./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 AFTER --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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:01:24,816 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:01:24,819 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:01:24,861 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:01:24,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:01:24,866 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:01:24,868 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:01:24,871 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:01:24,872 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:01:24,877 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:01:24,877 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:01:24,880 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:01:24,880 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:01:24,882 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:01:24,883 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:01:24,888 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:01:24,889 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:01:24,890 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:01:24,891 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:01:24,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:01:24,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:01:24,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:01:24,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:01:24,910 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:01:24,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:01:24,917 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:01:24,917 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:01:24,919 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:01:24,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:01:24,920 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:01:24,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:01:24,926 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:01:24,928 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:01:24,929 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:01:24,930 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:01:24,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:01:24,930 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:01:24,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:01:24,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:01:24,932 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:01:24,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:01:24,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:01:24,966 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:01:24,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:01:24,968 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:01:24,968 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:01:24,969 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:01:24,969 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:01:24,970 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:01:24,970 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:01:24,970 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:01:24,970 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:01:24,971 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:01:24,971 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:01:24,972 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:01:24,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:01:24,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:01:24,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:01:24,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:01:24,973 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:01:24,973 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:01:24,973 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:01:24,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:01:24,973 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:01:24,974 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:01:24,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:01:24,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:01:24,974 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:01:24,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:01:24,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:01:24,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:01:24,975 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:01:24,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:01:24,976 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:01:24,976 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:01:24,976 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:01:24,976 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:01:24,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:01:24,977 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:01:24,977 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:01:25,295 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:01:25,314 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:01:25,317 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:01:25,318 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:01:25,318 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:01:25,320 INFO L432 ainManager$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 01:01:26,416 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:01:26,690 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:01:26,690 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-29 01:01:26,715 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abefaf118/c8255895d62a419f8efdc11baddc9844/FLAG4d3ca626d [2023-08-29 01:01:26,729 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/abefaf118/c8255895d62a419f8efdc11baddc9844 [2023-08-29 01:01:26,731 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:01:26,732 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:01:26,735 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:01:26,735 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:01:26,737 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:01:26,738 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:01:26" (1/1) ... [2023-08-29 01:01:26,740 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a77c842 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:26, skipping insertion in model container [2023-08-29 01:01:26,740 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:01:26" (1/1) ... [2023-08-29 01:01:26,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:01:26,806 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:01:27,513 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 01:01:27,540 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:01:27,555 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:01:27,597 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 01:01:27,612 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:01:27,744 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:01:27,745 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27 WrapperNode [2023-08-29 01:01:27,745 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:01:27,746 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:01:27,746 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:01:27,747 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:01:27,753 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,780 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,802 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-08-29 01:01:27,803 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:01:27,804 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:01:27,804 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:01:27,804 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:01:27,811 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,816 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,826 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,828 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,831 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,833 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:01:27,839 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:01:27,839 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:01:27,839 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:01:27,840 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (1/1) ... [2023-08-29 01:01:27,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:01:27,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:01:27,867 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 01:01:27,901 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 01:01:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:01:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:01:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:01:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:01:27,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 01:01:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:01:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:01:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:01:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-29 01:01:27,920 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-29 01:01:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:01:27,920 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:01:27,922 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 01:01:28,231 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:01:28,239 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:01:28,382 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:01:28,389 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:01:28,390 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:01:28,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:01:28 BoogieIcfgContainer [2023-08-29 01:01:28,392 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:01:28,394 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:01:28,395 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:01:28,397 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:01:28,398 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:01:26" (1/3) ... [2023-08-29 01:01:28,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abc50ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:01:28, skipping insertion in model container [2023-08-29 01:01:28,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:01:27" (2/3) ... [2023-08-29 01:01:28,399 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abc50ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:01:28, skipping insertion in model container [2023-08-29 01:01:28,399 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:01:28" (3/3) ... [2023-08-29 01:01:28,401 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2023-08-29 01:01:28,408 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:01:28,416 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:01:28,416 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-29 01:01:28,416 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:01:28,466 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 01:01:28,494 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 140 transitions, 288 flow [2023-08-29 01:01:28,537 INFO L130 PetriNetUnfolder]: 5/157 cut-off events. [2023-08-29 01:01:28,538 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:01:28,555 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 01:01:28,555 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 140 transitions, 288 flow [2023-08-29 01:01:28,564 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 260 flow [2023-08-29 01:01:28,567 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:01:28,575 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 260 flow [2023-08-29 01:01:28,581 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 260 flow [2023-08-29 01:01:28,581 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 260 flow [2023-08-29 01:01:28,603 INFO L130 PetriNetUnfolder]: 3/145 cut-off events. [2023-08-29 01:01:28,603 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:01:28,604 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 01:01:28,605 INFO L119 LiptonReduction]: Number of co-enabled transitions 888 [2023-08-29 01:01:31,921 INFO L134 LiptonReduction]: Checked pairs total: 2129 [2023-08-29 01:01:31,922 INFO L136 LiptonReduction]: Total number of compositions: 141 [2023-08-29 01:01:31,934 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:01:31,939 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;@f1a5353, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:01:31,940 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-29 01:01:31,941 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 01:01:31,941 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:01:31,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:01:31,942 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 01:01:31,942 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 01:01:31,946 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:01:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash 490, now seen corresponding path program 1 times [2023-08-29 01:01:31,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:01:31,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486717164] [2023-08-29 01:01:31,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:01:31,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:01:32,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:01:32,186 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 01:01:32,189 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:01:32,190 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486717164] [2023-08-29 01:01:32,190 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486717164] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:01:32,191 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:01:32,191 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 01:01:32,192 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519244255] [2023-08-29 01:01:32,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:01:32,201 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 01:01:32,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:01:32,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 01:01:32,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 01:01:32,228 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-08-29 01:01:32,230 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 01:01:32,230 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:01:32,231 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-08-29 01:01:32,231 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:01:32,272 INFO L130 PetriNetUnfolder]: 15/55 cut-off events. [2023-08-29 01:01:32,272 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:01:32,272 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 01:01:32,273 INFO L137 encePairwiseOnDemand]: 273/281 looper letters, 10 selfloop transitions, 0 changer transitions 2/18 dead transitions. [2023-08-29 01:01:32,274 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 66 flow [2023-08-29 01:01:32,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 01:01:32,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 01:01:32,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 280 transitions. [2023-08-29 01:01:32,292 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498220640569395 [2023-08-29 01:01:32,293 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 280 transitions. [2023-08-29 01:01:32,294 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 280 transitions. [2023-08-29 01:01:32,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:01:32,299 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 280 transitions. [2023-08-29 01:01:32,304 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 01:01:32,308 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 01:01:32,309 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 01:01:32,310 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 58 flow. Second operand 2 states and 280 transitions. [2023-08-29 01:01:32,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 66 flow [2023-08-29 01:01:32,313 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 01:01:32,315 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 33 flow [2023-08-29 01:01:32,317 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 01:01:32,319 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2023-08-29 01:01:32,320 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 33 flow [2023-08-29 01:01:32,320 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 01:01:32,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:01:32,320 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:01:32,322 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:01:32,322 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 01:01:32,324 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:01:32,326 INFO L85 PathProgramCache]: Analyzing trace with hash 466316829, now seen corresponding path program 1 times [2023-08-29 01:01:32,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:01:32,326 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506309161] [2023-08-29 01:01:32,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:01:32,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:01:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:01:32,462 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 01:01:32,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:01:32,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506309161] [2023-08-29 01:01:32,464 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506309161] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:01:32,468 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:01:32,468 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:01:32,468 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138194958] [2023-08-29 01:01:32,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:01:32,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:01:32,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:01:32,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:01:32,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:01:32,513 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 281 [2023-08-29 01:01:32,514 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 01:01:32,514 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:01:32,514 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 281 [2023-08-29 01:01:32,514 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:01:32,556 INFO L130 PetriNetUnfolder]: 23/72 cut-off events. [2023-08-29 01:01:32,557 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:01:32,557 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 01:01:32,558 INFO L137 encePairwiseOnDemand]: 277/281 looper letters, 14 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2023-08-29 01:01:32,558 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 20 transitions, 75 flow [2023-08-29 01:01:32,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:01:32,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:01:32,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-29 01:01:32,560 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43416370106761565 [2023-08-29 01:01:32,560 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-29 01:01:32,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-29 01:01:32,561 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:01:32,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-29 01:01:32,562 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 01:01:32,570 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 01:01:32,571 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 01:01:32,571 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 33 flow. Second operand 3 states and 366 transitions. [2023-08-29 01:01:32,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 20 transitions, 75 flow [2023-08-29 01:01:32,571 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 01:01:32,572 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 52 flow [2023-08-29 01:01:32,572 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 01:01:32,573 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-08-29 01:01:32,573 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 52 flow [2023-08-29 01:01:32,574 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 01:01:32,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:01:32,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:01:32,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:01:32,574 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 01:01:32,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:01:32,575 INFO L85 PathProgramCache]: Analyzing trace with hash 466333908, now seen corresponding path program 1 times [2023-08-29 01:01:32,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:01:32,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265319207] [2023-08-29 01:01:32,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:01:32,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:01:32,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:01:32,621 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 01:01:32,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:01:32,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265319207] [2023-08-29 01:01:32,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [265319207] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:01:32,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:01:32,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:01:32,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014096657] [2023-08-29 01:01:32,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:01:32,623 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:01:32,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:01:32,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:01:32,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:01:32,671 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 281 [2023-08-29 01:01:32,671 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 01:01:32,672 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:01:32,672 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 281 [2023-08-29 01:01:32,672 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:01:32,703 INFO L130 PetriNetUnfolder]: 31/86 cut-off events. [2023-08-29 01:01:32,704 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-29 01:01:32,704 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 01:01:32,705 INFO L137 encePairwiseOnDemand]: 276/281 looper letters, 15 selfloop transitions, 5 changer transitions 3/26 dead transitions. [2023-08-29 01:01:32,705 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 119 flow [2023-08-29 01:01:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:01:32,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:01:32,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-29 01:01:32,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424673784104389 [2023-08-29 01:01:32,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-29 01:01:32,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-29 01:01:32,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:01:32,707 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-29 01:01:32,708 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 01:01:32,710 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 01:01:32,711 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 01:01:32,711 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 52 flow. Second operand 3 states and 373 transitions. [2023-08-29 01:01:32,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 119 flow [2023-08-29 01:01:32,712 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 01:01:32,712 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 80 flow [2023-08-29 01:01:32,712 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 01:01:32,713 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2023-08-29 01:01:32,713 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 80 flow [2023-08-29 01:01:32,714 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 01:01:32,714 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:01:32,714 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:01:32,714 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:01:32,714 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 01:01:32,715 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:01:32,715 INFO L85 PathProgramCache]: Analyzing trace with hash 1459563884, now seen corresponding path program 1 times [2023-08-29 01:01:32,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:01:32,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588186147] [2023-08-29 01:01:32,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:01:32,716 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:01:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:01:32,735 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:01:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:01:32,763 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:01:32,763 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:01:32,764 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-29 01:01:32,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-29 01:01:32,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-08-29 01:01:32,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-08-29 01:01:32,766 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-29 01:01:32,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-29 01:01:32,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-29 01:01:32,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-29 01:01:32,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-29 01:01:32,767 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-29 01:01:32,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-08-29 01:01:32,768 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-08-29 01:01:32,768 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:01:32,768 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 01:01:32,774 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:01:32,774 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:01:32,792 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:01:32 BasicIcfg [2023-08-29 01:01:32,792 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:01:32,793 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:01:32,793 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:01:32,793 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:01:32,794 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:01:28" (3/4) ... [2023-08-29 01:01:32,796 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:01:32,796 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:01:32,797 INFO L158 Benchmark]: Toolchain (without parser) took 6064.15ms. Allocated memory was 69.2MB in the beginning and 100.7MB in the end (delta: 31.5MB). Free memory was 44.0MB in the beginning and 31.0MB in the end (delta: 13.0MB). Peak memory consumption was 45.6MB. Max. memory is 16.1GB. [2023-08-29 01:01:32,797 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:01:32,797 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1010.64ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 43.8MB in the beginning and 49.3MB in the end (delta: -5.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. [2023-08-29 01:01:32,798 INFO L158 Benchmark]: Boogie Procedure Inliner took 56.79ms. Allocated memory is still 83.9MB. Free memory was 49.3MB in the beginning and 46.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:01:32,798 INFO L158 Benchmark]: Boogie Preprocessor took 34.62ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 43.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:01:32,798 INFO L158 Benchmark]: RCFGBuilder took 553.64ms. Allocated memory is still 83.9MB. Free memory was 43.3MB in the beginning and 41.8MB in the end (delta: 1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-29 01:01:32,799 INFO L158 Benchmark]: TraceAbstraction took 4398.20ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 40.7MB in the beginning and 31.5MB in the end (delta: 9.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. [2023-08-29 01:01:32,799 INFO L158 Benchmark]: Witness Printer took 3.04ms. Allocated memory is still 100.7MB. Free memory was 31.5MB in the beginning and 31.0MB in the end (delta: 513.7kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:01:32,801 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 52.4MB. Free memory is still 30.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1010.64ms. Allocated memory was 69.2MB in the beginning and 83.9MB in the end (delta: 14.7MB). Free memory was 43.8MB in the beginning and 49.3MB in the end (delta: -5.5MB). Peak memory consumption was 24.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 56.79ms. Allocated memory is still 83.9MB. Free memory was 49.3MB in the beginning and 46.1MB in the end (delta: 3.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.62ms. Allocated memory is still 83.9MB. Free memory was 46.1MB in the beginning and 43.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 553.64ms. Allocated memory is still 83.9MB. Free memory was 43.3MB in the beginning and 41.8MB in the end (delta: 1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 4398.20ms. Allocated memory was 83.9MB in the beginning and 100.7MB in the end (delta: 16.8MB). Free memory was 40.7MB in the beginning and 31.5MB in the end (delta: 9.2MB). Peak memory consumption was 25.5MB. Max. memory is 16.1GB. * Witness Printer took 3.04ms. Allocated memory is still 100.7MB. Free memory was 31.5MB in the beginning and 31.0MB in the end (delta: 513.7kB). 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: 3.3s, 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.4s, 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 01:01:32,839 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