [2024-01-29 22:56:12,019 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@300a36bb and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 29.01 10:56:12, skipping insertion in model container [2024-01-29 22:56:12,020 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 10:56:12" (4/4) ... [2024-01-29 22:56:12,021 INFO L112 eAbstractionObserver]: Analyzing ICFG bench-exp2x9.wvr.c [2024-01-29 22:56:12,041 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-29 22:56:12,041 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 61 error locations. [2024-01-29 22:56:12,042 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-29 22:56:12,171 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-29 22:56:12,219 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 22:56:12,289 INFO L124 PetriNetUnfolderBase]: 4/151 cut-off events. [2024-01-29 22:56:12,289 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-29 22:56:12,298 INFO L83 FinitePrefix]: Finished finitePrefix Result has 168 conditions, 151 events. 4/151 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 496 event pairs, 0 based on Foata normal form. 0/86 useless extension candidates. Maximal degree in co-relation 122. Up to 2 conditions per place. [2024-01-29 22:56:12,298 INFO L82 GeneralOperation]: Start removeDead. Operand has 164 places, 155 transitions, 338 flow [2024-01-29 22:56:12,304 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 150 transitions, 324 flow [2024-01-29 22:56:12,313 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-29 22:56:12,319 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;@36bb710c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-29 22:56:12,319 INFO L358 AbstractCegarLoop]: Starting to check reachability of 106 error locations. [2024-01-29 22:56:12,321 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-29 22:56:12,321 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-29 22:56:12,322 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-29 22:56:12,322 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:56:12,322 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-29 22:56:12,323 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-29 22:56:12,328 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:56:12,328 INFO L85 PathProgramCache]: Analyzing trace with hash 16538, now seen corresponding path program 1 times [2024-01-29 22:56:12,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:56:12,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467409570] [2024-01-29 22:56:12,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:56:12,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:56:12,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:56:12,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:56:12,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:56:12,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467409570] [2024-01-29 22:56:12,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467409570] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:56:12,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:56:12,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:56:12,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873908943] [2024-01-29 22:56:12,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:56:12,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:56:12,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:56:12,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:56:12,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:56:12,742 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 89 out of 155 [2024-01-29 22:56:12,749 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 150 transitions, 324 flow. Second operand has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:56:12,749 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:56:12,749 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 89 of 155 [2024-01-29 22:56:12,750 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:56:25,852 INFO L124 PetriNetUnfolderBase]: 92052/155596 cut-off events. [2024-01-29 22:56:25,852 INFO L125 PetriNetUnfolderBase]: For 4187/4187 co-relation queries the response was YES. [2024-01-29 22:56:26,228 INFO L83 FinitePrefix]: Finished finitePrefix Result has 275363 conditions, 155596 events. 92052/155596 cut-off events. For 4187/4187 co-relation queries the response was YES. Maximal size of possible extension queue 6014. Compared 1580503 event pairs, 73557 based on Foata normal form. 5/147224 useless extension candidates. Maximal degree in co-relation 253303. Up to 116428 conditions per place. [2024-01-29 22:56:27,303 INFO L140 encePairwiseOnDemand]: 147/155 looper letters, 57 selfloop transitions, 2 changer transitions 0/144 dead transitions. [2024-01-29 22:56:27,303 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 155 places, 144 transitions, 430 flow [2024-01-29 22:56:27,305 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:56:27,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:56:27,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 332 transitions. [2024-01-29 22:56:27,316 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7139784946236559 [2024-01-29 22:56:27,318 INFO L175 Difference]: Start difference. First operand has 159 places, 150 transitions, 324 flow. Second operand 3 states and 332 transitions. [2024-01-29 22:56:27,318 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 155 places, 144 transitions, 430 flow [2024-01-29 22:56:27,441 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 144 transitions, 414 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-29 22:56:27,446 INFO L231 Difference]: Finished difference. Result has 147 places, 144 transitions, 300 flow [2024-01-29 22:56:27,448 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=300, PETRI_PLACES=147, PETRI_TRANSITIONS=144} [2024-01-29 22:56:27,452 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -12 predicate places. [2024-01-29 22:56:27,452 INFO L495 AbstractCegarLoop]: Abstraction has has 147 places, 144 transitions, 300 flow [2024-01-29 22:56:27,452 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 89.66666666666667) internal successors, (269), 3 states have internal predecessors, (269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:56:27,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:56:27,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-29 22:56:27,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-29 22:56:27,453 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-29 22:56:27,455 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:56:27,456 INFO L85 PathProgramCache]: Analyzing trace with hash 513226, now seen corresponding path program 1 times [2024-01-29 22:56:27,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:56:27,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847765515] [2024-01-29 22:56:27,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:56:27,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:56:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:56:27,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:56:27,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:56:27,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847765515] [2024-01-29 22:56:27,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847765515] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:56:27,671 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:56:27,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-29 22:56:27,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495215352] [2024-01-29 22:56:27,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:56:27,672 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-29 22:56:27,673 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:56:27,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-29 22:56:27,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-29 22:56:27,749 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 155 [2024-01-29 22:56:27,750 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:56:27,751 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:56:27,751 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 155 [2024-01-29 22:56:27,751 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:56:38,473 INFO L124 PetriNetUnfolderBase]: 92052/155595 cut-off events. [2024-01-29 22:56:38,473 INFO L125 PetriNetUnfolderBase]: For 1008/1008 co-relation queries the response was YES. [2024-01-29 22:56:38,760 INFO L83 FinitePrefix]: Finished finitePrefix Result has 273141 conditions, 155595 events. 92052/155595 cut-off events. For 1008/1008 co-relation queries the response was YES. Maximal size of possible extension queue 6014. Compared 1581129 event pairs, 73557 based on Foata normal form. 1/147220 useless extension candidates. Maximal degree in co-relation 273122. Up to 116430 conditions per place. [2024-01-29 22:56:39,636 INFO L140 encePairwiseOnDemand]: 152/155 looper letters, 59 selfloop transitions, 2 changer transitions 0/143 dead transitions. [2024-01-29 22:56:39,636 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 143 transitions, 420 flow [2024-01-29 22:56:39,637 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-29 22:56:39,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-29 22:56:39,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 320 transitions. [2024-01-29 22:56:39,644 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6881720430107527 [2024-01-29 22:56:39,644 INFO L175 Difference]: Start difference. First operand has 147 places, 144 transitions, 300 flow. Second operand 3 states and 320 transitions. [2024-01-29 22:56:39,644 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 143 transitions, 420 flow [2024-01-29 22:56:39,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 143 transitions, 416 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-29 22:56:39,647 INFO L231 Difference]: Finished difference. Result has 146 places, 143 transitions, 298 flow [2024-01-29 22:56:39,647 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=155, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=144, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=298, PETRI_PLACES=146, PETRI_TRANSITIONS=143} [2024-01-29 22:56:39,648 INFO L281 CegarLoopForPetriNet]: 159 programPoint places, -13 predicate places. [2024-01-29 22:56:39,648 INFO L495 AbstractCegarLoop]: Abstraction has has 146 places, 143 transitions, 298 flow [2024-01-29 22:56:39,648 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.66666666666667) internal successors, (260), 3 states have internal predecessors, (260), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:56:39,649 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-29 22:56:39,649 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-01-29 22:56:39,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-29 22:56:39,649 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err10ASSERT_VIOLATIONWITNESS_INVARIANT (and 103 more)] === [2024-01-29 22:56:39,650 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-29 22:56:39,650 INFO L85 PathProgramCache]: Analyzing trace with hash -1889797921, now seen corresponding path program 1 times [2024-01-29 22:56:39,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-29 22:56:39,650 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308696714] [2024-01-29 22:56:39,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-29 22:56:39,651 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-29 22:56:39,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-29 22:56:39,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-01-29 22:56:39,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-29 22:56:39,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308696714] [2024-01-29 22:56:39,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308696714] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-29 22:56:39,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-29 22:56:39,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-01-29 22:56:39,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127345930] [2024-01-29 22:56:39,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-29 22:56:39,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-01-29 22:56:39,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-29 22:56:39,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-01-29 22:56:39,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-01-29 22:56:39,926 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 155 [2024-01-29 22:56:39,926 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 143 transitions, 298 flow. Second operand has 5 states, 5 states have (on average 70.2) internal successors, (351), 5 states have internal predecessors, (351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-01-29 22:56:39,927 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-29 22:56:39,927 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 155 [2024-01-29 22:56:39,927 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-29 22:56:53,317 INFO L124 PetriNetUnfolderBase]: 142422/223099 cut-off events. [2024-01-29 22:56:53,317 INFO L125 PetriNetUnfolderBase]: For 1335/1335 co-relation queries the response was YES. [2024-01-29 22:56:53,665 INFO L83 FinitePrefix]: Finished finitePrefix Result has 405104 conditions, 223099 events. 142422/223099 cut-off events. For 1335/1335 co-relation queries the response was YES. Maximal size of possible extension queue 7846. Compared 2090932 event pairs, 116597 based on Foata normal form. 0/187277 useless extension candidates. Maximal degree in co-relation 405078. Up to 180385 conditions per place.