./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-2.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-2.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 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:48:31,437 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:48:31,444 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:48:31,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:48:31,465 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:48:31,466 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:48:31,466 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:48:31,468 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:48:31,469 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:48:31,469 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:48:31,470 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:48:31,471 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:48:31,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:48:31,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:48:31,472 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:48:31,473 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:48:31,474 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:48:31,474 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:48:31,475 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:48:31,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:48:31,477 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:48:31,478 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:48:31,479 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:48:31,480 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:48:31,480 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:48:31,482 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:48:31,482 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:48:31,482 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:48:31,483 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:48:31,483 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:48:31,484 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:48:31,484 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:48:31,485 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:48:31,485 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:48:31,486 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:48:31,486 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:48:31,487 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:48:31,487 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:48:31,487 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:48:31,487 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:48:31,488 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:48:31,492 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:48:31,492 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Default.epf [2022-04-18 18:48:31,511 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:48:31,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:48:31,514 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:48:31,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:48:31,515 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:48:31,515 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:48:31,515 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:48:31,516 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:48:31,516 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:48:31,516 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2022-04-18 18:48:31,516 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:48:31,517 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:48:31,517 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2022-04-18 18:48:31,517 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2022-04-18 18:48:31,517 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:48:31,517 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2022-04-18 18:48:31,518 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2022-04-18 18:48:31,518 INFO L138 SettingsManager]: * Simplification Technique=POLY_PAC [2022-04-18 18:48:31,519 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:48:31,519 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:48:31,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:48:31,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-04-18 18:48:31,520 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:48:31,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:48:31,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:48:31,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:48:31,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:48:31,520 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:48:31,521 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:48:31,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:48:31,521 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:48:31,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:48:31,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:48:31,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:48:31,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:48:31,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:48:31,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:48:31,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:48:31,522 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2022-04-18 18:48:31,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-04-18 18:48:31,522 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:48:31,522 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:48:31,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:48:31,523 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-04-18 18:48:31,743 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:48:31,758 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:48:31,759 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:48:31,760 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:48:31,760 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:48:31,761 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2022-04-18 18:48:31,799 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29d0745a8/b44aeb91a64743f6adf20d9e6678772b/FLAG761d742b9 [2022-04-18 18:48:32,361 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:48:32,362 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2022-04-18 18:48:32,382 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29d0745a8/b44aeb91a64743f6adf20d9e6678772b/FLAG761d742b9 [2022-04-18 18:48:32,848 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/29d0745a8/b44aeb91a64743f6adf20d9e6678772b [2022-04-18 18:48:32,850 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:48:32,851 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:48:32,852 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:48:32,852 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:48:32,870 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:48:32,870 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:48:32" (1/1) ... [2022-04-18 18:48:32,871 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c2fa70b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:32, skipping insertion in model container [2022-04-18 18:48:32,871 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:48:32" (1/1) ... [2022-04-18 18:48:32,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:48:32,904 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:48:33,312 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-2.i[76469,76482] [2022-04-18 18:48:33,357 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-2.i[79042,79055] [2022-04-18 18:48:33,365 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-2.i[79451,79464] [2022-04-18 18:48:33,376 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:48:33,383 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:48:33,411 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-2.i[76469,76482] [2022-04-18 18:48:33,425 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-2.i[79042,79055] [2022-04-18 18:48:33,428 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-2.i[79451,79464] [2022-04-18 18:48:33,436 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:48:33,530 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:48:33,531 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33 WrapperNode [2022-04-18 18:48:33,531 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:48:33,532 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:48:33,532 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:48:33,532 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:48:33,537 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,630 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,714 INFO L137 Inliner]: procedures = 489, calls = 128, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3207 [2022-04-18 18:48:33,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:48:33,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:48:33,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:48:33,715 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:48:33,721 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,744 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,744 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,835 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,857 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,867 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,890 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:48:33,891 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:48:33,891 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:48:33,891 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:48:33,892 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (1/1) ... [2022-04-18 18:48:33,896 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:48:33,902 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:48:33,916 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 18:48:33,934 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 18:48:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-04-18 18:48:33,942 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-04-18 18:48:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:48:33,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:48:33,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:48:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:48:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-04-18 18:48:33,944 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-04-18 18:48:33,945 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 18:48:34,176 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:48:34,177 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:48:36,581 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:48:37,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:48:37,373 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-04-18 18:48:37,376 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:48:37 BoogieIcfgContainer [2022-04-18 18:48:37,376 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:48:37,377 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:48:37,378 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:48:37,380 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:48:37,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:48:32" (1/3) ... [2022-04-18 18:48:37,380 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a05f323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:48:37, skipping insertion in model container [2022-04-18 18:48:37,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:48:33" (2/3) ... [2022-04-18 18:48:37,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a05f323 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:48:37, skipping insertion in model container [2022-04-18 18:48:37,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:48:37" (3/3) ... [2022-04-18 18:48:37,382 INFO L111 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-04-18 18:48:37,385 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:48:37,385 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:48:37,385 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 258 error locations. [2022-04-18 18:48:37,385 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:48:37,522 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:48:37,547 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:48:37,551 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 18:48:37,551 INFO L341 AbstractCegarLoop]: Starting to check reachability of 281 error locations. [2022-04-18 18:48:37,574 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:48:37,582 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2392 places, 2441 transitions, 4890 flow [2022-04-18 18:48:37,583 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 2392 places, 2441 transitions, 4890 flow [2022-04-18 18:48:37,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2392 places, 2441 transitions, 4890 flow [2022-04-18 18:48:38,769 INFO L129 PetriNetUnfolder]: 97/4537 cut-off events. [2022-04-18 18:48:38,769 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:48:38,826 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 23591 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 18:48:39,061 INFO L116 LiptonReduction]: Number of co-enabled transitions 899656 [2022-04-18 18:49:37,309 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 18:49:37,310 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 18:49:37,315 INFO L158 Benchmark]: Toolchain (without parser) took 64463.47ms. Allocated memory was 119.5MB in the beginning and 864.0MB in the end (delta: 744.5MB). Free memory was 94.8MB in the beginning and 442.1MB in the end (delta: -347.2MB). Peak memory consumption was 401.7MB. Max. memory is 16.1GB. [2022-04-18 18:49:37,316 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 62.2MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. [2022-04-18 18:49:37,316 INFO L158 Benchmark]: CACSL2BoogieTranslator took 679.81ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 88.6MB in the end (delta: 6.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. [2022-04-18 18:49:37,316 INFO L158 Benchmark]: Boogie Procedure Inliner took 182.48ms. Allocated memory is still 119.5MB. Free memory was 88.6MB in the beginning and 68.2MB in the end (delta: 20.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. [2022-04-18 18:49:37,317 INFO L158 Benchmark]: Boogie Preprocessor took 174.93ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 70.2MB in the end (delta: -2.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. [2022-04-18 18:49:37,317 INFO L158 Benchmark]: RCFGBuilder took 3485.85ms. Allocated memory was 119.5MB in the beginning and 432.0MB in the end (delta: 312.5MB). Free memory was 70.2MB in the beginning and 341.6MB in the end (delta: -271.4MB). Peak memory consumption was 123.9MB. Max. memory is 16.1GB. [2022-04-18 18:49:37,318 INFO L158 Benchmark]: TraceAbstraction took 59936.21ms. Allocated memory was 432.0MB in the beginning and 864.0MB in the end (delta: 432.0MB). Free memory was 340.6MB in the beginning and 442.1MB in the end (delta: -101.5MB). Peak memory consumption was 336.0MB. Max. memory is 16.1GB. [2022-04-18 18:49:37,320 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### [2022-04-18 18:49:37,312 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 101 --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory was 62.3MB in the beginning and 62.2MB in the end (delta: 44.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 679.81ms. Allocated memory is still 119.5MB. Free memory was 94.8MB in the beginning and 88.6MB in the end (delta: 6.2MB). Peak memory consumption was 69.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 182.48ms. Allocated memory is still 119.5MB. Free memory was 88.6MB in the beginning and 68.2MB in the end (delta: 20.5MB). Peak memory consumption was 27.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 174.93ms. Allocated memory is still 119.5MB. Free memory was 68.2MB in the beginning and 70.2MB in the end (delta: -2.1MB). Peak memory consumption was 37.3MB. Max. memory is 16.1GB. * RCFGBuilder took 3485.85ms. Allocated memory was 119.5MB in the beginning and 432.0MB in the end (delta: 312.5MB). Free memory was 70.2MB in the beginning and 341.6MB in the end (delta: -271.4MB). Peak memory consumption was 123.9MB. Max. memory is 16.1GB. * TraceAbstraction took 59936.21ms. Allocated memory was 432.0MB in the beginning and 864.0MB in the end (delta: 432.0MB). Free memory was 340.6MB in the beginning and 442.1MB in the end (delta: -101.5MB). Peak memory consumption was 336.0MB. 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-2.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 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f --- Real Ultimate output --- This is Ultimate 0.2.2-dev-efd9311-m [2022-04-18 18:49:38,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-04-18 18:49:38,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-04-18 18:49:38,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-04-18 18:49:38,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-04-18 18:49:38,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-04-18 18:49:38,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-04-18 18:49:38,881 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-04-18 18:49:38,884 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-04-18 18:49:38,887 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-04-18 18:49:38,888 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-04-18 18:49:38,890 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-04-18 18:49:38,890 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-04-18 18:49:38,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-04-18 18:49:38,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-04-18 18:49:38,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-04-18 18:49:38,896 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-04-18 18:49:38,898 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-04-18 18:49:38,899 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-04-18 18:49:38,904 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-04-18 18:49:38,905 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-04-18 18:49:38,906 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-04-18 18:49:38,907 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-04-18 18:49:38,908 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-04-18 18:49:38,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-04-18 18:49:38,914 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-04-18 18:49:38,914 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-04-18 18:49:38,914 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-04-18 18:49:38,915 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-04-18 18:49:38,915 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-04-18 18:49:38,916 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-04-18 18:49:38,916 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-04-18 18:49:38,917 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-04-18 18:49:38,918 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-04-18 18:49:38,919 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-04-18 18:49:38,919 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-04-18 18:49:38,919 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-04-18 18:49:38,920 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-04-18 18:49:38,920 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-04-18 18:49:38,920 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-04-18 18:49:38,921 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-04-18 18:49:38,921 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-04-18 18:49:38,922 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-DataRace-32bit-Taipan_Bitvector.epf [2022-04-18 18:49:38,957 INFO L113 SettingsManager]: Loading preferences was successful [2022-04-18 18:49:38,958 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-04-18 18:49:38,958 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-04-18 18:49:38,958 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-04-18 18:49:38,959 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-04-18 18:49:38,959 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-04-18 18:49:38,959 INFO L138 SettingsManager]: * User list type=DISABLED [2022-04-18 18:49:38,960 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2022-04-18 18:49:38,960 INFO L138 SettingsManager]: * Explicit value domain=true [2022-04-18 18:49:38,960 INFO L138 SettingsManager]: * Octagon Domain=false [2022-04-18 18:49:38,960 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2022-04-18 18:49:38,961 INFO L138 SettingsManager]: * Interval Domain=false [2022-04-18 18:49:38,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-04-18 18:49:38,961 INFO L138 SettingsManager]: * sizeof long=4 [2022-04-18 18:49:38,962 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-04-18 18:49:38,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-04-18 18:49:38,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-04-18 18:49:38,962 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-04-18 18:49:38,962 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-04-18 18:49:38,962 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-04-18 18:49:38,962 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2022-04-18 18:49:38,963 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-04-18 18:49:38,963 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-04-18 18:49:38,963 INFO L138 SettingsManager]: * sizeof long double=12 [2022-04-18 18:49:38,963 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-04-18 18:49:38,963 INFO L138 SettingsManager]: * Use constant arrays=true [2022-04-18 18:49:38,963 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-04-18 18:49:38,963 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-04-18 18:49:38,963 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-04-18 18:49:38,964 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-04-18 18:49:38,964 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:49:38,964 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-04-18 18:49:38,964 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-04-18 18:49:38,964 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-04-18 18:49:38,965 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2022-04-18 18:49:38,965 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-04-18 18:49:38,965 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-04-18 18:49:38,965 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2022-04-18 18:49:38,965 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-04-18 18:49:38,965 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4ef1ebb9985ad6dadbe7cf99c72a7d7cbd507bc2d179a6afec5353fae325d63f [2022-04-18 18:49:39,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-04-18 18:49:39,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-04-18 18:49:39,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-04-18 18:49:39,270 INFO L271 PluginConnector]: Initializing CDTParser... [2022-04-18 18:49:39,271 INFO L275 PluginConnector]: CDTParser initialized [2022-04-18 18:49:39,272 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2022-04-18 18:49:39,329 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/909f5629c/adaa81c8f7234e189d7e2824dbee05fd/FLAG52bd919b5 [2022-04-18 18:49:39,704 INFO L306 CDTParser]: Found 1 translation units. [2022-04-18 18:49:39,704 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-complex/workstealqueue_mutex-2.i [2022-04-18 18:49:39,719 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/909f5629c/adaa81c8f7234e189d7e2824dbee05fd/FLAG52bd919b5 [2022-04-18 18:49:40,056 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/909f5629c/adaa81c8f7234e189d7e2824dbee05fd [2022-04-18 18:49:40,058 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-04-18 18:49:40,059 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-04-18 18:49:40,061 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-04-18 18:49:40,061 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-04-18 18:49:40,064 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-04-18 18:49:40,064 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:40,065 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cc22835 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40, skipping insertion in model container [2022-04-18 18:49:40,066 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:40,071 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-04-18 18:49:40,124 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-04-18 18:49:40,601 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-2.i[76469,76482] [2022-04-18 18:49:40,630 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-2.i[79042,79055] [2022-04-18 18:49:40,635 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-2.i[79451,79464] [2022-04-18 18:49:40,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:49:40,651 INFO L203 MainTranslator]: Completed pre-run [2022-04-18 18:49:40,675 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-2.i[76469,76482] [2022-04-18 18:49:40,703 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-2.i[79042,79055] [2022-04-18 18:49:40,706 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-2.i[79451,79464] [2022-04-18 18:49:40,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-04-18 18:49:40,798 INFO L208 MainTranslator]: Completed translation [2022-04-18 18:49:40,798 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40 WrapperNode [2022-04-18 18:49:40,798 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-04-18 18:49:40,804 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-04-18 18:49:40,804 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-04-18 18:49:40,804 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-04-18 18:49:40,809 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:40,865 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:40,993 INFO L137 Inliner]: procedures = 493, calls = 127, calls flagged for inlining = 45, calls inlined = 117, statements flattened = 3120 [2022-04-18 18:49:40,993 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-04-18 18:49:40,994 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-04-18 18:49:40,994 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-04-18 18:49:40,995 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-04-18 18:49:41,000 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,000 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,031 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,031 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,130 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,152 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,164 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,184 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-04-18 18:49:41,185 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-04-18 18:49:41,186 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-04-18 18:49:41,186 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-04-18 18:49:41,186 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (1/1) ... [2022-04-18 18:49:41,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-04-18 18:49:41,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 [2022-04-18 18:49:41,225 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 18:49:41,230 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 18:49:41,266 INFO L130 BoogieDeclarations]: Found specification of procedure Stealer [2022-04-18 18:49:41,267 INFO L138 BoogieDeclarations]: Found implementation of procedure Stealer [2022-04-18 18:49:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-04-18 18:49:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-04-18 18:49:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-04-18 18:49:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2022-04-18 18:49:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-04-18 18:49:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-04-18 18:49:41,267 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-04-18 18:49:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-04-18 18:49:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-04-18 18:49:41,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-04-18 18:49:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2022-04-18 18:49:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-04-18 18:49:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-04-18 18:49:41,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2022-04-18 18:49:41,270 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 18:49:41,648 INFO L234 CfgBuilder]: Building ICFG [2022-04-18 18:49:41,649 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-04-18 18:49:44,993 INFO L275 CfgBuilder]: Performing block encoding [2022-04-18 18:49:45,999 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-04-18 18:49:46,000 INFO L299 CfgBuilder]: Removed 11 assume(true) statements. [2022-04-18 18:49:46,004 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:49:46 BoogieIcfgContainer [2022-04-18 18:49:46,004 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-04-18 18:49:46,006 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-04-18 18:49:46,006 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-04-18 18:49:46,008 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-04-18 18:49:46,008 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 06:49:40" (1/3) ... [2022-04-18 18:49:46,008 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222d7d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:49:46, skipping insertion in model container [2022-04-18 18:49:46,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 06:49:40" (2/3) ... [2022-04-18 18:49:46,009 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@222d7d2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 06:49:46, skipping insertion in model container [2022-04-18 18:49:46,009 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 06:49:46" (3/3) ... [2022-04-18 18:49:46,010 INFO L111 eAbstractionObserver]: Analyzing ICFG workstealqueue_mutex-2.i [2022-04-18 18:49:46,013 WARN L147 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-04-18 18:49:46,014 INFO L202 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-04-18 18:49:46,014 INFO L161 ceAbstractionStarter]: Applying trace abstraction to program that has 256 error locations. [2022-04-18 18:49:46,014 INFO L504 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-04-18 18:49:46,164 INFO L135 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-04-18 18:49:46,192 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-04-18 18:49:46,196 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 18:49:46,196 INFO L341 AbstractCegarLoop]: Starting to check reachability of 279 error locations. [2022-04-18 18:49:46,220 INFO L116 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-04-18 18:49:46,229 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 2303 places, 2344 transitions, 4696 flow [2022-04-18 18:49:46,231 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 2303 places, 2344 transitions, 4696 flow [2022-04-18 18:49:46,232 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 2303 places, 2344 transitions, 4696 flow [2022-04-18 18:49:47,388 INFO L129 PetriNetUnfolder]: 81/4348 cut-off events. [2022-04-18 18:49:47,388 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-04-18 18:49:47,443 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 22654 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 18:49:47,621 INFO L116 LiptonReduction]: Number of co-enabled transitions 844200 [2022-04-18 18:49:54,602 WARN L232 SmtUtils]: Spent 6.30s 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 18:50:06,447 WARN L232 SmtUtils]: Spent 8.77s 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 18:50:22,580 WARN L232 SmtUtils]: Spent 7.13s on a formula simplification. DAG size of input: 139 DAG size of output: 116 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:50:38,078 WARN L232 SmtUtils]: Spent 12.00s 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 18:51:01,373 WARN L232 SmtUtils]: Spent 8.13s 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 18:51:16,666 WARN L232 SmtUtils]: Spent 11.80s 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 18:51:22,652 WARN L232 SmtUtils]: Spent 5.99s 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 18:51:39,530 WARN L232 SmtUtils]: Spent 8.93s 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 18:51:55,221 WARN L232 SmtUtils]: Spent 11.05s 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 18:52:02,154 WARN L232 SmtUtils]: Spent 6.93s 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 18:52:41,398 WARN L232 SmtUtils]: Spent 11.59s 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 18:52:55,881 WARN L232 SmtUtils]: Spent 10.87s 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 18:53:02,891 WARN L232 SmtUtils]: Spent 7.00s 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 18:53:17,262 WARN L232 SmtUtils]: Spent 12.15s 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 18:53:22,903 WARN L232 SmtUtils]: Spent 5.64s 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 18:53:37,420 WARN L232 SmtUtils]: Spent 14.51s 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 18:53:43,895 WARN L232 SmtUtils]: Spent 6.47s 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 18:53:57,956 WARN L232 SmtUtils]: Spent 9.21s 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 18:54:14,012 WARN L232 SmtUtils]: Spent 11.78s 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 18:54:19,734 WARN L232 SmtUtils]: Spent 5.72s 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 18:54:41,902 WARN L232 SmtUtils]: Spent 12.96s 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 18:54:54,993 WARN L232 SmtUtils]: Spent 10.08s on a formula simplification. DAG size of input: 138 DAG size of output: 117 (called from [L 279] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaUtils.sequentialComposition) [2022-04-18 18:55:00,772 WARN L232 SmtUtils]: Spent 5.78s 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 18:55:22,777 WARN L232 SmtUtils]: Spent 9.03s 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 18:55:38,285 WARN L232 SmtUtils]: Spent 10.71s 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 18:55:44,808 WARN L232 SmtUtils]: Spent 6.52s 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 18:56:31,110 WARN L232 SmtUtils]: Spent 10.70s 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 18:56:36,586 WARN L232 SmtUtils]: Spent 5.47s 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 18:56:48,634 WARN L232 SmtUtils]: Spent 12.05s 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 18:56:54,407 WARN L232 SmtUtils]: Spent 5.77s 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 18:57:13,184 WARN L232 SmtUtils]: Spent 11.03s 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 18:57:28,212 WARN L232 SmtUtils]: Spent 10.51s 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 18:57:42,059 WARN L232 SmtUtils]: Spent 8.15s 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 18:57:55,242 WARN L232 SmtUtils]: Spent 9.93s 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 18:58:11,314 WARN L232 SmtUtils]: Spent 10.40s 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 18:58:25,905 WARN L232 SmtUtils]: Spent 10.39s 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 18:59:01,420 WARN L232 SmtUtils]: Spent 9.90s 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 18:59:14,781 WARN L232 SmtUtils]: Spent 9.63s 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 18:59:21,444 WARN L232 SmtUtils]: Spent 6.66s 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 18:59:45,476 WARN L232 SmtUtils]: Spent 8.30s 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 19:00:02,194 WARN L232 SmtUtils]: Spent 12.57s 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 19:00:53,443 WARN L232 SmtUtils]: Spent 8.92s 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 19:01:10,620 WARN L232 SmtUtils]: Spent 13.82s 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 19:01:17,628 WARN L232 SmtUtils]: Spent 7.01s 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) Killed by 15