./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:58:51,376 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:58:51,378 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:58:51,421 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:58:51,422 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:58:51,425 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:58:51,426 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:58:51,429 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:58:51,431 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:58:51,435 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:58:51,436 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:58:51,438 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:58:51,439 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:58:51,441 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:58:51,442 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:58:51,448 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:58:51,449 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:58:51,451 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:58:51,452 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:58:51,458 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:58:51,460 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:58:51,461 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:58:51,462 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:58:51,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:58:51,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:58:51,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:58:51,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:58:51,471 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:58:51,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:58:51,473 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:58:51,473 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:58:51,474 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:58:51,475 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:58:51,476 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:58:51,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:58:51,477 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:58:51,477 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:58:51,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:58:51,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:58:51,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:58:51,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:58:51,481 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:58:51,514 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:58:51,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:58:51,516 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:58:51,516 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:58:51,517 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:58:51,517 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:58:51,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:58:51,518 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:58:51,518 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:58:51,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:58:51,519 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:58:51,519 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:58:51,519 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:58:51,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:58:51,520 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:58:51,520 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:58:51,520 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:58:51,520 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:58:51,520 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:58:51,521 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:58:51,521 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:58:51,521 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:58:51,521 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:58:51,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:58:51,522 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:58:51,522 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:58:51,522 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:58:51,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:58:51,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:58:51,523 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:58:51,523 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:58:51,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:58:51,523 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:58:51,524 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:58:51,524 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:58:51,524 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:58:51,524 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:58:51,524 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 120b8e17ecc05129f7277c5998da40ba955c11083c7096c2093845469caad913 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:58:51,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:58:51,846 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:58:51,849 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:58:51,850 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:58:51,850 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:58:51,852 INFO L432 ainManager$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 01:58:53,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:58:53,419 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:58:53,420 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_24-sound_lock.i [2023-08-29 01:58:53,439 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a751558/af796a99848a4ce5bf1a9215de337023/FLAGa9026fc56 [2023-08-29 01:58:53,457 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4a751558/af796a99848a4ce5bf1a9215de337023 [2023-08-29 01:58:53,460 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:58:53,461 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:58:53,464 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:58:53,464 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:58:53,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:58:53,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:58:53" (1/1) ... [2023-08-29 01:58:53,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@460e438e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:53, skipping insertion in model container [2023-08-29 01:58:53,473 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:58:53" (1/1) ... [2023-08-29 01:58:53,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:58:53,528 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:58:53,910 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:58:53,925 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:58:54,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:58:54,098 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:58:54,098 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54 WrapperNode [2023-08-29 01:58:54,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:58:54,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:58:54,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:58:54,100 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:58:54,106 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,130 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,148 INFO L138 Inliner]: procedures = 263, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-08-29 01:58:54,149 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:58:54,150 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:58:54,150 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:58:54,150 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:58:54,157 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,158 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,160 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,161 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,166 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,169 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,170 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:58:54,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:58:54,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:58:54,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:58:54,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (1/1) ... [2023-08-29 01:58:54,178 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:58:54,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:58:54,198 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 01:58:54,229 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 01:58:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:58:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:58:54,246 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:58:54,247 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2023-08-29 01:58:54,248 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2023-08-29 01:58:54,248 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:58:54,249 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:58:54,249 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:58:54,250 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:58:54,385 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:58:54,387 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:58:54,543 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:58:54,548 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:58:54,549 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-08-29 01:58:54,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:54 BoogieIcfgContainer [2023-08-29 01:58:54,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:58:54,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:58:54,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:58:54,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:58:54,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:58:53" (1/3) ... [2023-08-29 01:58:54,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcf4851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:54, skipping insertion in model container [2023-08-29 01:58:54,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:58:54" (2/3) ... [2023-08-29 01:58:54,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fcf4851 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:58:54, skipping insertion in model container [2023-08-29 01:58:54,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:54" (3/3) ... [2023-08-29 01:58:54,558 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_24-sound_lock.i [2023-08-29 01:58:54,564 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:58:54,573 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:58:54,573 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 5 error locations. [2023-08-29 01:58:54,573 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:58:54,612 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2023-08-29 01:58:54,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 80 places, 77 transitions, 162 flow [2023-08-29 01:58:54,671 INFO L130 PetriNetUnfolder]: 1/76 cut-off events. [2023-08-29 01:58:54,672 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-29 01:58:54,675 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 01:58:54,678 INFO L82 GeneralOperation]: Start removeDead. Operand has 80 places, 77 transitions, 162 flow [2023-08-29 01:58:54,682 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 72 places, 69 transitions, 141 flow [2023-08-29 01:58:54,686 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:58:54,695 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 72 places, 69 transitions, 141 flow [2023-08-29 01:58:54,698 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 72 places, 69 transitions, 141 flow [2023-08-29 01:58:54,698 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 72 places, 69 transitions, 141 flow [2023-08-29 01:58:54,721 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2023-08-29 01:58:54,721 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:54,722 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 01:58:54,723 INFO L119 LiptonReduction]: Number of co-enabled transitions 630 [2023-08-29 01:58:57,585 INFO L134 LiptonReduction]: Checked pairs total: 2645 [2023-08-29 01:58:57,586 INFO L136 LiptonReduction]: Total number of compositions: 53 [2023-08-29 01:58:57,598 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:58:57,603 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;@1e610c7c, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:58:57,603 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-08-29 01:58:57,606 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-29 01:58:57,607 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:57,607 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:57,607 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:58:57,608 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 01:58:57,612 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:57,612 INFO L85 PathProgramCache]: Analyzing trace with hash 244565300, now seen corresponding path program 1 times [2023-08-29 01:58:57,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:57,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572219379] [2023-08-29 01:58:57,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:57,621 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:57,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:57,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:57,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:57,820 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572219379] [2023-08-29 01:58:57,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572219379] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:57,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:57,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:58:57,823 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932484658] [2023-08-29 01:58:57,823 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:57,829 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:58:57,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:57,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:58:57,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:58:57,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 130 [2023-08-29 01:58:57,884 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 01:58:57,885 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:57,885 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 130 [2023-08-29 01:58:57,886 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:57,946 INFO L130 PetriNetUnfolder]: 54/148 cut-off events. [2023-08-29 01:58:57,946 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:58:57,947 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 01:58:57,949 INFO L137 encePairwiseOnDemand]: 121/130 looper letters, 24 selfloop transitions, 6 changer transitions 0/33 dead transitions. [2023-08-29 01:58:57,949 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 26 places, 33 transitions, 129 flow [2023-08-29 01:58:57,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:58:57,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:58:57,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 235 transitions. [2023-08-29 01:58:57,961 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6025641025641025 [2023-08-29 01:58:57,962 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 235 transitions. [2023-08-29 01:58:57,962 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 235 transitions. [2023-08-29 01:58:57,963 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:57,965 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 235 transitions. [2023-08-29 01:58:57,978 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 01:58:57,984 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 01:58:57,985 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 01:58:57,987 INFO L175 Difference]: Start difference. First operand has 25 places, 21 transitions, 45 flow. Second operand 3 states and 235 transitions. [2023-08-29 01:58:57,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 26 places, 33 transitions, 129 flow [2023-08-29 01:58:57,989 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 01:58:57,992 INFO L231 Difference]: Finished difference. Result has 27 places, 26 transitions, 94 flow [2023-08-29 01:58:57,993 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 01:58:57,998 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 2 predicate places. [2023-08-29 01:58:57,999 INFO L495 AbstractCegarLoop]: Abstraction has has 27 places, 26 transitions, 94 flow [2023-08-29 01:58:58,000 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 01:58:58,000 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:58,000 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:58,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:58:58,001 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 01:58:58,002 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:58,003 INFO L85 PathProgramCache]: Analyzing trace with hash 1580540783, now seen corresponding path program 1 times [2023-08-29 01:58:58,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:58,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143098463] [2023-08-29 01:58:58,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:58,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:58,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:58,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:58,102 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:58,102 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143098463] [2023-08-29 01:58:58,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143098463] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:58,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:58,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:58:58,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039882899] [2023-08-29 01:58:58,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:58,105 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:58:58,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:58,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:58:58,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:58:58,127 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 67 out of 130 [2023-08-29 01:58:58,130 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 01:58:58,130 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:58,130 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 67 of 130 [2023-08-29 01:58:58,130 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:58,170 INFO L130 PetriNetUnfolder]: 62/167 cut-off events. [2023-08-29 01:58:58,170 INFO L131 PetriNetUnfolder]: For 55/55 co-relation queries the response was YES. [2023-08-29 01:58:58,172 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 01:58:58,172 INFO L137 encePairwiseOnDemand]: 124/130 looper letters, 19 selfloop transitions, 7 changer transitions 2/35 dead transitions. [2023-08-29 01:58:58,173 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 35 transitions, 178 flow [2023-08-29 01:58:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:58:58,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:58:58,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 225 transitions. [2023-08-29 01:58:58,175 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5769230769230769 [2023-08-29 01:58:58,175 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 225 transitions. [2023-08-29 01:58:58,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 225 transitions. [2023-08-29 01:58:58,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:58,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 225 transitions. [2023-08-29 01:58:58,176 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 01:58:58,177 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 01:58:58,178 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 01:58:58,178 INFO L175 Difference]: Start difference. First operand has 27 places, 26 transitions, 94 flow. Second operand 3 states and 225 transitions. [2023-08-29 01:58:58,178 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 35 transitions, 178 flow [2023-08-29 01:58:58,180 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 01:58:58,181 INFO L231 Difference]: Finished difference. Result has 29 places, 31 transitions, 138 flow [2023-08-29 01:58:58,181 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 01:58:58,182 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 4 predicate places. [2023-08-29 01:58:58,182 INFO L495 AbstractCegarLoop]: Abstraction has has 29 places, 31 transitions, 138 flow [2023-08-29 01:58:58,182 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 01:58:58,182 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:58,182 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:58,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:58:58,183 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 01:58:58,183 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:58,184 INFO L85 PathProgramCache]: Analyzing trace with hash -2134500117, now seen corresponding path program 1 times [2023-08-29 01:58:58,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:58,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190468007] [2023-08-29 01:58:58,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:58,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:58,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:58:58,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:58:58,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:58:58,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190468007] [2023-08-29 01:58:58,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190468007] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:58:58,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:58:58,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:58:58,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275091145] [2023-08-29 01:58:58,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:58:58,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:58:58,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:58:58,220 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:58:58,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:58:58,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 66 out of 130 [2023-08-29 01:58:58,235 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 01:58:58,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:58:58,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 66 of 130 [2023-08-29 01:58:58,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:58:58,272 INFO L130 PetriNetUnfolder]: 60/161 cut-off events. [2023-08-29 01:58:58,273 INFO L131 PetriNetUnfolder]: For 119/126 co-relation queries the response was YES. [2023-08-29 01:58:58,274 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 01:58:58,274 INFO L137 encePairwiseOnDemand]: 125/130 looper letters, 17 selfloop transitions, 7 changer transitions 7/39 dead transitions. [2023-08-29 01:58:58,275 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 31 places, 39 transitions, 234 flow [2023-08-29 01:58:58,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:58:58,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:58:58,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 219 transitions. [2023-08-29 01:58:58,277 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5615384615384615 [2023-08-29 01:58:58,277 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 219 transitions. [2023-08-29 01:58:58,277 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 219 transitions. [2023-08-29 01:58:58,277 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:58:58,278 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 219 transitions. [2023-08-29 01:58:58,278 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 01:58:58,280 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 01:58:58,280 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 01:58:58,280 INFO L175 Difference]: Start difference. First operand has 29 places, 31 transitions, 138 flow. Second operand 3 states and 219 transitions. [2023-08-29 01:58:58,280 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 31 places, 39 transitions, 234 flow [2023-08-29 01:58:58,282 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 01:58:58,283 INFO L231 Difference]: Finished difference. Result has 30 places, 30 transitions, 147 flow [2023-08-29 01:58:58,284 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 01:58:58,284 INFO L281 CegarLoopForPetriNet]: 25 programPoint places, 5 predicate places. [2023-08-29 01:58:58,284 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 30 transitions, 147 flow [2023-08-29 01:58:58,285 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 01:58:58,285 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:58:58,285 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:58:58,285 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:58:58,286 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 01:58:58,286 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:58:58,286 INFO L85 PathProgramCache]: Analyzing trace with hash -92181228, now seen corresponding path program 1 times [2023-08-29 01:58:58,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:58:58,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171233579] [2023-08-29 01:58:58,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:58:58,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:58:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:58:58,314 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:58:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:58:58,346 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:58:58,346 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:58:58,347 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (7 of 8 remaining) [2023-08-29 01:58:58,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (6 of 8 remaining) [2023-08-29 01:58:58,349 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (5 of 8 remaining) [2023-08-29 01:58:58,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 8 remaining) [2023-08-29 01:58:58,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 8 remaining) [2023-08-29 01:58:58,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (2 of 8 remaining) [2023-08-29 01:58:58,350 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr0ASSERT_VIOLATIONDATA_RACE (1 of 8 remaining) [2023-08-29 01:58:58,351 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t_funErr1ASSERT_VIOLATIONDATA_RACE (0 of 8 remaining) [2023-08-29 01:58:58,351 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:58:58,351 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2023-08-29 01:58:58,358 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:58:58,358 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:58:58,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:58:58 BasicIcfg [2023-08-29 01:58:58,394 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:58:58,395 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:58:58,396 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:58:58,396 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:58:58,397 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:58:54" (3/4) ... [2023-08-29 01:58:58,399 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:58:58,399 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:58:58,400 INFO L158 Benchmark]: Toolchain (without parser) took 4938.73ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 49.5MB in the beginning and 75.5MB in the end (delta: -26.0MB). Peak memory consumption was 9.2MB. Max. memory is 16.1GB. [2023-08-29 01:58:58,403 INFO L158 Benchmark]: CDTParser took 0.93ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:58:58,404 INFO L158 Benchmark]: CACSL2BoogieTranslator took 634.89ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 40.1MB in the end (delta: 9.2MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. [2023-08-29 01:58:58,404 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.32ms. Allocated memory is still 73.4MB. Free memory was 40.1MB in the beginning and 37.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:58:58,404 INFO L158 Benchmark]: Boogie Preprocessor took 22.28ms. Allocated memory is still 73.4MB. Free memory was 37.8MB in the beginning and 36.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:58:58,405 INFO L158 Benchmark]: RCFGBuilder took 378.03ms. Allocated memory is still 73.4MB. Free memory was 36.2MB in the beginning and 43.4MB in the end (delta: -7.2MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. [2023-08-29 01:58:58,408 INFO L158 Benchmark]: TraceAbstraction took 3841.77ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 42.7MB in the beginning and 75.5MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:58:58,408 INFO L158 Benchmark]: Witness Printer took 5.01ms. Allocated memory is still 107.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:58:58,410 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.93ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 634.89ms. Allocated memory is still 73.4MB. Free memory was 49.2MB in the beginning and 40.1MB in the end (delta: 9.2MB). Peak memory consumption was 19.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.32ms. Allocated memory is still 73.4MB. Free memory was 40.1MB in the beginning and 37.8MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 22.28ms. Allocated memory is still 73.4MB. Free memory was 37.8MB in the beginning and 36.2MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 378.03ms. Allocated memory is still 73.4MB. Free memory was 36.2MB in the beginning and 43.4MB in the end (delta: -7.2MB). Peak memory consumption was 12.9MB. Max. memory is 16.1GB. * TraceAbstraction took 3841.77ms. Allocated memory was 73.4MB in the beginning and 107.0MB in the end (delta: 33.6MB). Free memory was 42.7MB in the beginning and 75.5MB in the end (delta: -32.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 5.01ms. Allocated memory is still 107.0MB. Free memory is still 75.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.9s, 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: 3.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.0s, 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, 0.2s 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 01:58:58,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE