./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 16:31:20,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 16:31:20,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 16:31:20,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 16:31:20,837 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 16:31:20,840 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 16:31:20,842 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 16:31:20,844 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 16:31:20,848 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 16:31:20,851 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 16:31:20,852 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 16:31:20,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 16:31:20,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 16:31:20,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 16:31:20,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 16:31:20,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 16:31:20,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 16:31:20,855 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 16:31:20,856 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 16:31:20,857 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 16:31:20,858 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 16:31:20,862 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 16:31:20,863 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 16:31:20,864 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 16:31:20,867 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 16:31:20,870 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 16:31:20,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 16:31:20,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 16:31:20,875 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 16:31:20,876 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 16:31:20,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 16:31:20,879 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 16:31:20,880 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 16:31:20,881 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 16:31:20,882 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 16:31:20,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 16:31:20,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 16:31:20,886 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 16:31:20,886 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 16:31:20,887 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 16:31:20,887 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 16:31:20,889 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 16:31:20,921 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 16:31:20,921 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 16:31:20,921 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 16:31:20,921 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 16:31:20,922 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 16:31:20,922 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 16:31:20,922 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 16:31:20,923 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 16:31:20,923 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 16:31:20,923 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 16:31:20,923 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 16:31:20,923 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 16:31:20,923 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 16:31:20,923 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 16:31:20,923 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 16:31:20,924 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 16:31:20,924 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 16:31:20,925 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 16:31:20,925 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 16:31:20,925 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:31:20,925 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 16:31:20,925 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 16:31:20,925 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 16:31:20,926 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 16:31:20,926 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 16:31:20,926 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 16:31:20,926 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 16:31:20,926 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 16:31:20,927 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 16:31:20,927 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 16:31:20,927 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 16:31:21,241 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 16:31:21,255 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 16:31:21,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 16:31:21,259 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 16:31:21,259 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 16:31:21,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-29 16:31:22,444 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 16:31:22,757 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 16:31:22,758 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-29 16:31:22,794 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d2cd13/8272a14988b342c59ba85a079dd33e72/FLAG24fdc92ed [2023-08-29 16:31:22,812 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d2cd13/8272a14988b342c59ba85a079dd33e72 [2023-08-29 16:31:22,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 16:31:22,816 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 16:31:22,818 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 16:31:22,818 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 16:31:22,826 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 16:31:22,827 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:31:22" (1/1) ... [2023-08-29 16:31:22,828 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27fa7341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:22, skipping insertion in model container [2023-08-29 16:31:22,828 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:31:22" (1/1) ... [2023-08-29 16:31:22,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 16:31:22,883 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 16:31:23,356 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i[76069,76082] [2023-08-29 16:31:23,394 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:31:23,412 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 16:31:23,471 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i[76069,76082] [2023-08-29 16:31:23,478 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:31:23,589 INFO L208 MainTranslator]: Completed translation [2023-08-29 16:31:23,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23 WrapperNode [2023-08-29 16:31:23,589 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 16:31:23,590 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 16:31:23,590 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 16:31:23,590 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 16:31:23,595 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,616 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,639 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-08-29 16:31:23,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 16:31:23,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 16:31:23,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 16:31:23,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 16:31:23,646 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,647 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,651 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,651 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,662 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,664 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,671 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 16:31:23,689 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 16:31:23,689 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 16:31:23,689 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 16:31:23,690 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (1/1) ... [2023-08-29 16:31:23,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:31:23,704 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:31:23,718 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 16:31:23,723 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 16:31:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 16:31:23,749 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 16:31:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 16:31:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 16:31:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 16:31:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 16:31:23,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 16:31:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 16:31:23,750 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 16:31:23,751 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 16:31:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 16:31:23,751 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 16:31:23,752 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 16:31:24,024 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 16:31:24,026 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 16:31:24,236 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 16:31:24,249 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 16:31:24,251 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 16:31:24,253 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:31:24 BoogieIcfgContainer [2023-08-29 16:31:24,254 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 16:31:24,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 16:31:24,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 16:31:24,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 16:31:24,260 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:31:22" (1/3) ... [2023-08-29 16:31:24,260 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355994b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:31:24, skipping insertion in model container [2023-08-29 16:31:24,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:31:23" (2/3) ... [2023-08-29 16:31:24,262 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@355994b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:31:24, skipping insertion in model container [2023-08-29 16:31:24,262 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:31:24" (3/3) ... [2023-08-29 16:31:24,263 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2023-08-29 16:31:24,270 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 16:31:24,279 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 16:31:24,279 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-29 16:31:24,279 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 16:31:24,358 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 16:31:24,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 140 transitions, 288 flow [2023-08-29 16:31:24,482 INFO L130 PetriNetUnfolder]: 5/157 cut-off events. [2023-08-29 16:31:24,483 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:31:24,487 INFO L83 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 157 events. 5/157 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 203 event pairs, 0 based on Foata normal form. 0/139 useless extension candidates. Maximal degree in co-relation 83. Up to 3 conditions per place. [2023-08-29 16:31:24,489 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 140 transitions, 288 flow [2023-08-29 16:31:24,497 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 260 flow [2023-08-29 16:31:24,501 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:31:24,521 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 260 flow [2023-08-29 16:31:24,528 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 260 flow [2023-08-29 16:31:24,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 260 flow [2023-08-29 16:31:24,563 INFO L130 PetriNetUnfolder]: 3/145 cut-off events. [2023-08-29 16:31:24,564 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:31:24,565 INFO L83 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 145 events. 3/145 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 197 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 83. Up to 2 conditions per place. [2023-08-29 16:31:24,567 INFO L119 LiptonReduction]: Number of co-enabled transitions 888 [2023-08-29 16:31:27,932 INFO L134 LiptonReduction]: Checked pairs total: 2129 [2023-08-29 16:31:27,932 INFO L136 LiptonReduction]: Total number of compositions: 141 [2023-08-29 16:31:27,942 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:31:27,947 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@5eec5c20, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:31:27,947 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-29 16:31:27,949 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:31:27,949 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:31:27,949 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:27,950 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:31:27,950 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:27,954 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:27,954 INFO L85 PathProgramCache]: Analyzing trace with hash 490, now seen corresponding path program 1 times [2023-08-29 16:31:27,960 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:27,961 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [623254495] [2023-08-29 16:31:27,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:27,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:28,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:31:28,132 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:31:28,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:31:28,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [623254495] [2023-08-29 16:31:28,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [623254495] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:31:28,134 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:31:28,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:31:28,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1818955006] [2023-08-29 16:31:28,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:31:28,142 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:31:28,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:31:28,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:31:28,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:31:28,165 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-08-29 16:31:28,167 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 28 places, 26 transitions, 58 flow. Second operand has 2 states, 2 states have (on average 130.5) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,167 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:31:28,167 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-08-29 16:31:28,168 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:31:28,203 INFO L130 PetriNetUnfolder]: 15/55 cut-off events. [2023-08-29 16:31:28,203 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 16:31:28,204 INFO L83 FinitePrefix]: Finished finitePrefix Result has 105 conditions, 55 events. 15/55 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 142 event pairs, 15 based on Foata normal form. 5/50 useless extension candidates. Maximal degree in co-relation 87. Up to 45 conditions per place. [2023-08-29 16:31:28,205 INFO L137 encePairwiseOnDemand]: 273/281 looper letters, 10 selfloop transitions, 0 changer transitions 2/18 dead transitions. [2023-08-29 16:31:28,205 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 66 flow [2023-08-29 16:31:28,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:31:28,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:31:28,220 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 280 transitions. [2023-08-29 16:31:28,224 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498220640569395 [2023-08-29 16:31:28,225 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 280 transitions. [2023-08-29 16:31:28,225 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 280 transitions. [2023-08-29 16:31:28,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:31:28,230 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 280 transitions. [2023-08-29 16:31:28,236 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 140.0) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,240 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 281.0) internal successors, (843), 3 states have internal predecessors, (843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,242 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 58 flow. Second operand 2 states and 280 transitions. [2023-08-29 16:31:28,242 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 66 flow [2023-08-29 16:31:28,244 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 16:31:28,246 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 33 flow [2023-08-29 16:31:28,247 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=18, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=33, PETRI_PLACES=20, PETRI_TRANSITIONS=16} [2023-08-29 16:31:28,252 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2023-08-29 16:31:28,253 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 33 flow [2023-08-29 16:31:28,253 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 130.5) internal successors, (261), 2 states have internal predecessors, (261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,253 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:28,253 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 16:31:28,254 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 16:31:28,254 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:28,262 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:28,264 INFO L85 PathProgramCache]: Analyzing trace with hash 466316829, now seen corresponding path program 1 times [2023-08-29 16:31:28,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:28,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084151793] [2023-08-29 16:31:28,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:28,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:31:28,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:31:28,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:31:28,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084151793] [2023-08-29 16:31:28,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2084151793] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:31:28,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:31:28,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:31:28,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865890724] [2023-08-29 16:31:28,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:31:28,423 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:31:28,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:31:28,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:31:28,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:31:28,465 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 281 [2023-08-29 16:31:28,466 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 20 places, 16 transitions, 33 flow. Second operand has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,466 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:31:28,467 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 281 [2023-08-29 16:31:28,467 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:31:28,511 INFO L130 PetriNetUnfolder]: 23/72 cut-off events. [2023-08-29 16:31:28,511 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:31:28,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 136 conditions, 72 events. 23/72 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 214 event pairs, 19 based on Foata normal form. 0/62 useless extension candidates. Maximal degree in co-relation 133. Up to 55 conditions per place. [2023-08-29 16:31:28,512 INFO L137 encePairwiseOnDemand]: 277/281 looper letters, 14 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2023-08-29 16:31:28,512 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 20 transitions, 75 flow [2023-08-29 16:31:28,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:31:28,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:31:28,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-29 16:31:28,516 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43416370106761565 [2023-08-29 16:31:28,516 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-29 16:31:28,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-29 16:31:28,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:31:28,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-29 16:31:28,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,521 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,522 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,522 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 33 flow. Second operand 3 states and 366 transitions. [2023-08-29 16:31:28,522 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 20 transitions, 75 flow [2023-08-29 16:31:28,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 75 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:31:28,523 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 52 flow [2023-08-29 16:31:28,524 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=33, PETRI_DIFFERENCE_MINUEND_PLACES=19, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=22, PETRI_TRANSITIONS=18} [2023-08-29 16:31:28,524 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-08-29 16:31:28,525 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 52 flow [2023-08-29 16:31:28,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 117.66666666666667) internal successors, (353), 3 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,525 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:28,525 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 16:31:28,526 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 16:31:28,526 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:28,528 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:28,528 INFO L85 PathProgramCache]: Analyzing trace with hash 466333908, now seen corresponding path program 1 times [2023-08-29 16:31:28,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:28,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [364212411] [2023-08-29 16:31:28,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:28,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:31:28,594 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:31:28,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:31:28,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [364212411] [2023-08-29 16:31:28,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [364212411] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:31:28,595 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:31:28,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:31:28,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1408322689] [2023-08-29 16:31:28,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:31:28,597 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:31:28,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:31:28,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:31:28,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:31:28,649 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 281 [2023-08-29 16:31:28,650 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 22 places, 18 transitions, 52 flow. Second operand has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,650 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:31:28,650 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 281 [2023-08-29 16:31:28,651 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:31:28,691 INFO L130 PetriNetUnfolder]: 31/86 cut-off events. [2023-08-29 16:31:28,691 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-29 16:31:28,692 INFO L83 FinitePrefix]: Finished finitePrefix Result has 195 conditions, 86 events. 31/86 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 263 event pairs, 17 based on Foata normal form. 0/69 useless extension candidates. Maximal degree in co-relation 190. Up to 65 conditions per place. [2023-08-29 16:31:28,692 INFO L137 encePairwiseOnDemand]: 276/281 looper letters, 15 selfloop transitions, 5 changer transitions 3/26 dead transitions. [2023-08-29 16:31:28,693 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 119 flow [2023-08-29 16:31:28,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:31:28,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:31:28,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-29 16:31:28,695 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424673784104389 [2023-08-29 16:31:28,695 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-29 16:31:28,695 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-29 16:31:28,695 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:31:28,696 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-29 16:31:28,697 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 124.33333333333333) internal successors, (373), 3 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,699 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 281.0) internal successors, (1124), 4 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,699 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 52 flow. Second operand 3 states and 373 transitions. [2023-08-29 16:31:28,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 119 flow [2023-08-29 16:31:28,700 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 26 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:31:28,701 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 80 flow [2023-08-29 16:31:28,701 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=281, PETRI_DIFFERENCE_MINUEND_FLOW=49, PETRI_DIFFERENCE_MINUEND_PLACES=21, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=80, PETRI_PLACES=24, PETRI_TRANSITIONS=21} [2023-08-29 16:31:28,702 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2023-08-29 16:31:28,702 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 80 flow [2023-08-29 16:31:28,702 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 118.66666666666667) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:31:28,702 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:31:28,703 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:31:28,703 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 16:31:28,703 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-29 16:31:28,703 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:31:28,704 INFO L85 PathProgramCache]: Analyzing trace with hash 1459563884, now seen corresponding path program 1 times [2023-08-29 16:31:28,704 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:31:28,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2049511124] [2023-08-29 16:31:28,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:31:28,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:31:28,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:31:28,725 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 16:31:28,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 16:31:28,753 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 16:31:28,754 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 16:31:28,755 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-29 16:31:28,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-29 16:31:28,756 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-08-29 16:31:28,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-08-29 16:31:28,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-29 16:31:28,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-29 16:31:28,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-29 16:31:28,757 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-29 16:31:28,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-29 16:31:28,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-29 16:31:28,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-08-29 16:31:28,758 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-08-29 16:31:28,759 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 16:31:28,759 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 16:31:28,764 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 16:31:28,765 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 16:31:28,783 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:31:28 BasicIcfg [2023-08-29 16:31:28,783 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 16:31:28,784 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 16:31:28,784 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 16:31:28,784 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 16:31:28,785 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:31:24" (3/4) ... [2023-08-29 16:31:28,787 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 16:31:28,787 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 16:31:28,787 INFO L158 Benchmark]: Toolchain (without parser) took 5971.11ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 59.4MB in the beginning and 61.5MB in the end (delta: -2.2MB). Peak memory consumption was 39.7MB. Max. memory is 16.1GB. [2023-08-29 16:31:28,788 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:31:28,788 INFO L158 Benchmark]: CACSL2BoogieTranslator took 771.19ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 50.4MB in the end (delta: 8.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. [2023-08-29 16:31:28,788 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.22ms. Allocated memory is still 86.0MB. Free memory was 50.4MB in the beginning and 47.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 16:31:28,789 INFO L158 Benchmark]: Boogie Preprocessor took 48.64ms. Allocated memory is still 86.0MB. Free memory was 47.5MB in the beginning and 44.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:31:28,789 INFO L158 Benchmark]: RCFGBuilder took 565.15ms. Allocated memory is still 86.0MB. Free memory was 44.5MB in the beginning and 46.0MB in the end (delta: -1.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. [2023-08-29 16:31:28,790 INFO L158 Benchmark]: TraceAbstraction took 4528.09ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 45.2MB in the beginning and 61.5MB in the end (delta: -16.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. [2023-08-29 16:31:28,790 INFO L158 Benchmark]: Witness Printer took 2.88ms. Allocated memory is still 125.8MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:31:28,792 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 65.0MB. Free memory is still 43.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 771.19ms. Allocated memory is still 86.0MB. Free memory was 59.3MB in the beginning and 50.4MB in the end (delta: 8.9MB). Peak memory consumption was 30.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.22ms. Allocated memory is still 86.0MB. Free memory was 50.4MB in the beginning and 47.5MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 48.64ms. Allocated memory is still 86.0MB. Free memory was 47.5MB in the beginning and 44.5MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 565.15ms. Allocated memory is still 86.0MB. Free memory was 44.5MB in the beginning and 46.0MB in the end (delta: -1.5MB). Peak memory consumption was 12.7MB. Max. memory is 16.1GB. * TraceAbstraction took 4528.09ms. Allocated memory was 86.0MB in the beginning and 125.8MB in the end (delta: 39.8MB). Free memory was 45.2MB in the beginning and 61.5MB in the end (delta: -16.4MB). Peak memory consumption was 23.6MB. Max. memory is 16.1GB. * Witness Printer took 2.88ms. Allocated memory is still 125.8MB. Free memory is still 61.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3.4s, 127 PlacesBefore, 28 PlacesAfterwards, 127 TransitionsBefore, 26 TransitionsAfterwards, 888 CoEnabledTransitionPairs, 8 FixpointIterations, 91 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 3 ConcurrentYvCompositions, 2 ChoiceCompositions, 141 TotalNumberOfCompositions, 2129 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1125, independent: 936, independent conditional: 0, independent unconditional: 936, dependent: 189, dependent conditional: 0, dependent unconditional: 189, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 472, independent: 447, independent conditional: 0, independent unconditional: 447, dependent: 25, dependent conditional: 0, dependent unconditional: 25, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1125, independent: 489, independent conditional: 0, independent unconditional: 489, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 472, unknown conditional: 0, unknown unconditional: 472] , Statistics on independence cache: Total cache size (in pairs): 31, Positive cache size: 20, Positive conditional cache size: 0, Positive unconditional cache size: 20, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1709]: Data race detected Data race detected The following path leads to a data race: [L1694] 0 pthread_t t1; [L1695] 0 pthread_mutex_t mutex; [L1696] 0 int pdev; [L1726] CALL 0 module_init() [L1705] 0 pdev = 1 [L1706] EXPR 0 pdev==1 [L1706] CALL 0 ldv_assert(pdev==1) [L1693] COND FALSE 0 !(!expression) [L1706] RET 0 ldv_assert(pdev==1) [L1707] COND TRUE 0 __VERIFIER_nondet_int() [L1708] FCALL, FORK 0 pthread_create(&t1, ((void *)0), thread1, ((void *)0)) VAL [arg={0:0}, mutex={4:0}, pdev=1, pthread_create(&t1, ((void *)0), thread1, ((void *)0))=-1, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, mutex={4:0}, pdev=2, t1={3:0}] [L1699] 1 pdev = 6 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev=6, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 2=1150, pdev=6, t1={3:0}] [L1709] 0 pdev = 2 VAL [arg={0:0}, arg={0:0}, mutex={4:0}, pdev = 2=1150, pdev = 6=1153, pdev=6, t1={3:0}] Now there is a data race on ~pdev~0 between C: pdev = 6 [1699] and C: pdev = 2 [1709] - UnprovableResult [Line: 1699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1705]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1706]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1720]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1722]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1723]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1708]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 149 locations, 12 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 4.4s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 120 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 40 mSDsluCounter, 1 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 159 IncrementalHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 1 mSDtfsCounter, 159 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=80occurred in iteration=3, InterpolantAutomatonStates: 8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 18 NumberOfCodeBlocks, 18 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 12 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-08-29 16:31:28,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE