./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/04-mutex_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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:59:00,818 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:59:00,820 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:59:00,863 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:59:00,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:59:00,868 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:59:00,870 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:59:00,873 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:59:00,875 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:59:00,879 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:59:00,880 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:59:00,883 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:59:00,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:59:00,886 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:59:00,887 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:59:00,893 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:59:00,894 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:59:00,896 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:59:00,897 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:59:00,902 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:59:00,903 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:59:00,910 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:59:00,911 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:59:00,912 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:59:00,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:59:00,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:59:00,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:59:00,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:59:00,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:59:00,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:59:00,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:59:00,929 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:59:00,931 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:59:00,931 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:59:00,932 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:59:00,932 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:59:00,933 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:59:00,933 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:59:00,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:59:00,934 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:59:00,935 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:59:00,936 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:59:00,971 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:59:00,972 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:59:00,973 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:59:00,973 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:59:00,974 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:59:00,974 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:59:00,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:59:00,975 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:59:00,975 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:59:00,975 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:59:00,976 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:59:00,976 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:59:00,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:59:00,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:59:00,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:59:00,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:59:00,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:59:00,977 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:59:00,978 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:59:00,978 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:59:00,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:59:00,978 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:59:00,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:59:00,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:59:00,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:59:00,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:59:00,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:59:00,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:59:00,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:59:00,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:59:00,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:59:00,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:59:00,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:59:00,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:59:00,981 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:59:00,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:59:00,981 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:59:00,982 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:59:01,309 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:59:01,329 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:59:01,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:59:01,334 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:59:01,335 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:59:01,336 INFO L432 ainManager$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 01:59:02,562 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:59:02,864 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:59:02,865 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_35-trylock_rc.i [2023-08-29 01:59:02,887 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9aa3d064/312adfb560f24c8090bdcc0640ea6cb1/FLAGccd8a2285 [2023-08-29 01:59:02,907 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c9aa3d064/312adfb560f24c8090bdcc0640ea6cb1 [2023-08-29 01:59:02,910 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:59:02,912 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:59:02,914 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:59:02,914 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:59:02,917 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:59:02,918 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:59:02" (1/1) ... [2023-08-29 01:59:02,920 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a3a9711 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:02, skipping insertion in model container [2023-08-29 01:59:02,920 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:59:02" (1/1) ... [2023-08-29 01:59:02,926 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:59:02,976 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:59:03,600 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:59:03,613 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:59:03,700 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:59:03,844 WARN L667 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:59:03,845 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:59:03,845 WARN L667 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:59:03,845 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-29 01:59:03,851 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:59:03,851 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03 WrapperNode [2023-08-29 01:59:03,852 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:59:03,853 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:59:03,853 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:59:03,853 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:59:03,860 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:03,912 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:03,956 INFO L138 Inliner]: procedures = 524, calls = 67, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2023-08-29 01:59:03,957 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:59:03,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:59:03,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:59:03,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:59:03,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:03,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:03,978 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:03,979 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:03,995 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:04,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:04,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:04,013 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:04,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:59:04,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:59:04,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:59:04,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:59:04,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (1/1) ... [2023-08-29 01:59:04,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:59:04,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:59:04,062 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 01:59:04,080 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 01:59:04,098 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-08-29 01:59:04,099 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-08-29 01:59:04,099 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:59:04,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:59:04,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:59:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-29 01:59:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:59:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-29 01:59:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-08-29 01:59:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:59:04,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:59:04,101 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:59:04,449 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:59:04,451 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:59:04,732 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:59:04,742 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:59:04,742 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-29 01:59:04,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:04 BoogieIcfgContainer [2023-08-29 01:59:04,745 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:59:04,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:59:04,746 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:59:04,749 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:59:04,749 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:59:02" (1/3) ... [2023-08-29 01:59:04,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3966a306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:59:04, skipping insertion in model container [2023-08-29 01:59:04,750 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:59:03" (2/3) ... [2023-08-29 01:59:04,750 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3966a306 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:59:04, skipping insertion in model container [2023-08-29 01:59:04,751 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:04" (3/3) ... [2023-08-29 01:59:04,752 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2023-08-29 01:59:04,758 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:59:04,767 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:59:04,767 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-29 01:59:04,767 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:59:04,844 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-29 01:59:04,894 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 288 transitions, 592 flow [2023-08-29 01:59:05,024 INFO L130 PetriNetUnfolder]: 31/286 cut-off events. [2023-08-29 01:59:05,024 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 01:59:05,034 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 01:59:05,035 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 288 transitions, 592 flow [2023-08-29 01:59:05,048 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 276 transitions, 564 flow [2023-08-29 01:59:05,052 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:59:05,065 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 276 transitions, 564 flow [2023-08-29 01:59:05,069 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 276 transitions, 564 flow [2023-08-29 01:59:05,070 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 276 transitions, 564 flow [2023-08-29 01:59:05,155 INFO L130 PetriNetUnfolder]: 29/276 cut-off events. [2023-08-29 01:59:05,156 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-29 01:59:05,160 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 01:59:05,172 INFO L119 LiptonReduction]: Number of co-enabled transitions 21896 [2023-08-29 01:59:14,075 INFO L134 LiptonReduction]: Checked pairs total: 54617 [2023-08-29 01:59:14,076 INFO L136 LiptonReduction]: Total number of compositions: 268 [2023-08-29 01:59:14,089 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:59:14,095 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;@20fa0c65, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:59:14,095 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-29 01:59:14,096 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 01:59:14,097 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:59:14,097 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:14,097 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 01:59:14,098 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 01:59:14,102 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:14,102 INFO L85 PathProgramCache]: Analyzing trace with hash 1140, now seen corresponding path program 1 times [2023-08-29 01:59:14,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:14,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776961243] [2023-08-29 01:59:14,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:14,111 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:14,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:14,339 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 01:59:14,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:14,343 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776961243] [2023-08-29 01:59:14,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776961243] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:14,344 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:14,344 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 01:59:14,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152219095] [2023-08-29 01:59:14,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:14,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 01:59:14,390 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:14,417 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 01:59:14,439 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 01:59:14,445 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 556 [2023-08-29 01:59:14,450 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 01:59:14,450 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:14,451 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 556 [2023-08-29 01:59:14,451 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:14,742 INFO L130 PetriNetUnfolder]: 882/1845 cut-off events. [2023-08-29 01:59:14,742 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-29 01:59:14,745 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 01:59:14,755 INFO L137 encePairwiseOnDemand]: 541/556 looper letters, 33 selfloop transitions, 0 changer transitions 1/54 dead transitions. [2023-08-29 01:59:14,756 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 188 flow [2023-08-29 01:59:14,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 01:59:14,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 01:59:14,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 563 transitions. [2023-08-29 01:59:14,774 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062949640287769 [2023-08-29 01:59:14,774 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 563 transitions. [2023-08-29 01:59:14,775 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 563 transitions. [2023-08-29 01:59:14,778 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:14,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 563 transitions. [2023-08-29 01:59:14,785 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 01:59:14,791 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 01:59:14,792 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 01:59:14,793 INFO L175 Difference]: Start difference. First operand has 73 places, 88 transitions, 188 flow. Second operand 2 states and 563 transitions. [2023-08-29 01:59:14,794 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 188 flow [2023-08-29 01:59:14,798 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 01:59:14,801 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 109 flow [2023-08-29 01:59:14,803 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 01:59:14,808 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-29 01:59:14,808 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 109 flow [2023-08-29 01:59:14,809 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 01:59:14,809 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:14,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:59:14,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:59:14,810 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 01:59:14,819 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:14,820 INFO L85 PathProgramCache]: Analyzing trace with hash 1079661214, now seen corresponding path program 1 times [2023-08-29 01:59:14,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:14,823 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209358795] [2023-08-29 01:59:14,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:14,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:14,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:14,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:14,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:14,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209358795] [2023-08-29 01:59:14,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209358795] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:14,952 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:14,952 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:14,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [914105695] [2023-08-29 01:59:14,952 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:14,953 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:14,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:14,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:14,954 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:14,970 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 556 [2023-08-29 01:59:14,971 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 01:59:14,972 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:14,972 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 556 [2023-08-29 01:59:14,972 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:15,159 INFO L130 PetriNetUnfolder]: 912/1828 cut-off events. [2023-08-29 01:59:15,159 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-29 01:59:15,161 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 01:59:15,168 INFO L137 encePairwiseOnDemand]: 552/556 looper letters, 42 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2023-08-29 01:59:15,169 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 216 flow [2023-08-29 01:59:15,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:15,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:15,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2023-08-29 01:59:15,172 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47721822541966424 [2023-08-29 01:59:15,172 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2023-08-29 01:59:15,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2023-08-29 01:59:15,172 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:15,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2023-08-29 01:59:15,174 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 01:59:15,178 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 01:59:15,179 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 01:59:15,179 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 109 flow. Second operand 3 states and 796 transitions. [2023-08-29 01:59:15,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 62 transitions, 216 flow [2023-08-29 01:59:15,180 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 01:59:15,181 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 119 flow [2023-08-29 01:59:15,181 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 01:59:15,182 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-29 01:59:15,182 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 119 flow [2023-08-29 01:59:15,183 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 01:59:15,183 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:15,183 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-29 01:59:15,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:59:15,183 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 01:59:15,184 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:15,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1079727606, now seen corresponding path program 1 times [2023-08-29 01:59:15,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:15,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [203913586] [2023-08-29 01:59:15,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:15,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:15,243 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:15,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:15,243 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [203913586] [2023-08-29 01:59:15,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [203913586] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:15,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:15,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:15,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622042810] [2023-08-29 01:59:15,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:15,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:15,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:15,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:15,246 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:15,274 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 556 [2023-08-29 01:59:15,276 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 01:59:15,276 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:15,276 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 556 [2023-08-29 01:59:15,276 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:15,482 INFO L130 PetriNetUnfolder]: 1204/2176 cut-off events. [2023-08-29 01:59:15,482 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2023-08-29 01:59:15,484 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 01:59:15,492 INFO L137 encePairwiseOnDemand]: 550/556 looper letters, 66 selfloop transitions, 3 changer transitions 1/82 dead transitions. [2023-08-29 01:59:15,492 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 328 flow [2023-08-29 01:59:15,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:15,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:15,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-08-29 01:59:15,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460431654676259 [2023-08-29 01:59:15,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-08-29 01:59:15,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-08-29 01:59:15,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:15,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-08-29 01:59:15,497 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 01:59:15,500 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 01:59:15,501 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 01:59:15,501 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 119 flow. Second operand 3 states and 768 transitions. [2023-08-29 01:59:15,502 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 328 flow [2023-08-29 01:59:15,503 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 01:59:15,504 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 130 flow [2023-08-29 01:59:15,504 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 01:59:15,505 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-29 01:59:15,505 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 130 flow [2023-08-29 01:59:15,505 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 01:59:15,506 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:15,506 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 01:59:15,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:59:15,506 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 01:59:15,507 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:15,507 INFO L85 PathProgramCache]: Analyzing trace with hash -887963317, now seen corresponding path program 1 times [2023-08-29 01:59:15,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:15,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429532316] [2023-08-29 01:59:15,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:15,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:15,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:15,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:15,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:15,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429532316] [2023-08-29 01:59:15,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429532316] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:15,691 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:15,691 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:15,691 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808826541] [2023-08-29 01:59:15,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:15,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:15,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:15,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:15,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:15,726 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 556 [2023-08-29 01:59:15,728 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 01:59:15,728 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:15,728 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 556 [2023-08-29 01:59:15,728 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:15,893 INFO L130 PetriNetUnfolder]: 736/1322 cut-off events. [2023-08-29 01:59:15,893 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2023-08-29 01:59:15,895 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 01:59:15,901 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 55 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2023-08-29 01:59:15,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 294 flow [2023-08-29 01:59:15,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:15,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:15,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-29 01:59:15,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.486810551558753 [2023-08-29 01:59:15,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-29 01:59:15,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-29 01:59:15,916 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:15,917 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-29 01:59:15,919 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 01:59:15,922 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 01:59:15,923 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 01:59:15,923 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 130 flow. Second operand 3 states and 812 transitions. [2023-08-29 01:59:15,923 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 294 flow [2023-08-29 01:59:15,924 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 01:59:15,925 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 130 flow [2023-08-29 01:59:15,925 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 01:59:15,926 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -18 predicate places. [2023-08-29 01:59:15,926 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 130 flow [2023-08-29 01:59:15,927 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 01:59:15,927 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:15,927 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:15,927 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:59:15,928 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 01:59:15,928 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:15,928 INFO L85 PathProgramCache]: Analyzing trace with hash -817733143, now seen corresponding path program 1 times [2023-08-29 01:59:15,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:15,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441514104] [2023-08-29 01:59:15,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:15,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:15,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:15,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:15,975 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:15,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441514104] [2023-08-29 01:59:15,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441514104] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:15,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:15,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:15,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122899737] [2023-08-29 01:59:15,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:15,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:15,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:15,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:15,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:15,993 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 556 [2023-08-29 01:59:15,995 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 01:59:15,995 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:15,995 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 556 [2023-08-29 01:59:15,995 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:16,284 INFO L130 PetriNetUnfolder]: 1843/3199 cut-off events. [2023-08-29 01:59:16,284 INFO L131 PetriNetUnfolder]: For 346/346 co-relation queries the response was YES. [2023-08-29 01:59:16,289 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 01:59:16,303 INFO L137 encePairwiseOnDemand]: 545/556 looper letters, 65 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2023-08-29 01:59:16,304 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 350 flow [2023-08-29 01:59:16,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:16,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:16,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-29 01:59:16,306 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.486810551558753 [2023-08-29 01:59:16,307 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-29 01:59:16,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-29 01:59:16,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:16,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-29 01:59:16,309 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 01:59:16,312 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 01:59:16,313 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 01:59:16,314 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 130 flow. Second operand 3 states and 812 transitions. [2023-08-29 01:59:16,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 350 flow [2023-08-29 01:59:16,315 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 01:59:16,316 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 199 flow [2023-08-29 01:59:16,317 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 01:59:16,317 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -15 predicate places. [2023-08-29 01:59:16,318 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 199 flow [2023-08-29 01:59:16,318 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 01:59:16,318 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:16,319 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:16,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 01:59:16,319 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 01:59:16,319 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:16,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1100797449, now seen corresponding path program 1 times [2023-08-29 01:59:16,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:16,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993414780] [2023-08-29 01:59:16,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:16,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:16,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:16,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993414780] [2023-08-29 01:59:16,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993414780] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:16,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:16,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:16,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989997921] [2023-08-29 01:59:16,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:16,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:16,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:16,502 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:16,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:16,535 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 556 [2023-08-29 01:59:16,536 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 01:59:16,536 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:16,536 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 556 [2023-08-29 01:59:16,536 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:16,778 INFO L130 PetriNetUnfolder]: 1424/2629 cut-off events. [2023-08-29 01:59:16,778 INFO L131 PetriNetUnfolder]: For 651/659 co-relation queries the response was YES. [2023-08-29 01:59:16,784 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 01:59:16,796 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 49 selfloop transitions, 1 changer transitions 2/72 dead transitions. [2023-08-29 01:59:16,797 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 349 flow [2023-08-29 01:59:16,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:16,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:16,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 802 transitions. [2023-08-29 01:59:16,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48081534772182255 [2023-08-29 01:59:16,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 802 transitions. [2023-08-29 01:59:16,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 802 transitions. [2023-08-29 01:59:16,800 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:16,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 802 transitions. [2023-08-29 01:59:16,802 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 01:59:16,805 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 01:59:16,806 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 01:59:16,806 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 199 flow. Second operand 3 states and 802 transitions. [2023-08-29 01:59:16,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 349 flow [2023-08-29 01:59:16,810 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 01:59:16,811 INFO L231 Difference]: Finished difference. Result has 57 places, 58 transitions, 183 flow [2023-08-29 01:59:16,811 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 01:59:16,812 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -16 predicate places. [2023-08-29 01:59:16,812 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 58 transitions, 183 flow [2023-08-29 01:59:16,813 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 01:59:16,813 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:16,813 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:16,813 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 01:59:16,813 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 01:59:16,814 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:16,814 INFO L85 PathProgramCache]: Analyzing trace with hash -1014654163, now seen corresponding path program 1 times [2023-08-29 01:59:16,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:16,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471775605] [2023-08-29 01:59:16,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:16,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:16,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:16,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:16,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471775605] [2023-08-29 01:59:16,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471775605] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:16,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:16,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:16,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374565664] [2023-08-29 01:59:16,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:16,862 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:16,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:16,862 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:16,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:16,883 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 556 [2023-08-29 01:59:16,884 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 01:59:16,884 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:16,884 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 556 [2023-08-29 01:59:16,885 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:17,139 INFO L130 PetriNetUnfolder]: 1691/3002 cut-off events. [2023-08-29 01:59:17,140 INFO L131 PetriNetUnfolder]: For 371/409 co-relation queries the response was YES. [2023-08-29 01:59:17,145 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 01:59:17,155 INFO L137 encePairwiseOnDemand]: 550/556 looper letters, 47 selfloop transitions, 9 changer transitions 5/79 dead transitions. [2023-08-29 01:59:17,155 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 361 flow [2023-08-29 01:59:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:17,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:17,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2023-08-29 01:59:17,158 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4766187050359712 [2023-08-29 01:59:17,158 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2023-08-29 01:59:17,158 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2023-08-29 01:59:17,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:17,159 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2023-08-29 01:59:17,160 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 01:59:17,163 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 01:59:17,163 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 01:59:17,164 INFO L175 Difference]: Start difference. First operand has 57 places, 58 transitions, 183 flow. Second operand 3 states and 795 transitions. [2023-08-29 01:59:17,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 361 flow [2023-08-29 01:59:17,165 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 01:59:17,166 INFO L231 Difference]: Finished difference. Result has 59 places, 63 transitions, 244 flow [2023-08-29 01:59:17,167 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 01:59:17,167 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -14 predicate places. [2023-08-29 01:59:17,167 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 63 transitions, 244 flow [2023-08-29 01:59:17,168 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 01:59:17,168 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:17,168 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:17,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 01:59:17,168 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 01:59:17,169 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:17,169 INFO L85 PathProgramCache]: Analyzing trace with hash -542107194, now seen corresponding path program 1 times [2023-08-29 01:59:17,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:17,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10774809] [2023-08-29 01:59:17,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:17,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:17,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:17,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:17,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:17,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10774809] [2023-08-29 01:59:17,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [10774809] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:17,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:17,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:59:17,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323817199] [2023-08-29 01:59:17,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:17,219 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:59:17,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:17,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:59:17,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:59:17,239 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 556 [2023-08-29 01:59:17,240 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 01:59:17,240 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:17,240 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 556 [2023-08-29 01:59:17,240 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:17,486 INFO L130 PetriNetUnfolder]: 1719/3003 cut-off events. [2023-08-29 01:59:17,487 INFO L131 PetriNetUnfolder]: For 1389/1503 co-relation queries the response was YES. [2023-08-29 01:59:17,493 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 01:59:17,503 INFO L137 encePairwiseOnDemand]: 551/556 looper letters, 50 selfloop transitions, 8 changer transitions 4/80 dead transitions. [2023-08-29 01:59:17,503 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 421 flow [2023-08-29 01:59:17,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:59:17,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:59:17,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2023-08-29 01:59:17,506 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748201438848921 [2023-08-29 01:59:17,506 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 792 transitions. [2023-08-29 01:59:17,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 792 transitions. [2023-08-29 01:59:17,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:17,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 792 transitions. [2023-08-29 01:59:17,508 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 01:59:17,511 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 01:59:17,511 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 01:59:17,511 INFO L175 Difference]: Start difference. First operand has 59 places, 63 transitions, 244 flow. Second operand 3 states and 792 transitions. [2023-08-29 01:59:17,512 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 421 flow [2023-08-29 01:59:17,515 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 01:59:17,517 INFO L231 Difference]: Finished difference. Result has 59 places, 67 transitions, 287 flow [2023-08-29 01:59:17,517 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 01:59:17,517 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -14 predicate places. [2023-08-29 01:59:17,518 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 67 transitions, 287 flow [2023-08-29 01:59:17,518 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 01:59:17,518 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:17,518 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 01:59:17,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 01:59:17,519 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 01:59:17,519 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:17,519 INFO L85 PathProgramCache]: Analyzing trace with hash -877160077, now seen corresponding path program 1 times [2023-08-29 01:59:17,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:17,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1440763112] [2023-08-29 01:59:17,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:17,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:17,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:17,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:17,654 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:17,654 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1440763112] [2023-08-29 01:59:17,655 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1440763112] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:17,655 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:17,655 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 01:59:17,655 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [638969066] [2023-08-29 01:59:17,655 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:17,658 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 01:59:17,658 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:17,659 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 01:59:17,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-29 01:59:17,694 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 556 [2023-08-29 01:59:17,696 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 01:59:17,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:17,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 556 [2023-08-29 01:59:17,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:18,181 INFO L130 PetriNetUnfolder]: 2825/4935 cut-off events. [2023-08-29 01:59:18,181 INFO L131 PetriNetUnfolder]: For 4095/4388 co-relation queries the response was YES. [2023-08-29 01:59:18,192 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 01:59:18,208 INFO L137 encePairwiseOnDemand]: 549/556 looper letters, 107 selfloop transitions, 15 changer transitions 2/143 dead transitions. [2023-08-29 01:59:18,208 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 143 transitions, 857 flow [2023-08-29 01:59:18,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-29 01:59:18,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-29 01:59:18,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1311 transitions. [2023-08-29 01:59:18,212 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47158273381294963 [2023-08-29 01:59:18,212 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1311 transitions. [2023-08-29 01:59:18,212 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1311 transitions. [2023-08-29 01:59:18,213 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:18,213 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1311 transitions. [2023-08-29 01:59:18,215 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 01:59:18,219 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 01:59:18,220 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 01:59:18,220 INFO L175 Difference]: Start difference. First operand has 59 places, 67 transitions, 287 flow. Second operand 5 states and 1311 transitions. [2023-08-29 01:59:18,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 143 transitions, 857 flow [2023-08-29 01:59:18,230 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 01:59:18,232 INFO L231 Difference]: Finished difference. Result has 66 places, 80 transitions, 423 flow [2023-08-29 01:59:18,232 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 01:59:18,233 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -7 predicate places. [2023-08-29 01:59:18,233 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 80 transitions, 423 flow [2023-08-29 01:59:18,234 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 01:59:18,234 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:18,234 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 01:59:18,234 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 01:59:18,234 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 01:59:18,234 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:18,235 INFO L85 PathProgramCache]: Analyzing trace with hash 764769679, now seen corresponding path program 2 times [2023-08-29 01:59:18,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:18,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97490970] [2023-08-29 01:59:18,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:18,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:18,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:59:18,369 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:59:18,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:59:18,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97490970] [2023-08-29 01:59:18,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97490970] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:59:18,370 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:59:18,370 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-29 01:59:18,370 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1183465120] [2023-08-29 01:59:18,370 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:59:18,370 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-29 01:59:18,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:59:18,371 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-29 01:59:18,371 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-29 01:59:18,398 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 556 [2023-08-29 01:59:18,400 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 01:59:18,400 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:59:18,400 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 556 [2023-08-29 01:59:18,400 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:59:18,952 INFO L130 PetriNetUnfolder]: 3331/5727 cut-off events. [2023-08-29 01:59:18,952 INFO L131 PetriNetUnfolder]: For 7856/8115 co-relation queries the response was YES. [2023-08-29 01:59:18,965 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 01:59:18,982 INFO L137 encePairwiseOnDemand]: 547/556 looper letters, 89 selfloop transitions, 31 changer transitions 5/144 dead transitions. [2023-08-29 01:59:18,983 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 144 transitions, 990 flow [2023-08-29 01:59:18,983 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-29 01:59:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-29 01:59:18,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1058 transitions. [2023-08-29 01:59:18,986 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47571942446043164 [2023-08-29 01:59:18,986 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1058 transitions. [2023-08-29 01:59:18,986 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1058 transitions. [2023-08-29 01:59:18,987 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:59:18,987 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1058 transitions. [2023-08-29 01:59:18,989 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 01:59:18,992 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 01:59:18,993 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 01:59:18,993 INFO L175 Difference]: Start difference. First operand has 66 places, 80 transitions, 423 flow. Second operand 4 states and 1058 transitions. [2023-08-29 01:59:18,993 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 144 transitions, 990 flow [2023-08-29 01:59:19,001 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 01:59:19,003 INFO L231 Difference]: Finished difference. Result has 72 places, 102 transitions, 738 flow [2023-08-29 01:59:19,003 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 01:59:19,004 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -1 predicate places. [2023-08-29 01:59:19,004 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 102 transitions, 738 flow [2023-08-29 01:59:19,004 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 01:59:19,005 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:59:19,005 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 01:59:19,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 01:59:19,005 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 01:59:19,005 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:59:19,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1036710662, now seen corresponding path program 1 times [2023-08-29 01:59:19,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:59:19,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760140294] [2023-08-29 01:59:19,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:59:19,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:59:19,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:59:19,028 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-29 01:59:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-29 01:59:19,073 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-29 01:59:19,074 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-29 01:59:19,075 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2023-08-29 01:59:19,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-08-29 01:59:19,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-08-29 01:59:19,076 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-08-29 01:59:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-08-29 01:59:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-08-29 01:59:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-08-29 01:59:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-08-29 01:59:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-08-29 01:59:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-08-29 01:59:19,077 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-08-29 01:59:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-08-29 01:59:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-08-29 01:59:19,078 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-08-29 01:59:19,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-08-29 01:59:19,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-08-29 01:59:19,080 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2023-08-29 01:59:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-08-29 01:59:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-08-29 01:59:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2023-08-29 01:59:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2023-08-29 01:59:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-08-29 01:59:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-08-29 01:59:19,081 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-08-29 01:59:19,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-08-29 01:59:19,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-08-29 01:59:19,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-08-29 01:59:19,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-08-29 01:59:19,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-08-29 01:59:19,082 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-08-29 01:59:19,083 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-08-29 01:59:19,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 01:59:19,083 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:59:19,089 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:59:19,089 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:59:19,135 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:59:19 BasicIcfg [2023-08-29 01:59:19,137 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:59:19,137 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:59:19,138 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:59:19,138 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:59:19,138 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:59:04" (3/4) ... [2023-08-29 01:59:19,140 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-29 01:59:19,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:59:19,141 INFO L158 Benchmark]: Toolchain (without parser) took 16229.50ms. Allocated memory was 73.4MB in the beginning and 295.7MB in the end (delta: 222.3MB). Free memory was 48.0MB in the beginning and 159.2MB in the end (delta: -111.3MB). Peak memory consumption was 110.7MB. Max. memory is 16.1GB. [2023-08-29 01:59:19,142 INFO L158 Benchmark]: CDTParser took 0.49ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:19,142 INFO L158 Benchmark]: CACSL2BoogieTranslator took 937.96ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 47.7MB in the beginning and 70.1MB in the end (delta: -22.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. [2023-08-29 01:59:19,143 INFO L158 Benchmark]: Boogie Procedure Inliner took 104.26ms. Allocated memory is still 98.6MB. Free memory was 70.1MB in the beginning and 66.5MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 01:59:19,143 INFO L158 Benchmark]: Boogie Preprocessor took 59.94ms. Allocated memory is still 98.6MB. Free memory was 66.5MB in the beginning and 63.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 01:59:19,143 INFO L158 Benchmark]: RCFGBuilder took 725.80ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 67.0MB in the end (delta: -3.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. [2023-08-29 01:59:19,143 INFO L158 Benchmark]: TraceAbstraction took 14390.86ms. Allocated memory was 98.6MB in the beginning and 295.7MB in the end (delta: 197.1MB). Free memory was 66.4MB in the beginning and 159.2MB in the end (delta: -92.8MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. [2023-08-29 01:59:19,144 INFO L158 Benchmark]: Witness Printer took 3.21ms. Allocated memory is still 295.7MB. Free memory is still 159.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:59:19,145 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.49ms. Allocated memory is still 73.4MB. Free memory was 51.2MB in the beginning and 51.1MB in the end (delta: 83.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 937.96ms. Allocated memory was 73.4MB in the beginning and 98.6MB in the end (delta: 25.2MB). Free memory was 47.7MB in the beginning and 70.1MB in the end (delta: -22.4MB). Peak memory consumption was 44.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 104.26ms. Allocated memory is still 98.6MB. Free memory was 70.1MB in the beginning and 66.5MB in the end (delta: 3.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 59.94ms. Allocated memory is still 98.6MB. Free memory was 66.5MB in the beginning and 63.3MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 725.80ms. Allocated memory is still 98.6MB. Free memory was 63.3MB in the beginning and 67.0MB in the end (delta: -3.7MB). Peak memory consumption was 30.3MB. Max. memory is 16.1GB. * TraceAbstraction took 14390.86ms. Allocated memory was 98.6MB in the beginning and 295.7MB in the end (delta: 197.1MB). Free memory was 66.4MB in the beginning and 159.2MB in the end (delta: -92.8MB). Peak memory consumption was 103.4MB. Max. memory is 16.1GB. * Witness Printer took 3.21ms. Allocated memory is still 295.7MB. Free memory is still 159.2MB. 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: 9.0s, 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: 14.2s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 3.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 534 SdHoareTripleChecker+Valid, 1.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.8s 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, 0.8s 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 01:59:19,225 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE