./Ultimate.py --spec /storage/repos/ultimate/trunk/examples/svcomp/properties/no-data-race.prp --file /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version efd9311c Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:48:27,851 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:48:27,853 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:48:27,878 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:48:27,880 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:48:27,881 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:48:27,884 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:48:27,889 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:48:27,890 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:48:27,894 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:48:27,895 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:48:27,896 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:48:27,897 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:48:27,898 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:48:27,900 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:48:27,901 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:48:27,901 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:48:27,903 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:48:27,906 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:48:27,909 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:48:27,910 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:48:27,911 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:48:27,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:48:27,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:48:27,914 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:48:27,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:48:27,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:48:27,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:48:27,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:48:27,918 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:48:27,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:48:27,919 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:48:27,920 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:48:27,921 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:48:27,921 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:48:27,922 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:48:27,922 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:48:27,922 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:48:27,922 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:48:27,923 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:48:27,923 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:48:27,924 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:48:27,926 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:48:27,953 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:48:27,954 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:48:27,954 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:48:27,954 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:48:27,955 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:48:27,955 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:48:27,955 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:48:27,955 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:48:27,955 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:48:27,956 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:48:27,956 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:48:27,956 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:48:27,957 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:48:27,957 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:48:27,957 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:48:27,957 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:48:27,957 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:48:27,957 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:48:27,958 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:48:27,959 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:48:27,959 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:48:27,960 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:48:27,960 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:48:27,960 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:48:27,960 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:48:27,960 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:48:27,960 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:48:27,960 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:48:27,961 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:48:27,961 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:48:27,961 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:48:27,961 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:48:27,961 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:48:27,961 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:48:27,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:48:27,962 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:48:27,962 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:48:27,962 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:48:27,962 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:48:27,962 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:48:27,962 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:48:27,963 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:48:27,963 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:48:27,963 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 [2022-04-18 18:48:28,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:48:28,169 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:48:28,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:48:28,172 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:48:28,172 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:48:28,173 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2022-04-18 18:48:28,226 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac86e89f7/51b19e75a52b428ba67e590a3fd8313e/FLAGee84562d3 [2022-04-18 18:48:28,742 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:48:28,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2022-04-18 18:48:28,764 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac86e89f7/51b19e75a52b428ba67e590a3fd8313e/FLAGee84562d3 [2022-04-18 18:48:29,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/ac86e89f7/51b19e75a52b428ba67e590a3fd8313e [2022-04-18 18:48:29,214 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:48:29,215 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:48:29,216 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:48:29,216 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:48:29,218 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:48:29,219 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:29,220 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69f89f5f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29, skipping insertion in model container [2022-04-18 18:48:29,220 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:29,225 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:48:29,272 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:48:29,689 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-04-18 18:48:29,711 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-04-18 18:48:29,714 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-04-18 18:48:29,724 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:48:29,730 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:48:29,778 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-04-18 18:48:29,803 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-04-18 18:48:29,811 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-04-18 18:48:29,832 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:48:29,934 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:48:29,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29 WrapperNode [2022-04-18 18:48:29,935 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:48:29,936 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:48:29,936 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:48:29,936 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:48:29,942 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:29,998 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,084 INFO L137 Inliner]: procedures = 489, calls = 128, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3207 [2022-04-18 18:48:30,084 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:48:30,085 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:48:30,085 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:48:30,085 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:48:30,090 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,091 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,263 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,280 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:48:30,281 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:48:30,281 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:48:30,281 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:48:30,282 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (1/1) ... [2022-04-18 18:48:30,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:48:30,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:48:30,308 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:48:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-04-18 18:48:30,333 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-04-18 18:48:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 18:48:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:48:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 18:48:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:48:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:48:30,333 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:48:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:48:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:48:30,334 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:48:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:48:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:48:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:48:30,334 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:48:30,336 WARN L208 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:48:30,324 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:48:30,616 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:48:30,617 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:48:32,770 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:48:33,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:48:33,547 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-04-18 18:48:33,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:48:33 BoogieIcfgContainer [2022-04-18 18:48:33,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:48:33,551 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:48:33,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:48:33,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:48:33,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:48:29" (1/3) ... [2022-04-18 18:48:33,554 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac52ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:48:33, skipping insertion in model container [2022-04-18 18:48:33,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:29" (2/3) ... [2022-04-18 18:48:33,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ac52ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:48:33, skipping insertion in model container [2022-04-18 18:48:33,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:48:33" (3/3) ... [2022-04-18 18:48:33,556 INFO L111 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-1.i [2022-04-18 18:48:33,559 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:48:33,559 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:48:33,559 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 258 error locations. [2022-04-18 18:48:33,559 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:48:33,686 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:48:33,713 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:48:33,717 INFO L340 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=FINITE_AUTOMATA, 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 [2022-04-18 18:48:33,718 INFO L341 AbstractCegarLoop]: Starting to check reachability of 281 error locations. [2022-04-18 18:48:33,739 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:48:33,746 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2392 places, 2441 transitions, 4890 flow [2022-04-18 18:48:33,748 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 2392 places, 2441 transitions, 4890 flow [2022-04-18 18:48:33,749 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2392 places, 2441 transitions, 4890 flow [2022-04-18 18:48:35,007 INFO L129 PetriNetUnfolder]: 97/4537 cut-off events. [2022-04-18 18:48:35,008 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:48:35,070 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4543 conditions, 4537 events. 97/4537 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 23592 event pairs, 0 based on Foata normal form. 0/3951 useless extension candidates. Maximal degree in co-relation 2315. Up to 10 conditions per place. [2022-04-18 18:48:35,250 INFO L116 LiptonReduction]: Number of co-enabled transitions 899656 [2022-04-18 18:48:50,441 WARN L232 SmtUtils]: Spent 10.50s on a formula simplification. DAG size of input: 124 DAG size of output: 112 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:49:05,703 WARN L232 SmtUtils]: Spent 10.63s on a formula simplification. DAG size of input: 128 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:49:11,426 WARN L232 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 114 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:50:02,447 WARN L230 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2022-04-18 18:50:02,448 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:139) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.checkImplication(TransFormulaUtils.java:1154) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.performInclusionCheck(SemanticIndependenceRelation.java:197) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.containsLBool(SemanticIndependenceRelation.java:145) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:123) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.independencerelation.SemanticIndependenceRelation.contains(SemanticIndependenceRelation.java:1) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.lambda$2(UnionIndependenceRelation.java:70) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.Spliterators$ArraySpliterator.tryAdvance(Spliterators.java:958) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.anyMatch(ReferencePipeline.java:528) at de.uni_freiburg.informatik.ultimate.automata.partialorder.UnionIndependenceRelation.contains(UnionIndependenceRelation.java:70) at de.uni_freiburg.informatik.ultimate.automata.partialorder.CachedIndependenceRelation.contains(CachedIndependenceRelation.java:120) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.lambda$1(LiptonReduction.java:465) at java.base/java.util.stream.MatchOps$1MatchSink.accept(MatchOps.java:90) at java.base/java.util.HashMap$KeySpliterator.tryAdvance(HashMap.java:1624) at java.base/java.util.stream.ReferencePipeline.forEachWithCancel(ReferencePipeline.java:127) at java.base/java.util.stream.AbstractPipeline.copyIntoWithCancel(AbstractPipeline.java:502) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:488) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:230) at java.base/java.util.stream.MatchOps$MatchOp.evaluateSequential(MatchOps.java:196) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.allMatch(ReferencePipeline.java:533) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.isRightMover(LiptonReduction.java:465) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRuleCheck(LiptonReduction.java:408) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.sequenceRule(LiptonReduction.java:310) at de.uni_freiburg.informatik.ultimate.automata.partialorder.LiptonReduction.(LiptonReduction.java:126) at de.uni_freiburg.informatik.ultimate.lib.tracecheckutils.petrinetlbe.PetriNetLargeBlockEncoding.(PetriNetLargeBlockEncoding.java:133) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.getInitialAbstraction(BasicCegarLoop.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.computeInitialAbstraction(AbstractCegarLoop.java:367) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:331) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:411) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:301) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:172) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:153) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1465) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:658) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:239) ... 60 more [2022-04-18 18:50:02,454 INFO L158 Benchmark]: Toolchain (without parser) took 93239.63ms. Allocated memory was 102.8MB in the beginning and 713.0MB in the end (delta: 610.3MB). Free memory was 64.9MB in the beginning and 428.2MB in the end (delta: -363.4MB). Peak memory consumption was 476.1MB. Max. memory is 16.1GB. [2022-04-18 18:50:02,455 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:50:02,455 INFO L158 Benchmark]: CACSL2BoogieTranslator took 719.57ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 64.7MB in the beginning and 82.9MB in the end (delta: -18.3MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2022-04-18 18:50:02,456 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.44ms. Allocated memory is still 123.7MB. Free memory was 82.9MB in the beginning and 56.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2022-04-18 18:50:02,456 INFO L158 Benchmark]: Boogie Preprocessor took 195.72ms. Allocated memory is still 123.7MB. Free memory was 56.9MB in the beginning and 56.2MB in the end (delta: 737.2kB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. [2022-04-18 18:50:02,456 INFO L158 Benchmark]: RCFGBuilder took 3269.19ms. Allocated memory was 123.7MB in the beginning and 356.5MB in the end (delta: 232.8MB). Free memory was 56.2MB in the beginning and 204.3MB in the end (delta: -148.1MB). Peak memory consumption was 146.5MB. Max. memory is 16.1GB. [2022-04-18 18:50:02,457 INFO L158 Benchmark]: TraceAbstraction took 88902.28ms. Allocated memory was 356.5MB in the beginning and 713.0MB in the end (delta: 356.5MB). Free memory was 204.3MB in the beginning and 428.2MB in the end (delta: -223.9MB). Peak memory consumption was 361.3MB. Max. memory is 16.1GB. [2022-04-18 18:50:02,452 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2022-04-18 18:50:02,466 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 102.8MB. Free memory is still 56.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 719.57ms. Allocated memory was 102.8MB in the beginning and 123.7MB in the end (delta: 21.0MB). Free memory was 64.7MB in the beginning and 82.9MB in the end (delta: -18.3MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 148.44ms. Allocated memory is still 123.7MB. Free memory was 82.9MB in the beginning and 56.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 195.72ms. Allocated memory is still 123.7MB. Free memory was 56.9MB in the beginning and 56.2MB in the end (delta: 737.2kB). Peak memory consumption was 15.1MB. Max. memory is 16.1GB. * RCFGBuilder took 3269.19ms. Allocated memory was 123.7MB in the beginning and 356.5MB in the end (delta: 232.8MB). Free memory was 56.2MB in the beginning and 204.3MB in the end (delta: -148.1MB). Peak memory consumption was 146.5MB. Max. memory is 16.1GB. * TraceAbstraction took 88902.28ms. Allocated memory was 356.5MB in the beginning and 713.0MB in the end (delta: 356.5MB). Free memory was 204.3MB in the beginning and 428.2MB in the end (delta: -223.9MB). Peak memory consumption was 361.3MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:243) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:50:03,948 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:50:03,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:50:03,968 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:50:03,969 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:50:03,969 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:50:03,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:50:03,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:50:03,973 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:50:03,973 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:50:03,974 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:50:03,975 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:50:03,975 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:50:03,976 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:50:03,977 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:50:03,978 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:50:03,978 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:50:03,979 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:50:03,980 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:50:03,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:50:03,983 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:50:03,984 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:50:03,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:50:03,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:50:03,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:50:03,987 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:50:03,988 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:50:03,988 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:50:03,988 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:50:03,989 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:50:03,989 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:50:03,990 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:50:03,990 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:50:03,991 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:50:03,991 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:50:03,992 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:50:03,992 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:50:03,993 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:50:03,993 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:50:03,993 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:50:03,994 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:50:04,002 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:50:04,002 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2022-04-18 18:50:04,022 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:50:04,022 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:50:04,022 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:50:04,023 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:50:04,023 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:50:04,023 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:50:04,023 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:50:04,024 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:50:04,024 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:50:04,024 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:50:04,024 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:50:04,024 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:50:04,025 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:50:04,025 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:50:04,025 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:50:04,025 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:50:04,025 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:50:04,025 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:50:04,026 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:50:04,026 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:50:04,026 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:50:04,026 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-04-18 18:50:04,026 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-04-18 18:50:04,026 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:50:04,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:50:04,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:50:04,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:50:04,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:50:04,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 18:50:04,027 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:50:04,027 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:50:04,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:50:04,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:50:04,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:50:04,028 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-04-18 18:50:04,028 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-04-18 18:50:04,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:50:04,029 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:50:04,029 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:50:04,029 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3a1634bb3c8fd20e3116589f39b7439eb06d3d5864b5afee415eff1cf39cd7c4 [2022-04-18 18:50:04,265 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:50:04,286 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:50:04,288 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:50:04,289 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:50:04,290 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:50:04,291 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2022-04-18 18:50:04,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/71c07ebf8/4f80ee822f59458cbb812154b6317997/FLAGe9e840c5d [2022-04-18 18:50:04,795 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:50:04,796 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i [2022-04-18 18:50:04,810 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/71c07ebf8/4f80ee822f59458cbb812154b6317997/FLAGe9e840c5d [2022-04-18 18:50:05,148 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/71c07ebf8/4f80ee822f59458cbb812154b6317997 [2022-04-18 18:50:05,150 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:50:05,152 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:50:05,153 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:50:05,153 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:50:05,156 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:50:05,156 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:50:05" (1/1) ... [2022-04-18 18:50:05,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@50e7fde and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:05, skipping insertion in model container [2022-04-18 18:50:05,157 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:50:05" (1/1) ... [2022-04-18 18:50:05,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:50:05,209 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:50:05,752 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-04-18 18:50:05,777 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-04-18 18:50:05,784 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-04-18 18:50:05,799 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:50:05,816 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:50:05,874 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[76469,76482] [2022-04-18 18:50:05,906 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79042,79055] [2022-04-18 18:50:05,930 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-1.i[79451,79464] [2022-04-18 18:50:05,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:50:06,057 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:50:06,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06 WrapperNode [2022-04-18 18:50:06,058 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:50:06,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:50:06,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:50:06,059 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:50:06,063 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,109 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,235 INFO L137 Inliner]: procedures = 493, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3120 [2022-04-18 18:50:06,236 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:50:06,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:50:06,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:50:06,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:50:06,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,275 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,277 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,408 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,421 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,438 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:50:06,439 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:50:06,439 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:50:06,439 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:50:06,440 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (1/1) ... [2022-04-18 18:50:06,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:50:06,473 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:50:06,482 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-04-18 18:50:06,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-04-18 18:50:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-04-18 18:50:06,506 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-04-18 18:50:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 18:50:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:50:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-04-18 18:50:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-04-18 18:50:06,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:50:06,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:50:06,507 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-04-18 18:50:06,509 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-04-18 18:50:06,746 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:50:06,747 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:50:10,056 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:50:10,935 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:50:10,936 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-04-18 18:50:10,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:50:10 BoogieIcfgContainer [2022-04-18 18:50:10,955 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:50:10,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:50:10,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:50:10,959 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:50:10,959 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:50:05" (1/3) ... [2022-04-18 18:50:10,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1771eafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:50:10, skipping insertion in model container [2022-04-18 18:50:10,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:50:06" (2/3) ... [2022-04-18 18:50:10,960 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1771eafe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:50:10, skipping insertion in model container [2022-04-18 18:50:10,960 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:50:10" (3/3) ... [2022-04-18 18:50:10,961 INFO L111 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-1.i [2022-04-18 18:50:10,964 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:50:10,964 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:50:10,965 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-04-18 18:50:10,965 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:50:11,130 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:50:11,160 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:50:11,164 INFO L340 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=FINITE_AUTOMATA, 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 [2022-04-18 18:50:11,164 INFO L341 AbstractCegarLoop]: Starting to check reachability of 279 error locations. [2022-04-18 18:50:11,190 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:50:11,199 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2303 places, 2344 transitions, 4696 flow [2022-04-18 18:50:11,201 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 2303 places, 2344 transitions, 4696 flow [2022-04-18 18:50:11,202 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2303 places, 2344 transitions, 4696 flow [2022-04-18 18:50:12,234 INFO L129 PetriNetUnfolder]: 81/4348 cut-off events. [2022-04-18 18:50:12,234 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:50:12,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4354 conditions, 4348 events. 81/4348 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 26. Compared 22599 event pairs, 0 based on Foata normal form. 0/3782 useless extension candidates. Maximal degree in co-relation 2219. Up to 4 conditions per place. [2022-04-18 18:50:12,482 INFO L116 LiptonReduction]: Number of co-enabled transitions 844200 [2022-04-18 18:50:21,704 WARN L232 SmtUtils]: Spent 7.30s on a formula simplification. DAG size of input: 136 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:50:34,015 WARN L232 SmtUtils]: Spent 9.62s on a formula simplification. DAG size of input: 140 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:50:49,628 WARN L232 SmtUtils]: Spent 8.26s on a formula simplification. DAG size of input: 138 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:51:05,711 WARN L232 SmtUtils]: Spent 11.49s on a formula simplification. DAG size of input: 141 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:51:10,906 WARN L232 SmtUtils]: Spent 5.19s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:51:26,750 WARN L232 SmtUtils]: Spent 9.38s on a formula simplification. DAG size of input: 137 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:51:32,070 WARN L232 SmtUtils]: Spent 5.32s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:51:42,357 WARN L232 SmtUtils]: Spent 10.28s on a formula simplification. DAG size of input: 143 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:52:02,619 WARN L232 SmtUtils]: Spent 7.07s on a formula simplification. DAG size of input: 138 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:52:15,800 WARN L232 SmtUtils]: Spent 9.72s on a formula simplification. DAG size of input: 144 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:52:20,844 WARN L232 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:52:35,854 WARN L232 SmtUtils]: Spent 9.56s on a formula simplification. DAG size of input: 138 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:52:40,891 WARN L232 SmtUtils]: Spent 5.04s on a formula simplification that was a NOOP. DAG size: 120 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:52:51,447 WARN L232 SmtUtils]: Spent 10.55s on a formula simplification. DAG size of input: 141 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:53:52,938 WARN L232 SmtUtils]: Spent 14.63s on a formula simplification. DAG size of input: 134 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:54:11,206 WARN L232 SmtUtils]: Spent 13.38s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:54:17,531 WARN L232 SmtUtils]: Spent 6.32s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:55:14,676 WARN L232 SmtUtils]: Spent 11.28s on a formula simplification. DAG size of input: 136 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:55:31,342 WARN L232 SmtUtils]: Spent 11.88s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:55:38,681 WARN L232 SmtUtils]: Spent 7.34s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:56:00,506 WARN L232 SmtUtils]: Spent 10.42s on a formula simplification. DAG size of input: 136 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:56:16,293 WARN L232 SmtUtils]: Spent 12.14s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:56:22,715 WARN L232 SmtUtils]: Spent 6.42s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:56:45,741 WARN L232 SmtUtils]: Spent 9.76s on a formula simplification. DAG size of input: 140 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:57:05,022 WARN L232 SmtUtils]: Spent 14.53s on a formula simplification. DAG size of input: 142 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:57:12,068 WARN L232 SmtUtils]: Spent 7.05s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:57:24,886 WARN L232 SmtUtils]: Spent 8.70s on a formula simplification. DAG size of input: 137 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:57:41,866 WARN L232 SmtUtils]: Spent 12.55s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:57:48,085 WARN L232 SmtUtils]: Spent 6.22s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:58:27,544 WARN L232 SmtUtils]: Spent 10.32s on a formula simplification. DAG size of input: 137 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:58:41,655 WARN L232 SmtUtils]: Spent 9.92s on a formula simplification. DAG size of input: 142 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:58:54,077 WARN L232 SmtUtils]: Spent 7.42s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:59:09,246 WARN L232 SmtUtils]: Spent 10.98s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:59:25,098 WARN L232 SmtUtils]: Spent 10.27s on a formula simplification. DAG size of input: 134 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:59:40,336 WARN L232 SmtUtils]: Spent 11.27s on a formula simplification. DAG size of input: 140 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:59:46,462 WARN L232 SmtUtils]: Spent 6.12s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:00:04,380 WARN L232 SmtUtils]: Spent 9.17s on a formula simplification. DAG size of input: 140 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:00:22,056 WARN L232 SmtUtils]: Spent 13.34s on a formula simplification. DAG size of input: 143 DAG size of output: 120 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:00:28,957 WARN L232 SmtUtils]: Spent 6.90s on a formula simplification that was a NOOP. DAG size: 124 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:09,263 WARN L232 SmtUtils]: Spent 10.12s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:28,130 WARN L232 SmtUtils]: Spent 14.38s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:33,574 WARN L232 SmtUtils]: Spent 5.44s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:01:57,977 WARN L232 SmtUtils]: Spent 10.84s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:02:18,763 WARN L232 SmtUtils]: Spent 15.90s on a formula simplification. DAG size of input: 139 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:02:24,818 WARN L232 SmtUtils]: Spent 6.05s on a formula simplification that was a NOOP. DAG size: 119 (called from [L 316] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:02:43,673 WARN L232 SmtUtils]: Spent 12.70s on a formula simplification. DAG size of input: 135 DAG size of output: 113 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 19:03:00,267 WARN L232 SmtUtils]: Spent 13.14s on a formula simplification. DAG size of input: 141 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) Killed by 15