./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/pthread-atomic/peterson-b.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/pthread-atomic/peterson-b.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 a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-28 17:52:19,399 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-28 17:52:19,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-28 17:52:19,431 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-28 17:52:19,434 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-28 17:52:19,438 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-28 17:52:19,440 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-28 17:52:19,443 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-28 17:52:19,445 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-28 17:52:19,451 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-28 17:52:19,452 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-28 17:52:19,454 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-28 17:52:19,455 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-28 17:52:19,457 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-28 17:52:19,460 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-28 17:52:19,464 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-28 17:52:19,467 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-28 17:52:19,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-28 17:52:19,470 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-28 17:52:19,472 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-28 17:52:19,476 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-28 17:52:19,478 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-28 17:52:19,478 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-28 17:52:19,479 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-28 17:52:19,484 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-28 17:52:19,484 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-28 17:52:19,484 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-28 17:52:19,486 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-28 17:52:19,487 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-28 17:52:19,487 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-28 17:52:19,488 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-28 17:52:19,489 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-28 17:52:19,491 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-28 17:52:19,492 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-28 17:52:19,493 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-28 17:52:19,493 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-28 17:52:19,493 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-28 17:52:19,494 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-28 17:52:19,494 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-28 17:52:19,494 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-28 17:52:19,495 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-28 17:52:19,497 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-28 17:52:19,544 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-28 17:52:19,545 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-28 17:52:19,546 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-28 17:52:19,546 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-28 17:52:19,547 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-28 17:52:19,547 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-28 17:52:19,548 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-28 17:52:19,548 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-28 17:52:19,548 INFO L138 SettingsManager]: * Use SBE=true [2023-08-28 17:52:19,548 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-28 17:52:19,549 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-28 17:52:19,549 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-28 17:52:19,549 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-28 17:52:19,550 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-28 17:52:19,550 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-28 17:52:19,550 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-28 17:52:19,550 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-28 17:52:19,550 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-28 17:52:19,550 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-28 17:52:19,551 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-28 17:52:19,551 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-28 17:52:19,551 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-28 17:52:19,551 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-28 17:52:19,551 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-28 17:52:19,551 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-28 17:52:19,552 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-28 17:52:19,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:19,552 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-28 17:52:19,552 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-28 17:52:19,552 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-28 17:52:19,553 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-28 17:52:19,553 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-28 17:52:19,553 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-28 17:52:19,553 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-28 17:52:19,553 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-28 17:52:19,554 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-28 17:52:19,554 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-28 17:52:19,554 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-28 17:52:19,861 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-28 17:52:19,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-28 17:52:19,882 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-28 17:52:19,883 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-28 17:52:19,883 INFO L275 PluginConnector]: CDTParser initialized [2023-08-28 17:52:19,884 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson-b.i [2023-08-28 17:52:21,066 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-28 17:52:21,355 INFO L351 CDTParser]: Found 1 translation units. [2023-08-28 17:52:21,356 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i [2023-08-28 17:52:21,371 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed4fdc5e/da8ebc01fafd492cb4772173939115f3/FLAG1fbdeffb1 [2023-08-28 17:52:21,384 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ed4fdc5e/da8ebc01fafd492cb4772173939115f3 [2023-08-28 17:52:21,388 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-28 17:52:21,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-28 17:52:21,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:21,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-28 17:52:21,394 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-28 17:52:21,395 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,397 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@716d987c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21, skipping insertion in model container [2023-08-28 17:52:21,397 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,402 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-28 17:52:21,445 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-28 17:52:21,779 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30010,30023] [2023-08-28 17:52:21,783 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30174,30187] [2023-08-28 17:52:21,790 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:21,799 INFO L203 MainTranslator]: Completed pre-run [2023-08-28 17:52:21,838 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30010,30023] [2023-08-28 17:52:21,845 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i[30174,30187] [2023-08-28 17:52:21,856 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-28 17:52:21,891 INFO L208 MainTranslator]: Completed translation [2023-08-28 17:52:21,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21 WrapperNode [2023-08-28 17:52:21,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-28 17:52:21,893 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:21,893 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-28 17:52:21,893 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-28 17:52:21,899 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,954 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-08-28 17:52:21,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-28 17:52:21,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-28 17:52:21,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-28 17:52:21,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-28 17:52:21,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,980 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,984 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:21,990 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:22,000 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:22,002 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:22,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:22,013 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-28 17:52:22,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-28 17:52:22,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-28 17:52:22,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-28 17:52:22,014 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (1/1) ... [2023-08-28 17:52:22,027 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-28 17:52:22,037 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-28 17:52:22,054 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) [2023-08-28 17:52:22,083 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 [2023-08-28 17:52:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-28 17:52:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-28 17:52:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-28 17:52:22,095 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-28 17:52:22,095 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-28 17:52:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-28 17:52:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-28 17:52:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-28 17:52:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-28 17:52:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-28 17:52:22,096 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-28 17:52:22,096 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-28 17:52:22,097 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-28 17:52:22,287 INFO L236 CfgBuilder]: Building ICFG [2023-08-28 17:52:22,292 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-28 17:52:22,500 INFO L277 CfgBuilder]: Performing block encoding [2023-08-28 17:52:22,507 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-28 17:52:22,520 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-28 17:52:22,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:22 BoogieIcfgContainer [2023-08-28 17:52:22,523 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-28 17:52:22,525 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-28 17:52:22,525 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-28 17:52:22,527 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-28 17:52:22,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.08 05:52:21" (1/3) ... [2023-08-28 17:52:22,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623db71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:22, skipping insertion in model container [2023-08-28 17:52:22,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.08 05:52:21" (2/3) ... [2023-08-28 17:52:22,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3623db71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.08 05:52:22, skipping insertion in model container [2023-08-28 17:52:22,529 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:22" (3/3) ... [2023-08-28 17:52:22,530 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson-b.i [2023-08-28 17:52:22,537 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-28 17:52:22,546 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-28 17:52:22,546 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-28 17:52:22,546 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-28 17:52:22,655 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-28 17:52:22,694 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 152 transitions, 320 flow [2023-08-28 17:52:22,801 INFO L130 PetriNetUnfolder]: 8/150 cut-off events. [2023-08-28 17:52:22,802 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-28 17:52:22,817 INFO L83 FinitePrefix]: Finished finitePrefix Result has 159 conditions, 150 events. 8/150 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 0 based on Foata normal form. 0/126 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-08-28 17:52:22,818 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 152 transitions, 320 flow [2023-08-28 17:52:22,828 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 141 transitions, 291 flow [2023-08-28 17:52:22,831 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-28 17:52:22,844 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 141 transitions, 291 flow [2023-08-28 17:52:22,851 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 141 transitions, 291 flow [2023-08-28 17:52:22,851 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 141 transitions, 291 flow [2023-08-28 17:52:22,917 INFO L130 PetriNetUnfolder]: 8/141 cut-off events. [2023-08-28 17:52:22,919 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-28 17:52:22,924 INFO L83 FinitePrefix]: Finished finitePrefix Result has 149 conditions, 141 events. 8/141 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 284 event pairs, 0 based on Foata normal form. 0/117 useless extension candidates. Maximal degree in co-relation 117. Up to 2 conditions per place. [2023-08-28 17:52:22,929 INFO L119 LiptonReduction]: Number of co-enabled transitions 8036 [2023-08-28 17:52:24,902 INFO L134 LiptonReduction]: Checked pairs total: 29409 [2023-08-28 17:52:24,903 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-08-28 17:52:24,925 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-28 17:52:24,933 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;@1a51b1ef, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-28 17:52:24,933 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-08-28 17:52:24,937 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-28 17:52:24,938 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-28 17:52:24,938 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:24,957 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-28 17:52:24,957 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:24,961 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:24,985 INFO L85 PathProgramCache]: Analyzing trace with hash 523245175, now seen corresponding path program 1 times [2023-08-28 17:52:24,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:24,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884568372] [2023-08-28 17:52:24,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:24,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:25,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:25,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:25,178 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:25,178 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884568372] [2023-08-28 17:52:25,179 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884568372] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:25,179 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:25,179 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:25,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013622072] [2023-08-28 17:52:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:25,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:25,192 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:25,208 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:25,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:25,232 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 232 [2023-08-28 17:52:25,237 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 75 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2023-08-28 17:52:25,237 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:25,237 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 232 [2023-08-28 17:52:25,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:25,480 INFO L130 PetriNetUnfolder]: 638/1551 cut-off events. [2023-08-28 17:52:25,481 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-28 17:52:25,483 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2637 conditions, 1551 events. 638/1551 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 9758 event pairs, 499 based on Foata normal form. 88/1441 useless extension candidates. Maximal degree in co-relation 2510. Up to 975 conditions per place. [2023-08-28 17:52:25,490 INFO L137 encePairwiseOnDemand]: 222/232 looper letters, 48 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2023-08-28 17:52:25,491 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 84 transitions, 282 flow [2023-08-28 17:52:25,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:25,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:25,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-08-28 17:52:25,503 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6695402298850575 [2023-08-28 17:52:25,504 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-08-28 17:52:25,504 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-08-28 17:52:25,506 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:25,508 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-08-28 17:52:25,512 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 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) [2023-08-28 17:52:25,516 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:25,517 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:25,518 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 159 flow. Second operand 3 states and 466 transitions. [2023-08-28 17:52:25,519 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 84 transitions, 282 flow [2023-08-28 17:52:25,522 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 276 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-28 17:52:25,524 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 157 flow [2023-08-28 17:52:25,526 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=157, PETRI_PLACES=70, PETRI_TRANSITIONS=69} [2023-08-28 17:52:25,529 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2023-08-28 17:52:25,529 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 157 flow [2023-08-28 17:52:25,529 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2023-08-28 17:52:25,530 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:25,530 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:25,530 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-28 17:52:25,530 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:25,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:25,531 INFO L85 PathProgramCache]: Analyzing trace with hash 389125514, now seen corresponding path program 1 times [2023-08-28 17:52:25,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:25,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143178373] [2023-08-28 17:52:25,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:25,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:25,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:25,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:25,575 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:25,575 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143178373] [2023-08-28 17:52:25,576 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [143178373] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:25,576 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:25,576 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:25,576 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158228384] [2023-08-28 17:52:25,576 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:25,577 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:25,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:25,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:25,578 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:25,589 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 232 [2023-08-28 17:52:25,589 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 69 transitions, 157 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-08-28 17:52:25,590 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:25,590 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 232 [2023-08-28 17:52:25,590 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:25,785 INFO L130 PetriNetUnfolder]: 722/1733 cut-off events. [2023-08-28 17:52:25,785 INFO L131 PetriNetUnfolder]: For 130/146 co-relation queries the response was YES. [2023-08-28 17:52:25,788 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3059 conditions, 1733 events. 722/1733 cut-off events. For 130/146 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 10948 event pairs, 548 based on Foata normal form. 0/1513 useless extension candidates. Maximal degree in co-relation 2388. Up to 1094 conditions per place. [2023-08-28 17:52:25,794 INFO L137 encePairwiseOnDemand]: 228/232 looper letters, 51 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-28 17:52:25,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 87 transitions, 308 flow [2023-08-28 17:52:25,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:25,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:25,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2023-08-28 17:52:25,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6594827586206896 [2023-08-28 17:52:25,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2023-08-28 17:52:25,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2023-08-28 17:52:25,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:25,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2023-08-28 17:52:25,801 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 153.0) internal successors, (459), 3 states have internal predecessors, (459), 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) [2023-08-28 17:52:25,803 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:25,804 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:25,804 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 157 flow. Second operand 3 states and 459 transitions. [2023-08-28 17:52:25,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 87 transitions, 308 flow [2023-08-28 17:52:25,806 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 87 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:25,808 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 173 flow [2023-08-28 17:52:25,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=69, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=72, PETRI_TRANSITIONS=71} [2023-08-28 17:52:25,809 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2023-08-28 17:52:25,809 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 173 flow [2023-08-28 17:52:25,810 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-08-28 17:52:25,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:25,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:25,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-28 17:52:25,811 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:25,811 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:25,811 INFO L85 PathProgramCache]: Analyzing trace with hash 1562907487, now seen corresponding path program 1 times [2023-08-28 17:52:25,812 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:25,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122894952] [2023-08-28 17:52:25,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:25,812 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:25,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:25,869 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:25,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:25,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122894952] [2023-08-28 17:52:25,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122894952] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:25,870 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:25,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:25,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941672058] [2023-08-28 17:52:25,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:25,871 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:25,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:25,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:25,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:25,890 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-28 17:52:25,890 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 72 places, 71 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2023-08-28 17:52:25,890 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:25,891 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-28 17:52:25,891 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:26,070 INFO L130 PetriNetUnfolder]: 761/1822 cut-off events. [2023-08-28 17:52:26,071 INFO L131 PetriNetUnfolder]: For 117/172 co-relation queries the response was YES. [2023-08-28 17:52:26,074 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3304 conditions, 1822 events. 761/1822 cut-off events. For 117/172 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 11695 event pairs, 568 based on Foata normal form. 21/1618 useless extension candidates. Maximal degree in co-relation 2642. Up to 1174 conditions per place. [2023-08-28 17:52:26,081 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 50 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2023-08-28 17:52:26,081 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 88 transitions, 320 flow [2023-08-28 17:52:26,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:26,082 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2023-08-28 17:52:26,083 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6537356321839081 [2023-08-28 17:52:26,083 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2023-08-28 17:52:26,083 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2023-08-28 17:52:26,083 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:26,083 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2023-08-28 17:52:26,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 151.66666666666666) internal successors, (455), 3 states have internal predecessors, (455), 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) [2023-08-28 17:52:26,086 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:26,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:26,087 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 173 flow. Second operand 3 states and 455 transitions. [2023-08-28 17:52:26,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 88 transitions, 320 flow [2023-08-28 17:52:26,089 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 88 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:26,090 INFO L231 Difference]: Finished difference. Result has 74 places, 74 transitions, 196 flow [2023-08-28 17:52:26,091 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=196, PETRI_PLACES=74, PETRI_TRANSITIONS=74} [2023-08-28 17:52:26,092 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2023-08-28 17:52:26,092 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 196 flow [2023-08-28 17:52:26,092 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.66666666666666) internal successors, (410), 3 states have internal predecessors, (410), 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) [2023-08-28 17:52:26,093 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:26,093 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:26,093 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-28 17:52:26,093 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:26,093 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:26,094 INFO L85 PathProgramCache]: Analyzing trace with hash -1284396780, now seen corresponding path program 1 times [2023-08-28 17:52:26,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:26,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [643309632] [2023-08-28 17:52:26,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:26,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:26,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:26,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:26,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:26,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [643309632] [2023-08-28 17:52:26,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [643309632] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:26,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:26,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:26,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778560195] [2023-08-28 17:52:26,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:26,149 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:26,149 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:26,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:26,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:26,158 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 232 [2023-08-28 17:52:26,158 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 74 transitions, 196 flow. Second operand has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2023-08-28 17:52:26,159 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:26,159 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 232 [2023-08-28 17:52:26,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:26,421 INFO L130 PetriNetUnfolder]: 1212/2877 cut-off events. [2023-08-28 17:52:26,421 INFO L131 PetriNetUnfolder]: For 276/340 co-relation queries the response was YES. [2023-08-28 17:52:26,425 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5339 conditions, 2877 events. 1212/2877 cut-off events. For 276/340 co-relation queries the response was YES. Maximal size of possible extension queue 115. Compared 20426 event pairs, 357 based on Foata normal form. 18/2553 useless extension candidates. Maximal degree in co-relation 4642. Up to 1103 conditions per place. [2023-08-28 17:52:26,435 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 65 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2023-08-28 17:52:26,435 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 103 transitions, 407 flow [2023-08-28 17:52:26,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:26,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:26,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-28 17:52:26,437 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6839080459770115 [2023-08-28 17:52:26,440 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-28 17:52:26,440 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-28 17:52:26,441 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:26,441 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-28 17:52:26,442 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2023-08-28 17:52:26,443 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:26,444 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:26,444 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 196 flow. Second operand 3 states and 476 transitions. [2023-08-28 17:52:26,445 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 103 transitions, 407 flow [2023-08-28 17:52:26,447 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 103 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:26,449 INFO L231 Difference]: Finished difference. Result has 77 places, 79 transitions, 240 flow [2023-08-28 17:52:26,449 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=73, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=240, PETRI_PLACES=77, PETRI_TRANSITIONS=79} [2023-08-28 17:52:26,451 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2023-08-28 17:52:26,451 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 240 flow [2023-08-28 17:52:26,451 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.0) internal successors, (420), 3 states have internal predecessors, (420), 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) [2023-08-28 17:52:26,452 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:26,452 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:26,452 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-28 17:52:26,452 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:26,452 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:26,453 INFO L85 PathProgramCache]: Analyzing trace with hash 326260243, now seen corresponding path program 1 times [2023-08-28 17:52:26,453 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:26,453 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995401381] [2023-08-28 17:52:26,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:26,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:26,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:26,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:26,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:26,500 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995401381] [2023-08-28 17:52:26,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995401381] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:26,500 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:26,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:26,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573939524] [2023-08-28 17:52:26,501 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:26,501 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:26,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:26,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:26,502 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:26,514 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-28 17:52:26,514 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 79 transitions, 240 flow. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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) [2023-08-28 17:52:26,515 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:26,515 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-28 17:52:26,515 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:26,778 INFO L130 PetriNetUnfolder]: 1278/2941 cut-off events. [2023-08-28 17:52:26,778 INFO L131 PetriNetUnfolder]: For 478/557 co-relation queries the response was YES. [2023-08-28 17:52:26,783 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5614 conditions, 2941 events. 1278/2941 cut-off events. For 478/557 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 20724 event pairs, 844 based on Foata normal form. 25/2551 useless extension candidates. Maximal degree in co-relation 4920. Up to 1892 conditions per place. [2023-08-28 17:52:26,795 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 54 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2023-08-28 17:52:26,795 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 97 transitions, 403 flow [2023-08-28 17:52:26,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:26,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:26,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2023-08-28 17:52:26,797 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2023-08-28 17:52:26,797 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2023-08-28 17:52:26,797 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2023-08-28 17:52:26,798 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:26,798 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2023-08-28 17:52:26,799 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 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) [2023-08-28 17:52:26,800 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:26,801 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:26,801 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 240 flow. Second operand 3 states and 456 transitions. [2023-08-28 17:52:26,801 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 97 transitions, 403 flow [2023-08-28 17:52:26,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:26,805 INFO L231 Difference]: Finished difference. Result has 78 places, 82 transitions, 261 flow [2023-08-28 17:52:26,805 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=230, PETRI_DIFFERENCE_MINUEND_PLACES=75, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=74, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=261, PETRI_PLACES=78, PETRI_TRANSITIONS=82} [2023-08-28 17:52:26,805 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 4 predicate places. [2023-08-28 17:52:26,806 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 261 flow [2023-08-28 17:52:26,806 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 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) [2023-08-28 17:52:26,806 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:26,806 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:26,806 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-28 17:52:26,807 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:26,807 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:26,807 INFO L85 PathProgramCache]: Analyzing trace with hash 3616118, now seen corresponding path program 1 times [2023-08-28 17:52:26,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:26,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220333812] [2023-08-28 17:52:26,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:26,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:26,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:26,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:26,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:26,831 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220333812] [2023-08-28 17:52:26,831 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220333812] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:26,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:26,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:26,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706593025] [2023-08-28 17:52:26,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:26,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:26,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:26,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:26,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:26,840 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 232 [2023-08-28 17:52:26,840 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 82 transitions, 261 flow. Second operand has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2023-08-28 17:52:26,840 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:26,841 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 232 [2023-08-28 17:52:26,841 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:27,220 INFO L130 PetriNetUnfolder]: 1895/4290 cut-off events. [2023-08-28 17:52:27,220 INFO L131 PetriNetUnfolder]: For 808/989 co-relation queries the response was YES. [2023-08-28 17:52:27,229 INFO L83 FinitePrefix]: Finished finitePrefix Result has 8481 conditions, 4290 events. 1895/4290 cut-off events. For 808/989 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 32238 event pairs, 518 based on Foata normal form. 73/3874 useless extension candidates. Maximal degree in co-relation 5982. Up to 1584 conditions per place. [2023-08-28 17:52:27,271 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 68 selfloop transitions, 5 changer transitions 0/112 dead transitions. [2023-08-28 17:52:27,271 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 112 transitions, 490 flow [2023-08-28 17:52:27,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:27,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:27,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2023-08-28 17:52:27,273 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6795977011494253 [2023-08-28 17:52:27,273 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 473 transitions. [2023-08-28 17:52:27,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 473 transitions. [2023-08-28 17:52:27,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:27,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 473 transitions. [2023-08-28 17:52:27,275 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 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) [2023-08-28 17:52:27,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:27,277 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:27,277 INFO L175 Difference]: Start difference. First operand has 78 places, 82 transitions, 261 flow. Second operand 3 states and 473 transitions. [2023-08-28 17:52:27,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 112 transitions, 490 flow [2023-08-28 17:52:27,280 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 112 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-28 17:52:27,281 INFO L231 Difference]: Finished difference. Result has 81 places, 87 transitions, 304 flow [2023-08-28 17:52:27,282 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=256, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=304, PETRI_PLACES=81, PETRI_TRANSITIONS=87} [2023-08-28 17:52:27,282 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2023-08-28 17:52:27,282 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 87 transitions, 304 flow [2023-08-28 17:52:27,283 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.33333333333334) internal successors, (421), 3 states have internal predecessors, (421), 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) [2023-08-28 17:52:27,283 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:27,283 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:27,283 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-28 17:52:27,283 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:27,284 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:27,284 INFO L85 PathProgramCache]: Analyzing trace with hash 399601406, now seen corresponding path program 1 times [2023-08-28 17:52:27,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:27,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1431479797] [2023-08-28 17:52:27,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:27,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:27,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-28 17:52:27,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-28 17:52:27,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-28 17:52:27,316 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1431479797] [2023-08-28 17:52:27,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1431479797] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-28 17:52:27,316 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-28 17:52:27,316 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-28 17:52:27,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206337763] [2023-08-28 17:52:27,316 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-28 17:52:27,317 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-28 17:52:27,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-28 17:52:27,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-28 17:52:27,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-28 17:52:27,328 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-28 17:52:27,329 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 87 transitions, 304 flow. Second operand has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-08-28 17:52:27,329 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-28 17:52:27,329 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-28 17:52:27,329 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-28 17:52:28,058 INFO L130 PetriNetUnfolder]: 3911/8658 cut-off events. [2023-08-28 17:52:28,065 INFO L131 PetriNetUnfolder]: For 2585/2852 co-relation queries the response was YES. [2023-08-28 17:52:28,082 INFO L83 FinitePrefix]: Finished finitePrefix Result has 17680 conditions, 8658 events. 3911/8658 cut-off events. For 2585/2852 co-relation queries the response was YES. Maximal size of possible extension queue 361. Compared 73093 event pairs, 1257 based on Foata normal form. 53/7700 useless extension candidates. Maximal degree in co-relation 12490. Up to 3198 conditions per place. [2023-08-28 17:52:28,114 INFO L137 encePairwiseOnDemand]: 224/232 looper letters, 83 selfloop transitions, 8 changer transitions 0/129 dead transitions. [2023-08-28 17:52:28,114 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 129 transitions, 621 flow [2023-08-28 17:52:28,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-28 17:52:28,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-28 17:52:28,116 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-28 17:52:28,116 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6839080459770115 [2023-08-28 17:52:28,116 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-28 17:52:28,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-28 17:52:28,117 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-28 17:52:28,117 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-28 17:52:28,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 158.66666666666666) internal successors, (476), 3 states have internal predecessors, (476), 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) [2023-08-28 17:52:28,119 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:28,119 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 232.0) internal successors, (928), 4 states have internal predecessors, (928), 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) [2023-08-28 17:52:28,120 INFO L175 Difference]: Start difference. First operand has 81 places, 87 transitions, 304 flow. Second operand 3 states and 476 transitions. [2023-08-28 17:52:28,120 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 129 transitions, 621 flow [2023-08-28 17:52:28,124 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 129 transitions, 607 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-28 17:52:28,126 INFO L231 Difference]: Finished difference. Result has 83 places, 95 transitions, 378 flow [2023-08-28 17:52:28,126 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=232, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=79, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=87, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=378, PETRI_PLACES=83, PETRI_TRANSITIONS=95} [2023-08-28 17:52:28,127 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2023-08-28 17:52:28,127 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 95 transitions, 378 flow [2023-08-28 17:52:28,127 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.33333333333334) internal successors, (412), 3 states have internal predecessors, (412), 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) [2023-08-28 17:52:28,128 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-28 17:52:28,128 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:28,128 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-28 17:52:28,128 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-28 17:52:28,128 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-28 17:52:28,129 INFO L85 PathProgramCache]: Analyzing trace with hash 445087783, now seen corresponding path program 1 times [2023-08-28 17:52:28,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-28 17:52:28,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881349142] [2023-08-28 17:52:28,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-28 17:52:28,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-28 17:52:28,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:52:28,143 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-28 17:52:28,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-28 17:52:28,167 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-28 17:52:28,167 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-28 17:52:28,168 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (31 of 32 remaining) [2023-08-28 17:52:28,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2023-08-28 17:52:28,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2023-08-28 17:52:28,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2023-08-28 17:52:28,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2023-08-28 17:52:28,170 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2023-08-28 17:52:28,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2023-08-28 17:52:28,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2023-08-28 17:52:28,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2023-08-28 17:52:28,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2023-08-28 17:52:28,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2023-08-28 17:52:28,171 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2023-08-28 17:52:28,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2023-08-28 17:52:28,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2023-08-28 17:52:28,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2023-08-28 17:52:28,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2023-08-28 17:52:28,172 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2023-08-28 17:52:28,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 32 remaining) [2023-08-28 17:52:28,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 32 remaining) [2023-08-28 17:52:28,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2023-08-28 17:52:28,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2023-08-28 17:52:28,173 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2023-08-28 17:52:28,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2023-08-28 17:52:28,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2023-08-28 17:52:28,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2023-08-28 17:52:28,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2023-08-28 17:52:28,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2023-08-28 17:52:28,174 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2023-08-28 17:52:28,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2023-08-28 17:52:28,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2023-08-28 17:52:28,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2023-08-28 17:52:28,175 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2023-08-28 17:52:28,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-28 17:52:28,176 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-28 17:52:28,181 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-28 17:52:28,181 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-28 17:52:28,205 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.08 05:52:28 BasicIcfg [2023-08-28 17:52:28,205 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-28 17:52:28,205 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-28 17:52:28,205 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-28 17:52:28,206 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-28 17:52:28,206 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.08 05:52:22" (3/4) ... [2023-08-28 17:52:28,208 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-28 17:52:28,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-28 17:52:28,209 INFO L158 Benchmark]: Toolchain (without parser) took 6820.05ms. Allocated memory was 69.2MB in the beginning and 450.9MB in the end (delta: 381.7MB). Free memory was 39.3MB in the beginning and 293.9MB in the end (delta: -254.7MB). Peak memory consumption was 127.4MB. Max. memory is 16.1GB. [2023-08-28 17:52:28,210 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:28,210 INFO L158 Benchmark]: CACSL2BoogieTranslator took 500.53ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 34.9MB in the end (delta: 4.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. [2023-08-28 17:52:28,210 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.70ms. Allocated memory is still 69.2MB. Free memory was 34.9MB in the beginning and 32.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-28 17:52:28,210 INFO L158 Benchmark]: Boogie Preprocessor took 57.05ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 31.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:28,211 INFO L158 Benchmark]: RCFGBuilder took 509.70ms. Allocated memory is still 69.2MB. Free memory was 31.1MB in the beginning and 32.8MB in the end (delta: -1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-28 17:52:28,211 INFO L158 Benchmark]: TraceAbstraction took 5680.29ms. Allocated memory was 69.2MB in the beginning and 450.9MB in the end (delta: 381.7MB). Free memory was 32.0MB in the beginning and 293.9MB in the end (delta: -261.9MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. [2023-08-28 17:52:28,211 INFO L158 Benchmark]: Witness Printer took 3.37ms. Allocated memory is still 450.9MB. Free memory is still 293.9MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-28 17:52:28,212 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 56.6MB. Free memory is still 34.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 500.53ms. Allocated memory is still 69.2MB. Free memory was 39.1MB in the beginning and 34.9MB in the end (delta: 4.2MB). Peak memory consumption was 9.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 62.70ms. Allocated memory is still 69.2MB. Free memory was 34.9MB in the beginning and 32.9MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.05ms. Allocated memory is still 69.2MB. Free memory was 32.9MB in the beginning and 31.1MB in the end (delta: 1.7MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 509.70ms. Allocated memory is still 69.2MB. Free memory was 31.1MB in the beginning and 32.8MB in the end (delta: -1.7MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * TraceAbstraction took 5680.29ms. Allocated memory was 69.2MB in the beginning and 450.9MB in the end (delta: 381.7MB). Free memory was 32.0MB in the beginning and 293.9MB in the end (delta: -261.9MB). Peak memory consumption was 119.0MB. Max. memory is 16.1GB. * Witness Printer took 3.37ms. Allocated memory is still 450.9MB. Free memory is still 293.9MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 2.1s, 140 PlacesBefore, 74 PlacesAfterwards, 141 TransitionsBefore, 75 TransitionsAfterwards, 8036 CoEnabledTransitionPairs, 5 FixpointIterations, 17 TrivialSequentialCompositions, 58 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 0 ChoiceCompositions, 80 TotalNumberOfCompositions, 29409 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 12626, independent: 12054, independent conditional: 0, independent unconditional: 12054, dependent: 572, dependent conditional: 0, dependent unconditional: 572, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 4224, independent: 4130, independent conditional: 0, independent unconditional: 4130, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 12626, independent: 7924, independent conditional: 0, independent unconditional: 7924, dependent: 478, dependent conditional: 0, dependent unconditional: 478, unknown: 4224, unknown conditional: 0, unknown unconditional: 4224] , Statistics on independence cache: Total cache size (in pairs): 920, Positive cache size: 862, Positive conditional cache size: 0, Positive unconditional cache size: 862, Negative cache size: 58, Negative conditional cache size: 0, Negative unconditional cache size: 58, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - DataRaceFoundResult [Line: 697]: Data race detected Data race detected The following path leads to a data race: [L684] 0 int flag1 = 0, flag2 = 0; [L685] 0 int turn; [L686] 0 int x; [L706] 0 pthread_t t1, t2; [L707] FCALL, FORK 0 pthread_create(&t1, 0, thr1, 0) VAL [_={0:0}, flag1=0, flag2=0, pthread_create(&t1, 0, thr1, 0)=-1, t1={5:0}, t2={3:0}, turn=0, x=0] [L688] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L708] FCALL, FORK 0 pthread_create(&t2, 0, thr2, 0) VAL [_={0:0}, _={0:0}, _={0:0}, flag1 = 1=50, flag1=1, flag2=0, pthread_create(&t2, 0, thr2, 0)=0, t1={5:0}, t2={3:0}, turn=0, x=0] [L688] 1 flag1 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=0, turn=0, x=0] [L697] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, turn=0, x=0] [L689] 1 turn = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2=1, turn=1, x=0] [L697] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=1, x=0] [L690] 1 flag2==1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=1, x=0] [L697] 2 flag2 = 1 VAL [_={0:0}, _={0:0}, _={0:0}, _={0:0}, flag1=1, flag2 = 1=49, flag2=1, turn=1, x=0] Now there is a data race on ~flag2~0 between C: flag2==1 [690] and C: flag2 = 1 [697] - UnprovableResult [Line: 698]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 701]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 688]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 689]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 691]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 690]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 692]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 693]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 709]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 710]: Unable to prove that there are no data races Unable to prove that there are no data races Reason: Not analyzed. - UnprovableResult [Line: 708]: 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: 707]: 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, 239 locations, 32 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: 5.5s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 171 mSDsluCounter, 32 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 688 IncrementalHoareTripleChecker+Invalid, 701 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 32 mSDtfsCounter, 688 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=378occurred in iteration=7, InterpolantAutomatonStates: 21, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 79 NumberOfCodeBlocks, 79 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 72 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2023-08-28 17:52:28,250 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