./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/04-mutex_35-trylock_rc.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_35-trylock_rc.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 bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 --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 17:29:25,164 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 17:29:25,165 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 17:29:25,198 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 17:29:25,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 17:29:25,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 17:29:25,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 17:29:25,205 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 17:29:25,207 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 17:29:25,210 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 17:29:25,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 17:29:25,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 17:29:25,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 17:29:25,214 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 17:29:25,215 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 17:29:25,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 17:29:25,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 17:29:25,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 17:29:25,229 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 17:29:25,233 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 17:29:25,234 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 17:29:25,234 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 17:29:25,235 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 17:29:25,236 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 17:29:25,240 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 17:29:25,241 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 17:29:25,241 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 17:29:25,242 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 17:29:25,242 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 17:29:25,243 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 17:29:25,243 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 17:29:25,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 17:29:25,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 17:29:25,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 17:29:25,249 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 17:29:25,249 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 17:29:25,250 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 17:29:25,250 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 17:29:25,250 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 17:29:25,251 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 17:29:25,251 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 17:29:25,252 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 17:29:25,277 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 17:29:25,277 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 17:29:25,278 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 17:29:25,278 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 17:29:25,279 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 17:29:25,279 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 17:29:25,279 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 17:29:25,279 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 17:29:25,279 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 17:29:25,280 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 17:29:25,280 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 17:29:25,280 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 17:29:25,281 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 17:29:25,281 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 17:29:25,281 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 17:29:25,281 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 17:29:25,281 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 17:29:25,281 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 17:29:25,281 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 17:29:25,282 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 17:29:25,282 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 17:29:25,282 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 17:29:25,282 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 17:29:25,282 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 17:29:25,282 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 17:29:25,282 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 17:29:25,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:25,283 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 17:29:25,283 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 17:29:25,283 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 17:29:25,283 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 17:29:25,283 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 17:29:25,283 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 17:29:25,284 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 17:29:25,284 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 17:29:25,284 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 17:29:25,284 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 17:29:25,284 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 17:29:25,501 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 17:29:25,513 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 17:29:25,514 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 17:29:25,515 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 17:29:25,515 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 17:29:25,516 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_35-trylock_rc.i [2023-08-29 17:29:26,353 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 17:29:26,634 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 17:29:26,635 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_35-trylock_rc.i [2023-08-29 17:29:26,653 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e50e6ac11/6a61a0c91abd44749a101fc665e700e4/FLAGe078176ed [2023-08-29 17:29:26,665 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e50e6ac11/6a61a0c91abd44749a101fc665e700e4 [2023-08-29 17:29:26,667 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 17:29:26,668 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 17:29:26,670 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 17:29:26,670 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 17:29:26,672 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 17:29:26,673 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:29:26" (1/1) ... [2023-08-29 17:29:26,674 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45590dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:26, skipping insertion in model container [2023-08-29 17:29:26,674 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 05:29:26" (1/1) ... [2023-08-29 17:29:26,678 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 17:29:26,734 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 17:29:27,196 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:29:27,204 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 17:29:27,243 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 17:29:27,335 WARN L667 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:29:27,336 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:29:27,336 WARN L667 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:29:27,336 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 17:29:27,340 INFO L208 MainTranslator]: Completed translation [2023-08-29 17:29:27,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27 WrapperNode [2023-08-29 17:29:27,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 17:29:27,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:27,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 17:29:27,342 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 17:29:27,346 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,384 INFO L138 Inliner]: procedures = 524, calls = 67, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2023-08-29 17:29:27,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 17:29:27,387 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 17:29:27,387 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 17:29:27,387 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 17:29:27,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,404 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,410 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,411 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,415 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 17:29:27,416 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 17:29:27,416 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 17:29:27,416 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 17:29:27,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (1/1) ... [2023-08-29 17:29:27,430 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 17:29:27,438 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 17:29:27,447 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 17:29:27,462 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 17:29:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-08-29 17:29:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-08-29 17:29:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-29 17:29:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-08-29 17:29:27,469 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-08-29 17:29:27,469 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 17:29:27,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-29 17:29:27,470 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-08-29 17:29:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 17:29:27,471 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 17:29:27,472 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 17:29:27,724 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 17:29:27,725 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 17:29:27,954 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 17:29:27,960 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 17:29:27,960 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-29 17:29:27,965 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:27 BoogieIcfgContainer [2023-08-29 17:29:27,966 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 17:29:27,968 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 17:29:27,969 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 17:29:27,971 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 17:29:27,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 05:29:26" (1/3) ... [2023-08-29 17:29:27,971 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35706614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:27, skipping insertion in model container [2023-08-29 17:29:27,971 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 05:29:27" (2/3) ... [2023-08-29 17:29:27,972 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35706614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 05:29:27, skipping insertion in model container [2023-08-29 17:29:27,972 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:27" (3/3) ... [2023-08-29 17:29:27,973 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2023-08-29 17:29:27,978 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 17:29:27,984 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 17:29:27,984 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 17:29:27,984 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 17:29:28,080 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 17:29:28,112 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 288 transitions, 592 flow [2023-08-29 17:29:28,182 INFO L130 PetriNetUnfolder]: 31/286 cut-off events. [2023-08-29 17:29:28,182 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 17:29:28,190 INFO L83 FinitePrefix]: Finished finitePrefix Result has 295 conditions, 286 events. 31/286 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 732 event pairs, 0 based on Foata normal form. 0/237 useless extension candidates. Maximal degree in co-relation 185. Up to 5 conditions per place. [2023-08-29 17:29:28,190 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 288 transitions, 592 flow [2023-08-29 17:29:28,199 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 276 transitions, 564 flow [2023-08-29 17:29:28,201 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 17:29:28,207 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 276 transitions, 564 flow [2023-08-29 17:29:28,209 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 276 transitions, 564 flow [2023-08-29 17:29:28,209 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 276 transitions, 564 flow [2023-08-29 17:29:28,247 INFO L130 PetriNetUnfolder]: 29/276 cut-off events. [2023-08-29 17:29:28,247 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 17:29:28,249 INFO L83 FinitePrefix]: Finished finitePrefix Result has 285 conditions, 276 events. 29/276 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 710 event pairs, 0 based on Foata normal form. 0/230 useless extension candidates. Maximal degree in co-relation 185. Up to 5 conditions per place. [2023-08-29 17:29:28,255 INFO L119 LiptonReduction]: Number of co-enabled transitions 21896 [2023-08-29 17:29:35,577 INFO L134 LiptonReduction]: Checked pairs total: 54617 [2023-08-29 17:29:35,578 INFO L136 LiptonReduction]: Total number of compositions: 268 [2023-08-29 17:29:35,586 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 17:29:35,590 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;@176b36bc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 17:29:35,590 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-29 17:29:35,591 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 17:29:35,591 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 17:29:35,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:35,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 17:29:35,592 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:35,595 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:35,595 INFO L85 PathProgramCache]: Analyzing trace with hash 1140, now seen corresponding path program 1 times [2023-08-29 17:29:35,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:35,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213262118] [2023-08-29 17:29:35,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:35,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:35,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:35,736 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 17:29:35,737 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:35,737 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213262118] [2023-08-29 17:29:35,738 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213262118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:35,738 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:35,738 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 17:29:35,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899093924] [2023-08-29 17:29:35,740 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:35,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 17:29:35,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:35,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 17:29:35,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 17:29:35,766 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 556 [2023-08-29 17:29:35,769 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 88 transitions, 188 flow. Second operand has 2 states, 2 states have (on average 257.5) internal successors, (515), 2 states have internal predecessors, (515), 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 17:29:35,770 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:35,770 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 556 [2023-08-29 17:29:35,770 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:35,943 INFO L130 PetriNetUnfolder]: 882/1845 cut-off events. [2023-08-29 17:29:35,943 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-29 17:29:35,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3226 conditions, 1845 events. 882/1845 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 127. Compared 11885 event pairs, 688 based on Foata normal form. 133/1429 useless extension candidates. Maximal degree in co-relation 3035. Up to 1349 conditions per place. [2023-08-29 17:29:35,952 INFO L137 encePairwiseOnDemand]: 541/556 looper letters, 33 selfloop transitions, 0 changer transitions 1/54 dead transitions. [2023-08-29 17:29:35,952 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 188 flow [2023-08-29 17:29:35,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 17:29:35,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 17:29:35,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 563 transitions. [2023-08-29 17:29:35,966 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062949640287769 [2023-08-29 17:29:35,966 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 563 transitions. [2023-08-29 17:29:35,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 563 transitions. [2023-08-29 17:29:35,969 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:35,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 563 transitions. [2023-08-29 17:29:35,975 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 281.5) internal successors, (563), 2 states have internal predecessors, (563), 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 17:29:35,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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 17:29:35,979 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 556.0) internal successors, (1668), 3 states have internal predecessors, (1668), 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 17:29:35,981 INFO L175 Difference]: Start difference. First operand has 73 places, 88 transitions, 188 flow. Second operand 2 states and 563 transitions. [2023-08-29 17:29:35,981 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 188 flow [2023-08-29 17:29:35,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 180 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 17:29:35,985 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 109 flow [2023-08-29 17:29:35,987 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=112, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=109, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2023-08-29 17:29:35,991 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-29 17:29:35,991 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 109 flow [2023-08-29 17:29:35,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 257.5) internal successors, (515), 2 states have internal predecessors, (515), 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 17:29:35,992 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:35,992 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:29:35,992 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 17:29:35,993 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting counter_threadErr0ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:35,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:35,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1079661214, now seen corresponding path program 1 times [2023-08-29 17:29:35,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:35,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143930597] [2023-08-29 17:29:35,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:35,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:36,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:36,130 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 17:29:36,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:36,131 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143930597] [2023-08-29 17:29:36,131 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143930597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:36,131 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:36,131 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:36,131 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361507287] [2023-08-29 17:29:36,132 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:36,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:36,133 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:36,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:36,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:36,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 556 [2023-08-29 17:29:36,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 109 flow. Second operand has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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 17:29:36,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:36,145 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 556 [2023-08-29 17:29:36,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:36,272 INFO L130 PetriNetUnfolder]: 912/1828 cut-off events. [2023-08-29 17:29:36,272 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-29 17:29:36,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3236 conditions, 1828 events. 912/1828 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 125. Compared 11375 event pairs, 252 based on Foata normal form. 0/1282 useless extension candidates. Maximal degree in co-relation 3233. Up to 1348 conditions per place. [2023-08-29 17:29:36,278 INFO L137 encePairwiseOnDemand]: 552/556 looper letters, 42 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2023-08-29 17:29:36,278 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 216 flow [2023-08-29 17:29:36,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:36,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:36,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2023-08-29 17:29:36,280 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47721822541966424 [2023-08-29 17:29:36,280 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2023-08-29 17:29:36,281 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2023-08-29 17:29:36,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:36,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2023-08-29 17:29:36,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.3333333333333) internal successors, (796), 3 states have internal predecessors, (796), 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 17:29:36,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:36,286 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:36,286 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 109 flow. Second operand 3 states and 796 transitions. [2023-08-29 17:29:36,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 62 transitions, 216 flow [2023-08-29 17:29:36,287 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:36,288 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 119 flow [2023-08-29 17:29:36,288 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=54, PETRI_TRANSITIONS=53} [2023-08-29 17:29:36,289 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-29 17:29:36,289 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 119 flow [2023-08-29 17:29:36,290 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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 17:29:36,290 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:36,290 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 17:29:36,290 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 17:29:36,290 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:36,292 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:36,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1079727606, now seen corresponding path program 1 times [2023-08-29 17:29:36,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:36,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343877355] [2023-08-29 17:29:36,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:36,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:36,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:36,331 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 17:29:36,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:36,331 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343877355] [2023-08-29 17:29:36,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343877355] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:36,332 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:36,332 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:36,332 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281813434] [2023-08-29 17:29:36,332 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:36,332 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:36,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:36,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:36,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:36,354 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 556 [2023-08-29 17:29:36,355 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 53 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 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 17:29:36,355 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:36,356 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 556 [2023-08-29 17:29:36,356 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:36,499 INFO L130 PetriNetUnfolder]: 1204/2176 cut-off events. [2023-08-29 17:29:36,499 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2023-08-29 17:29:36,500 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4199 conditions, 2176 events. 1204/2176 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 130. Compared 12685 event pairs, 668 based on Foata normal form. 152/1704 useless extension candidates. Maximal degree in co-relation 4195. Up to 1396 conditions per place. [2023-08-29 17:29:36,506 INFO L137 encePairwiseOnDemand]: 550/556 looper letters, 66 selfloop transitions, 3 changer transitions 1/82 dead transitions. [2023-08-29 17:29:36,506 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 328 flow [2023-08-29 17:29:36,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:36,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:36,507 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-08-29 17:29:36,508 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460431654676259 [2023-08-29 17:29:36,508 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-08-29 17:29:36,508 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-08-29 17:29:36,508 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:36,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-08-29 17:29:36,509 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 256.0) internal successors, (768), 3 states have internal predecessors, (768), 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 17:29:36,511 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:36,512 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:36,512 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 119 flow. Second operand 3 states and 768 transitions. [2023-08-29 17:29:36,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 328 flow [2023-08-29 17:29:36,513 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 82 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:36,514 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 130 flow [2023-08-29 17:29:36,514 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=113, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=54, PETRI_TRANSITIONS=52} [2023-08-29 17:29:36,515 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-29 17:29:36,515 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 130 flow [2023-08-29 17:29:36,515 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 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 17:29:36,515 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:36,516 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 17:29:36,516 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 17:29:36,516 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:36,516 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:36,516 INFO L85 PathProgramCache]: Analyzing trace with hash -887963317, now seen corresponding path program 1 times [2023-08-29 17:29:36,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:36,517 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491721916] [2023-08-29 17:29:36,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:36,517 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:36,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:36,705 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 17:29:36,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:36,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491721916] [2023-08-29 17:29:36,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491721916] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:36,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:36,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:36,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424406547] [2023-08-29 17:29:36,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:36,707 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:36,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:36,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:36,707 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:36,737 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 556 [2023-08-29 17:29:36,738 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 52 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 17:29:36,738 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:36,738 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 556 [2023-08-29 17:29:36,738 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:36,846 INFO L130 PetriNetUnfolder]: 736/1322 cut-off events. [2023-08-29 17:29:36,846 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2023-08-29 17:29:36,848 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2644 conditions, 1322 events. 736/1322 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 83. Compared 7025 event pairs, 231 based on Foata normal form. 0/962 useless extension candidates. Maximal degree in co-relation 2639. Up to 618 conditions per place. [2023-08-29 17:29:36,863 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 55 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2023-08-29 17:29:36,863 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 294 flow [2023-08-29 17:29:36,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:36,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:36,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-29 17:29:36,865 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.486810551558753 [2023-08-29 17:29:36,865 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-29 17:29:36,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-29 17:29:36,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:36,866 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-29 17:29:36,867 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 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 17:29:36,869 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:36,869 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:36,870 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 130 flow. Second operand 3 states and 812 transitions. [2023-08-29 17:29:36,870 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 294 flow [2023-08-29 17:29:36,870 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:36,871 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 130 flow [2023-08-29 17:29:36,871 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=53, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=130, PETRI_PLACES=55, PETRI_TRANSITIONS=51} [2023-08-29 17:29:36,872 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -18 predicate places. [2023-08-29 17:29:36,872 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 130 flow [2023-08-29 17:29:36,872 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 255.0) internal successors, (765), 3 states have internal predecessors, (765), 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 17:29:36,873 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:36,873 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:36,873 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 17:29:36,873 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting counter_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:36,873 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:36,873 INFO L85 PathProgramCache]: Analyzing trace with hash -817733143, now seen corresponding path program 1 times [2023-08-29 17:29:36,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:36,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741502138] [2023-08-29 17:29:36,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:36,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:36,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:36,905 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 17:29:36,906 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:36,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741502138] [2023-08-29 17:29:36,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741502138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:36,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:36,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:36,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003757943] [2023-08-29 17:29:36,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:36,907 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:36,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:36,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:36,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:36,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 556 [2023-08-29 17:29:36,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 51 transitions, 130 flow. Second operand has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 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 17:29:36,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:36,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 556 [2023-08-29 17:29:36,920 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:37,113 INFO L130 PetriNetUnfolder]: 1843/3199 cut-off events. [2023-08-29 17:29:37,113 INFO L131 PetriNetUnfolder]: For 346/346 co-relation queries the response was YES. [2023-08-29 17:29:37,116 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6706 conditions, 3199 events. 1843/3199 cut-off events. For 346/346 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 17145 event pairs, 630 based on Foata normal form. 0/2611 useless extension candidates. Maximal degree in co-relation 6700. Up to 1436 conditions per place. [2023-08-29 17:29:37,123 INFO L137 encePairwiseOnDemand]: 545/556 looper letters, 65 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2023-08-29 17:29:37,124 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 350 flow [2023-08-29 17:29:37,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:37,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:37,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-29 17:29:37,126 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.486810551558753 [2023-08-29 17:29:37,126 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-29 17:29:37,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-29 17:29:37,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:37,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-29 17:29:37,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.6666666666667) internal successors, (812), 3 states have internal predecessors, (812), 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 17:29:37,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:37,130 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:37,130 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 130 flow. Second operand 3 states and 812 transitions. [2023-08-29 17:29:37,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 350 flow [2023-08-29 17:29:37,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:29:37,134 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 199 flow [2023-08-29 17:29:37,135 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=129, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=199, PETRI_PLACES=58, PETRI_TRANSITIONS=59} [2023-08-29 17:29:37,137 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -15 predicate places. [2023-08-29 17:29:37,137 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 199 flow [2023-08-29 17:29:37,137 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 248.66666666666666) internal successors, (746), 3 states have internal predecessors, (746), 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 17:29:37,137 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:37,137 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:37,138 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 17:29:37,138 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:37,138 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:37,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1100797449, now seen corresponding path program 1 times [2023-08-29 17:29:37,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:37,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328690755] [2023-08-29 17:29:37,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:37,139 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:37,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:37,339 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 17:29:37,339 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:37,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328690755] [2023-08-29 17:29:37,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328690755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:37,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:37,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:37,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539870061] [2023-08-29 17:29:37,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:37,342 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:37,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:37,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:37,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:37,368 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 556 [2023-08-29 17:29:37,369 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 59 transitions, 199 flow. Second operand has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 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 17:29:37,369 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:37,369 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 556 [2023-08-29 17:29:37,370 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:37,551 INFO L130 PetriNetUnfolder]: 1424/2629 cut-off events. [2023-08-29 17:29:37,552 INFO L131 PetriNetUnfolder]: For 651/659 co-relation queries the response was YES. [2023-08-29 17:29:37,555 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6208 conditions, 2629 events. 1424/2629 cut-off events. For 651/659 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 14690 event pairs, 871 based on Foata normal form. 0/2083 useless extension candidates. Maximal degree in co-relation 6201. Up to 2087 conditions per place. [2023-08-29 17:29:37,561 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 49 selfloop transitions, 1 changer transitions 2/72 dead transitions. [2023-08-29 17:29:37,562 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 349 flow [2023-08-29 17:29:37,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:37,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:37,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 802 transitions. [2023-08-29 17:29:37,564 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48081534772182255 [2023-08-29 17:29:37,564 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 802 transitions. [2023-08-29 17:29:37,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 802 transitions. [2023-08-29 17:29:37,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:37,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 802 transitions. [2023-08-29 17:29:37,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 267.3333333333333) internal successors, (802), 3 states have internal predecessors, (802), 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 17:29:37,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:37,568 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:37,570 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 199 flow. Second operand 3 states and 802 transitions. [2023-08-29 17:29:37,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 349 flow [2023-08-29 17:29:37,573 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 72 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 17:29:37,574 INFO L231 Difference]: Finished difference. Result has 57 places, 58 transitions, 183 flow [2023-08-29 17:29:37,575 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=181, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=183, PETRI_PLACES=57, PETRI_TRANSITIONS=58} [2023-08-29 17:29:37,576 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -16 predicate places. [2023-08-29 17:29:37,576 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 58 transitions, 183 flow [2023-08-29 17:29:37,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.0) internal successors, (771), 3 states have internal predecessors, (771), 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 17:29:37,577 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:37,577 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:37,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 17:29:37,578 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:37,578 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:37,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1014654163, now seen corresponding path program 1 times [2023-08-29 17:29:37,578 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:37,578 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697903904] [2023-08-29 17:29:37,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:37,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:37,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:37,618 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 17:29:37,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:37,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697903904] [2023-08-29 17:29:37,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697903904] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:37,619 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:37,619 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:37,619 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280954397] [2023-08-29 17:29:37,619 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:37,620 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:37,620 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:37,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:37,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:37,634 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 556 [2023-08-29 17:29:37,635 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 58 transitions, 183 flow. Second operand has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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 17:29:37,635 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:37,635 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 556 [2023-08-29 17:29:37,635 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:37,797 INFO L130 PetriNetUnfolder]: 1691/3002 cut-off events. [2023-08-29 17:29:37,797 INFO L131 PetriNetUnfolder]: For 371/409 co-relation queries the response was YES. [2023-08-29 17:29:37,800 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6853 conditions, 3002 events. 1691/3002 cut-off events. For 371/409 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 16271 event pairs, 952 based on Foata normal form. 27/2322 useless extension candidates. Maximal degree in co-relation 6846. Up to 2353 conditions per place. [2023-08-29 17:29:37,813 INFO L137 encePairwiseOnDemand]: 550/556 looper letters, 47 selfloop transitions, 9 changer transitions 5/79 dead transitions. [2023-08-29 17:29:37,813 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 361 flow [2023-08-29 17:29:37,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:37,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:37,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2023-08-29 17:29:37,815 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4766187050359712 [2023-08-29 17:29:37,815 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2023-08-29 17:29:37,815 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2023-08-29 17:29:37,815 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:37,815 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2023-08-29 17:29:37,817 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.0) internal successors, (795), 3 states have internal predecessors, (795), 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 17:29:37,819 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:37,819 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:37,819 INFO L175 Difference]: Start difference. First operand has 57 places, 58 transitions, 183 flow. Second operand 3 states and 795 transitions. [2023-08-29 17:29:37,820 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 361 flow [2023-08-29 17:29:37,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 79 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:29:37,822 INFO L231 Difference]: Finished difference. Result has 59 places, 63 transitions, 244 flow [2023-08-29 17:29:37,822 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=182, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=49, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=59, PETRI_TRANSITIONS=63} [2023-08-29 17:29:37,823 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -14 predicate places. [2023-08-29 17:29:37,823 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 63 transitions, 244 flow [2023-08-29 17:29:37,823 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 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 17:29:37,823 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:37,823 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:37,824 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 17:29:37,824 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting monitor_threadErr5ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:37,824 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:37,824 INFO L85 PathProgramCache]: Analyzing trace with hash -542107194, now seen corresponding path program 1 times [2023-08-29 17:29:37,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:37,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593402044] [2023-08-29 17:29:37,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:37,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:37,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:37,864 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 17:29:37,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:37,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593402044] [2023-08-29 17:29:37,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593402044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:37,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:37,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 17:29:37,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508859329] [2023-08-29 17:29:37,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:37,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 17:29:37,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:37,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 17:29:37,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 17:29:37,882 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 556 [2023-08-29 17:29:37,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 63 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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 17:29:37,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:37,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 556 [2023-08-29 17:29:37,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:38,078 INFO L130 PetriNetUnfolder]: 1719/3003 cut-off events. [2023-08-29 17:29:38,078 INFO L131 PetriNetUnfolder]: For 1389/1503 co-relation queries the response was YES. [2023-08-29 17:29:38,094 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7601 conditions, 3003 events. 1719/3003 cut-off events. For 1389/1503 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 15965 event pairs, 945 based on Foata normal form. 19/2333 useless extension candidates. Maximal degree in co-relation 7593. Up to 2410 conditions per place. [2023-08-29 17:29:38,099 INFO L137 encePairwiseOnDemand]: 551/556 looper letters, 50 selfloop transitions, 8 changer transitions 4/80 dead transitions. [2023-08-29 17:29:38,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 421 flow [2023-08-29 17:29:38,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 17:29:38,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 17:29:38,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2023-08-29 17:29:38,101 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748201438848921 [2023-08-29 17:29:38,101 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 792 transitions. [2023-08-29 17:29:38,102 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 792 transitions. [2023-08-29 17:29:38,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:38,102 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 792 transitions. [2023-08-29 17:29:38,103 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 264.0) internal successors, (792), 3 states have internal predecessors, (792), 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 17:29:38,105 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:38,105 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 556.0) internal successors, (2224), 4 states have internal predecessors, (2224), 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 17:29:38,105 INFO L175 Difference]: Start difference. First operand has 59 places, 63 transitions, 244 flow. Second operand 3 states and 792 transitions. [2023-08-29 17:29:38,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 421 flow [2023-08-29 17:29:38,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 80 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:29:38,108 INFO L231 Difference]: Finished difference. Result has 59 places, 67 transitions, 287 flow [2023-08-29 17:29:38,108 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=235, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=287, PETRI_PLACES=59, PETRI_TRANSITIONS=67} [2023-08-29 17:29:38,109 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -14 predicate places. [2023-08-29 17:29:38,109 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 67 transitions, 287 flow [2023-08-29 17:29:38,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 251.66666666666666) internal successors, (755), 3 states have internal predecessors, (755), 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 17:29:38,109 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:38,110 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:38,110 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 17:29:38,110 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:38,110 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:38,110 INFO L85 PathProgramCache]: Analyzing trace with hash -877160077, now seen corresponding path program 1 times [2023-08-29 17:29:38,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:38,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374783061] [2023-08-29 17:29:38,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:38,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:38,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:38,184 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 17:29:38,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:38,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374783061] [2023-08-29 17:29:38,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374783061] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:38,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:38,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 17:29:38,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887356897] [2023-08-29 17:29:38,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:38,186 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 17:29:38,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:38,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 17:29:38,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 17:29:38,211 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 556 [2023-08-29 17:29:38,212 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 59 places, 67 transitions, 287 flow. Second operand has 4 states, 4 states have (on average 248.75) internal successors, (995), 4 states have internal predecessors, (995), 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 17:29:38,212 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:38,212 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 556 [2023-08-29 17:29:38,212 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:38,504 INFO L130 PetriNetUnfolder]: 2825/4935 cut-off events. [2023-08-29 17:29:38,505 INFO L131 PetriNetUnfolder]: For 4095/4388 co-relation queries the response was YES. [2023-08-29 17:29:38,511 INFO L83 FinitePrefix]: Finished finitePrefix Result has 13110 conditions, 4935 events. 2825/4935 cut-off events. For 4095/4388 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 28797 event pairs, 637 based on Foata normal form. 51/3985 useless extension candidates. Maximal degree in co-relation 13101. Up to 1575 conditions per place. [2023-08-29 17:29:38,521 INFO L137 encePairwiseOnDemand]: 549/556 looper letters, 107 selfloop transitions, 15 changer transitions 2/143 dead transitions. [2023-08-29 17:29:38,521 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 143 transitions, 857 flow [2023-08-29 17:29:38,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 17:29:38,522 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 17:29:38,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1311 transitions. [2023-08-29 17:29:38,524 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47158273381294963 [2023-08-29 17:29:38,524 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1311 transitions. [2023-08-29 17:29:38,524 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1311 transitions. [2023-08-29 17:29:38,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:38,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1311 transitions. [2023-08-29 17:29:38,526 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 262.2) internal successors, (1311), 5 states have internal predecessors, (1311), 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 17:29:38,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 556.0) internal successors, (3336), 6 states have internal predecessors, (3336), 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 17:29:38,529 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 556.0) internal successors, (3336), 6 states have internal predecessors, (3336), 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 17:29:38,529 INFO L175 Difference]: Start difference. First operand has 59 places, 67 transitions, 287 flow. Second operand 5 states and 1311 transitions. [2023-08-29 17:29:38,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 143 transitions, 857 flow [2023-08-29 17:29:38,536 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 143 transitions, 841 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 17:29:38,538 INFO L231 Difference]: Finished difference. Result has 66 places, 80 transitions, 423 flow [2023-08-29 17:29:38,538 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=279, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=423, PETRI_PLACES=66, PETRI_TRANSITIONS=80} [2023-08-29 17:29:38,538 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -7 predicate places. [2023-08-29 17:29:38,538 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 80 transitions, 423 flow [2023-08-29 17:29:38,539 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 248.75) internal successors, (995), 4 states have internal predecessors, (995), 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 17:29:38,539 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:38,539 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:38,539 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 17:29:38,539 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting monitor_threadErr2ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:38,539 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:38,540 INFO L85 PathProgramCache]: Analyzing trace with hash 764769679, now seen corresponding path program 2 times [2023-08-29 17:29:38,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:38,540 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234575528] [2023-08-29 17:29:38,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:38,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:38,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 17:29:38,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 17:29:38,621 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 17:29:38,621 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234575528] [2023-08-29 17:29:38,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234575528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 17:29:38,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 17:29:38,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 17:29:38,622 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747100484] [2023-08-29 17:29:38,622 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 17:29:38,622 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 17:29:38,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 17:29:38,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 17:29:38,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 17:29:38,641 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 556 [2023-08-29 17:29:38,642 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 80 transitions, 423 flow. Second operand has 4 states, 4 states have (on average 248.75) internal successors, (995), 4 states have internal predecessors, (995), 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 17:29:38,642 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 17:29:38,642 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 556 [2023-08-29 17:29:38,642 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 17:29:39,005 INFO L130 PetriNetUnfolder]: 3331/5727 cut-off events. [2023-08-29 17:29:39,005 INFO L131 PetriNetUnfolder]: For 7856/8115 co-relation queries the response was YES. [2023-08-29 17:29:39,013 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17822 conditions, 5727 events. 3331/5727 cut-off events. For 7856/8115 co-relation queries the response was YES. Maximal size of possible extension queue 166. Compared 33739 event pairs, 644 based on Foata normal form. 101/4961 useless extension candidates. Maximal degree in co-relation 17810. Up to 2391 conditions per place. [2023-08-29 17:29:39,025 INFO L137 encePairwiseOnDemand]: 547/556 looper letters, 89 selfloop transitions, 31 changer transitions 5/144 dead transitions. [2023-08-29 17:29:39,025 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 144 transitions, 990 flow [2023-08-29 17:29:39,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 17:29:39,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 17:29:39,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1058 transitions. [2023-08-29 17:29:39,027 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47571942446043164 [2023-08-29 17:29:39,028 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1058 transitions. [2023-08-29 17:29:39,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1058 transitions. [2023-08-29 17:29:39,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 17:29:39,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1058 transitions. [2023-08-29 17:29:39,030 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 264.5) internal successors, (1058), 4 states have internal predecessors, (1058), 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 17:29:39,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 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 17:29:39,032 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 556.0) internal successors, (2780), 5 states have internal predecessors, (2780), 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 17:29:39,033 INFO L175 Difference]: Start difference. First operand has 66 places, 80 transitions, 423 flow. Second operand 4 states and 1058 transitions. [2023-08-29 17:29:39,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 144 transitions, 990 flow [2023-08-29 17:29:39,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 144 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 17:29:39,040 INFO L231 Difference]: Finished difference. Result has 72 places, 102 transitions, 738 flow [2023-08-29 17:29:39,040 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=556, PETRI_DIFFERENCE_MINUEND_FLOW=423, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=738, PETRI_PLACES=72, PETRI_TRANSITIONS=102} [2023-08-29 17:29:39,041 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -1 predicate places. [2023-08-29 17:29:39,041 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 102 transitions, 738 flow [2023-08-29 17:29:39,041 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 248.75) internal successors, (995), 4 states have internal predecessors, (995), 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 17:29:39,041 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 17:29:39,041 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:39,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 17:29:39,042 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting counter_threadErr3ASSERT_VIOLATIONDATA_RACE === [monitor_threadErr0ASSERT_VIOLATIONDATA_RACE, monitor_threadErr4ASSERT_VIOLATIONDATA_RACE, monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-29 17:29:39,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 17:29:39,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1036710662, now seen corresponding path program 1 times [2023-08-29 17:29:39,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 17:29:39,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679762781] [2023-08-29 17:29:39,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 17:29:39,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 17:29:39,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:29:39,058 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 17:29:39,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 17:29:39,082 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 17:29:39,083 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 17:29:39,083 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2023-08-29 17:29:39,084 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-08-29 17:29:39,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-08-29 17:29:39,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-08-29 17:29:39,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-08-29 17:29:39,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-08-29 17:29:39,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-08-29 17:29:39,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-08-29 17:29:39,085 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-08-29 17:29:39,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-08-29 17:29:39,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-08-29 17:29:39,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-08-29 17:29:39,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-08-29 17:29:39,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-08-29 17:29:39,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-08-29 17:29:39,086 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-08-29 17:29:39,087 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-08-29 17:29:39,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-08-29 17:29:39,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-08-29 17:29:39,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-08-29 17:29:39,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-08-29 17:29:39,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-08-29 17:29:39,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-08-29 17:29:39,088 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-08-29 17:29:39,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 17:29:39,089 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 17:29:39,093 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 17:29:39,093 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 17:29:39,118 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 05:29:39 BasicIcfg [2023-08-29 17:29:39,118 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 17:29:39,119 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 17:29:39,119 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 17:29:39,119 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 17:29:39,119 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 05:29:27" (3/4) ... [2023-08-29 17:29:39,121 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 17:29:39,121 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 17:29:39,121 INFO L158 Benchmark]: Toolchain (without parser) took 12452.85ms. Allocated memory was 86.0MB in the beginning and 369.1MB in the end (delta: 283.1MB). Free memory was 60.1MB in the beginning and 141.9MB in the end (delta: -81.8MB). Peak memory consumption was 204.8MB. Max. memory is 16.1GB. [2023-08-29 17:29:39,121 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:39,121 INFO L158 Benchmark]: CACSL2BoogieTranslator took 670.68ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 45.5MB in the end (delta: 14.5MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. [2023-08-29 17:29:39,122 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.31ms. Allocated memory is still 86.0MB. Free memory was 45.5MB in the beginning and 42.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 17:29:39,122 INFO L158 Benchmark]: Boogie Preprocessor took 28.30ms. Allocated memory is still 86.0MB. Free memory was 42.0MB in the beginning and 39.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 17:29:39,122 INFO L158 Benchmark]: RCFGBuilder took 551.14ms. Allocated memory is still 86.0MB. Free memory was 39.0MB in the beginning and 34.0MB in the end (delta: 4.9MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2023-08-29 17:29:39,122 INFO L158 Benchmark]: TraceAbstraction took 11150.07ms. Allocated memory was 86.0MB in the beginning and 369.1MB in the end (delta: 283.1MB). Free memory was 33.6MB in the beginning and 141.9MB in the end (delta: -108.3MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. [2023-08-29 17:29:39,122 INFO L158 Benchmark]: Witness Printer took 2.20ms. Allocated memory is still 369.1MB. Free memory is still 141.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 17:29:39,123 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 65.0MB. Free memory is still 42.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 670.68ms. Allocated memory is still 86.0MB. Free memory was 59.9MB in the beginning and 45.5MB in the end (delta: 14.5MB). Peak memory consumption was 35.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.31ms. Allocated memory is still 86.0MB. Free memory was 45.5MB in the beginning and 42.0MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 28.30ms. Allocated memory is still 86.0MB. Free memory was 42.0MB in the beginning and 39.0MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 551.14ms. Allocated memory is still 86.0MB. Free memory was 39.0MB in the beginning and 34.0MB in the end (delta: 4.9MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * TraceAbstraction took 11150.07ms. Allocated memory was 86.0MB in the beginning and 369.1MB in the end (delta: 283.1MB). Free memory was 33.6MB in the beginning and 141.9MB in the end (delta: -108.3MB). Peak memory consumption was 176.7MB. Max. memory is 16.1GB. * Witness Printer took 2.20ms. Allocated memory is still 369.1MB. Free memory is still 141.9MB. 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: 7.4s, 254 PlacesBefore, 73 PlacesAfterwards, 276 TransitionsBefore, 88 TransitionsAfterwards, 21896 CoEnabledTransitionPairs, 8 FixpointIterations, 68 TrivialSequentialCompositions, 152 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 39 ConcurrentYvCompositions, 7 ChoiceCompositions, 268 TotalNumberOfCompositions, 54617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27544, independent: 26874, independent conditional: 0, independent unconditional: 26874, dependent: 670, dependent conditional: 0, dependent unconditional: 670, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12953, independent: 12837, independent conditional: 0, independent unconditional: 12837, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27544, independent: 14037, independent conditional: 0, independent unconditional: 14037, dependent: 554, dependent conditional: 0, dependent unconditional: 554, unknown: 12953, unknown conditional: 0, unknown unconditional: 12953] , Statistics on independence cache: Total cache size (in pairs): 860, Positive cache size: 809, Positive conditional cache size: 0, Positive unconditional cache size: 809, Negative cache size: 51, Negative conditional cache size: 0, Negative unconditional cache size: 51, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1808]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] 0 long counter; [L1799] 0 time_t end_time; [L1836] 0 int status; [L1837] 0 pthread_t counter_thread_id; [L1838] 0 pthread_t monitor_thread_id; [L1839] 0 end_time = time (((void *)0)) + 60 [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, argc=1153, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-2] [L1801] 1 int status; [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) [L1841] COND FALSE 0 !(status != 0) [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, arg={0:0}, arg={0:0}, argc=1153, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=-1, status=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1817] 2 int status; [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, time (((void *)0))=0] [L1819] 2 time (((void *)0)) < end_time [L1819] COND TRUE 2 time (((void *)0)) < end_time [L1804] 1 status = pthread_mutex_lock (&mutex) [L1805] COND FALSE 1 !(status != 0) [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, pthread_mutex_trylock (&mutex)=16, spin=0, status=0, status=16] [L1822] COND FALSE 2 !(status != 16) [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, spin=0, status=0, status=16] Now there is a data race on ~counter~0 between C: counter++ [1830] and C: counter++ [1808] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1840]: 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: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 379 locations, 31 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: 11.0s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.5s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 534 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1088 IncrementalHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 22 mSDtfsCounter, 1088 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=738occurred in iteration=10, InterpolantAutomatonStates: 32, 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, 0.7s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 180 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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 17:29:39,172 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