./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 BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:57:53,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:57:53,401 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:57:53,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:57:53,436 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:57:53,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:57:53,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:57:53,442 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:57:53,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:57:53,448 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:57:53,448 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:57:53,450 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:57:53,450 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:57:53,452 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:57:53,453 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:57:53,455 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:57:53,456 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:57:53,457 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:57:53,458 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:57:53,461 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:57:53,462 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:57:53,463 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:57:53,463 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:57:53,464 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:57:53,469 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:57:53,469 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:57:53,469 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:57:53,470 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:57:53,471 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:57:53,471 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:57:53,471 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:57:53,475 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:57:53,476 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:57:53,477 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:57:53,477 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:57:53,478 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:57:53,478 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:57:53,478 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:57:53,478 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:57:53,479 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:57:53,479 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:57:53,480 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:57:53,505 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:57:53,505 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:57:53,506 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:57:53,506 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:57:53,507 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:57:53,507 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:57:53,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:57:53,508 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:57:53,508 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:57:53,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:57:53,508 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:57:53,509 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:57:53,509 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:57:53,509 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:57:53,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:57:53,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:57:53,509 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:57:53,509 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:57:53,510 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:57:53,510 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:57:53,510 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:57:53,510 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:57:53,510 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:57:53,510 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:57:53,510 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:57:53,511 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:57:53,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:53,511 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:57:53,511 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:57:53,511 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:57:53,511 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:57:53,511 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:57:53,512 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:57:53,512 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:57:53,512 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:57:53,512 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:57:53,512 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:57:53,512 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> bc4ff81e27c3c9c08a24375d30c2902a85848d2bd345364dfe2b3c3839c5dc11 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:57:53,748 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:57:53,775 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:57:53,776 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:57:53,777 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:57:53,780 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:57:53,781 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/04-mutex_35-trylock_rc.i [2023-08-31 19:57:54,758 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:57:55,007 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:57:55,008 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/04-mutex_35-trylock_rc.i [2023-08-31 19:57:55,026 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fae393a5/616d51d497ef49b4bb7713a30d995635/FLAGcee74dfb6 [2023-08-31 19:57:55,035 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fae393a5/616d51d497ef49b4bb7713a30d995635 [2023-08-31 19:57:55,037 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:57:55,038 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:57:55,040 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:55,040 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:57:55,042 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:57:55,042 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,043 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45590dfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55, skipping insertion in model container [2023-08-31 19:57:55,043 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,047 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:57:55,085 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:57:55,523 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:55,538 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:57:55,583 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:57:55,671 WARN L667 CHandler]: The function strerror is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:57:55,672 WARN L667 CHandler]: The function sleep is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:57:55,672 WARN L667 CHandler]: The function time is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:57:55,672 WARN L667 CHandler]: The function fprintf is called, but not defined or handled by StandardFunctionHandler. [2023-08-31 19:57:55,676 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:57:55,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55 WrapperNode [2023-08-31 19:57:55,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:57:55,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:55,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:57:55,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:57:55,682 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,708 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,732 INFO L138 Inliner]: procedures = 524, calls = 67, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 145 [2023-08-31 19:57:55,735 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:57:55,735 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:57:55,735 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:57:55,735 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:57:55,741 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,741 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,745 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,776 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,779 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,794 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,798 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:57:55,798 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:57:55,798 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:57:55,798 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:57:55,799 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (1/1) ... [2023-08-31 19:57:55,803 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:57:55,817 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:57:55,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:57:55,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:57:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure counter_thread [2023-08-31 19:57:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure counter_thread [2023-08-31 19:57:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure sleep [2023-08-31 19:57:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure monitor_thread [2023-08-31 19:57:55,858 INFO L138 BoogieDeclarations]: Found implementation of procedure monitor_thread [2023-08-31 19:57:55,858 INFO L130 BoogieDeclarations]: Found specification of procedure strerror [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:57:55,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure fprintf [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:57:55,859 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexTryLock [2023-08-31 19:57:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure time [2023-08-31 19:57:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:57:55,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:57:55,861 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:57:56,073 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:57:56,074 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:57:56,316 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:57:56,322 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:57:56,322 INFO L302 CfgBuilder]: Removed 19 assume(true) statements. [2023-08-31 19:57:56,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:56 BoogieIcfgContainer [2023-08-31 19:57:56,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:57:56,325 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:57:56,325 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:57:56,327 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:57:56,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:57:55" (1/3) ... [2023-08-31 19:57:56,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35706614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:56, skipping insertion in model container [2023-08-31 19:57:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:57:55" (2/3) ... [2023-08-31 19:57:56,328 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35706614 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:57:56, skipping insertion in model container [2023-08-31 19:57:56,328 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:56" (3/3) ... [2023-08-31 19:57:56,345 INFO L112 eAbstractionObserver]: Analyzing ICFG 04-mutex_35-trylock_rc.i [2023-08-31 19:57:56,350 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:57:56,356 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:57:56,356 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2023-08-31 19:57:56,356 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:57:56,445 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 19:57:56,488 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 264 places, 288 transitions, 592 flow [2023-08-31 19:57:56,599 INFO L130 PetriNetUnfolder]: 31/286 cut-off events. [2023-08-31 19:57:56,599 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:57:56,607 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. [2023-08-31 19:57:56,607 INFO L82 GeneralOperation]: Start removeDead. Operand has 264 places, 288 transitions, 592 flow [2023-08-31 19:57:56,615 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 254 places, 276 transitions, 564 flow [2023-08-31 19:57:56,618 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:57:56,632 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 254 places, 276 transitions, 564 flow [2023-08-31 19:57:56,637 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 254 places, 276 transitions, 564 flow [2023-08-31 19:57:56,638 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 254 places, 276 transitions, 564 flow [2023-08-31 19:57:56,681 INFO L130 PetriNetUnfolder]: 29/276 cut-off events. [2023-08-31 19:57:56,681 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 19:57:56,684 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. [2023-08-31 19:57:56,691 INFO L119 LiptonReduction]: Number of co-enabled transitions 21896 [2023-08-31 19:58:04,208 INFO L134 LiptonReduction]: Checked pairs total: 54617 [2023-08-31 19:58:04,209 INFO L136 LiptonReduction]: Total number of compositions: 268 [2023-08-31 19:58:04,218 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:58:04,222 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@176b36bc, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:58:04,222 INFO L358 AbstractCegarLoop]: Starting to check reachability of 31 error locations. [2023-08-31 19:58:04,223 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:58:04,223 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:58:04,223 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:04,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:58:04,224 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)] === [2023-08-31 19:58:04,227 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:04,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1140, now seen corresponding path program 1 times [2023-08-31 19:58:04,232 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:04,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [213262118] [2023-08-31 19:58:04,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:04,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:04,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:04,418 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:04,419 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [213262118] [2023-08-31 19:58:04,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [213262118] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:04,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:04,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:58:04,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899093924] [2023-08-31 19:58:04,421 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:04,426 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:58:04,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:04,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:58:04,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:58:04,450 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 556 [2023-08-31 19:58:04,454 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) [2023-08-31 19:58:04,454 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:04,454 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 556 [2023-08-31 19:58:04,455 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:04,631 INFO L130 PetriNetUnfolder]: 882/1845 cut-off events. [2023-08-31 19:58:04,631 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2023-08-31 19:58:04,633 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. [2023-08-31 19:58:04,639 INFO L137 encePairwiseOnDemand]: 541/556 looper letters, 33 selfloop transitions, 0 changer transitions 1/54 dead transitions. [2023-08-31 19:58:04,640 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 54 transitions, 188 flow [2023-08-31 19:58:04,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:58:04,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:58:04,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 563 transitions. [2023-08-31 19:58:04,652 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5062949640287769 [2023-08-31 19:58:04,653 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 563 transitions. [2023-08-31 19:58:04,653 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 563 transitions. [2023-08-31 19:58:04,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:04,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 563 transitions. [2023-08-31 19:58:04,660 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) [2023-08-31 19:58:04,668 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) [2023-08-31 19:58:04,669 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) [2023-08-31 19:58:04,670 INFO L175 Difference]: Start difference. First operand has 73 places, 88 transitions, 188 flow. Second operand 2 states and 563 transitions. [2023-08-31 19:58:04,670 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 54 transitions, 188 flow [2023-08-31 19:58:04,673 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 54 transitions, 180 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 19:58:04,675 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 109 flow [2023-08-31 19:58:04,676 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} [2023-08-31 19:58:04,680 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-31 19:58:04,680 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 109 flow [2023-08-31 19:58:04,680 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) [2023-08-31 19:58:04,681 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:04,681 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:58:04,681 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:58:04,681 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)] === [2023-08-31 19:58:04,685 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:04,685 INFO L85 PathProgramCache]: Analyzing trace with hash 1079661214, now seen corresponding path program 1 times [2023-08-31 19:58:04,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:04,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143930597] [2023-08-31 19:58:04,689 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:04,689 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:04,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:04,820 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:04,821 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143930597] [2023-08-31 19:58:04,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143930597] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:04,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:04,821 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:04,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361507287] [2023-08-31 19:58:04,821 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:04,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:04,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:04,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:04,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:04,835 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 250 out of 556 [2023-08-31 19:58:04,836 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) [2023-08-31 19:58:04,836 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:04,836 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 250 of 556 [2023-08-31 19:58:04,836 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:04,965 INFO L130 PetriNetUnfolder]: 912/1828 cut-off events. [2023-08-31 19:58:04,966 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-08-31 19:58:04,967 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. [2023-08-31 19:58:04,972 INFO L137 encePairwiseOnDemand]: 552/556 looper letters, 42 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2023-08-31 19:58:04,972 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 62 transitions, 216 flow [2023-08-31 19:58:04,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:04,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:04,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 796 transitions. [2023-08-31 19:58:04,974 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47721822541966424 [2023-08-31 19:58:04,974 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 796 transitions. [2023-08-31 19:58:04,974 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 796 transitions. [2023-08-31 19:58:04,975 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:04,975 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 796 transitions. [2023-08-31 19:58:04,977 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) [2023-08-31 19:58:04,979 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) [2023-08-31 19:58:04,980 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) [2023-08-31 19:58:04,980 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 109 flow. Second operand 3 states and 796 transitions. [2023-08-31 19:58:04,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 62 transitions, 216 flow [2023-08-31 19:58:04,981 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 62 transitions, 216 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:58:04,981 INFO L231 Difference]: Finished difference. Result has 54 places, 53 transitions, 119 flow [2023-08-31 19:58:04,982 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} [2023-08-31 19:58:04,984 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-31 19:58:04,984 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 53 transitions, 119 flow [2023-08-31 19:58:04,985 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) [2023-08-31 19:58:04,985 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:04,985 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 19:58:04,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:58:04,985 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)] === [2023-08-31 19:58:04,987 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:04,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1079727606, now seen corresponding path program 1 times [2023-08-31 19:58:04,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:04,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343877355] [2023-08-31 19:58:04,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:04,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:05,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:05,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:05,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:05,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343877355] [2023-08-31 19:58:05,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343877355] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:05,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:05,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:05,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281813434] [2023-08-31 19:58:05,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:05,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:05,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:05,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:05,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:05,064 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 556 [2023-08-31 19:58:05,066 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) [2023-08-31 19:58:05,066 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:05,066 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 556 [2023-08-31 19:58:05,066 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:05,206 INFO L130 PetriNetUnfolder]: 1204/2176 cut-off events. [2023-08-31 19:58:05,207 INFO L131 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2023-08-31 19:58:05,208 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. [2023-08-31 19:58:05,214 INFO L137 encePairwiseOnDemand]: 550/556 looper letters, 66 selfloop transitions, 3 changer transitions 1/82 dead transitions. [2023-08-31 19:58:05,214 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 82 transitions, 328 flow [2023-08-31 19:58:05,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:05,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:05,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 768 transitions. [2023-08-31 19:58:05,216 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.460431654676259 [2023-08-31 19:58:05,216 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 768 transitions. [2023-08-31 19:58:05,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 768 transitions. [2023-08-31 19:58:05,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:05,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 768 transitions. [2023-08-31 19:58:05,218 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) [2023-08-31 19:58:05,220 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) [2023-08-31 19:58:05,220 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) [2023-08-31 19:58:05,220 INFO L175 Difference]: Start difference. First operand has 54 places, 53 transitions, 119 flow. Second operand 3 states and 768 transitions. [2023-08-31 19:58:05,221 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 82 transitions, 328 flow [2023-08-31 19:58:05,221 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 82 transitions, 328 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:58:05,222 INFO L231 Difference]: Finished difference. Result has 54 places, 52 transitions, 130 flow [2023-08-31 19:58:05,222 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} [2023-08-31 19:58:05,223 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -19 predicate places. [2023-08-31 19:58:05,223 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 52 transitions, 130 flow [2023-08-31 19:58:05,224 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) [2023-08-31 19:58:05,224 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:05,224 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 19:58:05,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:58:05,224 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)] === [2023-08-31 19:58:05,224 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:05,224 INFO L85 PathProgramCache]: Analyzing trace with hash -887963317, now seen corresponding path program 1 times [2023-08-31 19:58:05,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:05,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491721916] [2023-08-31 19:58:05,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:05,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:05,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:05,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:05,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491721916] [2023-08-31 19:58:05,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [491721916] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:05,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:05,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:05,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424406547] [2023-08-31 19:58:05,345 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:05,345 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:05,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:05,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:05,346 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:05,375 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 556 [2023-08-31 19:58:05,375 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) [2023-08-31 19:58:05,376 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:05,376 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 556 [2023-08-31 19:58:05,376 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:05,495 INFO L130 PetriNetUnfolder]: 736/1322 cut-off events. [2023-08-31 19:58:05,495 INFO L131 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2023-08-31 19:58:05,496 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. [2023-08-31 19:58:05,500 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 55 selfloop transitions, 1 changer transitions 0/73 dead transitions. [2023-08-31 19:58:05,500 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 73 transitions, 294 flow [2023-08-31 19:58:05,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:05,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:05,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-31 19:58:05,502 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.486810551558753 [2023-08-31 19:58:05,502 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-31 19:58:05,503 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-31 19:58:05,503 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:05,503 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-31 19:58:05,504 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) [2023-08-31 19:58:05,507 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) [2023-08-31 19:58:05,507 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) [2023-08-31 19:58:05,508 INFO L175 Difference]: Start difference. First operand has 54 places, 52 transitions, 130 flow. Second operand 3 states and 812 transitions. [2023-08-31 19:58:05,508 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 73 transitions, 294 flow [2023-08-31 19:58:05,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 55 places, 73 transitions, 294 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:58:05,509 INFO L231 Difference]: Finished difference. Result has 55 places, 51 transitions, 130 flow [2023-08-31 19:58:05,510 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} [2023-08-31 19:58:05,510 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -18 predicate places. [2023-08-31 19:58:05,510 INFO L495 AbstractCegarLoop]: Abstraction has has 55 places, 51 transitions, 130 flow [2023-08-31 19:58:05,511 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) [2023-08-31 19:58:05,511 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:05,511 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:05,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:58:05,511 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)] === [2023-08-31 19:58:05,512 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:05,512 INFO L85 PathProgramCache]: Analyzing trace with hash -817733143, now seen corresponding path program 1 times [2023-08-31 19:58:05,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:05,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741502138] [2023-08-31 19:58:05,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:05,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:05,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:05,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:05,547 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:05,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741502138] [2023-08-31 19:58:05,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741502138] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:05,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:05,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:05,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003757943] [2023-08-31 19:58:05,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:05,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:05,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:05,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:05,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:05,561 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 556 [2023-08-31 19:58:05,562 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) [2023-08-31 19:58:05,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:05,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 556 [2023-08-31 19:58:05,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:05,740 INFO L130 PetriNetUnfolder]: 1843/3199 cut-off events. [2023-08-31 19:58:05,740 INFO L131 PetriNetUnfolder]: For 346/346 co-relation queries the response was YES. [2023-08-31 19:58:05,743 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. [2023-08-31 19:58:05,752 INFO L137 encePairwiseOnDemand]: 545/556 looper letters, 65 selfloop transitions, 8 changer transitions 0/84 dead transitions. [2023-08-31 19:58:05,752 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 84 transitions, 350 flow [2023-08-31 19:58:05,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:05,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:05,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 812 transitions. [2023-08-31 19:58:05,754 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.486810551558753 [2023-08-31 19:58:05,754 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 812 transitions. [2023-08-31 19:58:05,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 812 transitions. [2023-08-31 19:58:05,755 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:05,755 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 812 transitions. [2023-08-31 19:58:05,756 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) [2023-08-31 19:58:05,758 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) [2023-08-31 19:58:05,759 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) [2023-08-31 19:58:05,759 INFO L175 Difference]: Start difference. First operand has 55 places, 51 transitions, 130 flow. Second operand 3 states and 812 transitions. [2023-08-31 19:58:05,759 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 84 transitions, 350 flow [2023-08-31 19:58:05,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 84 transitions, 348 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:05,763 INFO L231 Difference]: Finished difference. Result has 58 places, 59 transitions, 199 flow [2023-08-31 19:58:05,763 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} [2023-08-31 19:58:05,765 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -15 predicate places. [2023-08-31 19:58:05,766 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 59 transitions, 199 flow [2023-08-31 19:58:05,766 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) [2023-08-31 19:58:05,766 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:05,766 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:05,766 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:58:05,767 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)] === [2023-08-31 19:58:05,767 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:05,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1100797449, now seen corresponding path program 1 times [2023-08-31 19:58:05,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:05,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328690755] [2023-08-31 19:58:05,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:05,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:05,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:05,883 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:05,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:05,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328690755] [2023-08-31 19:58:05,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328690755] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:05,883 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:05,883 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:05,884 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539870061] [2023-08-31 19:58:05,884 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:05,884 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:05,884 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:05,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:05,884 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:05,905 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 556 [2023-08-31 19:58:05,906 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) [2023-08-31 19:58:05,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:05,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 556 [2023-08-31 19:58:05,906 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:06,081 INFO L130 PetriNetUnfolder]: 1424/2629 cut-off events. [2023-08-31 19:58:06,081 INFO L131 PetriNetUnfolder]: For 651/659 co-relation queries the response was YES. [2023-08-31 19:58:06,085 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. [2023-08-31 19:58:06,092 INFO L137 encePairwiseOnDemand]: 554/556 looper letters, 49 selfloop transitions, 1 changer transitions 2/72 dead transitions. [2023-08-31 19:58:06,092 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 349 flow [2023-08-31 19:58:06,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:06,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:06,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 802 transitions. [2023-08-31 19:58:06,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48081534772182255 [2023-08-31 19:58:06,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 802 transitions. [2023-08-31 19:58:06,094 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 802 transitions. [2023-08-31 19:58:06,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:06,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 802 transitions. [2023-08-31 19:58:06,096 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) [2023-08-31 19:58:06,098 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) [2023-08-31 19:58:06,098 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) [2023-08-31 19:58:06,098 INFO L175 Difference]: Start difference. First operand has 58 places, 59 transitions, 199 flow. Second operand 3 states and 802 transitions. [2023-08-31 19:58:06,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 349 flow [2023-08-31 19:58:06,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 72 transitions, 327 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:58:06,102 INFO L231 Difference]: Finished difference. Result has 57 places, 58 transitions, 183 flow [2023-08-31 19:58:06,102 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} [2023-08-31 19:58:06,102 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -16 predicate places. [2023-08-31 19:58:06,102 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 58 transitions, 183 flow [2023-08-31 19:58:06,103 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) [2023-08-31 19:58:06,103 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:06,103 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:06,103 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:58:06,103 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)] === [2023-08-31 19:58:06,103 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:06,103 INFO L85 PathProgramCache]: Analyzing trace with hash -1014654163, now seen corresponding path program 1 times [2023-08-31 19:58:06,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:06,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [697903904] [2023-08-31 19:58:06,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:06,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:06,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:06,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:06,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:06,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [697903904] [2023-08-31 19:58:06,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [697903904] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:06,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:06,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:06,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280954397] [2023-08-31 19:58:06,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:06,141 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:06,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:06,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:06,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:06,157 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 556 [2023-08-31 19:58:06,158 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) [2023-08-31 19:58:06,158 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:06,158 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 556 [2023-08-31 19:58:06,158 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:06,353 INFO L130 PetriNetUnfolder]: 1691/3002 cut-off events. [2023-08-31 19:58:06,353 INFO L131 PetriNetUnfolder]: For 371/409 co-relation queries the response was YES. [2023-08-31 19:58:06,356 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. [2023-08-31 19:58:06,363 INFO L137 encePairwiseOnDemand]: 550/556 looper letters, 47 selfloop transitions, 9 changer transitions 5/79 dead transitions. [2023-08-31 19:58:06,363 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 79 transitions, 361 flow [2023-08-31 19:58:06,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:06,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:06,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 795 transitions. [2023-08-31 19:58:06,367 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4766187050359712 [2023-08-31 19:58:06,367 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 795 transitions. [2023-08-31 19:58:06,367 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 795 transitions. [2023-08-31 19:58:06,367 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:06,367 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 795 transitions. [2023-08-31 19:58:06,368 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) [2023-08-31 19:58:06,370 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) [2023-08-31 19:58:06,370 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) [2023-08-31 19:58:06,370 INFO L175 Difference]: Start difference. First operand has 57 places, 58 transitions, 183 flow. Second operand 3 states and 795 transitions. [2023-08-31 19:58:06,370 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 79 transitions, 361 flow [2023-08-31 19:58:06,371 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 79 transitions, 360 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:06,372 INFO L231 Difference]: Finished difference. Result has 59 places, 63 transitions, 244 flow [2023-08-31 19:58:06,372 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} [2023-08-31 19:58:06,372 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -14 predicate places. [2023-08-31 19:58:06,373 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 63 transitions, 244 flow [2023-08-31 19:58:06,373 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) [2023-08-31 19:58:06,373 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:06,373 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:06,373 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:58:06,373 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)] === [2023-08-31 19:58:06,373 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:06,373 INFO L85 PathProgramCache]: Analyzing trace with hash -542107194, now seen corresponding path program 1 times [2023-08-31 19:58:06,373 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:06,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [593402044] [2023-08-31 19:58:06,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:06,374 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:06,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:06,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:06,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:06,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [593402044] [2023-08-31 19:58:06,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [593402044] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:06,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:06,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:58:06,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1508859329] [2023-08-31 19:58:06,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:06,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:58:06,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:06,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:58:06,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:58:06,420 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 556 [2023-08-31 19:58:06,420 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) [2023-08-31 19:58:06,420 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:06,420 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 556 [2023-08-31 19:58:06,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:06,592 INFO L130 PetriNetUnfolder]: 1719/3003 cut-off events. [2023-08-31 19:58:06,592 INFO L131 PetriNetUnfolder]: For 1389/1503 co-relation queries the response was YES. [2023-08-31 19:58:06,596 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. [2023-08-31 19:58:06,603 INFO L137 encePairwiseOnDemand]: 551/556 looper letters, 50 selfloop transitions, 8 changer transitions 4/80 dead transitions. [2023-08-31 19:58:06,603 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 80 transitions, 421 flow [2023-08-31 19:58:06,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:58:06,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:58:06,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 792 transitions. [2023-08-31 19:58:06,605 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4748201438848921 [2023-08-31 19:58:06,605 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 792 transitions. [2023-08-31 19:58:06,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 792 transitions. [2023-08-31 19:58:06,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:06,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 792 transitions. [2023-08-31 19:58:06,606 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) [2023-08-31 19:58:06,608 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) [2023-08-31 19:58:06,608 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) [2023-08-31 19:58:06,608 INFO L175 Difference]: Start difference. First operand has 59 places, 63 transitions, 244 flow. Second operand 3 states and 792 transitions. [2023-08-31 19:58:06,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 80 transitions, 421 flow [2023-08-31 19:58:06,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 80 transitions, 410 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:06,611 INFO L231 Difference]: Finished difference. Result has 59 places, 67 transitions, 287 flow [2023-08-31 19:58:06,612 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} [2023-08-31 19:58:06,612 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -14 predicate places. [2023-08-31 19:58:06,612 INFO L495 AbstractCegarLoop]: Abstraction has has 59 places, 67 transitions, 287 flow [2023-08-31 19:58:06,612 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) [2023-08-31 19:58:06,612 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:06,612 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:06,612 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:58:06,613 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)] === [2023-08-31 19:58:06,613 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:06,613 INFO L85 PathProgramCache]: Analyzing trace with hash -877160077, now seen corresponding path program 1 times [2023-08-31 19:58:06,613 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:06,613 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374783061] [2023-08-31 19:58:06,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:06,613 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:06,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:06,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:06,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:06,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374783061] [2023-08-31 19:58:06,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1374783061] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:06,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:06,692 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 19:58:06,692 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887356897] [2023-08-31 19:58:06,692 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:06,692 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 19:58:06,692 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:06,693 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 19:58:06,693 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-08-31 19:58:06,719 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 556 [2023-08-31 19:58:06,720 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) [2023-08-31 19:58:06,720 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:06,720 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 556 [2023-08-31 19:58:06,720 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:07,058 INFO L130 PetriNetUnfolder]: 2825/4935 cut-off events. [2023-08-31 19:58:07,058 INFO L131 PetriNetUnfolder]: For 4095/4388 co-relation queries the response was YES. [2023-08-31 19:58:07,065 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. [2023-08-31 19:58:07,076 INFO L137 encePairwiseOnDemand]: 549/556 looper letters, 107 selfloop transitions, 15 changer transitions 2/143 dead transitions. [2023-08-31 19:58:07,076 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 143 transitions, 857 flow [2023-08-31 19:58:07,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-08-31 19:58:07,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-08-31 19:58:07,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1311 transitions. [2023-08-31 19:58:07,079 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47158273381294963 [2023-08-31 19:58:07,079 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1311 transitions. [2023-08-31 19:58:07,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1311 transitions. [2023-08-31 19:58:07,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:07,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1311 transitions. [2023-08-31 19:58:07,081 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) [2023-08-31 19:58:07,084 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) [2023-08-31 19:58:07,084 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) [2023-08-31 19:58:07,084 INFO L175 Difference]: Start difference. First operand has 59 places, 67 transitions, 287 flow. Second operand 5 states and 1311 transitions. [2023-08-31 19:58:07,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 143 transitions, 857 flow [2023-08-31 19:58:07,091 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 143 transitions, 841 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:58:07,093 INFO L231 Difference]: Finished difference. Result has 66 places, 80 transitions, 423 flow [2023-08-31 19:58:07,093 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} [2023-08-31 19:58:07,093 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -7 predicate places. [2023-08-31 19:58:07,093 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 80 transitions, 423 flow [2023-08-31 19:58:07,094 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) [2023-08-31 19:58:07,094 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:07,094 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:07,094 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:58:07,094 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)] === [2023-08-31 19:58:07,094 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:07,094 INFO L85 PathProgramCache]: Analyzing trace with hash 764769679, now seen corresponding path program 2 times [2023-08-31 19:58:07,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:07,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234575528] [2023-08-31 19:58:07,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:07,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:07,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:58:07,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:58:07,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:58:07,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234575528] [2023-08-31 19:58:07,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234575528] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:58:07,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:58:07,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-08-31 19:58:07,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747100484] [2023-08-31 19:58:07,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:58:07,211 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-08-31 19:58:07,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:58:07,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-08-31 19:58:07,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-08-31 19:58:07,234 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 556 [2023-08-31 19:58:07,235 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) [2023-08-31 19:58:07,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:58:07,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 556 [2023-08-31 19:58:07,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:58:07,629 INFO L130 PetriNetUnfolder]: 3331/5727 cut-off events. [2023-08-31 19:58:07,629 INFO L131 PetriNetUnfolder]: For 7856/8115 co-relation queries the response was YES. [2023-08-31 19:58:07,637 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. [2023-08-31 19:58:07,651 INFO L137 encePairwiseOnDemand]: 547/556 looper letters, 89 selfloop transitions, 31 changer transitions 5/144 dead transitions. [2023-08-31 19:58:07,651 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 144 transitions, 990 flow [2023-08-31 19:58:07,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-08-31 19:58:07,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-08-31 19:58:07,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1058 transitions. [2023-08-31 19:58:07,654 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.47571942446043164 [2023-08-31 19:58:07,654 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1058 transitions. [2023-08-31 19:58:07,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1058 transitions. [2023-08-31 19:58:07,655 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:58:07,655 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1058 transitions. [2023-08-31 19:58:07,656 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) [2023-08-31 19:58:07,659 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) [2023-08-31 19:58:07,659 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) [2023-08-31 19:58:07,659 INFO L175 Difference]: Start difference. First operand has 66 places, 80 transitions, 423 flow. Second operand 4 states and 1058 transitions. [2023-08-31 19:58:07,659 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 144 transitions, 990 flow [2023-08-31 19:58:07,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 144 transitions, 990 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:58:07,667 INFO L231 Difference]: Finished difference. Result has 72 places, 102 transitions, 738 flow [2023-08-31 19:58:07,667 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} [2023-08-31 19:58:07,668 INFO L281 CegarLoopForPetriNet]: 73 programPoint places, -1 predicate places. [2023-08-31 19:58:07,668 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 102 transitions, 738 flow [2023-08-31 19:58:07,668 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) [2023-08-31 19:58:07,669 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:58:07,669 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:07,669 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:58:07,669 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)] === [2023-08-31 19:58:07,669 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:58:07,669 INFO L85 PathProgramCache]: Analyzing trace with hash 1036710662, now seen corresponding path program 1 times [2023-08-31 19:58:07,669 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:58:07,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679762781] [2023-08-31 19:58:07,670 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:58:07,670 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:58:07,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:58:07,689 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 19:58:07,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 19:58:07,719 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 19:58:07,720 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 19:58:07,720 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (30 of 31 remaining) [2023-08-31 19:58:07,721 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (29 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (28 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (27 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (26 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (25 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (24 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (23 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (22 of 31 remaining) [2023-08-31 19:58:07,722 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (21 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (20 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr3ASSERT_VIOLATIONDATA_RACE (19 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (18 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (17 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (16 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (15 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (14 of 31 remaining) [2023-08-31 19:58:07,723 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (13 of 31 remaining) [2023-08-31 19:58:07,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (12 of 31 remaining) [2023-08-31 19:58:07,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (11 of 31 remaining) [2023-08-31 19:58:07,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (10 of 31 remaining) [2023-08-31 19:58:07,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr0ASSERT_VIOLATIONDATA_RACE (9 of 31 remaining) [2023-08-31 19:58:07,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr4ASSERT_VIOLATIONDATA_RACE (8 of 31 remaining) [2023-08-31 19:58:07,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr1ASSERT_VIOLATIONDATA_RACE (7 of 31 remaining) [2023-08-31 19:58:07,724 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr2ASSERT_VIOLATIONDATA_RACE (6 of 31 remaining) [2023-08-31 19:58:07,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr5ASSERT_VIOLATIONDATA_RACE (5 of 31 remaining) [2023-08-31 19:58:07,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location monitor_threadErr3ASSERT_VIOLATIONDATA_RACE (4 of 31 remaining) [2023-08-31 19:58:07,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr0ASSERT_VIOLATIONDATA_RACE (3 of 31 remaining) [2023-08-31 19:58:07,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr1ASSERT_VIOLATIONDATA_RACE (2 of 31 remaining) [2023-08-31 19:58:07,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr2ASSERT_VIOLATIONDATA_RACE (1 of 31 remaining) [2023-08-31 19:58:07,725 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location counter_threadErr4ASSERT_VIOLATIONDATA_RACE (0 of 31 remaining) [2023-08-31 19:58:07,725 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 19:58:07,726 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:58:07,729 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:58:07,729 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:58:07,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:58:07 BasicIcfg [2023-08-31 19:58:07,754 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:58:07,754 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:58:07,754 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:58:07,754 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:58:07,755 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:57:56" (3/4) ... [2023-08-31 19:58:07,756 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 19:58:07,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:58:07,757 INFO L158 Benchmark]: Toolchain (without parser) took 12718.71ms. Allocated memory was 75.5MB in the beginning and 297.8MB in the end (delta: 222.3MB). Free memory was 49.4MB in the beginning and 147.2MB in the end (delta: -97.8MB). Peak memory consumption was 127.7MB. Max. memory is 16.1GB. [2023-08-31 19:58:07,757 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 34.1MB in the beginning and 34.1MB in the end (delta: 30.5kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:07,757 INFO L158 Benchmark]: CACSL2BoogieTranslator took 637.42ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 49.2MB in the beginning and 60.5MB in the end (delta: -11.2MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. [2023-08-31 19:58:07,757 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.06ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 57.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:07,757 INFO L158 Benchmark]: Boogie Preprocessor took 62.73ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 53.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 19:58:07,758 INFO L158 Benchmark]: RCFGBuilder took 525.59ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 49.6MB in the end (delta: 3.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2023-08-31 19:58:07,758 INFO L158 Benchmark]: TraceAbstraction took 11428.83ms. Allocated memory was 92.3MB in the beginning and 297.8MB in the end (delta: 205.5MB). Free memory was 48.8MB in the beginning and 147.2MB in the end (delta: -98.4MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. [2023-08-31 19:58:07,758 INFO L158 Benchmark]: Witness Printer took 2.19ms. Allocated memory is still 297.8MB. Free memory is still 147.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:58:07,759 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 56.6MB. Free memory was 34.1MB in the beginning and 34.1MB in the end (delta: 30.5kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 637.42ms. Allocated memory was 75.5MB in the beginning and 92.3MB in the end (delta: 16.8MB). Free memory was 49.2MB in the beginning and 60.5MB in the end (delta: -11.2MB). Peak memory consumption was 27.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.06ms. Allocated memory is still 92.3MB. Free memory was 60.5MB in the beginning and 57.2MB in the end (delta: 3.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.73ms. Allocated memory is still 92.3MB. Free memory was 56.8MB in the beginning and 53.3MB in the end (delta: 3.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 525.59ms. Allocated memory is still 92.3MB. Free memory was 53.3MB in the beginning and 49.6MB in the end (delta: 3.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * TraceAbstraction took 11428.83ms. Allocated memory was 92.3MB in the beginning and 297.8MB in the end (delta: 205.5MB). Free memory was 48.8MB in the beginning and 147.2MB in the end (delta: -98.4MB). Peak memory consumption was 108.2MB. Max. memory is 16.1GB. * Witness Printer took 2.19ms. Allocated memory is still 297.8MB. Free memory is still 147.2MB. 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: 7.6s, 254 PlacesBefore, 73 PlacesAfterwards, 276 TransitionsBefore, 88 TransitionsAfterwards, 21896 CoEnabledTransitionPairs, 8 FixpointIterations, 68 TrivialSequentialCompositions, 152 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 39 ConcurrentYvCompositions, 7 ChoiceCompositions, 268 TotalNumberOfCompositions, 54617 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 27544, independent: 26874, independent conditional: 0, independent unconditional: 26874, dependent: 670, dependent conditional: 0, dependent unconditional: 670, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 12953, independent: 12837, independent conditional: 0, independent unconditional: 12837, dependent: 116, dependent conditional: 0, dependent unconditional: 116, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 27544, independent: 14037, independent conditional: 0, independent unconditional: 14037, dependent: 554, dependent conditional: 0, dependent unconditional: 554, unknown: 12953, unknown conditional: 0, unknown unconditional: 12953] , Statistics on independence cache: Total cache size (in pairs): 860, Positive cache size: 809, Positive conditional cache size: 0, Positive unconditional cache size: 809, Negative cache size: 51, Negative conditional cache size: 0, Negative unconditional cache size: 51, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 1808]: Data race detected Data race detected The following path leads to a data race: [L1797] 0 pthread_mutex_t mutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1798] 0 long counter; [L1799] 0 time_t end_time; [L1836] 0 int status; [L1837] 0 pthread_t counter_thread_id; [L1838] 0 pthread_t monitor_thread_id; [L1839] 0 end_time = time (((void *)0)) + 60 [L1840] EXPR, FCALL, FORK 0 pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, argc=1153, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0))=-2] [L1801] 1 int status; [L1802] 1 int spin; VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}] [L1840] 0 status = pthread_create (&counter_thread_id, ((void *)0), counter_thread, ((void *)0)) [L1841] COND FALSE 0 !(status != 0) [L1803] 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1843] FCALL, FORK 0 pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0)) VAL [\old(argc)=1153, arg={0:0}, arg={0:0}, arg={0:0}, argc=1153, argv={1150:1151}, argv={1150:1151}, counter=0, counter_thread_id={27:0}, end_time=1, monitor_thread_id={26:0}, mutex={25:0}, pthread_create (&monitor_thread_id, ((void *)0), monitor_thread, ((void *)0))=-1, status=0, time (((void *)0))=0] [L1803] 1 time (((void *)0)) < end_time [L1803] COND TRUE 1 time (((void *)0)) < end_time VAL [arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, mutex={25:0}, time (((void *)0))=0] [L1817] 2 int status; [L1818] 2 int misses = 0; VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, time (((void *)0))=0] [L1819] 2 time (((void *)0)) < end_time [L1819] COND TRUE 2 time (((void *)0)) < end_time [L1804] 1 status = pthread_mutex_lock (&mutex) [L1805] COND FALSE 1 !(status != 0) [L1807] 1 spin = 0 VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter=0, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1807] COND TRUE 1 spin < 10000000 [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, spin=0, status=0] [L1821] 2 status = pthread_mutex_trylock (&mutex) VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, pthread_mutex_trylock (&mutex)=16, spin=0, status=0, status=16] [L1822] COND FALSE 2 !(status != 16) [L1830] 2 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, spin=0, status=0, status=16] [L1808] 1 counter++ VAL [arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, counter++=0, counter++=1152, counter=1, end_time=1, misses=0, mutex={25:0}, spin=0, status=0, status=16] Now there is a data race on ~counter~0 between C: counter++ [1830] and C: counter++ [1808] - UnprovableResult [Line: 1819]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1824]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1825]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1830]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1828]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1803]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1806]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1808]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1811]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1839]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1842]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1845]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1846]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1848]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1849]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1851]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 1840]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1843]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 379 locations, 31 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.3s, OverallIterations: 11, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 2.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 534 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 317 mSDsluCounter, 40 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 18 mSDsCounter, 104 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1088 IncrementalHoareTripleChecker+Invalid, 1192 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 104 mSolverCounterUnsat, 22 mSDtfsCounter, 1088 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=738occurred in iteration=10, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s 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! [2023-08-31 19:58:07,794 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE