./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c --full-output --witness-type correctness_witness --witnessparser.only.consider.loop.invariants false --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --validate ./goblint.2024-05-21_14-57-05.files/mutex-meet/test-easy10.wvr.yml/witness.yml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 76401ed0 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-easy10.wvr.c ./goblint.2024-05-21_14-57-05.files/mutex-meet/test-easy10.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 --cacsl2boogietranslator.check.unreachability.of.reach_error.function false --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-76401ed-m [2024-06-20 18:15:17,463 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:15:17,539 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:15:17,544 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:15:17,544 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:15:17,569 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:15:17,570 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:15:17,570 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:15:17,571 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:15:17,574 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:15:17,574 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:15:17,574 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:15:17,575 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:15:17,576 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:15:17,576 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:15:17,577 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:15:17,577 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:15:17,577 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:15:17,577 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:15:17,577 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:15:17,577 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:15:17,578 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:15:17,578 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:15:17,578 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:15:17,578 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:15:17,578 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:15:17,578 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:15:17,579 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:15:17,579 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:15:17,579 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:15:17,580 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:15:17,580 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:15:17,580 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:15:17,580 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:15:17,581 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:15:17,581 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:15:17,581 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:15:17,581 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:15:17,581 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:15:17,581 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:15:17,581 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:15:17,582 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:15:17,582 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:15:17,582 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:15:17,739 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:15:17,754 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:15:17,756 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:15:17,757 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:15:17,757 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:15:17,758 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/test-easy10.wvr.c [2024-06-20 18:15:18,854 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:15:19,019 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:15:19,020 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/test-easy10.wvr.c [2024-06-20 18:15:19,030 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f08484df/1bdda99195e64774811995f51f79785c/FLAGc5e597088 [2024-06-20 18:15:19,044 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2f08484df/1bdda99195e64774811995f51f79785c [2024-06-20 18:15:19,046 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:15:19,047 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:15:19,048 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/test-easy10.wvr.yml/witness.yml [2024-06-20 18:15:19,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:15:19,125 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:15:19,126 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:15:19,126 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:15:19,129 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:15:19,130 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:15:19" (1/2) ... [2024-06-20 18:15:19,131 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f46258f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:15:19, skipping insertion in model container [2024-06-20 18:15:19,131 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:15:19" (1/2) ... [2024-06-20 18:15:19,133 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@654fe55d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:15:19, skipping insertion in model container [2024-06-20 18:15:19,133 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:15:19" (2/2) ... [2024-06-20 18:15:19,134 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f46258f and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19, skipping insertion in model container [2024-06-20 18:15:19,134 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:15:19" (2/2) ... [2024-06-20 18:15:19,134 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:15:19,150 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:15:19,151 INFO L97 edCorrectnessWitness]: Location invariant before [L144-L144] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-20 18:15:19,152 INFO L97 edCorrectnessWitness]: Location invariant before [L147-L147] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-20 18:15:19,152 INFO L97 edCorrectnessWitness]: Location invariant before [L146-L146] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-20 18:15:19,152 INFO L97 edCorrectnessWitness]: Location invariant before [L145-L145] ! multithreaded || ((((((((((((((((((((((((1LL - (long long )f11) + (long long )f12 >= 0LL && (1LL - (long long )f11) + (long long )f21 >= 0LL) && (1LL - (long long )f11) + (long long )f22 >= 0LL) && (1LL - (long long )f12) + (long long )f21 >= 0LL) && (1LL - (long long )f12) + (long long )f22 >= 0LL) && (1LL - (long long )f21) + (long long )f22 >= 0LL) && (long long )f11 + (long long )f12 >= 0LL) && (long long )f11 + (long long )f21 >= 0LL) && (long long )f11 + (long long )f22 >= 0LL) && (long long )f12 + (long long )f21 >= 0LL) && (long long )f12 + (long long )f22 >= 0LL) && (long long )f21 + (long long )f22 >= 0LL) && (1LL + (long long )f11) - (long long )f12 >= 0LL) && (1LL + (long long )f11) - (long long )f21 >= 0LL) && (1LL + (long long )f11) - (long long )f22 >= 0LL) && (1LL + (long long )f12) - (long long )f21 >= 0LL) && (1LL + (long long )f12) - (long long )f22 >= 0LL) && (1LL + (long long )f21) - (long long )f22 >= 0LL) && (2LL - (long long )f11) - (long long )f12 >= 0LL) && (2LL - (long long )f11) - (long long )f21 >= 0LL) && (2LL - (long long )f11) - (long long )f22 >= 0LL) && (2LL - (long long )f12) - (long long )f21 >= 0LL) && (2LL - (long long )f12) - (long long )f22 >= 0LL) && (2LL - (long long )f21) - (long long )f22 >= 0LL) [2024-06-20 18:15:19,152 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:15:19,152 INFO L106 edCorrectnessWitness]: ghost_update [L143-L143] multithreaded = 1; [2024-06-20 18:15:19,169 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:15:19,325 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:15:19,340 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:15:19,443 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:15:19,480 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:15:19,484 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19 WrapperNode [2024-06-20 18:15:19,484 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:15:19,485 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:15:19,485 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:15:19,485 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:15:19,490 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,500 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,544 INFO L138 Inliner]: procedures = 22, calls = 65, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 180 [2024-06-20 18:15:19,545 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:15:19,545 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:15:19,545 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:15:19,545 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:15:19,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,555 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,559 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,580 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-06-20 18:15:19,583 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,583 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,599 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,604 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,607 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,612 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,618 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:15:19,620 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:15:19,620 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:15:19,620 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:15:19,621 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (1/1) ... [2024-06-20 18:15:19,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:15:19,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:15:19,674 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) [2024-06-20 18:15:19,684 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 [2024-06-20 18:15:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:15:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-06-20 18:15:19,745 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-06-20 18:15:19,745 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-06-20 18:15:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-06-20 18:15:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-06-20 18:15:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-06-20 18:15:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-06-20 18:15:19,746 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-06-20 18:15:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:15:19,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-06-20 18:15:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-06-20 18:15:19,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:15:19,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:15:19,748 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-06-20 18:15:19,833 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:15:19,835 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:15:20,193 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:15:20,193 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:15:20,319 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:15:20,319 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 18:15:20,320 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:15:20 BoogieIcfgContainer [2024-06-20 18:15:20,320 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:15:20,322 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:15:20,322 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:15:20,325 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:15:20,325 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:15:19" (1/4) ... [2024-06-20 18:15:20,326 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c14a80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:15:20, skipping insertion in model container [2024-06-20 18:15:20,326 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:15:19" (2/4) ... [2024-06-20 18:15:20,327 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c14a80 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:15:20, skipping insertion in model container [2024-06-20 18:15:20,328 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:15:19" (3/4) ... [2024-06-20 18:15:20,329 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@71c14a80 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:15:20, skipping insertion in model container [2024-06-20 18:15:20,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:15:20" (4/4) ... [2024-06-20 18:15:20,331 INFO L112 eAbstractionObserver]: Analyzing ICFG test-easy10.wvr.c [2024-06-20 18:15:20,346 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:15:20,346 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2024-06-20 18:15:20,346 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:15:20,415 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-06-20 18:15:20,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 59 transitions, 146 flow [2024-06-20 18:15:20,491 INFO L124 PetriNetUnfolderBase]: 0/55 cut-off events. [2024-06-20 18:15:20,491 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-06-20 18:15:20,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 72 conditions, 55 events. 0/55 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 107 event pairs, 0 based on Foata normal form. 0/51 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-20 18:15:20,493 INFO L82 GeneralOperation]: Start removeDead. Operand has 72 places, 59 transitions, 146 flow [2024-06-20 18:15:20,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 62 places, 49 transitions, 110 flow [2024-06-20 18:15:20,510 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:15:20,518 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;@6ac252a7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:15:20,518 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2024-06-20 18:15:20,522 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:15:20,522 INFO L124 PetriNetUnfolderBase]: 0/6 cut-off events. [2024-06-20 18:15:20,522 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:15:20,523 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:15:20,523 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 18:15:20,524 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 18:15:20,529 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:15:20,529 INFO L85 PathProgramCache]: Analyzing trace with hash 337702336, now seen corresponding path program 1 times [2024-06-20 18:15:20,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:15:20,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1281180504] [2024-06-20 18:15:20,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:15:20,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:15:20,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:15:20,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:15:20,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:15:20,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1281180504] [2024-06-20 18:15:20,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1281180504] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:15:20,943 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:15:20,943 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 18:15:20,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797715317] [2024-06-20 18:15:20,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:15:20,951 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:15:20,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:15:20,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:15:20,980 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:15:21,001 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 59 [2024-06-20 18:15:21,005 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-06-20 18:15:21,005 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:15:21,005 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 59 [2024-06-20 18:15:21,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:15:21,432 INFO L124 PetriNetUnfolderBase]: 2723/4447 cut-off events. [2024-06-20 18:15:21,433 INFO L125 PetriNetUnfolderBase]: For 82/82 co-relation queries the response was YES. [2024-06-20 18:15:21,445 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8447 conditions, 4447 events. 2723/4447 cut-off events. For 82/82 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 29202 event pairs, 1898 based on Foata normal form. 1/4166 useless extension candidates. Maximal degree in co-relation 8434. Up to 3813 conditions per place. [2024-06-20 18:15:21,463 INFO L140 encePairwiseOnDemand]: 50/59 looper letters, 37 selfloop transitions, 5 changer transitions 0/63 dead transitions. [2024-06-20 18:15:21,464 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 63 transitions, 231 flow [2024-06-20 18:15:21,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:15:21,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:15:21,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 124 transitions. [2024-06-20 18:15:21,473 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.7005649717514124 [2024-06-20 18:15:21,474 INFO L175 Difference]: Start difference. First operand has 62 places, 49 transitions, 110 flow. Second operand 3 states and 124 transitions. [2024-06-20 18:15:21,475 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 63 transitions, 231 flow [2024-06-20 18:15:21,477 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 63 transitions, 224 flow, removed 0 selfloop flow, removed 4 redundant places. [2024-06-20 18:15:21,479 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 145 flow [2024-06-20 18:15:21,481 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=145, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2024-06-20 18:15:21,484 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, -1 predicate places. [2024-06-20 18:15:21,484 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 145 flow [2024-06-20 18:15:21,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-06-20 18:15:21,485 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:15:21,485 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:15:21,485 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:15:21,485 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 18:15:21,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:15:21,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1760494532, now seen corresponding path program 1 times [2024-06-20 18:15:21,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:15:21,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357672630] [2024-06-20 18:15:21,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:15:21,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:15:21,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:15:21,639 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:15:21,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:15:21,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357672630] [2024-06-20 18:15:21,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357672630] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:15:21,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:15:21,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-06-20 18:15:21,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723958750] [2024-06-20 18:15:21,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:15:21,641 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-06-20 18:15:21,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:15:21,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-06-20 18:15:21,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-06-20 18:15:21,663 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 26 out of 59 [2024-06-20 18:15:21,663 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 145 flow. Second operand has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-06-20 18:15:21,663 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:15:21,664 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 26 of 59 [2024-06-20 18:15:21,664 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:15:22,127 INFO L124 PetriNetUnfolderBase]: 2647/4339 cut-off events. [2024-06-20 18:15:22,128 INFO L125 PetriNetUnfolderBase]: For 782/782 co-relation queries the response was YES. [2024-06-20 18:15:22,136 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9504 conditions, 4339 events. 2647/4339 cut-off events. For 782/782 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 28405 event pairs, 1644 based on Foata normal form. 15/4141 useless extension candidates. Maximal degree in co-relation 9492. Up to 3682 conditions per place. [2024-06-20 18:15:22,156 INFO L140 encePairwiseOnDemand]: 49/59 looper letters, 43 selfloop transitions, 8 changer transitions 0/72 dead transitions. [2024-06-20 18:15:22,157 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 72 transitions, 299 flow [2024-06-20 18:15:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-06-20 18:15:22,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-06-20 18:15:22,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 160 transitions. [2024-06-20 18:15:22,163 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6779661016949152 [2024-06-20 18:15:22,163 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 145 flow. Second operand 4 states and 160 transitions. [2024-06-20 18:15:22,163 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 72 transitions, 299 flow [2024-06-20 18:15:22,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 72 transitions, 294 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:15:22,167 INFO L231 Difference]: Finished difference. Result has 63 places, 55 transitions, 182 flow [2024-06-20 18:15:22,167 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=136, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=182, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2024-06-20 18:15:22,168 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-06-20 18:15:22,168 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 182 flow [2024-06-20 18:15:22,171 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 27.25) internal successors, (109), 4 states have internal predecessors, (109), 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) [2024-06-20 18:15:22,171 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:15:22,171 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:15:22,171 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 18:15:22,172 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (and 5 more)] === [2024-06-20 18:15:22,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:15:22,176 INFO L85 PathProgramCache]: Analyzing trace with hash 1192499113, now seen corresponding path program 1 times [2024-06-20 18:15:22,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:15:22,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660439931] [2024-06-20 18:15:22,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:15:22,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:15:22,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:15:22,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-06-20 18:15:22,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:15:22,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660439931] [2024-06-20 18:15:22,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660439931] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:15:22,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:15:22,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-06-20 18:15:22,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181624969] [2024-06-20 18:15:22,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:15:22,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-06-20 18:15:22,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:15:22,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-06-20 18:15:22,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-06-20 18:15:22,659 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 27 out of 59 [2024-06-20 18:15:22,660 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 182 flow. Second operand has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-06-20 18:15:22,660 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:15:22,660 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 27 of 59 [2024-06-20 18:15:22,660 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:15:22,887 INFO L124 PetriNetUnfolderBase]: 1124/2252 cut-off events. [2024-06-20 18:15:22,888 INFO L125 PetriNetUnfolderBase]: For 1207/1272 co-relation queries the response was YES. [2024-06-20 18:15:22,895 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4522 conditions, 2252 events. 1124/2252 cut-off events. For 1207/1272 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 15577 event pairs, 646 based on Foata normal form. 318/2359 useless extension candidates. Maximal degree in co-relation 4507. Up to 1525 conditions per place. [2024-06-20 18:15:22,897 INFO L140 encePairwiseOnDemand]: 51/59 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2024-06-20 18:15:22,897 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 63 transitions, 260 flow [2024-06-20 18:15:22,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-06-20 18:15:22,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-06-20 18:15:22,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 201 transitions. [2024-06-20 18:15:22,899 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5677966101694916 [2024-06-20 18:15:22,899 INFO L175 Difference]: Start difference. First operand has 63 places, 55 transitions, 182 flow. Second operand 6 states and 201 transitions. [2024-06-20 18:15:22,899 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 63 transitions, 260 flow [2024-06-20 18:15:22,900 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 63 transitions, 242 flow, removed 3 selfloop flow, removed 2 redundant places. [2024-06-20 18:15:22,901 INFO L231 Difference]: Finished difference. Result has 63 places, 0 transitions, 0 flow [2024-06-20 18:15:22,901 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=63, PETRI_TRANSITIONS=0} [2024-06-20 18:15:22,902 INFO L281 CegarLoopForPetriNet]: 62 programPoint places, 1 predicate places. [2024-06-20 18:15:22,902 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 0 transitions, 0 flow [2024-06-20 18:15:22,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 28.8) internal successors, (144), 5 states have internal predecessors, (144), 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) [2024-06-20 18:15:22,907 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (7 of 8 remaining) [2024-06-20 18:15:22,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONWITNESS_INVARIANT (6 of 8 remaining) [2024-06-20 18:15:22,908 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONWITNESS_INVARIANT (5 of 8 remaining) [2024-06-20 18:15:22,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONWITNESS_INVARIANT (4 of 8 remaining) [2024-06-20 18:15:22,911 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 8 remaining) [2024-06-20 18:15:22,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 8 remaining) [2024-06-20 18:15:22,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2024-06-20 18:15:22,912 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2024-06-20 18:15:22,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-06-20 18:15:22,913 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2024-06-20 18:15:22,915 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:15:22,916 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:15:22,919 INFO L507 ceAbstractionStarter]: Automizer considered 4 witness invariants [2024-06-20 18:15:22,920 INFO L508 ceAbstractionStarter]: WitnessConsidered=4 [2024-06-20 18:15:22,920 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:15:22 BasicIcfg [2024-06-20 18:15:22,920 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:15:22,922 INFO L158 Benchmark]: Toolchain (without parser) took 3796.29ms. Allocated memory was 155.2MB in the beginning and 419.4MB in the end (delta: 264.2MB). Free memory was 93.2MB in the beginning and 162.4MB in the end (delta: -69.2MB). Peak memory consumption was 195.8MB. Max. memory is 16.1GB. [2024-06-20 18:15:22,923 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory was 114.1MB in the beginning and 114.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:15:22,923 INFO L158 Benchmark]: Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:15:22,925 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.73ms. Allocated memory is still 155.2MB. Free memory was 93.2MB in the beginning and 75.2MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-06-20 18:15:22,925 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.94ms. Allocated memory is still 155.2MB. Free memory was 75.2MB in the beginning and 70.2MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2024-06-20 18:15:22,925 INFO L158 Benchmark]: Boogie Preprocessor took 74.18ms. Allocated memory is still 155.2MB. Free memory was 70.2MB in the beginning and 67.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:15:22,926 INFO L158 Benchmark]: RCFGBuilder took 699.82ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 67.0MB in the beginning and 166.5MB in the end (delta: -99.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. [2024-06-20 18:15:22,926 INFO L158 Benchmark]: TraceAbstraction took 2598.38ms. Allocated memory was 255.9MB in the beginning and 419.4MB in the end (delta: 163.6MB). Free memory was 166.5MB in the beginning and 162.4MB in the end (delta: 4.1MB). Peak memory consumption was 166.7MB. Max. memory is 16.1GB. [2024-06-20 18:15:22,930 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 155.2MB. Free memory was 114.1MB in the beginning and 114.0MB in the end (delta: 139.8kB). There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.15ms. Allocated memory is still 155.2MB. Free memory is still 96.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.73ms. Allocated memory is still 155.2MB. Free memory was 93.2MB in the beginning and 75.2MB in the end (delta: 18.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.94ms. Allocated memory is still 155.2MB. Free memory was 75.2MB in the beginning and 70.2MB in the end (delta: 5.1MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 74.18ms. Allocated memory is still 155.2MB. Free memory was 70.2MB in the beginning and 67.3MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 699.82ms. Allocated memory was 155.2MB in the beginning and 255.9MB in the end (delta: 100.7MB). Free memory was 67.0MB in the beginning and 166.5MB in the end (delta: -99.6MB). Peak memory consumption was 18.7MB. Max. memory is 16.1GB. * TraceAbstraction took 2598.38ms. Allocated memory was 255.9MB in the beginning and 419.4MB in the end (delta: 163.6MB). Free memory was 166.5MB in the beginning and 162.4MB in the end (delta: 4.1MB). Peak memory consumption was 166.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 144]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 145]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 146]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - PositiveResult [Line: 147]: invariant of correctness witness holds For all program executions holds that invariant of correctness witness holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 100 locations, 8 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.5s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 122 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 83 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 4 mSDsCounter, 21 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 227 IncrementalHoareTripleChecker+Invalid, 248 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 21 mSolverCounterUnsat, 19 mSDtfsCounter, 227 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=182occurred in iteration=2, InterpolantAutomatonStates: 13, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 23 ConstructedInterpolants, 0 QuantifiedInterpolants, 745 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-20 18:15:22,972 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE