./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 BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 11:27:23,082 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 11:27:23,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 11:27:23,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 11:27:23,124 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 11:27:23,126 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 11:27:23,128 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 11:27:23,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 11:27:23,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 11:27:23,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 11:27:23,135 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 11:27:23,137 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 11:27:23,137 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 11:27:23,138 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 11:27:23,139 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 11:27:23,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 11:27:23,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 11:27:23,145 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 11:27:23,146 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 11:27:23,147 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 11:27:23,148 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 11:27:23,149 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 11:27:23,149 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 11:27:23,150 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 11:27:23,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 11:27:23,156 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 11:27:23,156 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 11:27:23,157 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 11:27:23,157 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 11:27:23,158 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 11:27:23,158 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 11:27:23,162 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 11:27:23,163 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 11:27:23,163 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 11:27:23,164 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 11:27:23,164 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 11:27:23,165 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 11:27:23,165 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 11:27:23,165 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 11:27:23,165 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 11:27:23,166 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 11:27:23,167 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 11:27:23,186 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 11:27:23,186 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 11:27:23,187 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 11:27:23,187 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 11:27:23,188 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 11:27:23,188 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 11:27:23,189 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 11:27:23,189 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 11:27:23,189 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 11:27:23,189 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 11:27:23,190 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 11:27:23,190 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 11:27:23,190 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 11:27:23,190 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 11:27:23,190 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 11:27:23,190 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 11:27:23,190 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 11:27:23,191 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 11:27:23,191 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 11:27:23,191 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 11:27:23,191 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 11:27:23,191 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 11:27:23,191 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 11:27:23,191 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 11:27:23,191 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 11:27:23,192 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 11:27:23,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:27:23,192 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 11:27:23,192 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 11:27:23,192 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 11:27:23,192 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 11:27:23,192 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 11:27:23,193 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 11:27:23,193 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 11:27:23,193 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 11:27:23,193 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 11:27:23,193 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 11:27:23,193 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9033b662018b20bd097f60ff2bfef7dede098e2e465ab8a115c418add4298d1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 11:27:23,442 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 11:27:23,453 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 11:27:23,456 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 11:27:23,457 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 11:27:23,457 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 11:27:23,458 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/peterson-b.i [2023-08-31 11:27:24,326 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 11:27:24,526 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 11:27:24,526 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/peterson-b.i [2023-08-31 11:27:24,533 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9838b2523/8dc0d8b277ed4a829ef80fb65d1276d9/FLAGc86cd94a4 [2023-08-31 11:27:24,543 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9838b2523/8dc0d8b277ed4a829ef80fb65d1276d9 [2023-08-31 11:27:24,544 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 11:27:24,545 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 11:27:24,546 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 11:27:24,546 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 11:27:24,548 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 11:27:24,549 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1166754b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24, skipping insertion in model container [2023-08-31 11:27:24,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,553 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 11:27:24,580 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 11:27:24,735 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] [2023-08-31 11:27:24,737 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] [2023-08-31 11:27:24,741 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:27:24,746 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 11:27:24,777 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] [2023-08-31 11:27:24,796 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] [2023-08-31 11:27:24,800 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 11:27:24,829 INFO L208 MainTranslator]: Completed translation [2023-08-31 11:27:24,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24 WrapperNode [2023-08-31 11:27:24,829 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 11:27:24,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 11:27:24,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 11:27:24,830 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 11:27:24,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,845 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,857 INFO L138 Inliner]: procedures = 167, calls = 18, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 53 [2023-08-31 11:27:24,857 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 11:27:24,857 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 11:27:24,857 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 11:27:24,858 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 11:27:24,863 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,863 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,865 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,865 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,870 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,872 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,873 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,874 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,875 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 11:27:24,876 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 11:27:24,876 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 11:27:24,876 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 11:27:24,877 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (1/1) ... [2023-08-31 11:27:24,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 11:27:24,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 11:27:24,907 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 11:27:24,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 11:27:24,942 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 11:27:24,942 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2023-08-31 11:27:24,942 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2023-08-31 11:27:24,942 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2023-08-31 11:27:24,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2023-08-31 11:27:24,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 11:27:24,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 11:27:24,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 11:27:24,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 11:27:24,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 11:27:24,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 11:27:24,943 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 11:27:24,944 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 11:27:25,027 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 11:27:25,029 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 11:27:25,267 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 11:27:25,272 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 11:27:25,272 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-31 11:27:25,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:27:25 BoogieIcfgContainer [2023-08-31 11:27:25,273 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 11:27:25,275 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 11:27:25,275 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 11:27:25,277 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 11:27:25,277 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 11:27:24" (1/3) ... [2023-08-31 11:27:25,277 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc3ae5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:27:25, skipping insertion in model container [2023-08-31 11:27:25,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 11:27:24" (2/3) ... [2023-08-31 11:27:25,278 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1cc3ae5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 11:27:25, skipping insertion in model container [2023-08-31 11:27:25,278 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:27:25" (3/3) ... [2023-08-31 11:27:25,279 INFO L112 eAbstractionObserver]: Analyzing ICFG peterson-b.i [2023-08-31 11:27:25,284 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 11:27:25,290 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 11:27:25,290 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 16 error locations. [2023-08-31 11:27:25,291 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 11:27:25,355 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-08-31 11:27:25,394 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 151 places, 152 transitions, 320 flow [2023-08-31 11:27:25,455 INFO L130 PetriNetUnfolder]: 8/150 cut-off events. [2023-08-31 11:27:25,456 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-08-31 11:27:25,461 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. [2023-08-31 11:27:25,461 INFO L82 GeneralOperation]: Start removeDead. Operand has 151 places, 152 transitions, 320 flow [2023-08-31 11:27:25,468 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 140 places, 141 transitions, 291 flow [2023-08-31 11:27:25,471 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 11:27:25,488 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 140 places, 141 transitions, 291 flow [2023-08-31 11:27:25,493 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 140 places, 141 transitions, 291 flow [2023-08-31 11:27:25,493 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 140 places, 141 transitions, 291 flow [2023-08-31 11:27:25,527 INFO L130 PetriNetUnfolder]: 8/141 cut-off events. [2023-08-31 11:27:25,532 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2023-08-31 11:27:25,535 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. [2023-08-31 11:27:25,538 INFO L119 LiptonReduction]: Number of co-enabled transitions 8036 [2023-08-31 11:27:27,171 INFO L134 LiptonReduction]: Checked pairs total: 29409 [2023-08-31 11:27:27,172 INFO L136 LiptonReduction]: Total number of compositions: 80 [2023-08-31 11:27:27,180 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 11:27:27,185 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;@26e92101, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 11:27:27,185 INFO L358 AbstractCegarLoop]: Starting to check reachability of 32 error locations. [2023-08-31 11:27:27,187 INFO L130 PetriNetUnfolder]: 0/6 cut-off events. [2023-08-31 11:27:27,187 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 11:27:27,187 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:27,188 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-08-31 11:27:27,188 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:27,191 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:27,191 INFO L85 PathProgramCache]: Analyzing trace with hash 523245175, now seen corresponding path program 1 times [2023-08-31 11:27:27,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:27,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392803445] [2023-08-31 11:27:27,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:27,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:27,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:27,361 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:27,361 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:27,362 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392803445] [2023-08-31 11:27:27,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392803445] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:27,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:27,362 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:27,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572154286] [2023-08-31 11:27:27,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:27,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:27,373 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:27,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:27,391 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:27,410 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 232 [2023-08-31 11:27:27,413 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) [2023-08-31 11:27:27,414 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:27,414 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 232 [2023-08-31 11:27:27,414 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:27,610 INFO L130 PetriNetUnfolder]: 638/1551 cut-off events. [2023-08-31 11:27:27,611 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2023-08-31 11:27:27,613 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. [2023-08-31 11:27:27,619 INFO L137 encePairwiseOnDemand]: 222/232 looper letters, 48 selfloop transitions, 3 changer transitions 0/84 dead transitions. [2023-08-31 11:27:27,619 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 84 transitions, 282 flow [2023-08-31 11:27:27,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:27,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:27,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 466 transitions. [2023-08-31 11:27:27,632 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6695402298850575 [2023-08-31 11:27:27,633 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 466 transitions. [2023-08-31 11:27:27,633 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 466 transitions. [2023-08-31 11:27:27,636 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:27,637 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 466 transitions. [2023-08-31 11:27:27,640 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) [2023-08-31 11:27:27,644 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) [2023-08-31 11:27:27,644 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) [2023-08-31 11:27:27,645 INFO L175 Difference]: Start difference. First operand has 74 places, 75 transitions, 159 flow. Second operand 3 states and 466 transitions. [2023-08-31 11:27:27,646 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 84 transitions, 282 flow [2023-08-31 11:27:27,648 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 69 places, 84 transitions, 276 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-08-31 11:27:27,650 INFO L231 Difference]: Finished difference. Result has 70 places, 69 transitions, 157 flow [2023-08-31 11:27:27,651 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} [2023-08-31 11:27:27,653 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -4 predicate places. [2023-08-31 11:27:27,654 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 69 transitions, 157 flow [2023-08-31 11:27:27,654 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) [2023-08-31 11:27:27,655 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:27,655 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:27,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 11:27:27,657 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:27,663 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash 389125514, now seen corresponding path program 1 times [2023-08-31 11:27:27,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:27,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [504462436] [2023-08-31 11:27:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:27,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:27,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:27,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:27,730 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:27,731 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [504462436] [2023-08-31 11:27:27,731 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [504462436] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:27,731 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:27,731 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:27,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750694770] [2023-08-31 11:27:27,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:27,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:27,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:27,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:27,734 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:27,745 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 135 out of 232 [2023-08-31 11:27:27,747 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) [2023-08-31 11:27:27,747 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:27,747 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 135 of 232 [2023-08-31 11:27:27,747 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:27,883 INFO L130 PetriNetUnfolder]: 722/1733 cut-off events. [2023-08-31 11:27:27,883 INFO L131 PetriNetUnfolder]: For 130/146 co-relation queries the response was YES. [2023-08-31 11:27:27,885 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. [2023-08-31 11:27:27,889 INFO L137 encePairwiseOnDemand]: 228/232 looper letters, 51 selfloop transitions, 3 changer transitions 0/87 dead transitions. [2023-08-31 11:27:27,889 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 87 transitions, 308 flow [2023-08-31 11:27:27,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:27,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:27,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 459 transitions. [2023-08-31 11:27:27,891 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6594827586206896 [2023-08-31 11:27:27,891 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 459 transitions. [2023-08-31 11:27:27,891 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 459 transitions. [2023-08-31 11:27:27,891 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:27,891 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 459 transitions. [2023-08-31 11:27:27,892 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) [2023-08-31 11:27:27,894 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) [2023-08-31 11:27:27,894 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) [2023-08-31 11:27:27,894 INFO L175 Difference]: Start difference. First operand has 70 places, 69 transitions, 157 flow. Second operand 3 states and 459 transitions. [2023-08-31 11:27:27,894 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 87 transitions, 308 flow [2023-08-31 11:27:27,896 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 87 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 11:27:27,897 INFO L231 Difference]: Finished difference. Result has 72 places, 71 transitions, 173 flow [2023-08-31 11:27:27,898 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} [2023-08-31 11:27:27,898 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, -2 predicate places. [2023-08-31 11:27:27,898 INFO L495 AbstractCegarLoop]: Abstraction has has 72 places, 71 transitions, 173 flow [2023-08-31 11:27:27,899 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) [2023-08-31 11:27:27,899 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:27,899 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:27,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 11:27:27,899 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:27,901 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:27,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1562907487, now seen corresponding path program 1 times [2023-08-31 11:27:27,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:27,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [96256436] [2023-08-31 11:27:27,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:27,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:27,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:27,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:27,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:27,944 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [96256436] [2023-08-31 11:27:27,944 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [96256436] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:27,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:27,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:27,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277472874] [2023-08-31 11:27:27,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:27,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:27,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:27,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:27,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:27,961 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-31 11:27:27,962 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) [2023-08-31 11:27:27,962 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:27,962 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-31 11:27:27,962 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:28,095 INFO L130 PetriNetUnfolder]: 761/1822 cut-off events. [2023-08-31 11:27:28,095 INFO L131 PetriNetUnfolder]: For 117/172 co-relation queries the response was YES. [2023-08-31 11:27:28,098 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. [2023-08-31 11:27:28,103 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 50 selfloop transitions, 4 changer transitions 0/88 dead transitions. [2023-08-31 11:27:28,103 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 74 places, 88 transitions, 320 flow [2023-08-31 11:27:28,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:28,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:28,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 455 transitions. [2023-08-31 11:27:28,105 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6537356321839081 [2023-08-31 11:27:28,105 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 455 transitions. [2023-08-31 11:27:28,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 455 transitions. [2023-08-31 11:27:28,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:28,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 455 transitions. [2023-08-31 11:27:28,106 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) [2023-08-31 11:27:28,107 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) [2023-08-31 11:27:28,108 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) [2023-08-31 11:27:28,108 INFO L175 Difference]: Start difference. First operand has 72 places, 71 transitions, 173 flow. Second operand 3 states and 455 transitions. [2023-08-31 11:27:28,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 74 places, 88 transitions, 320 flow [2023-08-31 11:27:28,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 73 places, 88 transitions, 316 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 11:27:28,111 INFO L231 Difference]: Finished difference. Result has 74 places, 74 transitions, 196 flow [2023-08-31 11:27:28,111 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} [2023-08-31 11:27:28,112 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 0 predicate places. [2023-08-31 11:27:28,112 INFO L495 AbstractCegarLoop]: Abstraction has has 74 places, 74 transitions, 196 flow [2023-08-31 11:27:28,114 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) [2023-08-31 11:27:28,114 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:28,114 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:28,114 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 11:27:28,114 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:28,114 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:28,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1284396780, now seen corresponding path program 1 times [2023-08-31 11:27:28,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:28,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788908581] [2023-08-31 11:27:28,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:28,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:28,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:28,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:28,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:28,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788908581] [2023-08-31 11:27:28,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788908581] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:28,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:28,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:28,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1356396742] [2023-08-31 11:27:28,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:28,154 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:28,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:28,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:28,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:28,160 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 232 [2023-08-31 11:27:28,161 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) [2023-08-31 11:27:28,161 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:28,161 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 232 [2023-08-31 11:27:28,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:28,339 INFO L130 PetriNetUnfolder]: 1212/2877 cut-off events. [2023-08-31 11:27:28,339 INFO L131 PetriNetUnfolder]: For 276/340 co-relation queries the response was YES. [2023-08-31 11:27:28,342 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. [2023-08-31 11:27:28,350 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 65 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2023-08-31 11:27:28,350 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 103 transitions, 407 flow [2023-08-31 11:27:28,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:28,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:28,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-31 11:27:28,351 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6839080459770115 [2023-08-31 11:27:28,351 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-31 11:27:28,352 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-31 11:27:28,352 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:28,352 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-31 11:27:28,353 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) [2023-08-31 11:27:28,354 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) [2023-08-31 11:27:28,354 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) [2023-08-31 11:27:28,354 INFO L175 Difference]: Start difference. First operand has 74 places, 74 transitions, 196 flow. Second operand 3 states and 476 transitions. [2023-08-31 11:27:28,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 103 transitions, 407 flow [2023-08-31 11:27:28,356 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 103 transitions, 403 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 11:27:28,357 INFO L231 Difference]: Finished difference. Result has 77 places, 79 transitions, 240 flow [2023-08-31 11:27:28,357 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} [2023-08-31 11:27:28,357 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 3 predicate places. [2023-08-31 11:27:28,357 INFO L495 AbstractCegarLoop]: Abstraction has has 77 places, 79 transitions, 240 flow [2023-08-31 11:27:28,358 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) [2023-08-31 11:27:28,358 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:28,358 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:28,358 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 11:27:28,358 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thr2Err1ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:28,359 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:28,359 INFO L85 PathProgramCache]: Analyzing trace with hash 326260243, now seen corresponding path program 1 times [2023-08-31 11:27:28,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:28,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184069204] [2023-08-31 11:27:28,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:28,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:28,374 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:28,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:28,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184069204] [2023-08-31 11:27:28,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [184069204] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:28,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:28,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:28,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471594277] [2023-08-31 11:27:28,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:28,376 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:28,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:28,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:28,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:28,385 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-31 11:27:28,386 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) [2023-08-31 11:27:28,386 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:28,386 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-31 11:27:28,386 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:28,555 INFO L130 PetriNetUnfolder]: 1278/2941 cut-off events. [2023-08-31 11:27:28,555 INFO L131 PetriNetUnfolder]: For 478/557 co-relation queries the response was YES. [2023-08-31 11:27:28,558 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. [2023-08-31 11:27:28,566 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 54 selfloop transitions, 5 changer transitions 0/97 dead transitions. [2023-08-31 11:27:28,566 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 79 places, 97 transitions, 403 flow [2023-08-31 11:27:28,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:28,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:28,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 456 transitions. [2023-08-31 11:27:28,567 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6551724137931034 [2023-08-31 11:27:28,567 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 456 transitions. [2023-08-31 11:27:28,567 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 456 transitions. [2023-08-31 11:27:28,568 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:28,568 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 456 transitions. [2023-08-31 11:27:28,568 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) [2023-08-31 11:27:28,569 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) [2023-08-31 11:27:28,570 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) [2023-08-31 11:27:28,570 INFO L175 Difference]: Start difference. First operand has 77 places, 79 transitions, 240 flow. Second operand 3 states and 456 transitions. [2023-08-31 11:27:28,570 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 79 places, 97 transitions, 403 flow [2023-08-31 11:27:28,572 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 77 places, 97 transitions, 393 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 11:27:28,573 INFO L231 Difference]: Finished difference. Result has 78 places, 82 transitions, 261 flow [2023-08-31 11:27:28,573 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} [2023-08-31 11:27:28,573 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 4 predicate places. [2023-08-31 11:27:28,574 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 82 transitions, 261 flow [2023-08-31 11:27:28,574 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) [2023-08-31 11:27:28,574 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:28,574 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:28,574 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 11:27:28,574 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thr2Err2ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:28,575 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:28,575 INFO L85 PathProgramCache]: Analyzing trace with hash 3616118, now seen corresponding path program 1 times [2023-08-31 11:27:28,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:28,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246928720] [2023-08-31 11:27:28,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:28,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:28,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:28,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:28,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:28,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246928720] [2023-08-31 11:27:28,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1246928720] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:28,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:28,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:28,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [873566951] [2023-08-31 11:27:28,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:28,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:28,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:28,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:28,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:28,606 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 137 out of 232 [2023-08-31 11:27:28,606 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) [2023-08-31 11:27:28,606 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:28,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 137 of 232 [2023-08-31 11:27:28,606 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:28,874 INFO L130 PetriNetUnfolder]: 1895/4290 cut-off events. [2023-08-31 11:27:28,874 INFO L131 PetriNetUnfolder]: For 808/989 co-relation queries the response was YES. [2023-08-31 11:27:28,880 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. [2023-08-31 11:27:28,893 INFO L137 encePairwiseOnDemand]: 227/232 looper letters, 68 selfloop transitions, 5 changer transitions 0/112 dead transitions. [2023-08-31 11:27:28,893 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 112 transitions, 490 flow [2023-08-31 11:27:28,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:28,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:28,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 473 transitions. [2023-08-31 11:27:28,895 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6795977011494253 [2023-08-31 11:27:28,895 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 473 transitions. [2023-08-31 11:27:28,895 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 473 transitions. [2023-08-31 11:27:28,895 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:28,895 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 473 transitions. [2023-08-31 11:27:28,896 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) [2023-08-31 11:27:28,897 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) [2023-08-31 11:27:28,897 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) [2023-08-31 11:27:28,897 INFO L175 Difference]: Start difference. First operand has 78 places, 82 transitions, 261 flow. Second operand 3 states and 473 transitions. [2023-08-31 11:27:28,897 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 112 transitions, 490 flow [2023-08-31 11:27:28,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 112 transitions, 485 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 11:27:28,900 INFO L231 Difference]: Finished difference. Result has 81 places, 87 transitions, 304 flow [2023-08-31 11:27:28,901 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} [2023-08-31 11:27:28,902 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 7 predicate places. [2023-08-31 11:27:28,902 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 87 transitions, 304 flow [2023-08-31 11:27:28,903 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) [2023-08-31 11:27:28,903 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:28,903 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:28,903 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 11:27:28,903 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err3ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:28,903 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:28,903 INFO L85 PathProgramCache]: Analyzing trace with hash 399601406, now seen corresponding path program 1 times [2023-08-31 11:27:28,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:28,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040895398] [2023-08-31 11:27:28,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:28,904 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:28,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 11:27:28,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 11:27:28,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 11:27:28,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040895398] [2023-08-31 11:27:28,935 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040895398] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 11:27:28,935 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 11:27:28,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 11:27:28,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753489150] [2023-08-31 11:27:28,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 11:27:28,935 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 11:27:28,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 11:27:28,936 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 11:27:28,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 11:27:28,945 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 134 out of 232 [2023-08-31 11:27:28,945 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) [2023-08-31 11:27:28,945 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 11:27:28,945 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 134 of 232 [2023-08-31 11:27:28,945 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 11:27:29,405 INFO L130 PetriNetUnfolder]: 3911/8658 cut-off events. [2023-08-31 11:27:29,405 INFO L131 PetriNetUnfolder]: For 2585/2852 co-relation queries the response was YES. [2023-08-31 11:27:29,419 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. [2023-08-31 11:27:29,442 INFO L137 encePairwiseOnDemand]: 224/232 looper letters, 83 selfloop transitions, 8 changer transitions 0/129 dead transitions. [2023-08-31 11:27:29,442 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 83 places, 129 transitions, 621 flow [2023-08-31 11:27:29,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 11:27:29,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 11:27:29,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 476 transitions. [2023-08-31 11:27:29,444 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.6839080459770115 [2023-08-31 11:27:29,444 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 476 transitions. [2023-08-31 11:27:29,444 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 476 transitions. [2023-08-31 11:27:29,444 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 11:27:29,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 476 transitions. [2023-08-31 11:27:29,445 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) [2023-08-31 11:27:29,446 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) [2023-08-31 11:27:29,447 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) [2023-08-31 11:27:29,447 INFO L175 Difference]: Start difference. First operand has 81 places, 87 transitions, 304 flow. Second operand 3 states and 476 transitions. [2023-08-31 11:27:29,447 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 83 places, 129 transitions, 621 flow [2023-08-31 11:27:29,450 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 81 places, 129 transitions, 607 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 11:27:29,452 INFO L231 Difference]: Finished difference. Result has 83 places, 95 transitions, 378 flow [2023-08-31 11:27:29,452 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} [2023-08-31 11:27:29,452 INFO L281 CegarLoopForPetriNet]: 74 programPoint places, 9 predicate places. [2023-08-31 11:27:29,452 INFO L495 AbstractCegarLoop]: Abstraction has has 83 places, 95 transitions, 378 flow [2023-08-31 11:27:29,453 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) [2023-08-31 11:27:29,453 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 11:27:29,453 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:29,453 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 11:27:29,453 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thr2Err0ASSERT_VIOLATIONDATA_RACE === [thr2Err0ASSERT_VIOLATIONDATA_RACE, thr2Err1ASSERT_VIOLATIONDATA_RACE, thr2Err2ASSERT_VIOLATIONDATA_RACE, thr2Err4ASSERT_VIOLATIONDATA_RACE (and 28 more)] === [2023-08-31 11:27:29,454 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 11:27:29,454 INFO L85 PathProgramCache]: Analyzing trace with hash 445087783, now seen corresponding path program 1 times [2023-08-31 11:27:29,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 11:27:29,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1571923403] [2023-08-31 11:27:29,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 11:27:29,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 11:27:29,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:27:29,466 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-08-31 11:27:29,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-08-31 11:27:29,483 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-08-31 11:27:29,483 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-08-31 11:27:29,484 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location thr2Err0ASSERT_VIOLATIONDATA_RACE (31 of 32 remaining) [2023-08-31 11:27:29,485 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err0ASSERT_VIOLATIONDATA_RACE (30 of 32 remaining) [2023-08-31 11:27:29,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (29 of 32 remaining) [2023-08-31 11:27:29,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (28 of 32 remaining) [2023-08-31 11:27:29,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (27 of 32 remaining) [2023-08-31 11:27:29,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (26 of 32 remaining) [2023-08-31 11:27:29,486 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (25 of 32 remaining) [2023-08-31 11:27:29,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (24 of 32 remaining) [2023-08-31 11:27:29,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (23 of 32 remaining) [2023-08-31 11:27:29,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (22 of 32 remaining) [2023-08-31 11:27:29,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (21 of 32 remaining) [2023-08-31 11:27:29,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (20 of 32 remaining) [2023-08-31 11:27:29,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (19 of 32 remaining) [2023-08-31 11:27:29,487 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (18 of 32 remaining) [2023-08-31 11:27:29,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (17 of 32 remaining) [2023-08-31 11:27:29,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (16 of 32 remaining) [2023-08-31 11:27:29,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (15 of 32 remaining) [2023-08-31 11:27:29,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 32 remaining) [2023-08-31 11:27:29,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 32 remaining) [2023-08-31 11:27:29,488 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err1ASSERT_VIOLATIONDATA_RACE (12 of 32 remaining) [2023-08-31 11:27:29,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err2ASSERT_VIOLATIONDATA_RACE (11 of 32 remaining) [2023-08-31 11:27:29,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err4ASSERT_VIOLATIONDATA_RACE (10 of 32 remaining) [2023-08-31 11:27:29,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err3ASSERT_VIOLATIONDATA_RACE (9 of 32 remaining) [2023-08-31 11:27:29,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err5ASSERT_VIOLATIONDATA_RACE (8 of 32 remaining) [2023-08-31 11:27:29,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr2Err6ASSERT_VIOLATIONDATA_RACE (7 of 32 remaining) [2023-08-31 11:27:29,489 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err0ASSERT_VIOLATIONDATA_RACE (6 of 32 remaining) [2023-08-31 11:27:29,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err1ASSERT_VIOLATIONDATA_RACE (5 of 32 remaining) [2023-08-31 11:27:29,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err2ASSERT_VIOLATIONDATA_RACE (4 of 32 remaining) [2023-08-31 11:27:29,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err4ASSERT_VIOLATIONDATA_RACE (3 of 32 remaining) [2023-08-31 11:27:29,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err3ASSERT_VIOLATIONDATA_RACE (2 of 32 remaining) [2023-08-31 11:27:29,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err5ASSERT_VIOLATIONDATA_RACE (1 of 32 remaining) [2023-08-31 11:27:29,490 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location thr1Err6ASSERT_VIOLATIONDATA_RACE (0 of 32 remaining) [2023-08-31 11:27:29,490 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 11:27:29,491 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 11:27:29,495 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 11:27:29,495 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 11:27:29,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 11:27:29 BasicIcfg [2023-08-31 11:27:29,512 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 11:27:29,512 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 11:27:29,512 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 11:27:29,513 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 11:27:29,513 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 11:27:25" (3/4) ... [2023-08-31 11:27:29,514 INFO L140 WitnessPrinter]: No result that supports witness generation found [2023-08-31 11:27:29,515 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 11:27:29,515 INFO L158 Benchmark]: Toolchain (without parser) took 4969.94ms. Allocated memory was 71.3MB in the beginning and 369.1MB in the end (delta: 297.8MB). Free memory was 48.0MB in the beginning and 171.7MB in the end (delta: -123.7MB). Peak memory consumption was 176.0MB. Max. memory is 16.1GB. [2023-08-31 11:27:29,515 INFO L158 Benchmark]: CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 48.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 11:27:29,515 INFO L158 Benchmark]: CACSL2BoogieTranslator took 283.96ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 47.8MB in the beginning and 61.9MB in the end (delta: -14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2023-08-31 11:27:29,516 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.73ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 59.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 11:27:29,516 INFO L158 Benchmark]: Boogie Preprocessor took 18.04ms. Allocated memory is still 88.1MB. Free memory was 59.8MB in the beginning and 58.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-31 11:27:29,516 INFO L158 Benchmark]: RCFGBuilder took 397.63ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 65.1MB in the end (delta: -6.9MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2023-08-31 11:27:29,516 INFO L158 Benchmark]: TraceAbstraction took 4237.37ms. Allocated memory was 88.1MB in the beginning and 369.1MB in the end (delta: 281.0MB). Free memory was 64.7MB in the beginning and 171.7MB in the end (delta: -107.0MB). Peak memory consumption was 175.0MB. Max. memory is 16.1GB. [2023-08-31 11:27:29,517 INFO L158 Benchmark]: Witness Printer took 2.30ms. Allocated memory is still 369.1MB. Free memory is still 171.7MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 11:27:29,518 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31ms. Allocated memory is still 71.3MB. Free memory was 48.7MB in the beginning and 48.6MB in the end (delta: 94.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 283.96ms. Allocated memory was 71.3MB in the beginning and 88.1MB in the end (delta: 16.8MB). Free memory was 47.8MB in the beginning and 61.9MB in the end (delta: -14.0MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 26.73ms. Allocated memory is still 88.1MB. Free memory was 61.9MB in the beginning and 59.8MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 18.04ms. Allocated memory is still 88.1MB. Free memory was 59.8MB in the beginning and 58.2MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 397.63ms. Allocated memory is still 88.1MB. Free memory was 58.2MB in the beginning and 65.1MB in the end (delta: -6.9MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 4237.37ms. Allocated memory was 88.1MB in the beginning and 369.1MB in the end (delta: 281.0MB). Free memory was 64.7MB in the beginning and 171.7MB in the end (delta: -107.0MB). Peak memory consumption was 175.0MB. Max. memory is 16.1GB. * Witness Printer took 2.30ms. Allocated memory is still 369.1MB. Free memory is still 171.7MB. 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: 1.7s, 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: 4.1s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 274 SdHoareTripleChecker+Valid, 0.4s 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! [2023-08-31 11:27:29,561 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