./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 cb09d658 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-cb09d65-m [2024-01-27 23:10:50,543 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-01-27 23:10:50,609 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-01-27 23:10:50,631 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-01-27 23:10:50,632 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-01-27 23:10:50,654 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-01-27 23:10:50,655 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-01-27 23:10:50,655 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-01-27 23:10:50,656 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-01-27 23:10:50,659 INFO L153 SettingsManager]: * Use memory slicer=true [2024-01-27 23:10:50,659 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-01-27 23:10:50,659 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-01-27 23:10:50,660 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-01-27 23:10:50,661 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-01-27 23:10:50,661 INFO L153 SettingsManager]: * Use SBE=true [2024-01-27 23:10:50,661 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-01-27 23:10:50,662 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-01-27 23:10:50,662 INFO L153 SettingsManager]: * sizeof long=4 [2024-01-27 23:10:50,662 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-01-27 23:10:50,662 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-01-27 23:10:50,662 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-01-27 23:10:50,663 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-01-27 23:10:50,663 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-01-27 23:10:50,663 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-01-27 23:10:50,663 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-01-27 23:10:50,664 INFO L153 SettingsManager]: * sizeof long double=12 [2024-01-27 23:10:50,664 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-01-27 23:10:50,664 INFO L153 SettingsManager]: * Use constant arrays=true [2024-01-27 23:10:50,664 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-01-27 23:10:50,665 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-01-27 23:10:50,665 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-01-27 23:10:50,666 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-01-27 23:10:50,666 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:10:50,666 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-01-27 23:10:50,666 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-01-27 23:10:50,666 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-01-27 23:10:50,667 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-01-27 23:10:50,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-01-27 23:10:50,667 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-01-27 23:10:50,667 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-01-27 23:10:50,667 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-01-27 23:10:50,668 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-01-27 23:10:50,668 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-01-27 23:10:50,668 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false [2024-01-27 23:10:50,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-01-27 23:10:50,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-01-27 23:10:50,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-01-27 23:10:50,882 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-01-27 23:10:50,883 INFO L274 PluginConnector]: Witness Parser initialized [2024-01-27 23:10:50,884 INFO L431 ainManager$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 23:10:50,973 INFO L270 PluginConnector]: Initializing CDTParser... [2024-01-27 23:10:50,974 INFO L274 PluginConnector]: CDTParser initialized [2024-01-27 23:10:50,974 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-01-27 23:10:52,110 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-01-27 23:10:52,266 INFO L384 CDTParser]: Found 1 translation units. [2024-01-27 23:10:52,267 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-hard1.wvr.c [2024-01-27 23:10:52,272 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb467b6d/edea49b624e34a4faf4d0e42626eb55f/FLAGfe4e4d6df [2024-01-27 23:10:52,283 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bb467b6d/edea49b624e34a4faf4d0e42626eb55f [2024-01-27 23:10:52,284 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-01-27 23:10:52,285 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-01-27 23:10:52,287 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-01-27 23:10:52,288 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-01-27 23:10:52,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-01-27 23:10:52,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:10:50" (1/2) ... [2024-01-27 23:10:52,293 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470ca5f4 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:10:52, skipping insertion in model container [2024-01-27 23:10:52,293 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:10:50" (1/2) ... [2024-01-27 23:10:52,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@64c801f1 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 27.01 11:10:52, skipping insertion in model container [2024-01-27 23:10:52,295 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:10:52" (2/2) ... [2024-01-27 23:10:52,295 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@470ca5f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52, skipping insertion in model container [2024-01-27 23:10:52,295 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 11:10:52" (2/2) ... [2024-01-27 23:10:52,295 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-01-27 23:10:52,325 INFO L96 nessWitnessExtractor]: Found the following entries in the witness: [2024-01-27 23:10:52,326 INFO L98 nessWitnessExtractor]: Loop invariant at [L65-L75] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,326 INFO L98 nessWitnessExtractor]: Location invariant before [L111-L111] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L96-L96] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L44-L44] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L58-L58] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L112-L112] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] n1 != 0 [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L69-L69] 2 <= n1 [2024-01-27 23:10:52,327 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] n1 <= 2147483645 [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L71-L71] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L62-L62] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] 2 <= n1 [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] n1 != 0 [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L68-L68] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L91-L91] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L54-L54] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,328 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Location invariant before [L90-L90] n2 <= 2147483646 [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Location invariant before [L55-L55] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Location invariant before [L82-L82] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Loop invariant at [L103-L113] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Location invariant before [L74-L74] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Location invariant before [L125-L125] m == 0U [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] m == 0U [2024-01-27 23:10:52,329 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] p2 == 0U [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] n1 == 0 [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L122-L122] n2 == 0 [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L100-L100] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L67-L70] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] 1 <= n2 [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L87-L87] n2 != 0 [2024-01-27 23:10:52,330 INFO L98 nessWitnessExtractor]: Location invariant before [L86-L89] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,331 INFO L98 nessWitnessExtractor]: Location invariant before [L72-L72] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,331 INFO L98 nessWitnessExtractor]: Location invariant before [L101-L101] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,331 INFO L98 nessWitnessExtractor]: Location invariant before [L48-L51] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,331 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] n1 <= 2147483646 [2024-01-27 23:10:52,331 INFO L98 nessWitnessExtractor]: Location invariant before [L52-L52] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,331 INFO L98 nessWitnessExtractor]: Location invariant before [L45-L45] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,331 INFO L98 nessWitnessExtractor]: Loop invariant at [L84-L94] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L47-L47] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L102-L102] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] 2 <= n2 [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] n2 != 0 [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L106-L106] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L124-L124] n2 == 0 [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L124-L124] m == 0U [2024-01-27 23:10:52,332 INFO L98 nessWitnessExtractor]: Location invariant before [L81-L81] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L73-L73] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L77-L77] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L53-L53] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] 1 <= n1 [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L50-L50] n1 != 0 [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] m == 0U [2024-01-27 23:10:52,333 INFO L98 nessWitnessExtractor]: Location invariant before [L43-L43] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] n1 == 0 [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] p2 == 0U [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] m == 0U [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] n2 == 0 [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L121-L121] p1 == 0U [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L123-L123] n1 == 0 [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L123-L123] m == 0U [2024-01-27 23:10:52,334 INFO L98 nessWitnessExtractor]: Location invariant before [L123-L123] n2 == 0 [2024-01-27 23:10:52,335 INFO L98 nessWitnessExtractor]: Location invariant before [L83-L83] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,335 INFO L98 nessWitnessExtractor]: Location invariant before [L110-L110] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,335 INFO L98 nessWitnessExtractor]: Location invariant before [L115-L115] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,335 INFO L98 nessWitnessExtractor]: Location invariant before [L63-L63] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,335 INFO L98 nessWitnessExtractor]: Location invariant before [L92-L92] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,335 INFO L98 nessWitnessExtractor]: Location invariant before [L105-L108] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,335 INFO L98 nessWitnessExtractor]: Location invariant before [L85-L85] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L93-L93] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] 1 <= n2 [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L88-L88] n2 != 0 [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L64-L64] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] m == 0U [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L22-L25] n2 == 0 [2024-01-27 23:10:52,336 INFO L98 nessWitnessExtractor]: Location invariant before [L104-L104] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L66-L66] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] 2 <= n2 [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L107-L107] n2 != 0 [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L109-L109] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L109-L109] n2 <= 2147483645 [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] 1 <= n1 [2024-01-27 23:10:52,337 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] n1 != 0 [2024-01-27 23:10:52,338 INFO L98 nessWitnessExtractor]: Location invariant before [L49-L49] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,338 INFO L98 nessWitnessExtractor]: Loop invariant at [L46-L56] (unsigned long )_argptr == 0UL [2024-01-27 23:10:52,355 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-01-27 23:10:52,513 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 23:10:52,525 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:10:52,532 INFO L202 MainTranslator]: Completed pre-run [2024-01-27 23:10:52,540 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 23:10:52,615 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 23:10:52,623 INFO L209 PostProcessor]: Analyzing one entry point: main [2024-01-27 23:10:52,635 INFO L206 MainTranslator]: Completed translation [2024-01-27 23:10:52,635 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52 WrapperNode [2024-01-27 23:10:52,636 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-01-27 23:10:52,636 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-01-27 23:10:52,636 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-01-27 23:10:52,637 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-01-27 23:10:52,642 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,649 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,664 INFO L138 Inliner]: procedures = 24, calls = 56, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 112 [2024-01-27 23:10:52,666 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-01-27 23:10:52,666 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-01-27 23:10:52,680 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-01-27 23:10:52,680 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-01-27 23:10:52,689 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,690 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,692 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,704 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 23:10:52,705 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,705 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,728 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,733 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,734 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,747 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-01-27 23:10:52,748 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-01-27 23:10:52,748 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-01-27 23:10:52,748 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-01-27 23:10:52,749 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (1/1) ... [2024-01-27 23:10:52,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-01-27 23:10:52,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-01-27 23:10:52,772 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 23:10:52,789 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 23:10:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-01-27 23:10:52,804 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-01-27 23:10:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-01-27 23:10:52,805 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-01-27 23:10:52,805 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-01-27 23:10:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-01-27 23:10:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-01-27 23:10:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-01-27 23:10:52,806 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-01-27 23:10:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-01-27 23:10:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-01-27 23:10:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-01-27 23:10:52,806 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-01-27 23:10:52,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-01-27 23:10:52,807 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-01-27 23:10:52,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-01-27 23:10:52,807 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-01-27 23:10:52,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-01-27 23:10:52,808 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-01-27 23:10:52,809 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-01-27 23:10:52,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-01-27 23:10:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-01-27 23:10:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-01-27 23:10:52,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-01-27 23:10:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-01-27 23:10:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-01-27 23:10:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-01-27 23:10:52,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-01-27 23:10:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-01-27 23:10:52,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-01-27 23:10:52,812 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 23:10:52,918 INFO L244 CfgBuilder]: Building ICFG [2024-01-27 23:10:52,921 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-01-27 23:10:53,355 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-01-27 23:10:53,355 INFO L293 CfgBuilder]: Performing block encoding [2024-01-27 23:10:53,560 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-01-27 23:10:53,560 INFO L320 CfgBuilder]: Removed 4 assume(true) statements. [2024-01-27 23:10:53,561 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:10:53 BoogieIcfgContainer [2024-01-27 23:10:53,561 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-01-27 23:10:53,562 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-01-27 23:10:53,563 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-01-27 23:10:53,565 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-01-27 23:10:53,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 27.01 11:10:50" (1/4) ... [2024-01-27 23:10:53,565 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9547 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 27.01 11:10:53, skipping insertion in model container [2024-01-27 23:10:53,565 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 11:10:52" (2/4) ... [2024-01-27 23:10:53,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:10:53, skipping insertion in model container [2024-01-27 23:10:53,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 11:10:52" (3/4) ... [2024-01-27 23:10:53,566 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 11:10:53, skipping insertion in model container [2024-01-27 23:10:53,566 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 11:10:53" (4/4) ... [2024-01-27 23:10:53,567 INFO L112 eAbstractionObserver]: Analyzing ICFG test-hard1.wvr.c [2024-01-27 23:10:53,579 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-01-27 23:10:53,580 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 93 error locations. [2024-01-27 23:10:53,580 INFO L518 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-01-27 23:10:53,646 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-01-27 23:10:53,670 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 179 transitions, 386 flow [2024-01-27 23:10:53,709 INFO L124 PetriNetUnfolderBase]: 4/175 cut-off events. [2024-01-27 23:10:53,709 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-01-27 23:10:53,715 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 23:10:53,715 INFO L82 GeneralOperation]: Start removeDead. Operand has 188 places, 179 transitions, 386 flow [2024-01-27 23:10:53,719 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 183 places, 174 transitions, 372 flow [2024-01-27 23:10:53,726 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-01-27 23:10:53,730 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;@6da7ffc4, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-01-27 23:10:53,730 INFO L358 AbstractCegarLoop]: Starting to check reachability of 174 error locations. [2024-01-27 23:10:53,732 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-01-27 23:10:53,732 INFO L124 PetriNetUnfolderBase]: 0/1 cut-off events. [2024-01-27 23:10:53,732 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-01-27 23:10:53,733 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:10:53,733 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1] [2024-01-27 23:10:53,733 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 23:10:53,737 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:10:53,737 INFO L85 PathProgramCache]: Analyzing trace with hash 25984, now seen corresponding path program 1 times [2024-01-27 23:10:53,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:10:53,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [378997952] [2024-01-27 23:10:53,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:10:53,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:10:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:10:53,917 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 23:10:53,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:10:53,918 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [378997952] [2024-01-27 23:10:53,918 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [378997952] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:10:53,918 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:10:53,918 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:10:53,919 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460521818] [2024-01-27 23:10:53,920 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:10:53,926 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:10:53,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:10:53,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:10:53,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:10:53,960 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 83 out of 179 [2024-01-27 23:10:53,963 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 183 places, 174 transitions, 372 flow. Second operand has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 23:10:53,963 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:10:53,963 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 83 of 179 [2024-01-27 23:10:53,964 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:11:02,749 INFO L124 PetriNetUnfolderBase]: 74377/108692 cut-off events. [2024-01-27 23:11:02,749 INFO L125 PetriNetUnfolderBase]: For 1944/1944 co-relation queries the response was YES. [2024-01-27 23:11:03,143 INFO L83 FinitePrefix]: Finished finitePrefix Result has 210036 conditions, 108692 events. 74377/108692 cut-off events. For 1944/1944 co-relation queries the response was YES. Maximal size of possible extension queue 6822. Compared 1004185 event pairs, 73557 based on Foata normal form. 1/62256 useless extension candidates. Maximal degree in co-relation 192878. Up to 98005 conditions per place. [2024-01-27 23:11:03,896 INFO L140 encePairwiseOnDemand]: 140/179 looper letters, 56 selfloop transitions, 2 changer transitions 0/137 dead transitions. [2024-01-27 23:11:03,896 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 137 transitions, 414 flow [2024-01-27 23:11:03,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:11:03,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:11:03,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 344 transitions. [2024-01-27 23:11:03,907 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6405959031657356 [2024-01-27 23:11:03,909 INFO L175 Difference]: Start difference. First operand has 183 places, 174 transitions, 372 flow. Second operand 3 states and 344 transitions. [2024-01-27 23:11:03,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 137 transitions, 414 flow [2024-01-27 23:11:05,345 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 140 places, 137 transitions, 398 flow, removed 0 selfloop flow, removed 8 redundant places. [2024-01-27 23:11:05,348 INFO L231 Difference]: Finished difference. Result has 140 places, 137 transitions, 286 flow [2024-01-27 23:11:05,350 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=282, PETRI_DIFFERENCE_MINUEND_PLACES=138, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=286, PETRI_PLACES=140, PETRI_TRANSITIONS=137} [2024-01-27 23:11:05,352 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, -43 predicate places. [2024-01-27 23:11:05,353 INFO L495 AbstractCegarLoop]: Abstraction has has 140 places, 137 transitions, 286 flow [2024-01-27 23:11:05,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.66666666666667) internal successors, (251), 3 states have internal predecessors, (251), 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 23:11:05,353 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:11:05,353 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1] [2024-01-27 23:11:05,354 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-01-27 23:11:05,354 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 23:11:05,355 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:11:05,355 INFO L85 PathProgramCache]: Analyzing trace with hash 806310, now seen corresponding path program 1 times [2024-01-27 23:11:05,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:11:05,356 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172101093] [2024-01-27 23:11:05,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:11:05,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:11:05,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:11:05,403 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 23:11:05,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:11:05,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172101093] [2024-01-27 23:11:05,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172101093] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:11:05,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:11:05,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:11:05,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291461826] [2024-01-27 23:11:05,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:11:05,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:11:05,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:11:05,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:11:05,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:11:05,418 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 179 [2024-01-27 23:11:05,419 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 137 transitions, 286 flow. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 23:11:05,419 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:11:05,419 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 179 [2024-01-27 23:11:05,419 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:11:12,749 INFO L124 PetriNetUnfolderBase]: 74377/108688 cut-off events. [2024-01-27 23:11:12,749 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-01-27 23:11:12,990 INFO L83 FinitePrefix]: Finished finitePrefix Result has 207812 conditions, 108688 events. 74377/108688 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 6822. Compared 1004213 event pairs, 73557 based on Foata normal form. 0/62254 useless extension candidates. Maximal degree in co-relation 207795. Up to 98002 conditions per place. [2024-01-27 23:11:13,547 INFO L140 encePairwiseOnDemand]: 173/179 looper letters, 59 selfloop transitions, 2 changer transitions 0/133 dead transitions. [2024-01-27 23:11:13,548 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 138 places, 133 transitions, 400 flow [2024-01-27 23:11:13,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:11:13,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:11:13,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 296 transitions. [2024-01-27 23:11:13,550 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5512104283054003 [2024-01-27 23:11:13,550 INFO L175 Difference]: Start difference. First operand has 140 places, 137 transitions, 286 flow. Second operand 3 states and 296 transitions. [2024-01-27 23:11:13,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 138 places, 133 transitions, 400 flow [2024-01-27 23:11:13,551 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 133 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:11:13,553 INFO L231 Difference]: Finished difference. Result has 136 places, 133 transitions, 278 flow [2024-01-27 23:11:13,554 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=274, PETRI_DIFFERENCE_MINUEND_PLACES=134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=133, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=278, PETRI_PLACES=136, PETRI_TRANSITIONS=133} [2024-01-27 23:11:13,554 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, -47 predicate places. [2024-01-27 23:11:13,555 INFO L495 AbstractCegarLoop]: Abstraction has has 136 places, 133 transitions, 278 flow [2024-01-27 23:11:13,555 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 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 23:11:13,555 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:11:13,555 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2024-01-27 23:11:13,555 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-01-27 23:11:13,556 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 23:11:13,559 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:11:13,559 INFO L85 PathProgramCache]: Analyzing trace with hash 24996520, now seen corresponding path program 1 times [2024-01-27 23:11:13,559 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:11:13,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1854280551] [2024-01-27 23:11:13,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:11:13,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:11:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:11:13,648 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 23:11:13,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:11:13,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1854280551] [2024-01-27 23:11:13,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1854280551] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:11:13,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:11:13,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:11:13,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616868889] [2024-01-27 23:11:13,650 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:11:13,650 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:11:13,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:11:13,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:11:13,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:11:13,665 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 179 [2024-01-27 23:11:13,665 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 133 transitions, 278 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 23:11:13,668 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:11:13,669 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 179 [2024-01-27 23:11:13,669 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-01-27 23:11:21,442 INFO L124 PetriNetUnfolderBase]: 81468/119087 cut-off events. [2024-01-27 23:11:21,444 INFO L125 PetriNetUnfolderBase]: For 272/272 co-relation queries the response was YES. [2024-01-27 23:11:21,743 INFO L83 FinitePrefix]: Finished finitePrefix Result has 227541 conditions, 119087 events. 81468/119087 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 7426. Compared 1107841 event pairs, 80557 based on Foata normal form. 3/69134 useless extension candidates. Maximal degree in co-relation 227511. Up to 107223 conditions per place. [2024-01-27 23:11:22,534 INFO L140 encePairwiseOnDemand]: 172/179 looper letters, 57 selfloop transitions, 2 changer transitions 0/128 dead transitions. [2024-01-27 23:11:22,534 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 128 transitions, 386 flow [2024-01-27 23:11:22,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-01-27 23:11:22,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-01-27 23:11:22,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 298 transitions. [2024-01-27 23:11:22,536 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5549348230912476 [2024-01-27 23:11:22,536 INFO L175 Difference]: Start difference. First operand has 136 places, 133 transitions, 278 flow. Second operand 3 states and 298 transitions. [2024-01-27 23:11:22,536 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 128 transitions, 386 flow [2024-01-27 23:11:22,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 131 places, 128 transitions, 382 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-01-27 23:11:22,538 INFO L231 Difference]: Finished difference. Result has 131 places, 128 transitions, 268 flow [2024-01-27 23:11:22,539 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=179, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=128, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=126, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=268, PETRI_PLACES=131, PETRI_TRANSITIONS=128} [2024-01-27 23:11:22,542 INFO L281 CegarLoopForPetriNet]: 183 programPoint places, -52 predicate places. [2024-01-27 23:11:22,542 INFO L495 AbstractCegarLoop]: Abstraction has has 131 places, 128 transitions, 268 flow [2024-01-27 23:11:22,542 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 23:11:22,542 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-01-27 23:11:22,543 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-01-27 23:11:22,543 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-01-27 23:11:22,543 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 23:11:22,543 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-01-27 23:11:22,543 INFO L85 PathProgramCache]: Analyzing trace with hash 774892899, now seen corresponding path program 1 times [2024-01-27 23:11:22,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-01-27 23:11:22,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610894194] [2024-01-27 23:11:22,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-01-27 23:11:22,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-01-27 23:11:22,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-01-27 23:11:22,624 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 23:11:22,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-01-27 23:11:22,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610894194] [2024-01-27 23:11:22,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610894194] provided 1 perfect and 0 imperfect interpolant sequences [2024-01-27 23:11:22,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-01-27 23:11:22,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-01-27 23:11:22,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [8298723] [2024-01-27 23:11:22,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-01-27 23:11:22,626 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-01-27 23:11:22,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-01-27 23:11:22,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-01-27 23:11:22,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-01-27 23:11:22,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 82 out of 179 [2024-01-27 23:11:22,635 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 128 transitions, 268 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 23:11:22,635 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-01-27 23:11:22,635 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 82 of 179 [2024-01-27 23:11:22,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand