./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i --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/13-privatized_29-multiple-protecting2-vesal_true.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/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i ./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_29-multiple-protecting2-vesal_true.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 18:09:24,885 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-06-20 18:09:24,967 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-06-20 18:09:24,974 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-06-20 18:09:24,975 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-06-20 18:09:25,003 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-06-20 18:09:25,004 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-06-20 18:09:25,005 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-06-20 18:09:25,005 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-06-20 18:09:25,009 INFO L153 SettingsManager]: * Use memory slicer=true [2024-06-20 18:09:25,010 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-06-20 18:09:25,010 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-06-20 18:09:25,011 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-06-20 18:09:25,012 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-06-20 18:09:25,012 INFO L153 SettingsManager]: * Use SBE=true [2024-06-20 18:09:25,012 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-06-20 18:09:25,013 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-06-20 18:09:25,013 INFO L153 SettingsManager]: * sizeof long=4 [2024-06-20 18:09:25,013 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-06-20 18:09:25,013 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-06-20 18:09:25,014 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-06-20 18:09:25,014 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-06-20 18:09:25,014 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-06-20 18:09:25,015 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-06-20 18:09:25,015 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-06-20 18:09:25,015 INFO L153 SettingsManager]: * sizeof long double=12 [2024-06-20 18:09:25,015 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-06-20 18:09:25,016 INFO L153 SettingsManager]: * Use constant arrays=true [2024-06-20 18:09:25,016 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-06-20 18:09:25,017 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-06-20 18:09:25,018 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-06-20 18:09:25,018 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-06-20 18:09:25,018 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:09:25,018 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-06-20 18:09:25,018 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-06-20 18:09:25,019 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-06-20 18:09:25,019 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-06-20 18:09:25,019 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-06-20 18:09:25,019 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-06-20 18:09:25,019 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-06-20 18:09:25,020 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-06-20 18:09:25,020 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-06-20 18:09:25,020 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-06-20 18:09:25,020 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessparser: Only consider loop invariants -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of reach_error function -> false [2024-06-20 18:09:25,252 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-06-20 18:09:25,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-06-20 18:09:25,271 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-06-20 18:09:25,272 INFO L270 PluginConnector]: Initializing CDTParser... [2024-06-20 18:09:25,273 INFO L274 PluginConnector]: CDTParser initialized [2024-06-20 18:09:25,273 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-06-20 18:09:26,226 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-06-20 18:09:26,254 ERROR L? ?]: Error during toolchain job processing: java.lang.NullPointerException at org.eclipse.cdt.internal.core.model.PathEntry.kindFromString(PathEntry.java:80) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.decodePathEntry(DefaultPathEntryStore.java:127) at org.eclipse.cdt.internal.core.model.DefaultPathEntryStore.getRawPathEntries(DefaultPathEntryStore.java:97) at org.eclipse.cdt.internal.core.model.PathEntryStoreProxy.getRawPathEntries(PathEntryStoreProxy.java:102) at org.eclipse.cdt.internal.core.model.PathEntryManager.getRawPathEntries(PathEntryManager.java:666) at org.eclipse.cdt.core.model.CoreModel.getRawPathEntries(CoreModel.java:937) at org.eclipse.cdt.core.model.CoreModel.oldIsScannerInformationEmpty(CoreModel.java:1307) at org.eclipse.cdt.core.model.CoreModel.isScannerInformationEmpty(CoreModel.java:1252) at org.eclipse.cdt.internal.core.pdom.indexer.ProjectIndexerInputAdapter.isFileBuildConfigured(ProjectIndexerInputAdapter.java:267) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.isRequiredInIndex(AbstractIndexerTask.java:748) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.extractFiles(AbstractIndexerTask.java:667) at org.eclipse.cdt.internal.core.pdom.AbstractIndexerTask.runTask(AbstractIndexerTask.java:558) at org.eclipse.cdt.internal.core.pdom.indexer.PDOMIndexerTask.run(PDOMIndexerTask.java:164) at org.eclipse.cdt.internal.core.pdom.PDOMIndexerJob.run(PDOMIndexerJob.java:160) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2024-06-20 18:09:26,468 INFO L384 CDTParser]: Found 1 translation units. [2024-06-20 18:09:26,473 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/13-privatized_29-multiple-protecting2-vesal_true.i [2024-06-20 18:09:26,490 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bf2cad9/cee8c37cf2924b699fd1eed079a0671c/FLAG0158383e7 [2024-06-20 18:09:26,500 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/40bf2cad9/cee8c37cf2924b699fd1eed079a0671c [2024-06-20 18:09:26,502 INFO L270 PluginConnector]: Initializing Witness Parser... [2024-06-20 18:09:26,502 INFO L274 PluginConnector]: Witness Parser initialized [2024-06-20 18:09:26,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/./goblint.2024-05-21_14-57-05.files/mutex-meet/13-privatized_29-multiple-protecting2-vesal_true.yml/witness.yml [2024-06-20 18:09:26,613 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-06-20 18:09:26,614 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2024-06-20 18:09:26,615 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-06-20 18:09:26,615 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-06-20 18:09:26,619 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-06-20 18:09:26,619 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:09:26" (1/2) ... [2024-06-20 18:09:26,620 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b84ab79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:26, skipping insertion in model container [2024-06-20 18:09:26,620 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.06 06:09:26" (1/2) ... [2024-06-20 18:09:26,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@1469fbfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.06 06:09:26, skipping insertion in model container [2024-06-20 18:09:26,622 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:26" (2/2) ... [2024-06-20 18:09:26,622 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b84ab79 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:26, skipping insertion in model container [2024-06-20 18:09:26,622 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:26" (2/2) ... [2024-06-20 18:09:26,622 INFO L83 nessWitnessExtractor]: Extracting all invariants from correctness witness [2024-06-20 18:09:26,655 INFO L95 edCorrectnessWitness]: Found the following entries in the witness: [2024-06-20 18:09:26,656 INFO L97 edCorrectnessWitness]: Location invariant before [L699-L699] ((! multithreaded || (__global_lock_locked || ((0 <= g2 && g2 <= 1) && (g2 == 0 || g2 == 1)))) && (! multithreaded || ((0 <= g2 && g2 <= 1) && (g2 == 0 || g2 == 1)))) && (! multithreaded || (mutex2_locked || g2 == 0)) [2024-06-20 18:09:26,656 INFO L103 edCorrectnessWitness]: ghost_variable mutex1_locked = 0 [2024-06-20 18:09:26,656 INFO L103 edCorrectnessWitness]: ghost_variable mutex2_locked = 0 [2024-06-20 18:09:26,657 INFO L103 edCorrectnessWitness]: ghost_variable multithreaded = 0 [2024-06-20 18:09:26,657 INFO L103 edCorrectnessWitness]: ghost_variable __global_lock_locked = 0 [2024-06-20 18:09:26,657 INFO L106 edCorrectnessWitness]: ghost_update [L705-L705] __global_lock_locked = 1; [2024-06-20 18:09:26,658 INFO L106 edCorrectnessWitness]: ghost_update [L689-L689] __global_lock_locked = 0; [2024-06-20 18:09:26,658 INFO L106 edCorrectnessWitness]: ghost_update [L703-L703] __global_lock_locked = 0; [2024-06-20 18:09:26,658 INFO L106 edCorrectnessWitness]: ghost_update [L708-L708] mutex2_locked = 0; [2024-06-20 18:09:26,658 INFO L106 edCorrectnessWitness]: ghost_update [L698-L698] multithreaded = 1; [2024-06-20 18:09:26,658 INFO L106 edCorrectnessWitness]: ghost_update [L700-L700] __global_lock_locked = 1; [2024-06-20 18:09:26,658 INFO L106 edCorrectnessWitness]: ghost_update [L707-L707] __global_lock_locked = 0; [2024-06-20 18:09:26,658 INFO L106 edCorrectnessWitness]: ghost_update [L709-L709] mutex1_locked = 0; [2024-06-20 18:09:26,659 INFO L106 edCorrectnessWitness]: ghost_update [L686-L686] mutex2_locked = 1; [2024-06-20 18:09:26,659 INFO L106 edCorrectnessWitness]: ghost_update [L693-L693] mutex2_locked = 0; [2024-06-20 18:09:26,659 INFO L106 edCorrectnessWitness]: ghost_update [L690-L690] __global_lock_locked = 1; [2024-06-20 18:09:26,659 INFO L106 edCorrectnessWitness]: ghost_update [L687-L687] __global_lock_locked = 1; [2024-06-20 18:09:26,659 INFO L106 edCorrectnessWitness]: ghost_update [L699-L699] mutex1_locked = 1; [2024-06-20 18:09:26,660 INFO L106 edCorrectnessWitness]: ghost_update [L704-L704] mutex2_locked = 1; [2024-06-20 18:09:26,660 INFO L106 edCorrectnessWitness]: ghost_update [L692-L692] __global_lock_locked = 0; [2024-06-20 18:09:26,692 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-06-20 18:09:27,012 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:09:27,024 INFO L202 MainTranslator]: Completed pre-run Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local Start Parsing Local [2024-06-20 18:09:27,109 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-06-20 18:09:27,146 INFO L206 MainTranslator]: Completed translation [2024-06-20 18:09:27,147 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator CORRECTNESS_WITNESS 20.06 06:09:27 WrapperNode [2024-06-20 18:09:27,147 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-06-20 18:09:27,148 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-06-20 18:09:27,149 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-06-20 18:09:27,149 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-06-20 18:09:27,154 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,165 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,187 INFO L138 Inliner]: procedures = 162, calls = 43, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 103 [2024-06-20 18:09:27,187 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-06-20 18:09:27,188 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-06-20 18:09:27,188 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-06-20 18:09:27,188 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-06-20 18:09:27,197 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,197 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,211 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,231 INFO L175 MemorySlicer]: Split 17 memory accesses to 4 slices as follows [2, 5, 5, 5]. 29 percent of accesses are in the largest equivalence class. The 17 initializations are split as follows [2, 5, 5, 5]. The 0 writes are split as follows [0, 0, 0, 0]. [2024-06-20 18:09:27,232 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,232 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,238 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,242 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,245 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,249 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,251 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-06-20 18:09:27,256 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-06-20 18:09:27,256 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-06-20 18:09:27,256 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-06-20 18:09:27,257 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 06:09:27" (1/1) ... [2024-06-20 18:09:27,261 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-06-20 18:09:27,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-06-20 18:09:27,284 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 18:09:27,301 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 18:09:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2024-06-20 18:09:27,316 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2024-06-20 18:09:27,316 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-06-20 18:09:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-06-20 18:09:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-06-20 18:09:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-06-20 18:09:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-06-20 18:09:27,317 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-06-20 18:09:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-06-20 18:09:27,318 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-06-20 18:09:27,318 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-06-20 18:09:27,319 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 18:09:27,439 INFO L244 CfgBuilder]: Building ICFG [2024-06-20 18:09:27,440 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-06-20 18:09:27,592 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-06-20 18:09:27,603 INFO L293 CfgBuilder]: Performing block encoding [2024-06-20 18:09:27,754 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-06-20 18:09:27,754 INFO L320 CfgBuilder]: Removed 0 assume(true) statements. [2024-06-20 18:09:27,754 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:09:27 BoogieIcfgContainer [2024-06-20 18:09:27,754 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-06-20 18:09:27,756 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-06-20 18:09:27,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-06-20 18:09:27,760 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-06-20 18:09:27,760 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.06 06:09:26" (1/4) ... [2024-06-20 18:09:27,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aee5640 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.06 06:09:27, skipping insertion in model container [2024-06-20 18:09:27,761 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.witnessparser CORRECTNESS_WITNESS 20.06 06:09:26" (2/4) ... [2024-06-20 18:09:27,761 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aee5640 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:09:27, skipping insertion in model container [2024-06-20 18:09:27,761 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 06:09:27" (3/4) ... [2024-06-20 18:09:27,762 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5aee5640 and model type witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CORRECTNESS_WITNESS 20.06 06:09:27, skipping insertion in model container [2024-06-20 18:09:27,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.06 06:09:27" (4/4) ... [2024-06-20 18:09:27,764 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_29-multiple-protecting2-vesal_true.i [2024-06-20 18:09:27,778 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-06-20 18:09:27,779 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-06-20 18:09:27,779 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-06-20 18:09:27,809 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2024-06-20 18:09:27,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 42 places, 38 transitions, 83 flow [2024-06-20 18:09:27,871 INFO L124 PetriNetUnfolderBase]: 0/37 cut-off events. [2024-06-20 18:09:27,873 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 18:09:27,875 INFO L83 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 37 events. 0/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 28 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2024-06-20 18:09:27,875 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 38 transitions, 83 flow [2024-06-20 18:09:27,877 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 22 places, 18 transitions, 39 flow [2024-06-20 18:09:27,885 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-06-20 18:09:27,892 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;@26572372, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-06-20 18:09:27,892 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-06-20 18:09:27,896 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-06-20 18:09:27,896 INFO L124 PetriNetUnfolderBase]: 0/5 cut-off events. [2024-06-20 18:09:27,896 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-06-20 18:09:27,897 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:27,897 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2024-06-20 18:09:27,898 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:27,902 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:27,902 INFO L85 PathProgramCache]: Analyzing trace with hash 342375992, now seen corresponding path program 1 times [2024-06-20 18:09:27,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:27,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511440799] [2024-06-20 18:09:27,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:27,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:28,259 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 18:09:28,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:28,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511440799] [2024-06-20 18:09:28,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1511440799] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:28,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:28,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-06-20 18:09:28,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516775454] [2024-06-20 18:09:28,264 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:28,271 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-06-20 18:09:28,275 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:28,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-06-20 18:09:28,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-06-20 18:09:28,304 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-06-20 18:09:28,306 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 39 flow. Second operand has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 18:09:28,306 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:28,306 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-06-20 18:09:28,307 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:28,347 INFO L124 PetriNetUnfolderBase]: 15/51 cut-off events. [2024-06-20 18:09:28,347 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-06-20 18:09:28,348 INFO L83 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 51 events. 15/51 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 71 event pairs, 8 based on Foata normal form. 3/52 useless extension candidates. Maximal degree in co-relation 89. Up to 35 conditions per place. [2024-06-20 18:09:28,350 INFO L140 encePairwiseOnDemand]: 35/38 looper letters, 12 selfloop transitions, 2 changer transitions 0/19 dead transitions. [2024-06-20 18:09:28,350 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 19 transitions, 69 flow [2024-06-20 18:09:28,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-06-20 18:09:28,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-06-20 18:09:28,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2024-06-20 18:09:28,359 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47368421052631576 [2024-06-20 18:09:28,361 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 39 flow. Second operand 3 states and 54 transitions. [2024-06-20 18:09:28,361 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 19 transitions, 69 flow [2024-06-20 18:09:28,363 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 19 transitions, 68 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-06-20 18:09:28,365 INFO L231 Difference]: Finished difference. Result has 24 places, 18 transitions, 46 flow [2024-06-20 18:09:28,366 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=46, PETRI_PLACES=24, PETRI_TRANSITIONS=18} [2024-06-20 18:09:28,370 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 2 predicate places. [2024-06-20 18:09:28,370 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 18 transitions, 46 flow [2024-06-20 18:09:28,371 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.333333333333334) internal successors, (43), 3 states have internal predecessors, (43), 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 18:09:28,371 INFO L200 CegarLoopForPetriNet]: Found error trace [2024-06-20 18:09:28,371 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-06-20 18:09:28,372 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-06-20 18:09:28,372 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT === [ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-06-20 18:09:28,373 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-06-20 18:09:28,373 INFO L85 PathProgramCache]: Analyzing trace with hash -1730170603, now seen corresponding path program 1 times [2024-06-20 18:09:28,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-06-20 18:09:28,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692659359] [2024-06-20 18:09:28,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-06-20 18:09:28,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-06-20 18:09:28,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-06-20 18:09:28,531 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 18:09:28,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-06-20 18:09:28,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692659359] [2024-06-20 18:09:28,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692659359] provided 1 perfect and 0 imperfect interpolant sequences [2024-06-20 18:09:28,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-06-20 18:09:28,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-06-20 18:09:28,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1378451301] [2024-06-20 18:09:28,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-06-20 18:09:28,533 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-06-20 18:09:28,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-06-20 18:09:28,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-06-20 18:09:28,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-06-20 18:09:28,544 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 38 [2024-06-20 18:09:28,544 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 24 places, 18 transitions, 46 flow. Second operand has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 18:09:28,545 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-06-20 18:09:28,546 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 38 [2024-06-20 18:09:28,546 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-06-20 18:09:28,617 INFO L124 PetriNetUnfolderBase]: 9/38 cut-off events. [2024-06-20 18:09:28,618 INFO L125 PetriNetUnfolderBase]: For 6/6 co-relation queries the response was YES. [2024-06-20 18:09:28,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 80 conditions, 38 events. 9/38 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 34 event pairs, 0 based on Foata normal form. 7/45 useless extension candidates. Maximal degree in co-relation 67. Up to 10 conditions per place. [2024-06-20 18:09:28,619 INFO L140 encePairwiseOnDemand]: 31/38 looper letters, 0 selfloop transitions, 0 changer transitions 21/21 dead transitions. [2024-06-20 18:09:28,620 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 21 transitions, 84 flow [2024-06-20 18:09:28,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-06-20 18:09:28,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2024-06-20 18:09:28,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 104 transitions. [2024-06-20 18:09:28,622 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.39097744360902253 [2024-06-20 18:09:28,623 INFO L175 Difference]: Start difference. First operand has 24 places, 18 transitions, 46 flow. Second operand 7 states and 104 transitions. [2024-06-20 18:09:28,623 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 21 transitions, 84 flow [2024-06-20 18:09:28,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 26 places, 21 transitions, 78 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-06-20 18:09:28,624 INFO L231 Difference]: Finished difference. Result has 26 places, 0 transitions, 0 flow [2024-06-20 18:09:28,625 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=36, PETRI_DIFFERENCE_MINUEND_PLACES=20, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=17, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=17, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=26, PETRI_TRANSITIONS=0} [2024-06-20 18:09:28,626 INFO L281 CegarLoopForPetriNet]: 22 programPoint places, 4 predicate places. [2024-06-20 18:09:28,626 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 0 transitions, 0 flow [2024-06-20 18:09:28,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.333333333333334) internal successors, (80), 6 states have internal predecessors, (80), 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 18:09:28,628 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONWITNESS_INVARIANT (1 of 2 remaining) [2024-06-20 18:09:28,629 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2024-06-20 18:09:28,629 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-06-20 18:09:28,629 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1] [2024-06-20 18:09:28,631 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-06-20 18:09:28,636 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2024-06-20 18:09:28,640 INFO L507 ceAbstractionStarter]: Automizer considered 1 witness invariants [2024-06-20 18:09:28,642 INFO L508 ceAbstractionStarter]: WitnessConsidered=1 [2024-06-20 18:09:28,643 INFO L201 PluginConnector]: Adding new model witness.yml de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.06 06:09:28 BasicIcfg [2024-06-20 18:09:28,643 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-06-20 18:09:28,643 INFO L158 Benchmark]: Toolchain (without parser) took 2029.13ms. Allocated memory is still 180.4MB. Free memory was 104.8MB in the beginning and 98.5MB in the end (delta: 6.3MB). Peak memory consumption was 7.1MB. Max. memory is 16.1GB. [2024-06-20 18:09:28,644 INFO L158 Benchmark]: CDTParser took 0.75ms. Allocated memory is still 109.1MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:09:28,644 INFO L158 Benchmark]: Witness Parser took 0.50ms. Allocated memory is still 180.4MB. Free memory was 109.1MB in the beginning and 108.9MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:09:28,645 INFO L158 Benchmark]: CACSL2BoogieTranslator took 532.25ms. Allocated memory is still 180.4MB. Free memory was 104.5MB in the beginning and 134.9MB in the end (delta: -30.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. [2024-06-20 18:09:28,648 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.06ms. Allocated memory is still 180.4MB. Free memory was 134.9MB in the beginning and 132.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:09:28,649 INFO L158 Benchmark]: Boogie Preprocessor took 67.20ms. Allocated memory is still 180.4MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-06-20 18:09:28,650 INFO L158 Benchmark]: RCFGBuilder took 498.89ms. Allocated memory is still 180.4MB. Free memory was 130.8MB in the beginning and 91.5MB in the end (delta: 39.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. [2024-06-20 18:09:28,651 INFO L158 Benchmark]: TraceAbstraction took 886.77ms. Allocated memory is still 180.4MB. Free memory was 90.3MB in the beginning and 98.5MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. [2024-06-20 18:09:28,653 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.75ms. Allocated memory is still 109.1MB. Free memory is still 70.5MB. There was no memory consumed. Max. memory is 16.1GB. * Witness Parser took 0.50ms. Allocated memory is still 180.4MB. Free memory was 109.1MB in the beginning and 108.9MB in the end (delta: 151.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 532.25ms. Allocated memory is still 180.4MB. Free memory was 104.5MB in the beginning and 134.9MB in the end (delta: -30.4MB). Peak memory consumption was 15.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 39.06ms. Allocated memory is still 180.4MB. Free memory was 134.9MB in the beginning and 132.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 67.20ms. Allocated memory is still 180.4MB. Free memory was 132.9MB in the beginning and 130.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 498.89ms. Allocated memory is still 180.4MB. Free memory was 130.8MB in the beginning and 91.5MB in the end (delta: 39.3MB). Peak memory consumption was 37.7MB. Max. memory is 16.1GB. * TraceAbstraction took 886.77ms. Allocated memory is still 180.4MB. Free memory was 90.3MB in the beginning and 98.5MB in the end (delta: -8.1MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 699]: 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 3 procedures, 54 locations, 2 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: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 20 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 6 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6 mSolverCounterUnsat, 2 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=1, InterpolantAutomatonStates: 10, 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, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 13 ConstructedInterpolants, 0 QuantifiedInterpolants, 71 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-06-20 18:09:28,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE