./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i --full-output --preprocessor.use.memory.slicer true --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version e93f2d6f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e93f2d6-m [2023-11-21 16:38:49,085 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 16:38:49,145 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-21 16:38:49,160 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 16:38:49,161 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 16:38:49,188 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 16:38:49,188 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 16:38:49,188 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 16:38:49,189 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 16:38:49,192 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 16:38:49,193 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 16:38:49,193 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 16:38:49,193 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 16:38:49,194 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 16:38:49,195 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 16:38:49,195 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 16:38:49,195 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-21 16:38:49,195 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 16:38:49,195 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 16:38:49,195 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 16:38:49,196 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 16:38:49,197 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 16:38:49,197 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 16:38:49,197 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 16:38:49,197 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 16:38:49,197 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 16:38:49,198 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 16:38:49,198 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 16:38:49,198 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 16:38:49,198 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-21 16:38:49,199 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 16:38:49,199 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 16:38:49,199 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 16:38:49,200 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 16:38:49,200 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 16:38:49,200 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-21 16:38:49,200 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-21 16:38:49,200 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 16:38:49,201 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 16:38:49,201 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 16:38:49,201 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 16:38:49,202 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 16:38:49,202 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 16:38:49,202 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-21 16:38:49,461 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 16:38:49,489 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 16:38:49,491 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 16:38:49,492 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 16:38:49,492 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 16:38:49,493 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2023-11-21 16:38:50,599 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 16:38:50,846 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 16:38:50,846 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2023-11-21 16:38:50,867 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b58031e9f/e11242e83c8c4948a09e54f1c25beab8/FLAG6ddb7b2ff [2023-11-21 16:38:50,883 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/b58031e9f/e11242e83c8c4948a09e54f1c25beab8 [2023-11-21 16:38:50,885 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 16:38:50,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 16:38:50,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 16:38:50,890 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 16:38:50,894 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 16:38:50,894 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:50" (1/1) ... [2023-11-21 16:38:50,895 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@39692fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:50, skipping insertion in model container [2023-11-21 16:38:50,895 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:50" (1/1) ... [2023-11-21 16:38:50,949 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 16:38:51,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:38:51,612 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 16:38:51,701 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:38:51,796 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:38:51,797 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:38:51,802 INFO L206 MainTranslator]: Completed translation [2023-11-21 16:38:51,803 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:51 WrapperNode [2023-11-21 16:38:51,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 16:38:51,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 16:38:51,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 16:38:51,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 16:38:51,810 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:51" (1/1) ... [2023-11-21 16:38:51,863 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:51" (1/1) ... [2023-11-21 16:38:51,978 INFO L138 Inliner]: procedures = 490, calls = 133, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 3341 [2023-11-21 16:38:51,978 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 16:38:51,979 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 16:38:51,980 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 16:38:51,980 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 16:38:51,988 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:51" (1/1) ... [2023-11-21 16:38:51,988 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:51" (1/1) ... [2023-11-21 16:38:52,045 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:51" (1/1) ... [2023-11-21 16:38:52,071 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:161) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:157) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processBody(AliasAnalysis.java:128) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.aliasAnalysis(AliasAnalysis.java:117) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.tryToSliceMemory(HeapSplitter.java:121) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.process(HeapSplitter.java:107) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:155) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 16:38:52,075 INFO L158 Benchmark]: Toolchain (without parser) took 1187.89ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 37.6MB in the beginning and 44.1MB in the end (delta: -6.5MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-11-21 16:38:52,075 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 48.2MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 16:38:52,076 INFO L158 Benchmark]: CACSL2BoogieTranslator took 914.30ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 37.4MB in the beginning and 41.6MB in the end (delta: -4.2MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. [2023-11-21 16:38:52,076 INFO L158 Benchmark]: Boogie Procedure Inliner took 173.89ms. Allocated memory is still 88.1MB. Free memory was 41.6MB in the beginning and 36.5MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2023-11-21 16:38:52,077 INFO L158 Benchmark]: Boogie Preprocessor took 94.04ms. Allocated memory is still 88.1MB. Free memory was 36.5MB in the beginning and 44.1MB in the end (delta: -7.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. [2023-11-21 16:38:52,078 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 48.2MB. Free memory was 28.8MB in the beginning and 28.8MB in the end (delta: 52.6kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 914.30ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 37.4MB in the beginning and 41.6MB in the end (delta: -4.2MB). Peak memory consumption was 20.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 173.89ms. Allocated memory is still 88.1MB. Free memory was 41.6MB in the beginning and 36.5MB in the end (delta: 5.1MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 94.04ms. Allocated memory is still 88.1MB. Free memory was 36.5MB in the beginning and 44.1MB in the end (delta: -7.6MB). Peak memory consumption was 11.0MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.boogie.preprocessor: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 --preprocessor.use.memory.slicer true --- Real Ultimate output --- This is Ultimate 0.2.3-dev-e93f2d6-m [2023-11-21 16:38:53,784 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-21 16:38:53,854 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Bitvector.epf [2023-11-21 16:38:53,858 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-21 16:38:53,859 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-21 16:38:53,883 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-21 16:38:53,883 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-21 16:38:53,884 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-21 16:38:53,884 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-21 16:38:53,887 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-21 16:38:53,887 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-21 16:38:53,888 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-21 16:38:53,888 INFO L153 SettingsManager]: * Use SBE=true [2023-11-21 16:38:53,889 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-21 16:38:53,889 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-21 16:38:53,890 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-21 16:38:53,890 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-21 16:38:53,890 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-21 16:38:53,890 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-21 16:38:53,890 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-21 16:38:53,891 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-21 16:38:53,891 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-21 16:38:53,892 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2023-11-21 16:38:53,892 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2023-11-21 16:38:53,892 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-21 16:38:53,892 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-21 16:38:53,892 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-21 16:38:53,893 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-21 16:38:53,893 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-21 16:38:53,893 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-21 16:38:53,894 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-21 16:38:53,894 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-21 16:38:53,894 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-21 16:38:53,895 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-21 16:38:53,895 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-21 16:38:53,895 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2023-11-21 16:38:53,895 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2023-11-21 16:38:53,896 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-21 16:38:53,896 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-21 16:38:53,896 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-21 16:38:53,897 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-21 16:38:53,897 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-21 16:38:53,897 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-21 16:38:53,897 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-21 16:38:53,897 INFO L153 SettingsManager]: * Logic for external solver=AUFBV 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/UGemCutter-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor: Use memory slicer -> true [2023-11-21 16:38:54,167 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-21 16:38:54,213 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-21 16:38:54,215 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-21 16:38:54,216 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-21 16:38:54,216 INFO L274 PluginConnector]: CDTParser initialized [2023-11-21 16:38:54,217 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2023-11-21 16:38:55,367 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-21 16:38:55,652 INFO L384 CDTParser]: Found 1 translation units. [2023-11-21 16:38:55,653 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2023-11-21 16:38:55,677 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8142aa9b5/4fe935330c184e8a965a7e8c30656861/FLAGf475a59f6 [2023-11-21 16:38:55,690 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/8142aa9b5/4fe935330c184e8a965a7e8c30656861 [2023-11-21 16:38:55,692 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-21 16:38:55,693 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-21 16:38:55,695 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-21 16:38:55,695 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-21 16:38:55,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-21 16:38:55,699 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:55" (1/1) ... [2023-11-21 16:38:55,700 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55a59740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:55, skipping insertion in model container [2023-11-21 16:38:55,700 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.11 04:38:55" (1/1) ... [2023-11-21 16:38:55,749 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-21 16:38:56,312 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:38:56,330 INFO L202 MainTranslator]: Completed pre-run [2023-11-21 16:38:56,440 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-21 16:38:56,541 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:38:56,541 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-21 16:38:56,547 INFO L206 MainTranslator]: Completed translation [2023-11-21 16:38:56,547 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:56 WrapperNode [2023-11-21 16:38:56,548 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-21 16:38:56,549 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-21 16:38:56,549 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-21 16:38:56,549 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-21 16:38:56,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:56" (1/1) ... [2023-11-21 16:38:56,585 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:56" (1/1) ... [2023-11-21 16:38:56,690 INFO L138 Inliner]: procedures = 494, calls = 133, calls flagged for inlining = 48, calls inlined = 122, statements flattened = 3162 [2023-11-21 16:38:56,691 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-21 16:38:56,691 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-21 16:38:56,691 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-21 16:38:56,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-21 16:38:56,700 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:56" (1/1) ... [2023-11-21 16:38:56,700 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:56" (1/1) ... [2023-11-21 16:38:56,723 INFO L184 PluginConnector]: Executing the observer HeapSplitter from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.11 04:38:56" (1/1) ... [2023-11-21 16:38:56,743 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.boogie.preprocessor has thrown an exception: java.lang.ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:161) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processStatementList(AliasAnalysis.java:157) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processBody(AliasAnalysis.java:128) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.aliasAnalysis(AliasAnalysis.java:117) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.tryToSliceMemory(HeapSplitter.java:121) at de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.HeapSplitter.process(HeapSplitter.java:107) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.DFSTreeWalker.runObserver(DFSTreeWalker.java:65) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.runObserver(BaseWalker.java:93) at de.uni_freiburg.informatik.ultimate.core.coreplugin.modelwalker.BaseWalker.run(BaseWalker.java:86) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:166) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:155) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2023-11-21 16:38:56,746 INFO L158 Benchmark]: Toolchain (without parser) took 1052.42ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 37.1MB in the beginning and 28.1MB in the end (delta: 9.0MB). Peak memory consumption was 27.8MB. Max. memory is 16.1GB. [2023-11-21 16:38:56,747 INFO L158 Benchmark]: CDTParser took 0.96ms. Allocated memory is still 62.9MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. [2023-11-21 16:38:56,747 INFO L158 Benchmark]: CACSL2BoogieTranslator took 852.82ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 36.8MB in the beginning and 43.3MB in the end (delta: -6.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. [2023-11-21 16:38:56,748 INFO L158 Benchmark]: Boogie Procedure Inliner took 142.33ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 35.0MB in the end (delta: 8.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. [2023-11-21 16:38:56,748 INFO L158 Benchmark]: Boogie Preprocessor took 53.68ms. Allocated memory is still 81.8MB. Free memory was 34.6MB in the beginning and 28.1MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2023-11-21 16:38:56,749 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.96ms. Allocated memory is still 62.9MB. Free memory is still 43.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 852.82ms. Allocated memory was 62.9MB in the beginning and 81.8MB in the end (delta: 18.9MB). Free memory was 36.8MB in the beginning and 43.3MB in the end (delta: -6.5MB). Peak memory consumption was 31.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 142.33ms. Allocated memory is still 81.8MB. Free memory was 43.3MB in the beginning and 35.0MB in the end (delta: 8.4MB). Peak memory consumption was 19.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 53.68ms. Allocated memory is still 81.8MB. Free memory was 34.6MB in the beginning and 28.1MB in the end (delta: 6.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0 de.uni_freiburg.informatik.ultimate.boogie.preprocessor: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0: de.uni_freiburg.informatik.ultimate.boogie.preprocessor.memoryslicer.AliasAnalysis.processJoinStatement(AliasAnalysis.java:175) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: ArrayIndexOutOfBoundsException: Index 0 out of bounds for length 0