./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.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 120b8e17ecc05129f7277c5998da40ba955c11083c7096c2093845469caad913 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 17:29:10,560 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:29:10,561 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:29:10,583 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:29:10,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:29:10,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:29:10,589 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:29:10,591 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:29:10,593 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:29:10,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:29:10,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:29:10,599 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:29:10,600 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:29:10,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:29:10,603 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:29:10,607 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:29:10,608 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:29:10,609 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:29:10,611 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:29:10,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:29:10,614 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:29:10,615 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:29:10,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:29:10,616 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:29:10,621 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:29:10,622 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:29:10,622 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:29:10,623 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:29:10,623 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:29:10,624 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:29:10,628 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:29:10,628 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:29:10,629 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:29:10,630 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:29:10,631 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:29:10,631 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:29:10,632 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:29:10,632 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:29:10,632 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:29:10,632 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:29:10,633 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:29:10,634 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:29:10,656 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:29:10,657 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:29:10,658 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:29:10,658 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:29:10,659 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:29:10,659 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:29:10,659 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:29:10,659 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:29:10,660 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:29:10,660 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:29:10,660 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:29:10,660 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:29:10,661 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:29:10,661 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:29:10,661 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:29:10,661 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:29:10,661 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:29:10,661 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:29:10,661 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:29:10,662 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:29:10,662 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:29:10,662 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:29:10,662 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:29:10,662 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:29:10,662 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:29:10,662 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:29:10,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:10,663 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:29:10,663 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:29:10,663 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:29:10,663 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:29:10,663 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:29:10,664 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:29:10,664 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:29:10,664 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:29:10,664 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:29:10,664 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:29:10,664 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 120b8e17ecc05129f7277c5998da40ba955c11083c7096c2093845469caad913 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:29:10,877 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:29:10,893 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:29:10,895 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:29:10,895 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:29:10,896 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:29:10,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.i [2023-08-29 17:29:11,794 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:29:11,979 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:29:11,980 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.i [2023-08-29 17:29:11,998 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a07f194d/6b4999878e6648a7b46815573add906c/FLAG241da93bd [2023-08-29 17:29:12,007 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a07f194d/6b4999878e6648a7b46815573add906c [2023-08-29 17:29:12,008 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:29:12,009 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:29:12,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:29:12,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:29:12,016 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:29:12,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31674b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12, skipping insertion in model container [2023-08-29 17:29:12,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:29:12,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:29:12,351 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:29:12,361 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:29:12,392 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:29:12,464 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:29:12,465 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12 WrapperNode [2023-08-29 17:29:12,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:29:12,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:12,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:29:12,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:29:12,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,494 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,517 INFO L138 Inliner]: procedures = 263, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-08-29 17:29:12,517 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:12,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:29:12,518 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:29:12,518 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:29:12,524 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,525 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,533 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,543 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,546 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,549 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:29:12,557 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:29:12,557 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:29:12,557 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:29:12,558 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (1/1) ... [2023-08-29 17:29:12,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:12,569 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:29:12,580 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 17:29:12,584 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 17:29:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:29:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:29:12,603 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:29:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:29:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:29:12,604 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:29:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 17:29:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 17:29:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:29:12,605 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:29:12,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:29:12,606 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 17:29:12,713 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:29:12,714 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:29:12,867 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:29:12,871 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:29:12,872 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 17:29:12,873 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:12 BoogieIcfgContainer [2023-08-29 17:29:12,873 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:29:12,874 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:29:12,874 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:29:12,876 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:29:12,876 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:29:12" (1/3) ... [2023-08-29 17:29:12,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b1b36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:12, skipping insertion in model container [2023-08-29 17:29:12,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:12" (2/3) ... [2023-08-29 17:29:12,877 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78b1b36e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:12, skipping insertion in model container [2023-08-29 17:29:12,877 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:12" (3/3) ... [2023-08-29 17:29:12,878 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_24-sound_lock.i [2023-08-29 17:29:12,882 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:29:12,896 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:29:12,896 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 17:29:12,896 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:29:12,930 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 17:29:12,950 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 77 transitions, 162 flow [2023-08-29 17:29:12,989 INFO L130 PetriNetUnfolder]: 1/76 cut-off events. [2023-08-29 17:29:12,990 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 17:29:12,992 INFO L83 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 76 events. 1/76 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/70 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2023-08-29 17:29:12,992 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 77 transitions, 162 flow [2023-08-29 17:29:12,995 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 69 transitions, 141 flow [2023-08-29 17:29:12,997 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:29:13,003 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions, 141 flow [2023-08-29 17:29:13,004 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 69 transitions, 141 flow [2023-08-29 17:29:13,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions, 141 flow [2023-08-29 17:29:13,016 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2023-08-29 17:29:13,017 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:13,017 INFO L83 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 41 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2023-08-29 17:29:13,017 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-08-29 17:29:15,221 INFO L134 LiptonReduction]: Checked pairs total: 2645 [2023-08-29 17:29:15,221 INFO L136 LiptonReduction]: Total number of compositions: 53 [2023-08-29 17:29:15,231 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:29:15,235 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;@1c856c3f, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:29:15,235 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 17:29:15,237 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 17:29:15,237 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:15,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:15,238 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:29:15,238 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t_funErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:15,241 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:15,241 INFO L85 PathProgramCache]: Analyzing trace with hash 244565300, now seen corresponding path program 1 times [2023-08-29 17:29:15,247 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:15,247 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784540084] [2023-08-29 17:29:15,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:15,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:15,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:15,442 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 17:29:15,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:15,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784540084] [2023-08-29 17:29:15,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784540084] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:15,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:15,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:15,446 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944914275] [2023-08-29 17:29:15,446 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:15,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:15,455 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:15,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:15,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:15,493 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 130 [2023-08-29 17:29:15,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 25 places, 21 transitions, 45 flow. Second operand has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 17:29:15,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:15,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 130 [2023-08-29 17:29:15,496 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:15,559 INFO L130 PetriNetUnfolder]: 54/148 cut-off events. [2023-08-29 17:29:15,560 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:15,561 INFO L83 FinitePrefix]: Finished finitePrefix Result has 284 conditions, 148 events. 54/148 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 603 event pairs, 21 based on Foata normal form. 0/138 useless extension candidates. Maximal degree in co-relation 275. Up to 67 conditions per place. [2023-08-29 17:29:15,563 INFO L137 encePairwiseOnDemand]: 121/130 looper letters, 24 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2023-08-29 17:29:15,563 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 129 flow [2023-08-29 17:29:15,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:15,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:15,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-08-29 17:29:15,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6025641025641025 [2023-08-29 17:29:15,574 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-08-29 17:29:15,574 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-08-29 17:29:15,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:15,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-08-29 17:29:15,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 78.33333333333333) internal successors, (235), 3 states have internal predecessors, (235), 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 17:29:15,585 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 17:29:15,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 17:29:15,586 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 235 transitions. [2023-08-29 17:29:15,587 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 129 flow [2023-08-29 17:29:15,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 33 transitions, 128 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:29:15,596 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 94 flow [2023-08-29 17:29:15,597 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=42, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=94, PETRI_PLACES=27, PETRI_TRANSITIONS=26} [2023-08-29 17:29:15,599 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-08-29 17:29:15,600 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 94 flow [2023-08-29 17:29:15,600 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.66666666666667) internal successors, (206), 3 states have internal predecessors, (206), 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 17:29:15,600 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:15,600 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:15,600 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:29:15,601 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t_funErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:15,602 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:15,602 INFO L85 PathProgramCache]: Analyzing trace with hash 1580540783, now seen corresponding path program 1 times [2023-08-29 17:29:15,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:15,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052109515] [2023-08-29 17:29:15,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:15,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:15,672 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 17:29:15,673 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:15,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052109515] [2023-08-29 17:29:15,674 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052109515] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:15,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:15,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:15,675 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1663085862] [2023-08-29 17:29:15,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:15,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:15,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:15,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:15,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:15,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 130 [2023-08-29 17:29:15,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 27 places, 26 transitions, 94 flow. Second operand has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 17:29:15,695 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:15,695 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 130 [2023-08-29 17:29:15,695 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:15,762 INFO L130 PetriNetUnfolder]: 62/167 cut-off events. [2023-08-29 17:29:15,762 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2023-08-29 17:29:15,763 INFO L83 FinitePrefix]: Finished finitePrefix Result has 404 conditions, 167 events. 62/167 cut-off events. For 55/55 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 680 event pairs, 27 based on Foata normal form. 0/160 useless extension candidates. Maximal degree in co-relation 394. Up to 108 conditions per place. [2023-08-29 17:29:15,763 INFO L137 encePairwiseOnDemand]: 124/130 looper letters, 19 selfloop transitions, 7 changer transitions 2/35 dead transitions. [2023-08-29 17:29:15,763 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 35 transitions, 178 flow [2023-08-29 17:29:15,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:15,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:15,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2023-08-29 17:29:15,765 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5769230769230769 [2023-08-29 17:29:15,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 225 transitions. [2023-08-29 17:29:15,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 225 transitions. [2023-08-29 17:29:15,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:15,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 225 transitions. [2023-08-29 17:29:15,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 75.0) internal successors, (225), 3 states have internal predecessors, (225), 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 17:29:15,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 17:29:15,767 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 17:29:15,767 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 94 flow. Second operand 3 states and 225 transitions. [2023-08-29 17:29:15,767 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 35 transitions, 178 flow [2023-08-29 17:29:15,768 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 27 places, 35 transitions, 162 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:29:15,769 INFO L231 Difference]: Finished difference. Result has 29 places, 31 transitions, 138 flow [2023-08-29 17:29:15,769 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=29, PETRI_TRANSITIONS=31} [2023-08-29 17:29:15,769 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2023-08-29 17:29:15,769 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 31 transitions, 138 flow [2023-08-29 17:29:15,770 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.33333333333333) internal successors, (208), 3 states have internal predecessors, (208), 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 17:29:15,770 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:15,770 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:15,770 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:29:15,770 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:15,770 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:15,770 INFO L85 PathProgramCache]: Analyzing trace with hash -2134500117, now seen corresponding path program 1 times [2023-08-29 17:29:15,770 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:15,770 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [559263560] [2023-08-29 17:29:15,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:15,771 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:15,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:15,802 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 17:29:15,802 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:15,802 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [559263560] [2023-08-29 17:29:15,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [559263560] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:15,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:15,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:15,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [694733798] [2023-08-29 17:29:15,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:15,803 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:15,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:15,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:15,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:15,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 130 [2023-08-29 17:29:15,814 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 29 places, 31 transitions, 138 flow. Second operand has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 17:29:15,814 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:15,814 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 130 [2023-08-29 17:29:15,814 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:15,838 INFO L130 PetriNetUnfolder]: 60/161 cut-off events. [2023-08-29 17:29:15,838 INFO L131 PetriNetUnfolder]: For 119/126 co-relation queries the response was YES. [2023-08-29 17:29:15,839 INFO L83 FinitePrefix]: Finished finitePrefix Result has 463 conditions, 161 events. 60/161 cut-off events. For 119/126 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 654 event pairs, 24 based on Foata normal form. 2/154 useless extension candidates. Maximal degree in co-relation 452. Up to 114 conditions per place. [2023-08-29 17:29:15,839 INFO L137 encePairwiseOnDemand]: 125/130 looper letters, 17 selfloop transitions, 7 changer transitions 7/39 dead transitions. [2023-08-29 17:29:15,839 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 39 transitions, 234 flow [2023-08-29 17:29:15,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:15,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:15,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-08-29 17:29:15,842 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5615384615384615 [2023-08-29 17:29:15,842 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-08-29 17:29:15,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-08-29 17:29:15,843 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:15,843 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-08-29 17:29:15,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 73.0) internal successors, (219), 3 states have internal predecessors, (219), 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 17:29:15,844 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 17:29:15,844 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 130.0) internal successors, (520), 4 states have internal predecessors, (520), 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 17:29:15,844 INFO L175 Difference]: Start difference. First operand has 29 places, 31 transitions, 138 flow. Second operand 3 states and 219 transitions. [2023-08-29 17:29:15,844 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 39 transitions, 234 flow [2023-08-29 17:29:15,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 29 places, 39 transitions, 214 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:29:15,846 INFO L231 Difference]: Finished difference. Result has 30 places, 30 transitions, 147 flow [2023-08-29 17:29:15,846 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=124, PETRI_DIFFERENCE_MINUEND_PLACES=27, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=30, PETRI_TRANSITIONS=30} [2023-08-29 17:29:15,847 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-08-29 17:29:15,847 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 30 transitions, 147 flow [2023-08-29 17:29:15,847 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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 17:29:15,847 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:15,847 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:15,847 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:29:15,847 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (and 5 more)] === [2023-08-29 17:29:15,848 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:15,848 INFO L85 PathProgramCache]: Analyzing trace with hash -92181228, now seen corresponding path program 1 times [2023-08-29 17:29:15,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:15,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [561416676] [2023-08-29 17:29:15,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:15,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:15,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:29:15,861 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:29:15,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:29:15,881 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:29:15,882 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:29:15,882 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 17:29:15,883 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 17:29:15,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 17:29:15,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 17:29:15,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 17:29:15,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 17:29:15,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 17:29:15,884 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 17:29:15,885 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:29:15,885 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 17:29:15,889 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:29:15,889 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:29:15,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:29:15 BasicIcfg [2023-08-29 17:29:15,918 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:29:15,919 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:29:15,919 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:29:15,921 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:29:15,922 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:12" (3/4) ... [2023-08-29 17:29:15,923 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:29:15,923 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:29:15,925 INFO L158 Benchmark]: Toolchain (without parser) took 3915.24ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 39.4MB in the beginning and 61.5MB in the end (delta: -22.0MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:15,926 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:15,926 INFO L158 Benchmark]: CACSL2BoogieTranslator took 451.43ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 49.3MB in the end (delta: -10.0MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. [2023-08-29 17:29:15,926 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.57ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 46.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:29:15,926 INFO L158 Benchmark]: Boogie Preprocessor took 38.47ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 45.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:15,928 INFO L158 Benchmark]: RCFGBuilder took 316.00ms. Allocated memory is still 73.4MB. Free memory was 45.3MB in the beginning and 31.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2023-08-29 17:29:15,930 INFO L158 Benchmark]: TraceAbstraction took 3044.30ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 31.3MB in the beginning and 62.1MB in the end (delta: -30.9MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. [2023-08-29 17:29:15,933 INFO L158 Benchmark]: Witness Printer took 5.28ms. Allocated memory is still 88.1MB. Free memory was 62.1MB in the beginning and 61.5MB in the end (delta: 656.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:15,935 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 54.5MB. Free memory is still 32.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 451.43ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 49.3MB in the end (delta: -10.0MB). Peak memory consumption was 12.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 51.57ms. Allocated memory is still 73.4MB. Free memory was 49.3MB in the beginning and 46.9MB in the end (delta: 2.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 38.47ms. Allocated memory is still 73.4MB. Free memory was 46.9MB in the beginning and 45.3MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 316.00ms. Allocated memory is still 73.4MB. Free memory was 45.3MB in the beginning and 31.9MB in the end (delta: 13.4MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * TraceAbstraction took 3044.30ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 31.3MB in the beginning and 62.1MB in the end (delta: -30.9MB). Peak memory consumption was 15.8MB. Max. memory is 16.1GB. * Witness Printer took 5.28ms. Allocated memory is still 88.1MB. Free memory was 62.1MB in the beginning and 61.5MB in the end (delta: 656.9kB). 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: 2.2s, 72 PlacesBefore, 25 PlacesAfterwards, 69 TransitionsBefore, 21 TransitionsAfterwards, 630 CoEnabledTransitionPairs, 6 FixpointIterations, 31 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 53 TotalNumberOfCompositions, 2645 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 950, independent: 729, independent conditional: 0, independent unconditional: 729, dependent: 221, dependent conditional: 0, dependent unconditional: 221, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 341, independent: 308, independent conditional: 0, independent unconditional: 308, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 950, independent: 421, independent conditional: 0, independent unconditional: 421, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 341, unknown conditional: 0, unknown unconditional: 341] , Statistics on independence cache: Total cache size (in pairs): 73, Positive cache size: 53, Positive conditional cache size: 0, Positive unconditional cache size: 53, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 934]: Data race detected Data race detected The following path leads to a data race: [L918] 0 int myglobal; [L919] 0 pthread_mutex_t mutex1 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L920] 0 pthread_mutex_t mutex2 = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L928] 0 int i = __VERIFIER_nondet_int(); [L929] 0 pthread_t id; [L930] 0 pthread_mutex_t *m = &mutex1; [L931] COND TRUE 0 \read(i) [L931] 0 m = &mutex2 [L932] FCALL, FORK 0 pthread_create(&id, ((void *)0), t_fun, ((void *)0)) VAL [arg={0:0}, i=-2, id={3:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0, pthread_create(&id, ((void *)0), t_fun, ((void *)0))=-1] [L923] EXPR 1 myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L934] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, i=-2, id={3:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=0] [L923] 1 myglobal=myglobal+1 VAL [arg={0:0}, arg={0:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] [L934] 0 myglobal+1 VAL [arg={0:0}, arg={0:0}, i=-2, id={3:0}, m={2:0}, mutex1={1:0}, mutex2={2:0}, myglobal=1, myglobal=myglobal+1=25] Now there is a data race on ~myglobal~0 between C: myglobal=myglobal+1 [923] and C: myglobal+1 [934] - UnprovableResult [Line: 934]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 936]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 932]: 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. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 923]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 94 locations, 8 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: 2.9s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 88 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 33 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 7 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 131 IncrementalHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 7 mSolverCounterUnsat, 4 mSDtfsCounter, 131 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=147occurred in iteration=3, InterpolantAutomatonStates: 9, 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, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 24 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 17:29:15,967 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