./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 BEFORE --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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:00:37,687 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:00:37,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:00:37,734 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:00:37,736 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:00:37,739 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:00:37,740 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:00:37,743 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:00:37,745 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:00:37,750 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:00:37,751 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:00:37,752 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:00:37,753 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:00:37,755 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:00:37,756 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:00:37,760 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:00:37,763 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:00:37,764 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:00:37,766 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:00:37,767 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:00:37,770 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:00:37,772 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:00:37,773 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:00:37,773 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:00:37,776 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:00:37,777 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:00:37,778 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:00:37,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:00:37,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:00:37,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:00:37,781 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:00:37,785 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:00:37,786 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:00:37,787 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:00:37,788 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:00:37,789 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:00:37,790 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:00:37,790 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:00:37,790 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:00:37,791 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:00:37,791 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:00:37,793 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:00:37,832 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:00:37,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:00:37,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:00:37,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:00:37,834 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:00:37,835 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:00:37,835 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:00:37,835 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:00:37,835 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:00:37,836 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:00:37,837 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:00:37,837 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:00:37,837 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:00:37,837 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:00:37,837 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:00:37,838 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:00:37,838 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:00:37,838 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:00:37,838 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:00:37,838 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:00:37,838 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:00:37,839 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:00:37,839 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:00:37,839 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:00:37,839 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:00:37,839 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:00:37,840 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:00:37,840 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:00:37,840 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:00:37,840 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:00:37,840 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:00:37,841 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:00:37,841 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:00:37,841 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:00:37,841 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:00:37,842 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:00:37,842 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:00:37,842 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 475c64db2a2029c09985266553634853aa5ae7653363254bdcc8a56a9d27dc04 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:00:38,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:00:38,142 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:00:38,144 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:00:38,145 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:00:38,146 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:00:38,147 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-31 19:00:39,266 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:00:39,546 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:00:39,547 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-1_2b-join.i [2023-08-31 19:00:39,576 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d696743ae/02571160b8164c7486ce57bf0f7480d2/FLAGf46938a9e [2023-08-31 19:00:39,588 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d696743ae/02571160b8164c7486ce57bf0f7480d2 [2023-08-31 19:00:39,590 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:00:39,592 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:00:39,593 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:00:39,593 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:00:39,595 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:00:39,596 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:00:39" (1/1) ... [2023-08-31 19:00:39,597 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@124c75df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:39, skipping insertion in model container [2023-08-31 19:00:39,597 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:00:39" (1/1) ... [2023-08-31 19:00:39,602 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:00:39,658 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:00:40,362 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] [2023-08-31 19:00:40,389 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:00:40,406 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:00:40,455 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] [2023-08-31 19:00:40,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:00:40,590 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:00:40,591 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40 WrapperNode [2023-08-31 19:00:40,591 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:00:40,593 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:00:40,593 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:00:40,593 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:00:40,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,631 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,656 INFO L138 Inliner]: procedures = 480, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 115 [2023-08-31 19:00:40,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:00:40,657 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:00:40,657 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:00:40,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:00:40,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,681 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,684 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,686 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:00:40,691 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:00:40,691 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:00:40,691 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:00:40,692 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (1/1) ... [2023-08-31 19:00:40,696 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:00:40,706 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:00:40,724 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) [2023-08-31 19:00:40,749 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 [2023-08-31 19:00:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:00:40,785 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:00:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:00:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:00:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 19:00:40,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:00:40,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:00:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:00:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-08-31 19:00:40,788 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-08-31 19:00:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:00:40,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:00:40,789 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:00:41,085 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:00:41,086 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:00:41,266 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:00:41,274 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:00:41,275 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-31 19:00:41,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:00:41 BoogieIcfgContainer [2023-08-31 19:00:41,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:00:41,282 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:00:41,282 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:00:41,285 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:00:41,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:00:39" (1/3) ... [2023-08-31 19:00:41,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9075af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:00:41, skipping insertion in model container [2023-08-31 19:00:41,286 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:00:40" (2/3) ... [2023-08-31 19:00:41,286 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a9075af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:00:41, skipping insertion in model container [2023-08-31 19:00:41,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:00:41" (3/3) ... [2023-08-31 19:00:41,288 INFO L112 eAbstractionObserver]: Analyzing ICFG race-1_2b-join.i [2023-08-31 19:00:41,294 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:00:41,302 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:00:41,302 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 10 error locations. [2023-08-31 19:00:41,302 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:00:41,368 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-31 19:00:41,409 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 140 transitions, 288 flow [2023-08-31 19:00:41,482 INFO L130 PetriNetUnfolder]: 5/157 cut-off events. [2023-08-31 19:00:41,483 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:00:41,487 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. [2023-08-31 19:00:41,487 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 140 transitions, 288 flow [2023-08-31 19:00:41,495 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 127 places, 127 transitions, 260 flow [2023-08-31 19:00:41,498 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:00:41,510 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 127 places, 127 transitions, 260 flow [2023-08-31 19:00:41,512 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 127 places, 127 transitions, 260 flow [2023-08-31 19:00:41,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 127 places, 127 transitions, 260 flow [2023-08-31 19:00:41,553 INFO L130 PetriNetUnfolder]: 3/145 cut-off events. [2023-08-31 19:00:41,554 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:00:41,555 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. [2023-08-31 19:00:41,557 INFO L119 LiptonReduction]: Number of co-enabled transitions 888 [2023-08-31 19:00:44,911 INFO L134 LiptonReduction]: Checked pairs total: 2129 [2023-08-31 19:00:44,911 INFO L136 LiptonReduction]: Total number of compositions: 141 [2023-08-31 19:00:44,921 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:00:44,926 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;@37fc6f97, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:00:44,927 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2023-08-31 19:00:44,928 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:00:44,928 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:00:44,928 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:00:44,929 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:00:44,929 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:00:44,933 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:00:44,933 INFO L85 PathProgramCache]: Analyzing trace with hash 490, now seen corresponding path program 1 times [2023-08-31 19:00:44,940 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:00:44,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [815248731] [2023-08-31 19:00:44,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:00:44,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:00:45,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:00:45,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:00:45,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:00:45,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [815248731] [2023-08-31 19:00:45,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [815248731] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:00:45,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:00:45,106 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:00:45,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213127709] [2023-08-31 19:00:45,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:00:45,115 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:00:45,119 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:00:45,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:00:45,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:00:45,142 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 130 out of 281 [2023-08-31 19:00:45,144 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) [2023-08-31 19:00:45,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:00:45,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 130 of 281 [2023-08-31 19:00:45,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:00:45,178 INFO L130 PetriNetUnfolder]: 15/55 cut-off events. [2023-08-31 19:00:45,178 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 19:00:45,179 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. [2023-08-31 19:00:45,180 INFO L137 encePairwiseOnDemand]: 273/281 looper letters, 10 selfloop transitions, 0 changer transitions 2/18 dead transitions. [2023-08-31 19:00:45,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 22 places, 18 transitions, 66 flow [2023-08-31 19:00:45,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:00:45,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:00:45,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 280 transitions. [2023-08-31 19:00:45,191 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.498220640569395 [2023-08-31 19:00:45,192 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 280 transitions. [2023-08-31 19:00:45,192 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 280 transitions. [2023-08-31 19:00:45,193 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:00:45,195 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 280 transitions. [2023-08-31 19:00:45,202 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) [2023-08-31 19:00:45,207 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) [2023-08-31 19:00:45,207 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) [2023-08-31 19:00:45,209 INFO L175 Difference]: Start difference. First operand has 28 places, 26 transitions, 58 flow. Second operand 2 states and 280 transitions. [2023-08-31 19:00:45,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 22 places, 18 transitions, 66 flow [2023-08-31 19:00:45,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 20 places, 18 transitions, 62 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:00:45,213 INFO L231 Difference]: Finished difference. Result has 20 places, 16 transitions, 33 flow [2023-08-31 19:00:45,214 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} [2023-08-31 19:00:45,217 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -8 predicate places. [2023-08-31 19:00:45,218 INFO L495 AbstractCegarLoop]: Abstraction has has 20 places, 16 transitions, 33 flow [2023-08-31 19:00:45,218 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) [2023-08-31 19:00:45,218 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:00:45,218 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:00:45,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:00:45,220 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:00:45,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:00:45,229 INFO L85 PathProgramCache]: Analyzing trace with hash 466316829, now seen corresponding path program 1 times [2023-08-31 19:00:45,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:00:45,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [7909476] [2023-08-31 19:00:45,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:00:45,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:00:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:00:45,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:00:45,416 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:00:45,417 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [7909476] [2023-08-31 19:00:45,417 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [7909476] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:00:45,417 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:00:45,417 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:00:45,417 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097036700] [2023-08-31 19:00:45,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:00:45,418 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:00:45,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:00:45,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:00:45,419 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:00:45,460 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 281 [2023-08-31 19:00:45,460 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) [2023-08-31 19:00:45,461 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:00:45,461 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 281 [2023-08-31 19:00:45,461 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:00:45,491 INFO L130 PetriNetUnfolder]: 23/72 cut-off events. [2023-08-31 19:00:45,491 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:00:45,492 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. [2023-08-31 19:00:45,492 INFO L137 encePairwiseOnDemand]: 277/281 looper letters, 14 selfloop transitions, 3 changer transitions 0/20 dead transitions. [2023-08-31 19:00:45,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 21 places, 20 transitions, 75 flow [2023-08-31 19:00:45,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:00:45,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:00:45,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 366 transitions. [2023-08-31 19:00:45,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43416370106761565 [2023-08-31 19:00:45,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 366 transitions. [2023-08-31 19:00:45,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 366 transitions. [2023-08-31 19:00:45,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:00:45,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 366 transitions. [2023-08-31 19:00:45,497 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) [2023-08-31 19:00:45,499 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) [2023-08-31 19:00:45,500 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) [2023-08-31 19:00:45,500 INFO L175 Difference]: Start difference. First operand has 20 places, 16 transitions, 33 flow. Second operand 3 states and 366 transitions. [2023-08-31 19:00:45,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 21 places, 20 transitions, 75 flow [2023-08-31 19:00:45,500 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 21 places, 20 transitions, 75 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:00:45,501 INFO L231 Difference]: Finished difference. Result has 22 places, 18 transitions, 52 flow [2023-08-31 19:00:45,501 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} [2023-08-31 19:00:45,502 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -6 predicate places. [2023-08-31 19:00:45,502 INFO L495 AbstractCegarLoop]: Abstraction has has 22 places, 18 transitions, 52 flow [2023-08-31 19:00:45,502 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) [2023-08-31 19:00:45,502 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:00:45,503 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:00:45,503 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:00:45,503 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err0ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:00:45,503 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:00:45,504 INFO L85 PathProgramCache]: Analyzing trace with hash 466333908, now seen corresponding path program 1 times [2023-08-31 19:00:45,504 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:00:45,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935731401] [2023-08-31 19:00:45,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:00:45,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:00:45,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:00:45,558 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:00:45,558 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:00:45,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935731401] [2023-08-31 19:00:45,559 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1935731401] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:00:45,559 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:00:45,559 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:00:45,559 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630776686] [2023-08-31 19:00:45,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:00:45,560 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:00:45,560 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:00:45,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:00:45,561 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:00:45,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 117 out of 281 [2023-08-31 19:00:45,605 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) [2023-08-31 19:00:45,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:00:45,605 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 117 of 281 [2023-08-31 19:00:45,605 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:00:45,634 INFO L130 PetriNetUnfolder]: 31/86 cut-off events. [2023-08-31 19:00:45,634 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-31 19:00:45,635 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. [2023-08-31 19:00:45,635 INFO L137 encePairwiseOnDemand]: 276/281 looper letters, 15 selfloop transitions, 5 changer transitions 3/26 dead transitions. [2023-08-31 19:00:45,636 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 24 places, 26 transitions, 119 flow [2023-08-31 19:00:45,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:00:45,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:00:45,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 373 transitions. [2023-08-31 19:00:45,637 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4424673784104389 [2023-08-31 19:00:45,638 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 373 transitions. [2023-08-31 19:00:45,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 373 transitions. [2023-08-31 19:00:45,638 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:00:45,638 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 373 transitions. [2023-08-31 19:00:45,639 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) [2023-08-31 19:00:45,641 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) [2023-08-31 19:00:45,641 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) [2023-08-31 19:00:45,642 INFO L175 Difference]: Start difference. First operand has 22 places, 18 transitions, 52 flow. Second operand 3 states and 373 transitions. [2023-08-31 19:00:45,642 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 24 places, 26 transitions, 119 flow [2023-08-31 19:00:45,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 23 places, 26 transitions, 115 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:00:45,643 INFO L231 Difference]: Finished difference. Result has 24 places, 21 transitions, 80 flow [2023-08-31 19:00:45,643 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} [2023-08-31 19:00:45,644 INFO L281 CegarLoopForPetriNet]: 28 programPoint places, -4 predicate places. [2023-08-31 19:00:45,644 INFO L495 AbstractCegarLoop]: Abstraction has has 24 places, 21 transitions, 80 flow [2023-08-31 19:00:45,645 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) [2023-08-31 19:00:45,645 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:00:45,645 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:00:45,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:00:45,645 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE === [thread1Err0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (and 9 more)] === [2023-08-31 19:00:45,646 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:00:45,646 INFO L85 PathProgramCache]: Analyzing trace with hash 1459563884, now seen corresponding path program 1 times [2023-08-31 19:00:45,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:00:45,646 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967140671] [2023-08-31 19:00:45,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:00:45,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:00:45,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:00:45,673 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:00:45,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:00:45,701 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:00:45,702 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:00:45,703 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (11 of 12 remaining) [2023-08-31 19:00:45,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (10 of 12 remaining) [2023-08-31 19:00:45,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (9 of 12 remaining) [2023-08-31 19:00:45,704 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (8 of 12 remaining) [2023-08-31 19:00:45,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (7 of 12 remaining) [2023-08-31 19:00:45,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (6 of 12 remaining) [2023-08-31 19:00:45,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (5 of 12 remaining) [2023-08-31 19:00:45,705 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (4 of 12 remaining) [2023-08-31 19:00:45,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7ASSERT_VIOLATIONDATA_RACE (3 of 12 remaining) [2023-08-31 19:00:45,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8ASSERT_VIOLATIONDATA_RACE (2 of 12 remaining) [2023-08-31 19:00:45,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 12 remaining) [2023-08-31 19:00:45,706 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thread1Err0ASSERT_VIOLATIONDATA_RACE (0 of 12 remaining) [2023-08-31 19:00:45,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:00:45,707 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-31 19:00:45,712 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:00:45,714 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:00:45,746 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:00:45 BasicIcfg [2023-08-31 19:00:45,747 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:00:45,747 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:00:45,747 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:00:45,748 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:00:45,749 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:00:41" (3/4) ... [2023-08-31 19:00:45,751 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:00:45,751 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:00:45,755 INFO L158 Benchmark]: Toolchain (without parser) took 6162.96ms. Allocated memory was 62.9MB in the beginning and 117.4MB in the end (delta: 54.5MB). Free memory was 31.5MB in the beginning and 76.4MB in the end (delta: -45.0MB). Peak memory consumption was 9.3MB. Max. memory is 16.1GB. [2023-08-31 19:00:45,755 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:00:45,755 INFO L158 Benchmark]: CACSL2BoogieTranslator took 998.71ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 31.2MB in the beginning and 37.4MB in the end (delta: -6.2MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. [2023-08-31 19:00:45,756 INFO L158 Benchmark]: Boogie Procedure Inliner took 63.87ms. Allocated memory is still 79.7MB. Free memory was 37.4MB in the beginning and 34.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:00:45,758 INFO L158 Benchmark]: Boogie Preprocessor took 33.18ms. Allocated memory is still 79.7MB. Free memory was 34.4MB in the beginning and 31.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:00:45,760 INFO L158 Benchmark]: RCFGBuilder took 589.05ms. Allocated memory is still 79.7MB. Free memory was 31.6MB in the beginning and 33.8MB in the end (delta: -2.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-08-31 19:00:45,764 INFO L158 Benchmark]: TraceAbstraction took 4465.14ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 33.0MB in the beginning and 76.4MB in the end (delta: -43.4MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:00:45,765 INFO L158 Benchmark]: Witness Printer took 6.93ms. Allocated memory is still 117.4MB. Free memory is still 76.4MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:00:45,766 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 62.9MB. Free memory is still 41.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 998.71ms. Allocated memory was 62.9MB in the beginning and 79.7MB in the end (delta: 16.8MB). Free memory was 31.2MB in the beginning and 37.4MB in the end (delta: -6.2MB). Peak memory consumption was 26.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 63.87ms. Allocated memory is still 79.7MB. Free memory was 37.4MB in the beginning and 34.4MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 33.18ms. Allocated memory is still 79.7MB. Free memory was 34.4MB in the beginning and 31.6MB in the end (delta: 2.8MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 589.05ms. Allocated memory is still 79.7MB. Free memory was 31.6MB in the beginning and 33.8MB in the end (delta: -2.3MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4465.14ms. Allocated memory was 79.7MB in the beginning and 117.4MB in the end (delta: 37.7MB). Free memory was 33.0MB in the beginning and 76.4MB in the end (delta: -43.4MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 6.93ms. Allocated memory is still 117.4MB. Free memory is still 76.4MB. 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: 4.3s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.5s, 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, 0.1s 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! [2023-08-31 19:00:45,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE