./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-hard1.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/test-hard1.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/test-hard1.wvr.c ./goblint.2023-12-19_14-39-08.files/SV-COMP24_unreach-call/test-hard1.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 14:52:58,851 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 14:52:59,024 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 14:52:59,027 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 14:52:59,028 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 14:52:59,047 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 14:52:59,048 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 14:52:59,048 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 14:52:59,048 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 14:52:59,049 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 14:52:59,049 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 14:52:59,049 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 14:52:59,050 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 14:52:59,050 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 14:52:59,050 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 14:52:59,051 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 14:52:59,051 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 14:52:59,051 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 14:52:59,051 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 14:52:59,052 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 14:52:59,052 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 14:52:59,052 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 14:52:59,053 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 14:52:59,053 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 14:52:59,053 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 14:52:59,054 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 14:52:59,054 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 14:52:59,054 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 14:52:59,054 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 14:52:59,055 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 14:52:59,055 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 14:52:59,055 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 14:52:59,055 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:52:59,056 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 14:52:59,056 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 14:52:59,056 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 14:52:59,056 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 14:52:59,057 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 14:52:59,057 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 14:52:59,057 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 14:52:59,057 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 14:52:59,058 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 14:52:59,058 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 14:52:59,058 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 14:52:59,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 14:52:59,265 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 14:52:59,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 14:52:59,268 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 14:52:59,269 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 14:52:59,270 INFO L431 ainManager$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/test-hard1.wvr.yml/witness.yml [2024-01-27 14:52:59,401 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 14:52:59,401 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 14:52:59,402 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-01-27 14:53:00,458 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 14:53:00,691 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 14:53:00,692 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-01-27 14:53:00,697 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f69f2bd/2077f2018b214f318dbd66e10b2c345b/FLAGfc61c6c6b [2024-01-27 14:53:00,707 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a0f69f2bd/2077f2018b214f318dbd66e10b2c345b [2024-01-27 14:53:00,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 14:53:00,709 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 14:53:00,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 14:53:00,710 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 14:53:00,713 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 14:53:00,716 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:59" (1/2) ... [2024-01-27 14:53:00,717 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a552e92 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:53:00, skipping insertion in model container [2024-01-27 14:53:00,717 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:59" (1/2) ... [2024-01-27 14:53:00,718 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@6b474ca8 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 02:53:00, skipping insertion in model container [2024-01-27 14:53:00,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:53:00" (2/2) ... [2024-01-27 14:53:00,719 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a552e92 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:00, skipping insertion in model container [2024-01-27 14:53:00,719 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 02:53:00" (2/2) ... [2024-01-27 14:53:00,719 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 14:53:00,752 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 14:53:00,753 INFO L98 nessWitnessExtractor]: Loop invariant at [L46-L56] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,754 INFO L98 nessWitnessExtractor]: Loop invariant at [L65-L75] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,754 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,754 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,754 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] n2 <= 2147483646 [2024-01-27 14:53:00,755 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,755 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,755 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L89] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,755 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] 2 <= n2 [2024-01-27 14:53:00,758 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] n2 != 0 [2024-01-27 14:53:00,758 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,758 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L108] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,759 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,759 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,759 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] m == 0U [2024-01-27 14:53:00,759 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,759 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] n2 != 0 [2024-01-27 14:53:00,759 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,759 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] 1 <= n2 [2024-01-27 14:53:00,760 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] n1 <= 2147483645 [2024-01-27 14:53:00,760 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,760 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,760 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,760 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,761 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,761 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] m == 0U [2024-01-27 14:53:00,761 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] n2 == 0 [2024-01-27 14:53:00,761 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,761 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,761 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,762 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L70] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,762 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,762 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] n1 <= 2147483646 [2024-01-27 14:53:00,762 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] p1 == 0U [2024-01-27 14:53:00,763 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] p2 == 0U [2024-01-27 14:53:00,763 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] n1 == 0 [2024-01-27 14:53:00,763 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] m == 0U [2024-01-27 14:53:00,763 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] n2 == 0 [2024-01-27 14:53:00,764 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,764 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,765 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,765 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] n1 != 0 [2024-01-27 14:53:00,765 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] 2 <= n1 [2024-01-27 14:53:00,765 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] n2 != 0 [2024-01-27 14:53:00,765 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] 1 <= n2 [2024-01-27 14:53:00,765 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,766 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,766 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,766 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] 2 <= n2 [2024-01-27 14:53:00,766 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] n2 != 0 [2024-01-27 14:53:00,766 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,766 INFO L98 nessWitnessExtractor]: Location invariant before [L109-L109] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,767 INFO L98 nessWitnessExtractor]: Location invariant before [L109-L109] n2 <= 2147483645 [2024-01-27 14:53:00,767 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] 1 <= n1 [2024-01-27 14:53:00,767 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,767 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] n1 != 0 [2024-01-27 14:53:00,768 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] p2 == 0U [2024-01-27 14:53:00,768 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] n1 == 0 [2024-01-27 14:53:00,768 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] m == 0U [2024-01-27 14:53:00,768 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] n2 == 0 [2024-01-27 14:53:00,769 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,769 INFO L98 nessWitnessExtractor]: Loop invariant at [L84-L94] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,769 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Location invariant before [L125-L125] m == 0U [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Location invariant before [L110-L110] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Location invariant before [L124-L124] m == 0U [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Location invariant before [L124-L124] n2 == 0 [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Loop invariant at [L103-L113] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,770 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] 1 <= n1 [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] n1 != 0 [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] 2 <= n1 [2024-01-27 14:53:00,771 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] n1 != 0 [2024-01-27 14:53:00,772 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,772 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,772 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,772 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,772 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,772 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L51] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,772 INFO L98 nessWitnessExtractor]: Location invariant before [L123-L123] m == 0U [2024-01-27 14:53:00,773 INFO L98 nessWitnessExtractor]: Location invariant before [L123-L123] n1 == 0 [2024-01-27 14:53:00,773 INFO L98 nessWitnessExtractor]: Location invariant before [L123-L123] n2 == 0 [2024-01-27 14:53:00,773 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,773 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 14:53:00,794 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 14:53:00,921 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/test-hard1.wvr.c[3425,3438] [2024-01-27 14:53:00,931 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:53:00,940 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 14:53:00,955 WARN L424 MainDispatcher]: Unable to annotate extern int pthread_create (pthread_t *__restrict __newthread, const pthread_attr_t *__restrict __attr, void *(*__start_routine) (void *), void *__restrict __arg) __attribute__ ((__nothrow__)) __attribute__ ((__nonnull__ (1, 3))); with a witness entry Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local 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 14:53:01,022 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/test-hard1.wvr.c[3425,3438] [2024-01-27 14:53:01,024 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 14:53:01,034 INFO L206 MainTranslator]: Completed translation [2024-01-27 14:53:01,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01 WrapperNode [2024-01-27 14:53:01,035 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 14:53:01,036 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 14:53:01,036 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 14:53:01,036 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 14:53:01,041 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,049 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,064 INFO L138 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112 [2024-01-27 14:53:01,065 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 14:53:01,065 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 14:53:01,065 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 14:53:01,065 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 14:53:01,074 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,077 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,089 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 14:53:01,098 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,099 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,108 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,121 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,124 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,129 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,131 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 14:53:01,134 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 14:53:01,135 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 14:53:01,135 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 14:53:01,135 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (1/1) ... [2024-01-27 14:53:01,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 14:53:01,145 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 14:53:01,157 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 14:53:01,175 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 14:53:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 14:53:01,191 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 14:53:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 14:53:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 14:53:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 14:53:01,192 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 14:53:01,192 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 14:53:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 14:53:01,193 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 14:53:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 14:53:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 14:53:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 14:53:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 14:53:01,193 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 14:53:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 14:53:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 14:53:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 14:53:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 14:53:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 14:53:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 14:53:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 14:53:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 14:53:01,195 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 14:53:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 14:53:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 14:53:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 14:53:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 14:53:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 14:53:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 14:53:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 14:53:01,198 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 14:53:01,308 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 14:53:01,310 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 14:53:01,806 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 14:53:01,806 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 14:53:02,059 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 14:53:02,059 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-27 14:53:02,059 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:53:02 BoogieIcfgContainer [2024-01-27 14:53:02,060 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 14:53:02,061 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 14:53:02,061 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 14:53:02,064 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 14:53:02,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 02:52:59" (1/4) ... [2024-01-27 14:53:02,064 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d0109c and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 02:53:02, skipping insertion in model container [2024-01-27 14:53:02,064 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 02:53:00" (2/4) ... [2024-01-27 14:53:02,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d0109c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:53:02, skipping insertion in model container [2024-01-27 14:53:02,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 02:53:01" (3/4) ... [2024-01-27 14:53:02,065 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71d0109c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 02:53:02, skipping insertion in model container [2024-01-27 14:53:02,065 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 02:53:02" (4/4) ... [2024-01-27 14:53:02,066 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2024-01-27 14:53:02,079 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 14:53:02,080 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 93 error locations. [2024-01-27 14:53:02,080 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 14:53:02,178 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-27 14:53:02,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 179 transitions, 386 flow [2024-01-27 14:53:02,274 INFO L124 PetriNetUnfolderBase]: 4/175 cut-off events. [2024-01-27 14:53:02,274 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 14:53:02,278 INFO L83 FinitePrefix]: Finished finitePrefix Result has 192 conditions, 175 events. 4/175 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 738 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 139. Up to 2 conditions per place. [2024-01-27 14:53:02,279 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 179 transitions, 386 flow [2024-01-27 14:53:02,283 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 174 transitions, 372 flow [2024-01-27 14:53:02,317 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 14:53:02,322 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;@7853a30c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 14:53:02,323 INFO L358 AbstractCegarLoop]: Starting to check reachability of 174 error locations. [2024-01-27 14:53:02,325 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 14:53:02,325 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 14:53:02,325 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 14:53:02,325 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:02,326 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 14:53:02,326 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 171 more)] === [2024-01-27 14:53:02,330 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:02,330 INFO L85 PathProgramCache]: Analyzing trace with hash 25984, now seen corresponding path program 1 times [2024-01-27 14:53:02,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:02,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180445864] [2024-01-27 14:53:02,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:02,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:02,464 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 14:53:02,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:02,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180445864] [2024-01-27 14:53:02,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180445864] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:02,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:02,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:53:02,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2098502439] [2024-01-27 14:53:02,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:02,474 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:02,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:02,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:02,504 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:02,520 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 179 [2024-01-27 14:53:02,524 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 174 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 14:53:02,524 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:02,525 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 179 [2024-01-27 14:53:02,526 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:11,979 INFO L124 PetriNetUnfolderBase]: 74377/108689 cut-off events. [2024-01-27 14:53:11,979 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2024-01-27 14:53:12,333 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210037 conditions, 108689 events. 74377/108689 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 6822. Compared 1003975 event pairs, 73557 based on Foata normal form. 0/62255 useless extension candidates. Maximal degree in co-relation 192878. Up to 98002 conditions per place. [2024-01-27 14:53:13,045 INFO L140 encePairwiseOnDemand]: 137/179 looper letters, 60 selfloop transitions, 2 changer transitions 0/134 dead transitions. [2024-01-27 14:53:13,046 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 134 transitions, 416 flow [2024-01-27 14:53:13,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:13,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:13,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 330 transitions. [2024-01-27 14:53:13,063 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6145251396648045 [2024-01-27 14:53:13,064 INFO L175 Difference]: Start difference. First operand has 183 places, 174 transitions, 372 flow. Second operand 3 states and 330 transitions. [2024-01-27 14:53:13,065 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 134 transitions, 416 flow [2024-01-27 14:53:13,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 134 transitions, 400 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-27 14:53:13,602 INFO L231 Difference]: Finished difference. Result has 137 places, 134 transitions, 280 flow [2024-01-27 14:53:13,604 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=132, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=137, PETRI_TRANSITIONS=134} [2024-01-27 14:53:13,607 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, -46 predicate places. [2024-01-27 14:53:13,607 INFO L495 AbstractCegarLoop]: Abstraction has has 137 places, 134 transitions, 280 flow [2024-01-27 14:53:13,607 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.66666666666667) internal successors, (230), 3 states have internal predecessors, (230), 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 14:53:13,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:13,608 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 14:53:13,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 14:53:13,608 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 171 more)] === [2024-01-27 14:53:13,610 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:13,610 INFO L85 PathProgramCache]: Analyzing trace with hash 806310, now seen corresponding path program 1 times [2024-01-27 14:53:13,610 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:13,611 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883991250] [2024-01-27 14:53:13,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:13,611 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:13,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:13,734 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 14:53:13,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:13,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883991250] [2024-01-27 14:53:13,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1883991250] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:13,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:13,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:53:13,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081988158] [2024-01-27 14:53:13,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:13,737 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:13,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:13,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:13,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:13,756 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 179 [2024-01-27 14:53:13,757 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 134 transitions, 280 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 14:53:13,757 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:13,757 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 179 [2024-01-27 14:53:13,758 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:21,750 INFO L124 PetriNetUnfolderBase]: 81468/119088 cut-off events. [2024-01-27 14:53:21,750 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-01-27 14:53:22,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227542 conditions, 119088 events. 81468/119088 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 7239. Compared 1105313 event pairs, 80557 based on Foata normal form. 3/69135 useless extension candidates. Maximal degree in co-relation 227511. Up to 107223 conditions per place. [2024-01-27 14:53:22,998 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 57 selfloop transitions, 2 changer transitions 0/129 dead transitions. [2024-01-27 14:53:22,998 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 129 transitions, 388 flow [2024-01-27 14:53:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:22,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:22,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2024-01-27 14:53:23,000 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5549348230912476 [2024-01-27 14:53:23,000 INFO L175 Difference]: Start difference. First operand has 137 places, 134 transitions, 280 flow. Second operand 3 states and 298 transitions. [2024-01-27 14:53:23,000 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 129 transitions, 388 flow [2024-01-27 14:53:23,001 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 132 places, 129 transitions, 384 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:23,002 INFO L231 Difference]: Finished difference. Result has 132 places, 129 transitions, 270 flow [2024-01-27 14:53:23,003 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=266, PETRI_DIFFERENCE_MINUEND_PLACES=130, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=129, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=270, PETRI_PLACES=132, PETRI_TRANSITIONS=129} [2024-01-27 14:53:23,003 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, -51 predicate places. [2024-01-27 14:53:23,003 INFO L495 AbstractCegarLoop]: Abstraction has has 132 places, 129 transitions, 270 flow [2024-01-27 14:53:23,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 14:53:23,004 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:23,004 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 14:53:23,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 14:53:23,004 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 171 more)] === [2024-01-27 14:53:23,005 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:23,005 INFO L85 PathProgramCache]: Analyzing trace with hash 24996520, now seen corresponding path program 1 times [2024-01-27 14:53:23,005 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:23,005 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015859041] [2024-01-27 14:53:23,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:23,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:23,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:23,047 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 14:53:23,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:23,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015859041] [2024-01-27 14:53:23,049 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015859041] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:23,049 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:23,049 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:53:23,049 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1706431493] [2024-01-27 14:53:23,049 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:23,050 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:23,050 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:23,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:23,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:23,057 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 179 [2024-01-27 14:53:23,058 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 132 places, 129 transitions, 270 flow. Second operand has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 14:53:23,060 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:23,060 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 179 [2024-01-27 14:53:23,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 14:53:30,712 INFO L124 PetriNetUnfolderBase]: 74377/108681 cut-off events. [2024-01-27 14:53:30,713 INFO L125 PetriNetUnfolderBase]: For 271/271 co-relation queries the response was YES. [2024-01-27 14:53:30,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207805 conditions, 108681 events. 74377/108681 cut-off events. For 271/271 co-relation queries the response was YES. Maximal size of possible extension queue 6824. Compared 1003144 event pairs, 73557 based on Foata normal form. 0/62252 useless extension candidates. Maximal degree in co-relation 207772. Up to 98003 conditions per place. [2024-01-27 14:53:31,592 INFO L140 encePairwiseOnDemand]: 174/179 looper letters, 59 selfloop transitions, 2 changer transitions 0/126 dead transitions. [2024-01-27 14:53:31,593 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 126 transitions, 386 flow [2024-01-27 14:53:31,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 14:53:31,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 14:53:31,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2024-01-27 14:53:31,594 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5549348230912476 [2024-01-27 14:53:31,595 INFO L175 Difference]: Start difference. First operand has 132 places, 129 transitions, 270 flow. Second operand 3 states and 298 transitions. [2024-01-27 14:53:31,595 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 126 transitions, 386 flow [2024-01-27 14:53:31,596 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 129 places, 126 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 14:53:31,597 INFO L231 Difference]: Finished difference. Result has 129 places, 126 transitions, 264 flow [2024-01-27 14:53:31,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=264, PETRI_PLACES=129, PETRI_TRANSITIONS=126} [2024-01-27 14:53:31,598 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, -54 predicate places. [2024-01-27 14:53:31,598 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 126 transitions, 264 flow [2024-01-27 14:53:31,598 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 78.66666666666667) internal successors, (236), 3 states have internal predecessors, (236), 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 14:53:31,598 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 14:53:31,599 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 14:53:31,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 14:53:31,599 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT === [thread1Err0ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err1ASSERT_VIOLATIONWITNESS_INVARIANT, thread1Err2ASSERT_VIOLATIONWITNESS_INVARIANT (and 171 more)] === [2024-01-27 14:53:31,599 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 14:53:31,599 INFO L85 PathProgramCache]: Analyzing trace with hash 774892899, now seen corresponding path program 1 times [2024-01-27 14:53:31,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 14:53:31,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152011305] [2024-01-27 14:53:31,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 14:53:31,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 14:53:31,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 14:53:31,639 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 14:53:31,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 14:53:31,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152011305] [2024-01-27 14:53:31,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152011305] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 14:53:31,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 14:53:31,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 14:53:31,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568531579] [2024-01-27 14:53:31,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 14:53:31,640 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 14:53:31,640 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 14:53:31,641 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 14:53:31,641 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 14:53:31,645 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 179 [2024-01-27 14:53:31,645 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 126 transitions, 264 flow. Second operand has 3 states, 3 states have (on average 82.66666666666667) internal successors, (248), 3 states have internal predecessors, (248), 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 14:53:31,645 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 14:53:31,645 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 179 [2024-01-27 14:53:31,645 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand