./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-data-race.prp --file ../../sv-benchmarks/c/pthread-ext/13_unverif.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/13_unverif.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 13:48:40,046 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 13:48:40,048 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 13:48:40,061 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 13:48:40,061 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 13:48:40,062 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 13:48:40,063 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 13:48:40,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 13:48:40,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 13:48:40,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 13:48:40,066 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 13:48:40,067 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 13:48:40,067 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 13:48:40,068 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 13:48:40,069 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 13:48:40,069 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 13:48:40,070 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 13:48:40,071 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 13:48:40,072 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 13:48:40,073 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 13:48:40,074 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 13:48:40,075 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 13:48:40,076 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 13:48:40,076 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 13:48:40,078 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 13:48:40,079 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 13:48:40,079 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 13:48:40,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 13:48:40,080 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 13:48:40,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 13:48:40,081 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 13:48:40,081 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 13:48:40,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 13:48:40,082 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 13:48:40,083 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 13:48:40,083 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 13:48:40,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 13:48:40,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 13:48:40,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 13:48:40,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 13:48:40,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 13:48:40,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/config/svcomp-DataRace-32bit-Automizer_Default.epf [2022-12-13 13:48:40,100 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 13:48:40,100 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 13:48:40,100 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 13:48:40,101 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 13:48:40,101 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 13:48:40,101 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 13:48:40,102 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 13:48:40,102 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 13:48:40,102 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 13:48:40,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 13:48:40,102 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 13:48:40,102 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 13:48:40,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 13:48:40,103 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 13:48:40,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 13:48:40,104 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 13:48:40,104 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 13:48:40,104 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 13:48:40,104 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:48:40,104 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 13:48:40,104 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 13:48:40,104 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 13:48:40,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 13:48:40,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 13:48:40,105 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 13:48:40,105 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-12-13 13:48:40,105 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 13:48:40,105 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 13:48:40,105 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 13:48:40,105 INFO L138 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:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ea403ebfe777a86c8f08ec54b02dc30e546c8fae743fed5fb0e88129df40ac76 [2022-12-13 13:48:40,263 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 13:48:40,279 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 13:48:40,281 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 13:48:40,282 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 13:48:40,282 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 13:48:40,283 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread-ext/13_unverif.i [2022-12-13 13:48:42,833 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 13:48:42,842 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) [2022-12-13 13:48:43,036 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 13:48:43,036 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/sv-benchmarks/c/pthread-ext/13_unverif.i [2022-12-13 13:48:43,047 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/data/ca0c8cc2b/bcdd1ba3050e4f11be8c9efadb0020ac/FLAGe1593c6bd [2022-12-13 13:48:43,061 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/data/ca0c8cc2b/bcdd1ba3050e4f11be8c9efadb0020ac [2022-12-13 13:48:43,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 13:48:43,065 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 13:48:43,067 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 13:48:43,067 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 13:48:43,070 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 13:48:43,071 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,072 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@abc41f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43, skipping insertion in model container [2022-12-13 13:48:43,073 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 13:48:43,118 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 13:48:43,327 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/sv-benchmarks/c/pthread-ext/13_unverif.i[30213,30226] [2022-12-13 13:48:43,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:48:43,339 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 13:48:43,365 WARN L237 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/sv-benchmarks/c/pthread-ext/13_unverif.i[30213,30226] [2022-12-13 13:48:43,367 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 13:48:43,389 INFO L208 MainTranslator]: Completed translation [2022-12-13 13:48:43,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43 WrapperNode [2022-12-13 13:48:43,389 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 13:48:43,390 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 13:48:43,390 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 13:48:43,390 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 13:48:43,396 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,404 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,418 INFO L138 Inliner]: procedures = 168, calls = 12, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 62 [2022-12-13 13:48:43,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 13:48:43,418 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 13:48:43,418 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 13:48:43,418 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 13:48:43,425 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,425 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,430 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,433 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,434 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,435 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,436 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 13:48:43,437 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 13:48:43,437 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 13:48:43,437 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 13:48:43,438 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (1/1) ... [2022-12-13 13:48:43,443 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 13:48:43,453 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 13:48:43,465 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 13:48:43,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 13:48:43,502 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-12-13 13:48:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-12-13 13:48:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 13:48:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 13:48:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 13:48:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 13:48:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 13:48:43,503 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 13:48:43,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 13:48:43,505 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 13:48:43,609 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 13:48:43,611 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 13:48:43,728 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 13:48:43,790 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 13:48:43,790 INFO L300 CfgBuilder]: Removed 1 assume(true) statements. [2022-12-13 13:48:43,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:43 BoogieIcfgContainer [2022-12-13 13:48:43,792 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 13:48:43,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 13:48:43,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 13:48:43,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 13:48:43,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 01:48:43" (1/3) ... [2022-12-13 13:48:43,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3567e175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:48:43, skipping insertion in model container [2022-12-13 13:48:43,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 01:48:43" (2/3) ... [2022-12-13 13:48:43,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3567e175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 01:48:43, skipping insertion in model container [2022-12-13 13:48:43,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:43" (3/3) ... [2022-12-13 13:48:43,800 INFO L112 eAbstractionObserver]: Analyzing ICFG 13_unverif.i [2022-12-13 13:48:43,809 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-12-13 13:48:43,820 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 13:48:43,820 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 7 error locations. [2022-12-13 13:48:43,820 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 13:48:43,867 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:48:43,903 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2022-12-13 13:48:43,945 INFO L130 PetriNetUnfolder]: 4/71 cut-off events. [2022-12-13 13:48:43,946 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:48:43,950 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2022-12-13 13:48:43,950 INFO L82 GeneralOperation]: Start removeDead. Operand has 60 places, 60 transitions, 125 flow [2022-12-13 13:48:43,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 60 places, 60 transitions, 125 flow [2022-12-13 13:48:43,958 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:48:43,968 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 60 transitions, 125 flow [2022-12-13 13:48:43,971 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 60 transitions, 125 flow [2022-12-13 13:48:43,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 60 places, 60 transitions, 125 flow [2022-12-13 13:48:43,988 INFO L130 PetriNetUnfolder]: 4/71 cut-off events. [2022-12-13 13:48:43,989 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:48:43,989 INFO L83 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 4/71 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 96 event pairs, 0 based on Foata normal form. 0/58 useless extension candidates. Maximal degree in co-relation 43. Up to 4 conditions per place. [2022-12-13 13:48:43,990 INFO L119 LiptonReduction]: Number of co-enabled transitions 840 [2022-12-13 13:48:45,062 INFO L134 LiptonReduction]: Checked pairs total: 782 [2022-12-13 13:48:45,062 INFO L136 LiptonReduction]: Total number of compositions: 64 [2022-12-13 13:48:45,078 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:48:45,084 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7dce84b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:48:45,084 INFO L358 AbstractCegarLoop]: Starting to check reachability of 15 error locations. [2022-12-13 13:48:45,087 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 13:48:45,087 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:48:45,088 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:45,088 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:48:45,089 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-13 13:48:45,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:45,094 INFO L85 PathProgramCache]: Analyzing trace with hash 9482445, now seen corresponding path program 1 times [2022-12-13 13:48:45,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:45,103 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [125133471] [2022-12-13 13:48:45,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:45,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:45,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:45,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:45,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [125133471] [2022-12-13 13:48:45,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [125133471] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:45,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:45,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:48:45,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071500555] [2022-12-13 13:48:45,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:45,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:48:45,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:45,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:48:45,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:48:45,274 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 51 out of 124 [2022-12-13 13:48:45,276 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 18 places, 16 transitions, 37 flow. Second operand has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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) [2022-12-13 13:48:45,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:45,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 51 of 124 [2022-12-13 13:48:45,277 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:45,295 INFO L130 PetriNetUnfolder]: 7/22 cut-off events. [2022-12-13 13:48:45,295 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:48:45,295 INFO L83 FinitePrefix]: Finished finitePrefix Result has 48 conditions, 22 events. 7/22 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 42 event pairs, 4 based on Foata normal form. 0/19 useless extension candidates. Maximal degree in co-relation 31. Up to 19 conditions per place. [2022-12-13 13:48:45,296 INFO L137 encePairwiseOnDemand]: 117/124 looper letters, 7 selfloop transitions, 0 changer transitions 0/9 dead transitions. [2022-12-13 13:48:45,296 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 12 places, 9 transitions, 37 flow [2022-12-13 13:48:45,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:48:45,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:48:45,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 116 transitions. [2022-12-13 13:48:45,305 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.46774193548387094 [2022-12-13 13:48:45,306 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 116 transitions. [2022-12-13 13:48:45,306 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 116 transitions. [2022-12-13 13:48:45,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:45,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 116 transitions. [2022-12-13 13:48:45,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 58.0) internal successors, (116), 2 states have internal predecessors, (116), 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) [2022-12-13 13:48:45,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2022-12-13 13:48:45,313 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 124.0) internal successors, (372), 3 states have internal predecessors, (372), 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) [2022-12-13 13:48:45,314 INFO L175 Difference]: Start difference. First operand has 18 places, 16 transitions, 37 flow. Second operand 2 states and 116 transitions. [2022-12-13 13:48:45,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 12 places, 9 transitions, 37 flow [2022-12-13 13:48:45,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 12 places, 9 transitions, 37 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:48:45,317 INFO L231 Difference]: Finished difference. Result has 12 places, 9 transitions, 23 flow [2022-12-13 13:48:45,319 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=23, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=9, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=9, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=23, PETRI_PLACES=12, PETRI_TRANSITIONS=9} [2022-12-13 13:48:45,322 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, -6 predicate places. [2022-12-13 13:48:45,322 INFO L495 AbstractCegarLoop]: Abstraction has has 12 places, 9 transitions, 23 flow [2022-12-13 13:48:45,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 53.0) internal successors, (106), 2 states have internal predecessors, (106), 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) [2022-12-13 13:48:45,322 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:45,322 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 13:48:45,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 13:48:45,323 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-13 13:48:45,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:45,323 INFO L85 PathProgramCache]: Analyzing trace with hash 293956552, now seen corresponding path program 1 times [2022-12-13 13:48:45,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:45,323 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [436994051] [2022-12-13 13:48:45,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:45,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:45,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:45,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:45,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:45,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [436994051] [2022-12-13 13:48:45,369 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [436994051] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:45,369 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:45,370 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:45,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2065844963] [2022-12-13 13:48:45,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:45,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:45,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:45,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:45,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:45,381 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 124 [2022-12-13 13:48:45,381 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 12 places, 9 transitions, 23 flow. Second operand has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2022-12-13 13:48:45,381 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:45,381 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 124 [2022-12-13 13:48:45,381 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:45,399 INFO L130 PetriNetUnfolder]: 7/20 cut-off events. [2022-12-13 13:48:45,399 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:48:45,399 INFO L83 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 20 events. 7/20 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 32 event pairs, 2 based on Foata normal form. 0/17 useless extension candidates. Maximal degree in co-relation 42. Up to 11 conditions per place. [2022-12-13 13:48:45,399 INFO L137 encePairwiseOnDemand]: 122/124 looper letters, 8 selfloop transitions, 1 changer transitions 0/10 dead transitions. [2022-12-13 13:48:45,400 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 13 places, 10 transitions, 43 flow [2022-12-13 13:48:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:45,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:48:45,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 142 transitions. [2022-12-13 13:48:45,401 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.3817204301075269 [2022-12-13 13:48:45,401 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 142 transitions. [2022-12-13 13:48:45,401 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 142 transitions. [2022-12-13 13:48:45,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:45,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 142 transitions. [2022-12-13 13:48:45,402 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 states have internal predecessors, (142), 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) [2022-12-13 13:48:45,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2022-12-13 13:48:45,403 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 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) [2022-12-13 13:48:45,403 INFO L175 Difference]: Start difference. First operand has 12 places, 9 transitions, 23 flow. Second operand 3 states and 142 transitions. [2022-12-13 13:48:45,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 13 places, 10 transitions, 43 flow [2022-12-13 13:48:45,403 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 13 places, 10 transitions, 43 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:48:45,403 INFO L231 Difference]: Finished difference. Result has 13 places, 8 transitions, 23 flow [2022-12-13 13:48:45,404 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=124, PETRI_DIFFERENCE_MINUEND_FLOW=21, PETRI_DIFFERENCE_MINUEND_PLACES=11, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=8, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=7, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=23, PETRI_PLACES=13, PETRI_TRANSITIONS=8} [2022-12-13 13:48:45,404 INFO L288 CegarLoopForPetriNet]: 18 programPoint places, -5 predicate places. [2022-12-13 13:48:45,404 INFO L495 AbstractCegarLoop]: Abstraction has has 13 places, 8 transitions, 23 flow [2022-12-13 13:48:45,404 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.666666666666664) internal successors, (137), 3 states have internal predecessors, (137), 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) [2022-12-13 13:48:45,404 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:45,404 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2022-12-13 13:48:45,404 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 13:48:45,405 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 11 more)] === [2022-12-13 13:48:45,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:45,405 INFO L85 PathProgramCache]: Analyzing trace with hash 522682838, now seen corresponding path program 1 times [2022-12-13 13:48:45,405 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:45,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362513396] [2022-12-13 13:48:45,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:45,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:45,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:45,419 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:48:45,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:45,438 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:48:45,438 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:48:45,438 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 15 remaining) [2022-12-13 13:48:45,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 15 remaining) [2022-12-13 13:48:45,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 15 remaining) [2022-12-13 13:48:45,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 15 remaining) [2022-12-13 13:48:45,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 15 remaining) [2022-12-13 13:48:45,440 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 15 remaining) [2022-12-13 13:48:45,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 15 remaining) [2022-12-13 13:48:45,442 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 15 remaining) [2022-12-13 13:48:45,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 13:48:45,442 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-12-13 13:48:45,444 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 13:48:45,444 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-12-13 13:48:45,460 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:48:45,462 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 194 flow [2022-12-13 13:48:45,479 INFO L130 PetriNetUnfolder]: 7/115 cut-off events. [2022-12-13 13:48:45,479 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:48:45,480 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 7/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place. [2022-12-13 13:48:45,480 INFO L82 GeneralOperation]: Start removeDead. Operand has 91 places, 91 transitions, 194 flow [2022-12-13 13:48:45,481 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 91 places, 91 transitions, 194 flow [2022-12-13 13:48:45,481 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:48:45,481 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 91 transitions, 194 flow [2022-12-13 13:48:45,481 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 91 transitions, 194 flow [2022-12-13 13:48:45,481 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 91 places, 91 transitions, 194 flow [2022-12-13 13:48:45,492 INFO L130 PetriNetUnfolder]: 7/115 cut-off events. [2022-12-13 13:48:45,492 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-12-13 13:48:45,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 115 events. 7/115 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/91 useless extension candidates. Maximal degree in co-relation 73. Up to 6 conditions per place. [2022-12-13 13:48:45,494 INFO L119 LiptonReduction]: Number of co-enabled transitions 3540 [2022-12-13 13:48:46,217 INFO L134 LiptonReduction]: Checked pairs total: 13268 [2022-12-13 13:48:46,217 INFO L136 LiptonReduction]: Total number of compositions: 51 [2022-12-13 13:48:46,219 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:48:46,219 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7dce84b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:48:46,219 INFO L358 AbstractCegarLoop]: Starting to check reachability of 22 error locations. [2022-12-13 13:48:46,221 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 13:48:46,221 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:48:46,221 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:46,221 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:48:46,221 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-13 13:48:46,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:46,222 INFO L85 PathProgramCache]: Analyzing trace with hash 14890140, now seen corresponding path program 1 times [2022-12-13 13:48:46,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:46,222 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022555457] [2022-12-13 13:48:46,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:46,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:46,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:46,238 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:46,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:46,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022555457] [2022-12-13 13:48:46,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1022555457] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:46,239 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:46,239 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:48:46,239 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364971737] [2022-12-13 13:48:46,239 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:46,239 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:48:46,239 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:46,240 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:48:46,240 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:48:46,240 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 75 out of 142 [2022-12-13 13:48:46,240 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 50 transitions, 112 flow. Second operand has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-12-13 13:48:46,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:46,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 75 of 142 [2022-12-13 13:48:46,241 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:46,302 INFO L130 PetriNetUnfolder]: 89/373 cut-off events. [2022-12-13 13:48:46,302 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-12-13 13:48:46,304 INFO L83 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 373 events. 89/373 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 2078 event pairs, 65 based on Foata normal form. 14/313 useless extension candidates. Maximal degree in co-relation 223. Up to 152 conditions per place. [2022-12-13 13:48:46,306 INFO L137 encePairwiseOnDemand]: 134/142 looper letters, 13 selfloop transitions, 0 changer transitions 0/41 dead transitions. [2022-12-13 13:48:46,307 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 41 transitions, 120 flow [2022-12-13 13:48:46,307 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:48:46,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:48:46,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 171 transitions. [2022-12-13 13:48:46,308 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.602112676056338 [2022-12-13 13:48:46,308 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 171 transitions. [2022-12-13 13:48:46,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 171 transitions. [2022-12-13 13:48:46,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:46,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 171 transitions. [2022-12-13 13:48:46,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 85.5) internal successors, (171), 2 states have internal predecessors, (171), 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) [2022-12-13 13:48:46,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2022-12-13 13:48:46,311 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 142.0) internal successors, (426), 3 states have internal predecessors, (426), 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) [2022-12-13 13:48:46,311 INFO L175 Difference]: Start difference. First operand has 52 places, 50 transitions, 112 flow. Second operand 2 states and 171 transitions. [2022-12-13 13:48:46,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 41 transitions, 120 flow [2022-12-13 13:48:46,312 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 45 places, 41 transitions, 118 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-12-13 13:48:46,313 INFO L231 Difference]: Finished difference. Result has 45 places, 41 transitions, 92 flow [2022-12-13 13:48:46,313 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=92, PETRI_PLACES=45, PETRI_TRANSITIONS=41} [2022-12-13 13:48:46,313 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -7 predicate places. [2022-12-13 13:48:46,313 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 41 transitions, 92 flow [2022-12-13 13:48:46,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 77.0) internal successors, (154), 2 states have internal predecessors, (154), 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) [2022-12-13 13:48:46,313 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:46,313 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:48:46,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 13:48:46,314 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-13 13:48:46,314 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:46,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1424536639, now seen corresponding path program 1 times [2022-12-13 13:48:46,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:46,314 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380142402] [2022-12-13 13:48:46,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:46,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:46,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:46,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:46,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:46,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380142402] [2022-12-13 13:48:46,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380142402] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:46,350 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:46,350 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:46,350 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879323295] [2022-12-13 13:48:46,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:46,351 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:46,351 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:46,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:46,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:46,357 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 142 [2022-12-13 13:48:46,358 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 41 transitions, 92 flow. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2022-12-13 13:48:46,358 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:46,358 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 142 [2022-12-13 13:48:46,358 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:46,449 INFO L130 PetriNetUnfolder]: 212/672 cut-off events. [2022-12-13 13:48:46,449 INFO L131 PetriNetUnfolder]: For 19/19 co-relation queries the response was YES. [2022-12-13 13:48:46,451 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1068 conditions, 672 events. 212/672 cut-off events. For 19/19 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 4282 event pairs, 60 based on Foata normal form. 0/583 useless extension candidates. Maximal degree in co-relation 1063. Up to 292 conditions per place. [2022-12-13 13:48:46,454 INFO L137 encePairwiseOnDemand]: 134/142 looper letters, 28 selfloop transitions, 6 changer transitions 0/56 dead transitions. [2022-12-13 13:48:46,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 56 transitions, 195 flow [2022-12-13 13:48:46,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:46,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:48:46,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 243 transitions. [2022-12-13 13:48:46,457 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5704225352112676 [2022-12-13 13:48:46,457 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 243 transitions. [2022-12-13 13:48:46,457 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 243 transitions. [2022-12-13 13:48:46,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:46,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 243 transitions. [2022-12-13 13:48:46,458 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.0) internal successors, (243), 3 states have internal predecessors, (243), 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) [2022-12-13 13:48:46,459 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-12-13 13:48:46,460 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-12-13 13:48:46,460 INFO L175 Difference]: Start difference. First operand has 45 places, 41 transitions, 92 flow. Second operand 3 states and 243 transitions. [2022-12-13 13:48:46,460 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 56 transitions, 195 flow [2022-12-13 13:48:46,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 56 transitions, 195 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:48:46,462 INFO L231 Difference]: Finished difference. Result has 49 places, 47 transitions, 144 flow [2022-12-13 13:48:46,462 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=92, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=35, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=49, PETRI_TRANSITIONS=47} [2022-12-13 13:48:46,462 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -3 predicate places. [2022-12-13 13:48:46,463 INFO L495 AbstractCegarLoop]: Abstraction has has 49 places, 47 transitions, 144 flow [2022-12-13 13:48:46,463 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 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) [2022-12-13 13:48:46,463 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:46,463 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:46,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 13:48:46,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-13 13:48:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash -200432130, now seen corresponding path program 1 times [2022-12-13 13:48:46,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:46,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435168166] [2022-12-13 13:48:46,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:46,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:46,488 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:46,489 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:46,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435168166] [2022-12-13 13:48:46,489 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [435168166] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:46,489 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:46,489 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:46,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011894524] [2022-12-13 13:48:46,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:46,490 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:46,490 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:46,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:46,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:46,509 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 142 [2022-12-13 13:48:46,509 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 47 transitions, 144 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-12-13 13:48:46,509 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:46,510 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 142 [2022-12-13 13:48:46,510 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:46,637 INFO L130 PetriNetUnfolder]: 525/1109 cut-off events. [2022-12-13 13:48:46,637 INFO L131 PetriNetUnfolder]: For 146/147 co-relation queries the response was YES. [2022-12-13 13:48:46,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2258 conditions, 1109 events. 525/1109 cut-off events. For 146/147 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 6801 event pairs, 155 based on Foata normal form. 0/1072 useless extension candidates. Maximal degree in co-relation 2251. Up to 612 conditions per place. [2022-12-13 13:48:46,642 INFO L137 encePairwiseOnDemand]: 128/142 looper letters, 38 selfloop transitions, 10 changer transitions 0/67 dead transitions. [2022-12-13 13:48:46,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 67 transitions, 293 flow [2022-12-13 13:48:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:46,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:48:46,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 233 transitions. [2022-12-13 13:48:46,643 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5469483568075117 [2022-12-13 13:48:46,643 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 233 transitions. [2022-12-13 13:48:46,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 233 transitions. [2022-12-13 13:48:46,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:46,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 233 transitions. [2022-12-13 13:48:46,644 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:46,645 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-12-13 13:48:46,646 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2022-12-13 13:48:46,646 INFO L175 Difference]: Start difference. First operand has 49 places, 47 transitions, 144 flow. Second operand 3 states and 233 transitions. [2022-12-13 13:48:46,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 67 transitions, 293 flow [2022-12-13 13:48:46,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 49 places, 67 transitions, 277 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:48:46,648 INFO L231 Difference]: Finished difference. Result has 51 places, 57 transitions, 220 flow [2022-12-13 13:48:46,648 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=220, PETRI_PLACES=51, PETRI_TRANSITIONS=57} [2022-12-13 13:48:46,648 INFO L288 CegarLoopForPetriNet]: 52 programPoint places, -1 predicate places. [2022-12-13 13:48:46,649 INFO L495 AbstractCegarLoop]: Abstraction has has 51 places, 57 transitions, 220 flow [2022-12-13 13:48:46,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2022-12-13 13:48:46,649 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:46,649 INFO L209 CegarLoopForPetriNet]: trace histogram [3, 2, 2, 1, 1, 1, 1] [2022-12-13 13:48:46,649 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 13:48:46,649 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 18 more)] === [2022-12-13 13:48:46,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:46,650 INFO L85 PathProgramCache]: Analyzing trace with hash 1359806291, now seen corresponding path program 1 times [2022-12-13 13:48:46,650 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:46,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396627443] [2022-12-13 13:48:46,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:46,650 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:46,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:46,658 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:48:46,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:46,665 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:48:46,666 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:48:46,666 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (21 of 22 remaining) [2022-12-13 13:48:46,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (20 of 22 remaining) [2022-12-13 13:48:46,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (19 of 22 remaining) [2022-12-13 13:48:46,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (18 of 22 remaining) [2022-12-13 13:48:46,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (17 of 22 remaining) [2022-12-13 13:48:46,666 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (16 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (15 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (14 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (13 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (12 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (11 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (10 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 22 remaining) [2022-12-13 13:48:46,667 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 22 remaining) [2022-12-13 13:48:46,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 22 remaining) [2022-12-13 13:48:46,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 22 remaining) [2022-12-13 13:48:46,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 22 remaining) [2022-12-13 13:48:46,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 22 remaining) [2022-12-13 13:48:46,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 22 remaining) [2022-12-13 13:48:46,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 22 remaining) [2022-12-13 13:48:46,668 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 22 remaining) [2022-12-13 13:48:46,668 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-13 13:48:46,669 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 13:48:46,669 WARN L233 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-12-13 13:48:46,669 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-12-13 13:48:46,688 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-12-13 13:48:46,690 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 122 transitions, 265 flow [2022-12-13 13:48:46,700 INFO L130 PetriNetUnfolder]: 10/159 cut-off events. [2022-12-13 13:48:46,700 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 13:48:46,701 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 159 events. 10/159 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 429 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 119. Up to 8 conditions per place. [2022-12-13 13:48:46,701 INFO L82 GeneralOperation]: Start removeDead. Operand has 122 places, 122 transitions, 265 flow [2022-12-13 13:48:46,702 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 122 places, 122 transitions, 265 flow [2022-12-13 13:48:46,702 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 13:48:46,702 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 122 places, 122 transitions, 265 flow [2022-12-13 13:48:46,703 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 122 places, 122 transitions, 265 flow [2022-12-13 13:48:46,703 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 122 places, 122 transitions, 265 flow [2022-12-13 13:48:46,713 INFO L130 PetriNetUnfolder]: 10/159 cut-off events. [2022-12-13 13:48:46,713 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-12-13 13:48:46,714 INFO L83 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 159 events. 10/159 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 429 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 119. Up to 8 conditions per place. [2022-12-13 13:48:46,717 INFO L119 LiptonReduction]: Number of co-enabled transitions 8100 [2022-12-13 13:48:47,501 INFO L134 LiptonReduction]: Checked pairs total: 36616 [2022-12-13 13:48:47,501 INFO L136 LiptonReduction]: Total number of compositions: 70 [2022-12-13 13:48:47,502 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 13:48:47,503 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=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, 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;@7dce84b4, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 13:48:47,503 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-12-13 13:48:47,504 INFO L130 PetriNetUnfolder]: 0/5 cut-off events. [2022-12-13 13:48:47,504 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 13:48:47,504 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:47,504 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2022-12-13 13:48:47,504 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:48:47,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:47,504 INFO L85 PathProgramCache]: Analyzing trace with hash 21755317, now seen corresponding path program 1 times [2022-12-13 13:48:47,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:47,505 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304930033] [2022-12-13 13:48:47,505 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:47,505 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:47,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:47,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:47,515 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:47,515 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304930033] [2022-12-13 13:48:47,515 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304930033] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:47,515 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:47,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 13:48:47,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1046019847] [2022-12-13 13:48:47,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:47,515 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 13:48:47,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:47,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 13:48:47,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 13:48:47,516 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 192 [2022-12-13 13:48:47,517 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 75 transitions, 171 flow. Second operand has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 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) [2022-12-13 13:48:47,517 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:47,517 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 192 [2022-12-13 13:48:47,517 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:47,685 INFO L130 PetriNetUnfolder]: 947/2462 cut-off events. [2022-12-13 13:48:47,685 INFO L131 PetriNetUnfolder]: For 253/253 co-relation queries the response was YES. [2022-12-13 13:48:47,689 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3996 conditions, 2462 events. 947/2462 cut-off events. For 253/253 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 20079 event pairs, 815 based on Foata normal form. 84/2145 useless extension candidates. Maximal degree in co-relation 655. Up to 1318 conditions per place. [2022-12-13 13:48:47,698 INFO L137 encePairwiseOnDemand]: 179/192 looper letters, 19 selfloop transitions, 0 changer transitions 0/60 dead transitions. [2022-12-13 13:48:47,698 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 60 transitions, 179 flow [2022-12-13 13:48:47,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 13:48:47,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 13:48:47,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 230 transitions. [2022-12-13 13:48:47,699 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5989583333333334 [2022-12-13 13:48:47,699 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 230 transitions. [2022-12-13 13:48:47,699 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 230 transitions. [2022-12-13 13:48:47,700 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:47,700 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 230 transitions. [2022-12-13 13:48:47,701 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 115.0) internal successors, (230), 2 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 13:48:47,701 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 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) [2022-12-13 13:48:47,701 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 192.0) internal successors, (576), 3 states have internal predecessors, (576), 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) [2022-12-13 13:48:47,702 INFO L175 Difference]: Start difference. First operand has 76 places, 75 transitions, 171 flow. Second operand 2 states and 230 transitions. [2022-12-13 13:48:47,702 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 60 transitions, 179 flow [2022-12-13 13:48:47,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 60 transitions, 173 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-12-13 13:48:47,703 INFO L231 Difference]: Finished difference. Result has 65 places, 60 transitions, 135 flow [2022-12-13 13:48:47,703 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=135, PETRI_PLACES=65, PETRI_TRANSITIONS=60} [2022-12-13 13:48:47,704 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -11 predicate places. [2022-12-13 13:48:47,704 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 60 transitions, 135 flow [2022-12-13 13:48:47,704 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 101.0) internal successors, (202), 2 states have internal predecessors, (202), 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) [2022-12-13 13:48:47,704 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:47,704 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-13 13:48:47,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-13 13:48:47,705 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:48:47,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:47,705 INFO L85 PathProgramCache]: Analyzing trace with hash -567956359, now seen corresponding path program 1 times [2022-12-13 13:48:47,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:47,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [827960950] [2022-12-13 13:48:47,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:47,705 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:47,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:47,721 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:47,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:47,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [827960950] [2022-12-13 13:48:47,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [827960950] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:47,721 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:47,722 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:47,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353925769] [2022-12-13 13:48:47,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:47,722 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:47,722 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:47,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:47,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:47,730 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 90 out of 192 [2022-12-13 13:48:47,730 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 60 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2022-12-13 13:48:47,730 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:47,730 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 90 of 192 [2022-12-13 13:48:47,730 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:48,228 INFO L130 PetriNetUnfolder]: 3785/7948 cut-off events. [2022-12-13 13:48:48,228 INFO L131 PetriNetUnfolder]: For 255/255 co-relation queries the response was YES. [2022-12-13 13:48:48,245 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13619 conditions, 7948 events. 3785/7948 cut-off events. For 255/255 co-relation queries the response was YES. Maximal size of possible extension queue 440. Compared 69276 event pairs, 1408 based on Foata normal form. 0/7068 useless extension candidates. Maximal degree in co-relation 13613. Up to 4123 conditions per place. [2022-12-13 13:48:48,278 INFO L137 encePairwiseOnDemand]: 180/192 looper letters, 42 selfloop transitions, 9 changer transitions 0/83 dead transitions. [2022-12-13 13:48:48,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 83 transitions, 293 flow [2022-12-13 13:48:48,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:48,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:48:48,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 324 transitions. [2022-12-13 13:48:48,280 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.5625 [2022-12-13 13:48:48,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 324 transitions. [2022-12-13 13:48:48,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 324 transitions. [2022-12-13 13:48:48,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:48,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 324 transitions. [2022-12-13 13:48:48,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 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) [2022-12-13 13:48:48,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-12-13 13:48:48,283 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-12-13 13:48:48,283 INFO L175 Difference]: Start difference. First operand has 65 places, 60 transitions, 135 flow. Second operand 3 states and 324 transitions. [2022-12-13 13:48:48,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 83 transitions, 293 flow [2022-12-13 13:48:48,284 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 83 transitions, 293 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 13:48:48,286 INFO L231 Difference]: Finished difference. Result has 69 places, 69 transitions, 213 flow [2022-12-13 13:48:48,286 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=213, PETRI_PLACES=69, PETRI_TRANSITIONS=69} [2022-12-13 13:48:48,287 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -7 predicate places. [2022-12-13 13:48:48,287 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 69 transitions, 213 flow [2022-12-13 13:48:48,287 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 92.0) internal successors, (276), 3 states have internal predecessors, (276), 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) [2022-12-13 13:48:48,287 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:48,287 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:48,287 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-13 13:48:48,287 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err4ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:48:48,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:48,288 INFO L85 PathProgramCache]: Analyzing trace with hash -2111133039, now seen corresponding path program 1 times [2022-12-13 13:48:48,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:48,288 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2147209315] [2022-12-13 13:48:48,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:48,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 13:48:48,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 13:48:48,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 13:48:48,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2147209315] [2022-12-13 13:48:48,314 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2147209315] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 13:48:48,314 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 13:48:48,314 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 13:48:48,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1684019771] [2022-12-13 13:48:48,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 13:48:48,315 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 13:48:48,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 13:48:48,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 13:48:48,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 13:48:48,338 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 192 [2022-12-13 13:48:48,338 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 69 transitions, 213 flow. Second operand has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-12-13 13:48:48,338 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 13:48:48,338 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 192 [2022-12-13 13:48:48,339 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 13:48:49,675 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([525] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [130#(= |#race~r~0| 0), 38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 60#L699-1true, 136#(= |#race~s~0| 0), 112#L701-1true, Black: 128#true, 39#L709-4true, thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 125#true]) [2022-12-13 13:48:49,675 INFO L383 tUnfolder$Statistics]: this new event has 37 ancestors and is cut-off event [2022-12-13 13:48:49,675 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-12-13 13:48:49,675 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-12-13 13:48:49,675 INFO L386 tUnfolder$Statistics]: existing Event has 29 ancestors and is cut-off event [2022-12-13 13:48:49,724 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([525] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [130#(= |#race~r~0| 0), 38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 60#L699-1true, 136#(= |#race~s~0| 0), Black: 128#true, 39#L709-4true, thr1Thread1of3ForFork0InUse, 6#L701-2true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 125#true]) [2022-12-13 13:48:49,724 INFO L383 tUnfolder$Statistics]: this new event has 38 ancestors and is cut-off event [2022-12-13 13:48:49,724 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-12-13 13:48:49,724 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-12-13 13:48:49,724 INFO L386 tUnfolder$Statistics]: existing Event has 30 ancestors and is cut-off event [2022-12-13 13:48:49,822 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([525] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [60#L699-1true, 130#(= |#race~r~0| 0), 136#(= |#race~s~0| 0), 38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, 112#L701-1true, Black: 128#true, 85#L709-3true, thr1Thread1of3ForFork0InUse, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 125#true]) [2022-12-13 13:48:49,822 INFO L383 tUnfolder$Statistics]: this new event has 40 ancestors and is cut-off event [2022-12-13 13:48:49,822 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-12-13 13:48:49,822 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-12-13 13:48:49,822 INFO L386 tUnfolder$Statistics]: existing Event has 32 ancestors and is cut-off event [2022-12-13 13:48:49,853 INFO L381 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([525] L701-6-->L699-1: Formula: (= |v_#race~s~0_1| 0) InVars {} OutVars{#race~s~0=|v_#race~s~0_1|} AuxVars[] AssignedVars[#race~s~0][70], [130#(= |#race~r~0| 0), 60#L699-1true, 136#(= |#race~s~0| 0), 38#thr1Err3ASSERT_VIOLATIONDATA_RACEtrue, Black: 128#true, 85#L709-3true, thr1Thread1of3ForFork0InUse, 6#L701-2true, thr1Thread2of3ForFork0InUse, thr1Thread3of3ForFork0InUse, 125#true]) [2022-12-13 13:48:49,853 INFO L383 tUnfolder$Statistics]: this new event has 41 ancestors and is cut-off event [2022-12-13 13:48:49,853 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-12-13 13:48:49,853 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-12-13 13:48:49,853 INFO L386 tUnfolder$Statistics]: existing Event has 33 ancestors and is cut-off event [2022-12-13 13:48:49,942 INFO L130 PetriNetUnfolder]: 14372/25170 cut-off events. [2022-12-13 13:48:49,942 INFO L131 PetriNetUnfolder]: For 4527/4562 co-relation queries the response was YES. [2022-12-13 13:48:49,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 51196 conditions, 25170 events. 14372/25170 cut-off events. For 4527/4562 co-relation queries the response was YES. Maximal size of possible extension queue 1108. Compared 219307 event pairs, 4520 based on Foata normal form. 1/23715 useless extension candidates. Maximal degree in co-relation 51188. Up to 14524 conditions per place. [2022-12-13 13:48:50,061 INFO L137 encePairwiseOnDemand]: 171/192 looper letters, 57 selfloop transitions, 15 changer transitions 0/101 dead transitions. [2022-12-13 13:48:50,061 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 101 transitions, 449 flow [2022-12-13 13:48:50,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 13:48:50,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 13:48:50,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 306 transitions. [2022-12-13 13:48:50,062 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.53125 [2022-12-13 13:48:50,062 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 306 transitions. [2022-12-13 13:48:50,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 306 transitions. [2022-12-13 13:48:50,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 13:48:50,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 306 transitions. [2022-12-13 13:48:50,063 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 102.0) internal successors, (306), 3 states have internal predecessors, (306), 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) [2022-12-13 13:48:50,064 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-12-13 13:48:50,064 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 192.0) internal successors, (768), 4 states have internal predecessors, (768), 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) [2022-12-13 13:48:50,064 INFO L175 Difference]: Start difference. First operand has 69 places, 69 transitions, 213 flow. Second operand 3 states and 306 transitions. [2022-12-13 13:48:50,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 101 transitions, 449 flow [2022-12-13 13:48:50,069 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 101 transitions, 425 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 13:48:50,070 INFO L231 Difference]: Finished difference. Result has 71 places, 84 transitions, 327 flow [2022-12-13 13:48:50,070 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=192, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=71, PETRI_TRANSITIONS=84} [2022-12-13 13:48:50,071 INFO L288 CegarLoopForPetriNet]: 76 programPoint places, -5 predicate places. [2022-12-13 13:48:50,071 INFO L495 AbstractCegarLoop]: Abstraction has has 71 places, 84 transitions, 327 flow [2022-12-13 13:48:50,071 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 80.0) internal successors, (240), 3 states have internal predecessors, (240), 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) [2022-12-13 13:48:50,071 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 13:48:50,071 INFO L209 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 13:48:50,071 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-12-13 13:48:50,071 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr1Err0ASSERT_VIOLATIONDATA_RACE, thr1Err1ASSERT_VIOLATIONDATA_RACE, thr1Err2ASSERT_VIOLATIONDATA_RACE, thr1Err3ASSERT_VIOLATIONDATA_RACE (and 25 more)] === [2022-12-13 13:48:50,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 13:48:50,072 INFO L85 PathProgramCache]: Analyzing trace with hash -692134073, now seen corresponding path program 1 times [2022-12-13 13:48:50,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 13:48:50,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603332881] [2022-12-13 13:48:50,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 13:48:50,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 13:48:50,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:50,081 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 13:48:50,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 13:48:50,120 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 13:48:50,120 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 13:48:50,120 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr1Err3ASSERT_VIOLATIONDATA_RACE (28 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (27 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (26 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (25 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (24 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (23 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (22 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (21 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (20 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (19 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (18 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (17 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (16 of 29 remaining) [2022-12-13 13:48:50,121 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (15 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (14 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (13 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (12 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (11 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (10 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (9 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (8 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (7 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (3 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (2 of 29 remaining) [2022-12-13 13:48:50,122 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 29 remaining) [2022-12-13 13:48:50,123 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 29 remaining) [2022-12-13 13:48:50,123 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-12-13 13:48:50,123 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 13:48:50,126 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2022-12-13 13:48:50,126 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 13:48:50,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 01:48:50 BasicIcfg [2022-12-13 13:48:50,150 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 13:48:50,150 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 13:48:50,151 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 13:48:50,151 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 13:48:50,151 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 01:48:43" (3/4) ... [2022-12-13 13:48:50,153 INFO L140 WitnessPrinter]: No result that supports witness generation found [2022-12-13 13:48:50,153 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 13:48:50,154 INFO L158 Benchmark]: Toolchain (without parser) took 7088.70ms. Allocated memory was 153.1MB in the beginning and 421.5MB in the end (delta: 268.4MB). Free memory was 118.0MB in the beginning and 249.9MB in the end (delta: -131.9MB). Peak memory consumption was 138.4MB. Max. memory is 16.1GB. [2022-12-13 13:48:50,154 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:48:50,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 323.13ms. Allocated memory is still 153.1MB. Free memory was 118.0MB in the beginning and 98.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2022-12-13 13:48:50,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.73ms. Allocated memory is still 153.1MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:48:50,154 INFO L158 Benchmark]: Boogie Preprocessor took 17.96ms. Allocated memory is still 153.1MB. Free memory was 96.3MB in the beginning and 95.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 13:48:50,155 INFO L158 Benchmark]: RCFGBuilder took 355.22ms. Allocated memory is still 153.1MB. Free memory was 95.0MB in the beginning and 80.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2022-12-13 13:48:50,155 INFO L158 Benchmark]: TraceAbstraction took 6356.18ms. Allocated memory was 153.1MB in the beginning and 421.5MB in the end (delta: 268.4MB). Free memory was 79.5MB in the beginning and 250.9MB in the end (delta: -171.4MB). Peak memory consumption was 247.4MB. Max. memory is 16.1GB. [2022-12-13 13:48:50,155 INFO L158 Benchmark]: Witness Printer took 3.02ms. Allocated memory is still 421.5MB. Free memory was 250.9MB in the beginning and 249.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 13:48:50,156 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 113.2MB. Free memory is still 53.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 323.13ms. Allocated memory is still 153.1MB. Free memory was 118.0MB in the beginning and 98.4MB in the end (delta: 19.6MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 27.73ms. Allocated memory is still 153.1MB. Free memory was 98.4MB in the beginning and 96.3MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 17.96ms. Allocated memory is still 153.1MB. Free memory was 96.3MB in the beginning and 95.0MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 355.22ms. Allocated memory is still 153.1MB. Free memory was 95.0MB in the beginning and 80.3MB in the end (delta: 14.7MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 6356.18ms. Allocated memory was 153.1MB in the beginning and 421.5MB in the end (delta: 268.4MB). Free memory was 79.5MB in the beginning and 250.9MB in the end (delta: -171.4MB). Peak memory consumption was 247.4MB. Max. memory is 16.1GB. * Witness Printer took 3.02ms. Allocated memory is still 421.5MB. Free memory was 250.9MB in the beginning and 249.9MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.1s, 60 PlacesBefore, 18 PlacesAfterwards, 60 TransitionsBefore, 16 TransitionsAfterwards, 840 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 2 ChoiceCompositions, 64 TotalNumberOfCompositions, 782 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 782, independent: 782, independent conditional: 0, independent unconditional: 782, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 432, independent: 432, independent conditional: 0, independent unconditional: 432, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 782, independent: 350, independent conditional: 0, independent unconditional: 350, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 432, unknown conditional: 0, unknown unconditional: 432] , Statistics on independence cache: Total cache size (in pairs): 10, Positive cache size: 10, Positive conditional cache size: 0, Positive unconditional cache size: 10, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.7s, 91 PlacesBefore, 52 PlacesAfterwards, 91 TransitionsBefore, 50 TransitionsAfterwards, 3540 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 51 TotalNumberOfCompositions, 13268 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 6114, independent: 5757, independent conditional: 0, independent unconditional: 5757, dependent: 357, dependent conditional: 0, dependent unconditional: 357, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1661, independent: 1602, independent conditional: 0, independent unconditional: 1602, dependent: 59, dependent conditional: 0, dependent unconditional: 59, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 6114, independent: 4155, independent conditional: 0, independent unconditional: 4155, dependent: 298, dependent conditional: 0, dependent unconditional: 298, unknown: 1661, unknown conditional: 0, unknown unconditional: 1661] , Statistics on independence cache: Total cache size (in pairs): 384, Positive cache size: 348, Positive conditional cache size: 0, Positive unconditional cache size: 348, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.8s, 122 PlacesBefore, 76 PlacesAfterwards, 122 TransitionsBefore, 75 TransitionsAfterwards, 8100 CoEnabledTransitionPairs, 5 FixpointIterations, 14 TrivialSequentialCompositions, 50 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 1 ChoiceCompositions, 70 TotalNumberOfCompositions, 36616 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 10700, independent: 10140, independent conditional: 0, independent unconditional: 10140, dependent: 560, dependent conditional: 0, dependent unconditional: 560, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 3392, independent: 3296, independent conditional: 0, independent unconditional: 3296, dependent: 96, dependent conditional: 0, dependent unconditional: 96, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 10700, independent: 6844, independent conditional: 0, independent unconditional: 6844, dependent: 464, dependent conditional: 0, dependent unconditional: 464, unknown: 3392, unknown conditional: 0, unknown unconditional: 3392] , Statistics on independence cache: Total cache size (in pairs): 705, Positive cache size: 640, Positive conditional cache size: 0, Positive unconditional cache size: 640, Negative cache size: 65, Negative conditional cache size: 0, Negative unconditional cache size: 65, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 698]: Data race detected Data race detected The following path leads to a data race: [L688] 0 unsigned int r = 0; [L689] 0 unsigned int s = 0; [L707] 0 pthread_t t; VAL [r=0, s=0, t={3:0}] [L708] COND TRUE 0 1 [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [pthread_create(&t, 0, thr1, 0)=-2, r=0, s=0, t={3:0}] [L708] COND TRUE 0 1 [L696] 1 unsigned int l = 0; [L697] CALL 1 __VERIFIER_atomic_inc_r() [L692] EXPR 1 r!=-1 [L692] CALL 1 assume_abort_if_not(r!=-1) [L3] COND FALSE 1 !(!cond) [L692] RET 1 assume_abort_if_not(r!=-1) [L693] EXPR 1 r + 1 [L693] 1 r = r + 1 [L697] RET 1 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=1, s=0] [L709] FCALL, FORK 0 pthread_create(&t, 0, thr1, 0) VAL [pthread_create(&t, 0, thr1, 0)=-1, r=1, s=0, t={3:0}] [L696] 2 unsigned int l = 0; [L697] CALL 2 __VERIFIER_atomic_inc_r() [L692] EXPR 2 r!=-1 [L692] CALL 2 assume_abort_if_not(r!=-1) [L3] COND FALSE 2 !(!cond) [L692] RET 2 assume_abort_if_not(r!=-1) [L693] EXPR 2 r + 1 [L693] 2 r = r + 1 [L697] RET 2 __VERIFIER_atomic_inc_r() [L698] 1 r == 1 VAL [arg={0:0}, arg={0:0}, l=0, r=2, s=0] Now there is a data race on ~r~0 between C: r = r + 1 [693] and C: r == 1 [698] - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 87 locations, 15 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: 1.5s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 24 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 6 mSDsluCounter, 9 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 9 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, InterpolantAutomatonStates: 5, 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, 0.1s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 9 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 116 locations, 22 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: 1.2s, OverallIterations: 4, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 75 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 31 mSDsluCounter, 26 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 20 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 103 IncrementalHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 20 mSolverCounterUnsat, 26 mSDtfsCounter, 103 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=220occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 145 locations, 29 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: 3.4s, OverallIterations: 4, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 94 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 52 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 38 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 149 IncrementalHoareTripleChecker+Invalid, 187 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 38 mSolverCounterUnsat, 18 mSDtfsCounter, 149 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=327occurred in iteration=3, InterpolantAutomatonStates: 8, 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, 0.0s InterpolantComputationTime, 30 NumberOfCodeBlocks, 30 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 20 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-13 13:48:50,194 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_43272dd8-73f6-4f25-859a-b4751a78467e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE