./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i --full-output --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.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 a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations TOGETHER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 16:40:58,829 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 16:40:58,831 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 16:40:58,872 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 16:40:58,872 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 16:40:58,875 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 16:40:58,877 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 16:40:58,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 16:40:58,882 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 16:40:58,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 16:40:58,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 16:40:58,889 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 16:40:58,889 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 16:40:58,891 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 16:40:58,892 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 16:40:58,897 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 16:40:58,898 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 16:40:58,899 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 16:40:58,901 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 16:40:58,906 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 16:40:58,907 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 16:40:58,908 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 16:40:58,909 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 16:40:58,909 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 16:40:58,916 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 16:40:58,916 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 16:40:58,916 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 16:40:58,918 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 16:40:58,919 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 16:40:58,919 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 16:40:58,920 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 16:40:58,921 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 16:40:58,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 16:40:58,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 16:40:58,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 16:40:58,925 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 16:40:58,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 16:40:58,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 16:40:58,926 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 16:40:58,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 16:40:58,927 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 16:40:58,928 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 16:40:58,948 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 16:40:58,949 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 16:40:58,949 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 16:40:58,949 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 16:40:58,950 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 16:40:58,950 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 16:40:58,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 16:40:58,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 16:40:58,951 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 16:40:58,951 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 16:40:58,952 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 16:40:58,952 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 16:40:58,953 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 16:40:58,953 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 16:40:58,953 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 16:40:58,953 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 16:40:58,953 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 16:40:58,954 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 16:40:58,954 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 16:40:58,954 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 16:40:58,954 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 16:40:58,954 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 16:40:58,954 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 16:40:58,955 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 16:40:58,955 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 16:40:58,955 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 16:40:58,955 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:40:58,956 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 16:40:58,956 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 16:40:58,956 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 16:40:58,956 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 16:40:58,956 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 16:40:58,957 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 16:40:58,957 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 16:40:58,957 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 16:40:58,957 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 16:40:58,957 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 16:40:58,958 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> TOGETHER [2023-08-29 16:40:59,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 16:40:59,263 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 16:40:59,267 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 16:40:59,268 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 16:40:59,268 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 16:40:59,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-29 16:41:00,476 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 16:41:00,865 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 16:41:00,866 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-29 16:41:00,886 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8465476/f007f68884544ca0bdb4c9c889469438/FLAGfc9bb720a [2023-08-29 16:41:00,901 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab8465476/f007f68884544ca0bdb4c9c889469438 [2023-08-29 16:41:00,905 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 16:41:00,906 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 16:41:00,907 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 16:41:00,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 16:41:00,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 16:41:00,910 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:41:00" (1/1) ... [2023-08-29 16:41:00,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67597b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:00, skipping insertion in model container [2023-08-29 16:41:00,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 04:41:00" (1/1) ... [2023-08-29 16:41:00,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 16:41:00,959 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 16:41:01,527 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-08-29 16:41:01,579 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:41:01,592 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 16:41:01,636 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-08-29 16:41:01,661 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 16:41:01,779 INFO L208 MainTranslator]: Completed translation [2023-08-29 16:41:01,779 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01 WrapperNode [2023-08-29 16:41:01,779 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 16:41:01,781 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 16:41:01,781 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 16:41:01,781 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 16:41:01,786 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,810 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,840 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 269 [2023-08-29 16:41:01,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 16:41:01,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 16:41:01,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 16:41:01,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 16:41:01,849 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,849 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,860 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,861 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,881 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,891 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,897 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 16:41:01,898 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 16:41:01,898 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 16:41:01,898 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 16:41:01,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (1/1) ... [2023-08-29 16:41:01,917 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 16:41:01,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 16:41:01,945 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 16:41:01,955 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 16:41:01,979 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-08-29 16:41:01,979 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-08-29 16:41:01,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 16:41:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 16:41:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-08-29 16:41:01,981 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-08-29 16:41:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 16:41:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 16:41:01,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 16:41:01,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 16:41:01,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 16:41:01,982 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 16:41:01,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 16:41:01,982 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 16:41:01,983 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 16:41:02,299 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 16:41:02,301 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 16:41:02,556 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 16:41:02,565 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 16:41:02,565 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 16:41:02,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:41:02 BoogieIcfgContainer [2023-08-29 16:41:02,567 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 16:41:02,568 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 16:41:02,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 16:41:02,571 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 16:41:02,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 04:41:00" (1/3) ... [2023-08-29 16:41:02,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6856366e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:41:02, skipping insertion in model container [2023-08-29 16:41:02,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 04:41:01" (2/3) ... [2023-08-29 16:41:02,572 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6856366e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 04:41:02, skipping insertion in model container [2023-08-29 16:41:02,572 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:41:02" (3/3) ... [2023-08-29 16:41:02,573 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-08-29 16:41:02,580 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 16:41:02,587 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 16:41:02,588 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-29 16:41:02,588 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 16:41:02,673 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-29 16:41:02,706 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 419 transitions, 868 flow [2023-08-29 16:41:02,848 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-29 16:41:02,849 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 16:41:02,858 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 427 events. 33/427 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1131 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 293. Up to 11 conditions per place. [2023-08-29 16:41:02,858 INFO L82 GeneralOperation]: Start removeDead. Operand has 389 places, 419 transitions, 868 flow [2023-08-29 16:41:02,869 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 289 transitions, 595 flow [2023-08-29 16:41:02,873 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 16:41:02,887 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 289 transitions, 595 flow [2023-08-29 16:41:02,888 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 289 transitions, 595 flow [2023-08-29 16:41:02,889 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 289 transitions, 595 flow [2023-08-29 16:41:02,948 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-29 16:41:02,948 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 16:41:02,952 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 427 events. 33/427 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1124 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 293. Up to 11 conditions per place. [2023-08-29 16:41:02,961 INFO L119 LiptonReduction]: Number of co-enabled transitions 16262 [2023-08-29 16:41:09,326 INFO L134 LiptonReduction]: Checked pairs total: 47217 [2023-08-29 16:41:09,327 INFO L136 LiptonReduction]: Total number of compositions: 335 [2023-08-29 16:41:09,339 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 16:41:09,344 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;@6ebd4121, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 16:41:09,344 INFO L358 AbstractCegarLoop]: Starting to check reachability of 36 error locations. [2023-08-29 16:41:09,346 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 16:41:09,346 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 16:41:09,346 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:09,346 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 16:41:09,347 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:09,351 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1216, now seen corresponding path program 1 times [2023-08-29 16:41:09,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:09,359 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016318240] [2023-08-29 16:41:09,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:09,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:09,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:09,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:09,517 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:09,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016318240] [2023-08-29 16:41:09,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016318240] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:09,518 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:09,518 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 16:41:09,519 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [758770368] [2023-08-29 16:41:09,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:09,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 16:41:09,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:09,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 16:41:09,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 16:41:09,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 754 [2023-08-29 16:41:09,553 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 74 transitions, 165 flow. Second operand has 2 states, 2 states have (on average 389.5) internal successors, (779), 2 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:09,553 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:09,553 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 754 [2023-08-29 16:41:09,554 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:09,702 INFO L130 PetriNetUnfolder]: 582/1117 cut-off events. [2023-08-29 16:41:09,702 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 16:41:09,704 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1117 events. 582/1117 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6011 event pairs, 333 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 1839. Up to 850 conditions per place. [2023-08-29 16:41:09,709 INFO L137 encePairwiseOnDemand]: 741/754 looper letters, 32 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2023-08-29 16:41:09,709 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 203 flow [2023-08-29 16:41:09,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 16:41:09,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 16:41:09,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 823 transitions. [2023-08-29 16:41:09,724 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5457559681697612 [2023-08-29 16:41:09,725 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 823 transitions. [2023-08-29 16:41:09,725 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 823 transitions. [2023-08-29 16:41:09,727 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:09,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 823 transitions. [2023-08-29 16:41:09,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 411.5) internal successors, (823), 2 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:09,740 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:09,742 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:09,743 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 165 flow. Second operand 2 states and 823 transitions. [2023-08-29 16:41:09,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 203 flow [2023-08-29 16:41:09,746 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 16:41:09,748 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 135 flow [2023-08-29 16:41:09,750 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=135, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2023-08-29 16:41:09,753 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -13 predicate places. [2023-08-29 16:41:09,753 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 135 flow [2023-08-29 16:41:09,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 389.5) internal successors, (779), 2 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:09,754 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:09,754 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 16:41:09,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 16:41:09,755 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:09,755 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:09,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1677926980, now seen corresponding path program 1 times [2023-08-29 16:41:09,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:09,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982783240] [2023-08-29 16:41:09,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:09,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:09,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:09,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:09,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982783240] [2023-08-29 16:41:09,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982783240] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:09,926 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:09,927 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:41:09,927 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392471278] [2023-08-29 16:41:09,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:09,928 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:09,928 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:09,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:09,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:10,019 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 754 [2023-08-29 16:41:10,020 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,020 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:10,021 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 754 [2023-08-29 16:41:10,021 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:10,190 INFO L130 PetriNetUnfolder]: 912/1673 cut-off events. [2023-08-29 16:41:10,190 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-29 16:41:10,192 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3061 conditions, 1673 events. 912/1673 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9178 event pairs, 531 based on Foata normal form. 0/1073 useless extension candidates. Maximal degree in co-relation 3057. Up to 1268 conditions per place. [2023-08-29 16:41:10,197 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 44 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2023-08-29 16:41:10,198 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 253 flow [2023-08-29 16:41:10,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:10,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:10,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1156 transitions. [2023-08-29 16:41:10,201 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.51105216622458 [2023-08-29 16:41:10,201 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1156 transitions. [2023-08-29 16:41:10,201 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1156 transitions. [2023-08-29 16:41:10,202 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:10,202 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1156 transitions. [2023-08-29 16:41:10,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,209 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,211 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,211 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 135 flow. Second operand 3 states and 1156 transitions. [2023-08-29 16:41:10,211 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 253 flow [2023-08-29 16:41:10,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 72 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:41:10,214 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 161 flow [2023-08-29 16:41:10,214 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-29 16:41:10,215 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -10 predicate places. [2023-08-29 16:41:10,215 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 161 flow [2023-08-29 16:41:10,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,216 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:10,216 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:10,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 16:41:10,216 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:10,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:10,217 INFO L85 PathProgramCache]: Analyzing trace with hash 325521323, now seen corresponding path program 1 times [2023-08-29 16:41:10,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:10,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104398043] [2023-08-29 16:41:10,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:10,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:10,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:10,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:10,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:10,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104398043] [2023-08-29 16:41:10,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104398043] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:10,276 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:10,276 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:41:10,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520497315] [2023-08-29 16:41:10,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:10,277 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:10,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:10,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:10,278 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:10,288 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 754 [2023-08-29 16:41:10,289 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,289 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:10,290 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 754 [2023-08-29 16:41:10,290 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:10,447 INFO L130 PetriNetUnfolder]: 652/1238 cut-off events. [2023-08-29 16:41:10,447 INFO L131 PetriNetUnfolder]: For 83/124 co-relation queries the response was YES. [2023-08-29 16:41:10,449 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2383 conditions, 1238 events. 652/1238 cut-off events. For 83/124 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6704 event pairs, 359 based on Foata normal form. 0/769 useless extension candidates. Maximal degree in co-relation 2377. Up to 926 conditions per place. [2023-08-29 16:41:10,454 INFO L137 encePairwiseOnDemand]: 751/754 looper letters, 32 selfloop transitions, 0 changer transitions 2/65 dead transitions. [2023-08-29 16:41:10,454 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 65 transitions, 231 flow [2023-08-29 16:41:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:10,457 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1186 transitions. [2023-08-29 16:41:10,458 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5243147656940761 [2023-08-29 16:41:10,458 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1186 transitions. [2023-08-29 16:41:10,458 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1186 transitions. [2023-08-29 16:41:10,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:10,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1186 transitions. [2023-08-29 16:41:10,461 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,466 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,467 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 161 flow. Second operand 3 states and 1186 transitions. [2023-08-29 16:41:10,467 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 65 transitions, 231 flow [2023-08-29 16:41:10,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:41:10,471 INFO L231 Difference]: Finished difference. Result has 62 places, 63 transitions, 159 flow [2023-08-29 16:41:10,471 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=62, PETRI_TRANSITIONS=63} [2023-08-29 16:41:10,473 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -8 predicate places. [2023-08-29 16:41:10,473 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 63 transitions, 159 flow [2023-08-29 16:41:10,474 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,474 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:10,474 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:10,475 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 16:41:10,475 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:10,475 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:10,475 INFO L85 PathProgramCache]: Analyzing trace with hash 1875255995, now seen corresponding path program 1 times [2023-08-29 16:41:10,476 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:10,476 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061855389] [2023-08-29 16:41:10,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:10,476 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:10,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:10,545 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:10,545 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:10,546 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061855389] [2023-08-29 16:41:10,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061855389] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:10,546 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:10,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:41:10,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6715275] [2023-08-29 16:41:10,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:10,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:10,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:10,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:10,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:10,604 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-29 16:41:10,605 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 63 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,605 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:10,606 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-29 16:41:10,608 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:10,821 INFO L130 PetriNetUnfolder]: 1229/2073 cut-off events. [2023-08-29 16:41:10,821 INFO L131 PetriNetUnfolder]: For 278/327 co-relation queries the response was YES. [2023-08-29 16:41:10,824 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4561 conditions, 2073 events. 1229/2073 cut-off events. For 278/327 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10436 event pairs, 511 based on Foata normal form. 1/1449 useless extension candidates. Maximal degree in co-relation 4554. Up to 1345 conditions per place. [2023-08-29 16:41:10,831 INFO L137 encePairwiseOnDemand]: 741/754 looper letters, 65 selfloop transitions, 12 changer transitions 0/96 dead transitions. [2023-08-29 16:41:10,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 96 transitions, 396 flow [2023-08-29 16:41:10,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:10,833 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:10,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1146 transitions. [2023-08-29 16:41:10,836 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.506631299734748 [2023-08-29 16:41:10,836 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1146 transitions. [2023-08-29 16:41:10,836 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1146 transitions. [2023-08-29 16:41:10,837 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:10,837 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1146 transitions. [2023-08-29 16:41:10,839 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,843 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,845 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,845 INFO L175 Difference]: Start difference. First operand has 62 places, 63 transitions, 159 flow. Second operand 3 states and 1146 transitions. [2023-08-29 16:41:10,845 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 96 transitions, 396 flow [2023-08-29 16:41:10,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 96 transitions, 388 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-29 16:41:10,850 INFO L231 Difference]: Finished difference. Result has 64 places, 73 transitions, 257 flow [2023-08-29 16:41:10,850 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=64, PETRI_TRANSITIONS=73} [2023-08-29 16:41:10,851 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2023-08-29 16:41:10,851 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 73 transitions, 257 flow [2023-08-29 16:41:10,852 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,852 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:10,852 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:10,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 16:41:10,853 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:10,853 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:10,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2128745576, now seen corresponding path program 1 times [2023-08-29 16:41:10,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:10,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314803276] [2023-08-29 16:41:10,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:10,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:10,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:10,944 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:10,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:10,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314803276] [2023-08-29 16:41:10,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314803276] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:10,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:10,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:41:10,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1746117726] [2023-08-29 16:41:10,946 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:10,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:10,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:10,947 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:10,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:10,965 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 754 [2023-08-29 16:41:10,967 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 73 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:10,967 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:10,967 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 754 [2023-08-29 16:41:10,967 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:11,109 INFO L130 PetriNetUnfolder]: 869/1628 cut-off events. [2023-08-29 16:41:11,110 INFO L131 PetriNetUnfolder]: For 479/549 co-relation queries the response was YES. [2023-08-29 16:41:11,112 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 1628 events. 869/1628 cut-off events. For 479/549 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 9125 event pairs, 349 based on Foata normal form. 5/1116 useless extension candidates. Maximal degree in co-relation 3511. Up to 918 conditions per place. [2023-08-29 16:41:11,119 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 40 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2023-08-29 16:41:11,119 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 85 transitions, 373 flow [2023-08-29 16:41:11,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:11,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:11,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-08-29 16:41:11,122 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5141467727674625 [2023-08-29 16:41:11,123 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-08-29 16:41:11,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-08-29 16:41:11,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:11,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-08-29 16:41:11,126 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,129 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,131 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,131 INFO L175 Difference]: Start difference. First operand has 64 places, 73 transitions, 257 flow. Second operand 3 states and 1163 transitions. [2023-08-29 16:41:11,131 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 85 transitions, 373 flow [2023-08-29 16:41:11,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 85 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 16:41:11,137 INFO L231 Difference]: Finished difference. Result has 66 places, 76 transitions, 271 flow [2023-08-29 16:41:11,137 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=66, PETRI_TRANSITIONS=76} [2023-08-29 16:41:11,139 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2023-08-29 16:41:11,140 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 76 transitions, 271 flow [2023-08-29 16:41:11,140 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,140 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:11,141 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:11,141 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 16:41:11,141 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:11,142 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:11,142 INFO L85 PathProgramCache]: Analyzing trace with hash 1945898179, now seen corresponding path program 1 times [2023-08-29 16:41:11,142 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:11,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072827069] [2023-08-29 16:41:11,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:11,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:11,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:11,231 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:11,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:11,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072827069] [2023-08-29 16:41:11,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072827069] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:11,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:11,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:41:11,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212523925] [2023-08-29 16:41:11,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:11,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:11,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:11,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:11,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:11,256 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 754 [2023-08-29 16:41:11,257 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 76 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,257 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:11,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 754 [2023-08-29 16:41:11,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:11,390 INFO L130 PetriNetUnfolder]: 770/1493 cut-off events. [2023-08-29 16:41:11,391 INFO L131 PetriNetUnfolder]: For 265/334 co-relation queries the response was YES. [2023-08-29 16:41:11,393 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3181 conditions, 1493 events. 770/1493 cut-off events. For 265/334 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 8435 event pairs, 318 based on Foata normal form. 29/1140 useless extension candidates. Maximal degree in co-relation 3172. Up to 800 conditions per place. [2023-08-29 16:41:11,399 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 41 selfloop transitions, 2 changer transitions 0/81 dead transitions. [2023-08-29 16:41:11,399 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 81 transitions, 353 flow [2023-08-29 16:41:11,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:11,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:11,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1168 transitions. [2023-08-29 16:41:11,402 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5163572060123784 [2023-08-29 16:41:11,402 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1168 transitions. [2023-08-29 16:41:11,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1168 transitions. [2023-08-29 16:41:11,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:11,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1168 transitions. [2023-08-29 16:41:11,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 389.3333333333333) internal successors, (1168), 3 states have internal predecessors, (1168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,410 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,410 INFO L175 Difference]: Start difference. First operand has 66 places, 76 transitions, 271 flow. Second operand 3 states and 1168 transitions. [2023-08-29 16:41:11,411 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 81 transitions, 353 flow [2023-08-29 16:41:11,412 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 81 transitions, 341 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 16:41:11,415 INFO L231 Difference]: Finished difference. Result has 63 places, 72 transitions, 241 flow [2023-08-29 16:41:11,415 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=241, PETRI_PLACES=63, PETRI_TRANSITIONS=72} [2023-08-29 16:41:11,417 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -7 predicate places. [2023-08-29 16:41:11,419 INFO L495 AbstractCegarLoop]: Abstraction has has 63 places, 72 transitions, 241 flow [2023-08-29 16:41:11,420 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,420 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:11,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:11,421 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 16:41:11,421 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:11,422 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:11,422 INFO L85 PathProgramCache]: Analyzing trace with hash 1932547844, now seen corresponding path program 1 times [2023-08-29 16:41:11,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:11,422 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103687198] [2023-08-29 16:41:11,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:11,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:11,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:11,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:11,472 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:11,472 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103687198] [2023-08-29 16:41:11,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103687198] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:11,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:11,473 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:41:11,473 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875946613] [2023-08-29 16:41:11,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:11,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:11,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:11,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:11,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:11,533 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 754 [2023-08-29 16:41:11,534 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 72 transitions, 241 flow. Second operand has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,534 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:11,534 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 754 [2023-08-29 16:41:11,535 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:11,695 INFO L130 PetriNetUnfolder]: 990/1764 cut-off events. [2023-08-29 16:41:11,695 INFO L131 PetriNetUnfolder]: For 523/593 co-relation queries the response was YES. [2023-08-29 16:41:11,697 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4104 conditions, 1764 events. 990/1764 cut-off events. For 523/593 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 9239 event pairs, 528 based on Foata normal form. 15/1366 useless extension candidates. Maximal degree in co-relation 4096. Up to 1369 conditions per place. [2023-08-29 16:41:11,703 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 56 selfloop transitions, 10 changer transitions 0/92 dead transitions. [2023-08-29 16:41:11,704 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 92 transitions, 434 flow [2023-08-29 16:41:11,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:11,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:11,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1160 transitions. [2023-08-29 16:41:11,707 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5128205128205128 [2023-08-29 16:41:11,707 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1160 transitions. [2023-08-29 16:41:11,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1160 transitions. [2023-08-29 16:41:11,708 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:11,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1160 transitions. [2023-08-29 16:41:11,710 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 386.6666666666667) internal successors, (1160), 3 states have internal predecessors, (1160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,713 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,714 INFO L175 Difference]: Start difference. First operand has 63 places, 72 transitions, 241 flow. Second operand 3 states and 1160 transitions. [2023-08-29 16:41:11,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 92 transitions, 434 flow [2023-08-29 16:41:11,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 92 transitions, 428 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 16:41:11,717 INFO L231 Difference]: Finished difference. Result has 64 places, 78 transitions, 305 flow [2023-08-29 16:41:11,717 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=237, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=62, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=305, PETRI_PLACES=64, PETRI_TRANSITIONS=78} [2023-08-29 16:41:11,718 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2023-08-29 16:41:11,718 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 78 transitions, 305 flow [2023-08-29 16:41:11,718 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:11,718 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:11,719 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:11,719 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 16:41:11,719 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:11,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:11,719 INFO L85 PathProgramCache]: Analyzing trace with hash 81198873, now seen corresponding path program 1 times [2023-08-29 16:41:11,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:11,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2036599783] [2023-08-29 16:41:11,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:11,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:11,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:12,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:12,043 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:12,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2036599783] [2023-08-29 16:41:12,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2036599783] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:12,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:12,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:41:12,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410735576] [2023-08-29 16:41:12,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:12,045 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:41:12,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:12,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:41:12,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:41:12,173 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 754 [2023-08-29 16:41:12,175 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 78 transitions, 305 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,175 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:12,175 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 754 [2023-08-29 16:41:12,175 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:12,552 INFO L130 PetriNetUnfolder]: 1803/2978 cut-off events. [2023-08-29 16:41:12,552 INFO L131 PetriNetUnfolder]: For 1028/1297 co-relation queries the response was YES. [2023-08-29 16:41:12,556 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6901 conditions, 2978 events. 1803/2978 cut-off events. For 1028/1297 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 16763 event pairs, 408 based on Foata normal form. 82/2379 useless extension candidates. Maximal degree in co-relation 6892. Up to 991 conditions per place. [2023-08-29 16:41:12,568 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 142 selfloop transitions, 4 changer transitions 0/181 dead transitions. [2023-08-29 16:41:12,568 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 181 transitions, 967 flow [2023-08-29 16:41:12,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:41:12,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:41:12,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2417 transitions. [2023-08-29 16:41:12,573 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.534261715296198 [2023-08-29 16:41:12,573 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2417 transitions. [2023-08-29 16:41:12,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2417 transitions. [2023-08-29 16:41:12,574 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:12,574 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2417 transitions. [2023-08-29 16:41:12,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.8333333333333) internal successors, (2417), 6 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,585 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,585 INFO L175 Difference]: Start difference. First operand has 64 places, 78 transitions, 305 flow. Second operand 6 states and 2417 transitions. [2023-08-29 16:41:12,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 181 transitions, 967 flow [2023-08-29 16:41:12,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 181 transitions, 949 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:41:12,589 INFO L231 Difference]: Finished difference. Result has 67 places, 77 transitions, 301 flow [2023-08-29 16:41:12,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=293, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=301, PETRI_PLACES=67, PETRI_TRANSITIONS=77} [2023-08-29 16:41:12,590 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2023-08-29 16:41:12,590 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 77 transitions, 301 flow [2023-08-29 16:41:12,591 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,591 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:12,591 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:12,591 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 16:41:12,591 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:12,592 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:12,592 INFO L85 PathProgramCache]: Analyzing trace with hash -2010733342, now seen corresponding path program 1 times [2023-08-29 16:41:12,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:12,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064994991] [2023-08-29 16:41:12,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:12,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:12,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:12,637 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:12,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:12,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064994991] [2023-08-29 16:41:12,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064994991] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:12,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:12,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:41:12,638 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680725563] [2023-08-29 16:41:12,638 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:12,638 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:12,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:12,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:12,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:12,644 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 754 [2023-08-29 16:41:12,646 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 77 transitions, 301 flow. Second operand has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,646 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:12,646 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 754 [2023-08-29 16:41:12,646 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:12,788 INFO L130 PetriNetUnfolder]: 798/1532 cut-off events. [2023-08-29 16:41:12,788 INFO L131 PetriNetUnfolder]: For 470/581 co-relation queries the response was YES. [2023-08-29 16:41:12,791 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3486 conditions, 1532 events. 798/1532 cut-off events. For 470/581 co-relation queries the response was YES. Maximal size of possible extension queue 91. Compared 8556 event pairs, 413 based on Foata normal form. 34/1180 useless extension candidates. Maximal degree in co-relation 3477. Up to 1057 conditions per place. [2023-08-29 16:41:12,796 INFO L137 encePairwiseOnDemand]: 752/754 looper letters, 44 selfloop transitions, 1 changer transitions 3/88 dead transitions. [2023-08-29 16:41:12,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 88 transitions, 430 flow [2023-08-29 16:41:12,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:12,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:12,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1201 transitions. [2023-08-29 16:41:12,799 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.530946065428824 [2023-08-29 16:41:12,799 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1201 transitions. [2023-08-29 16:41:12,799 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1201 transitions. [2023-08-29 16:41:12,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:12,800 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1201 transitions. [2023-08-29 16:41:12,802 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 400.3333333333333) internal successors, (1201), 3 states have internal predecessors, (1201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,805 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,805 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,805 INFO L175 Difference]: Start difference. First operand has 67 places, 77 transitions, 301 flow. Second operand 3 states and 1201 transitions. [2023-08-29 16:41:12,806 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 88 transitions, 430 flow [2023-08-29 16:41:12,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 88 transitions, 423 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 16:41:12,808 INFO L231 Difference]: Finished difference. Result has 66 places, 77 transitions, 299 flow [2023-08-29 16:41:12,808 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=294, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=299, PETRI_PLACES=66, PETRI_TRANSITIONS=77} [2023-08-29 16:41:12,809 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2023-08-29 16:41:12,809 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 77 transitions, 299 flow [2023-08-29 16:41:12,809 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,810 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:12,810 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:12,810 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 16:41:12,810 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:12,810 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:12,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1096269798, now seen corresponding path program 1 times [2023-08-29 16:41:12,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:12,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929645038] [2023-08-29 16:41:12,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:12,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:12,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:12,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:12,864 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:12,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929645038] [2023-08-29 16:41:12,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929645038] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:12,865 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:12,865 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 16:41:12,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573860721] [2023-08-29 16:41:12,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:12,866 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:12,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:12,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:12,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:12,871 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 754 [2023-08-29 16:41:12,872 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 77 transitions, 299 flow. Second operand has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,872 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:12,872 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 754 [2023-08-29 16:41:12,872 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:12,970 INFO L130 PetriNetUnfolder]: 295/668 cut-off events. [2023-08-29 16:41:12,970 INFO L131 PetriNetUnfolder]: For 189/216 co-relation queries the response was YES. [2023-08-29 16:41:12,972 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1438 conditions, 668 events. 295/668 cut-off events. For 189/216 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3279 event pairs, 93 based on Foata normal form. 25/532 useless extension candidates. Maximal degree in co-relation 1428. Up to 338 conditions per place. [2023-08-29 16:41:12,978 INFO L137 encePairwiseOnDemand]: 750/754 looper letters, 43 selfloop transitions, 3 changer transitions 6/72 dead transitions. [2023-08-29 16:41:12,978 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 72 transitions, 329 flow [2023-08-29 16:41:12,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:12,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:12,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1209 transitions. [2023-08-29 16:41:12,981 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2023-08-29 16:41:12,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1209 transitions. [2023-08-29 16:41:12,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1209 transitions. [2023-08-29 16:41:12,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:12,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1209 transitions. [2023-08-29 16:41:12,984 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,987 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,988 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,988 INFO L175 Difference]: Start difference. First operand has 66 places, 77 transitions, 299 flow. Second operand 3 states and 1209 transitions. [2023-08-29 16:41:12,988 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 72 transitions, 329 flow [2023-08-29 16:41:12,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 72 transitions, 277 flow, removed 9 selfloop flow, removed 7 redundant places. [2023-08-29 16:41:12,991 INFO L231 Difference]: Finished difference. Result has 57 places, 51 transitions, 147 flow [2023-08-29 16:41:12,992 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=53, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=147, PETRI_PLACES=57, PETRI_TRANSITIONS=51} [2023-08-29 16:41:12,992 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -13 predicate places. [2023-08-29 16:41:12,992 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 51 transitions, 147 flow [2023-08-29 16:41:12,993 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:12,993 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:12,993 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:12,993 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 16:41:12,993 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:12,994 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:12,994 INFO L85 PathProgramCache]: Analyzing trace with hash -652953724, now seen corresponding path program 1 times [2023-08-29 16:41:12,994 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:12,994 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1775292030] [2023-08-29 16:41:12,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:12,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:13,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:13,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 16:41:13,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:13,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1775292030] [2023-08-29 16:41:13,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1775292030] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:13,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:13,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 16:41:13,324 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842619189] [2023-08-29 16:41:13,324 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:13,324 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 16:41:13,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:13,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 16:41:13,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 16:41:13,438 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 754 [2023-08-29 16:41:13,440 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 51 transitions, 147 flow. Second operand has 6 states, 6 states have (on average 378.1666666666667) internal successors, (2269), 6 states have internal predecessors, (2269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,440 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:13,441 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 754 [2023-08-29 16:41:13,441 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:13,636 INFO L130 PetriNetUnfolder]: 831/1336 cut-off events. [2023-08-29 16:41:13,637 INFO L131 PetriNetUnfolder]: For 177/200 co-relation queries the response was YES. [2023-08-29 16:41:13,639 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2824 conditions, 1336 events. 831/1336 cut-off events. For 177/200 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 5652 event pairs, 226 based on Foata normal form. 1/971 useless extension candidates. Maximal degree in co-relation 2816. Up to 704 conditions per place. [2023-08-29 16:41:13,642 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 74 selfloop transitions, 4 changer transitions 5/98 dead transitions. [2023-08-29 16:41:13,642 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 98 transitions, 422 flow [2023-08-29 16:41:13,643 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 16:41:13,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 16:41:13,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2023-08-29 16:41:13,648 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2023-08-29 16:41:13,648 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2023-08-29 16:41:13,648 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2023-08-29 16:41:13,649 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:13,649 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2023-08-29 16:41:13,653 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,659 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,660 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,660 INFO L175 Difference]: Start difference. First operand has 57 places, 51 transitions, 147 flow. Second operand 6 states and 2340 transitions. [2023-08-29 16:41:13,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 98 transitions, 422 flow [2023-08-29 16:41:13,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 98 transitions, 418 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 16:41:13,663 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 171 flow [2023-08-29 16:41:13,663 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2023-08-29 16:41:13,663 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2023-08-29 16:41:13,663 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 171 flow [2023-08-29 16:41:13,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 378.1666666666667) internal successors, (2269), 6 states have internal predecessors, (2269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,664 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 16:41:13,664 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:13,664 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 16:41:13,665 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (and 33 more)] === [2023-08-29 16:41:13,665 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 16:41:13,665 INFO L85 PathProgramCache]: Analyzing trace with hash 493085014, now seen corresponding path program 1 times [2023-08-29 16:41:13,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 16:41:13,665 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1813167641] [2023-08-29 16:41:13,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 16:41:13,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 16:41:13,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 16:41:13,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 16:41:13,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 16:41:13,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1813167641] [2023-08-29 16:41:13,716 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1813167641] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 16:41:13,716 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 16:41:13,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 16:41:13,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [872280942] [2023-08-29 16:41:13,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 16:41:13,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 16:41:13,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 16:41:13,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 16:41:13,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 16:41:13,765 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 754 [2023-08-29 16:41:13,765 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,766 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 16:41:13,766 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 754 [2023-08-29 16:41:13,766 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 16:41:13,867 INFO L130 PetriNetUnfolder]: 502/977 cut-off events. [2023-08-29 16:41:13,867 INFO L131 PetriNetUnfolder]: For 220/247 co-relation queries the response was YES. [2023-08-29 16:41:13,869 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 977 events. 502/977 cut-off events. For 220/247 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 4266 event pairs, 328 based on Foata normal form. 4/864 useless extension candidates. Maximal degree in co-relation 2198. Up to 785 conditions per place. [2023-08-29 16:41:13,870 INFO L137 encePairwiseOnDemand]: 752/754 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-08-29 16:41:13,870 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 239 flow [2023-08-29 16:41:13,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 16:41:13,871 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 16:41:13,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2023-08-29 16:41:13,874 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5026525198938993 [2023-08-29 16:41:13,874 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2023-08-29 16:41:13,874 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2023-08-29 16:41:13,875 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 16:41:13,875 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2023-08-29 16:41:13,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,880 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,880 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 171 flow. Second operand 3 states and 1137 transitions. [2023-08-29 16:41:13,881 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 239 flow [2023-08-29 16:41:13,882 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 16:41:13,882 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-29 16:41:13,883 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2023-08-29 16:41:13,883 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2023-08-29 16:41:13,883 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-29 16:41:13,884 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 16:41:13,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (35 of 36 remaining) [2023-08-29 16:41:13,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (34 of 36 remaining) [2023-08-29 16:41:13,886 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (33 of 36 remaining) [2023-08-29 16:41:13,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (32 of 36 remaining) [2023-08-29 16:41:13,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (31 of 36 remaining) [2023-08-29 16:41:13,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (30 of 36 remaining) [2023-08-29 16:41:13,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (29 of 36 remaining) [2023-08-29 16:41:13,887 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (28 of 36 remaining) [2023-08-29 16:41:13,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (27 of 36 remaining) [2023-08-29 16:41:13,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (26 of 36 remaining) [2023-08-29 16:41:13,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (25 of 36 remaining) [2023-08-29 16:41:13,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (24 of 36 remaining) [2023-08-29 16:41:13,888 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (23 of 36 remaining) [2023-08-29 16:41:13,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (22 of 36 remaining) [2023-08-29 16:41:13,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (21 of 36 remaining) [2023-08-29 16:41:13,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (20 of 36 remaining) [2023-08-29 16:41:13,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (19 of 36 remaining) [2023-08-29 16:41:13,889 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (18 of 36 remaining) [2023-08-29 16:41:13,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (17 of 36 remaining) [2023-08-29 16:41:13,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (16 of 36 remaining) [2023-08-29 16:41:13,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (15 of 36 remaining) [2023-08-29 16:41:13,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 36 remaining) [2023-08-29 16:41:13,890 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (13 of 36 remaining) [2023-08-29 16:41:13,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (12 of 36 remaining) [2023-08-29 16:41:13,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (11 of 36 remaining) [2023-08-29 16:41:13,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (10 of 36 remaining) [2023-08-29 16:41:13,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (9 of 36 remaining) [2023-08-29 16:41:13,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (8 of 36 remaining) [2023-08-29 16:41:13,891 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (7 of 36 remaining) [2023-08-29 16:41:13,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (6 of 36 remaining) [2023-08-29 16:41:13,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (5 of 36 remaining) [2023-08-29 16:41:13,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (4 of 36 remaining) [2023-08-29 16:41:13,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (3 of 36 remaining) [2023-08-29 16:41:13,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (2 of 36 remaining) [2023-08-29 16:41:13,892 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (1 of 36 remaining) [2023-08-29 16:41:13,893 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 36 remaining) [2023-08-29 16:41:13,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 16:41:13,893 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 16:41:13,897 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 16:41:13,898 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 16:41:13,900 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 04:41:13 BasicIcfg [2023-08-29 16:41:13,900 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 16:41:13,901 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 16:41:13,901 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 16:41:13,901 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 16:41:13,902 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 04:41:02" (3/4) ... [2023-08-29 16:41:13,903 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 16:41:13,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-08-29 16:41:13,908 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-08-29 16:41:13,912 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-29 16:41:13,912 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-29 16:41:13,912 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 16:41:13,912 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 16:41:13,940 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 16:41:13,940 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 16:41:13,940 INFO L158 Benchmark]: Toolchain (without parser) took 13034.66ms. Allocated memory was 73.4MB in the beginning and 226.5MB in the end (delta: 153.1MB). Free memory was 47.9MB in the beginning and 129.2MB in the end (delta: -81.3MB). Peak memory consumption was 72.6MB. Max. memory is 16.1GB. [2023-08-29 16:41:13,941 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 16:41:13,941 INFO L158 Benchmark]: CACSL2BoogieTranslator took 873.02ms. Allocated memory is still 73.4MB. Free memory was 47.9MB in the beginning and 43.4MB in the end (delta: 4.6MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. [2023-08-29 16:41:13,941 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.94ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 39.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:41:13,941 INFO L158 Benchmark]: Boogie Preprocessor took 56.41ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 36.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 16:41:13,942 INFO L158 Benchmark]: RCFGBuilder took 668.96ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 36.1MB in the beginning and 39.2MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2023-08-29 16:41:13,942 INFO L158 Benchmark]: TraceAbstraction took 11332.05ms. Allocated memory was 88.1MB in the beginning and 226.5MB in the end (delta: 138.4MB). Free memory was 38.6MB in the beginning and 133.4MB in the end (delta: -94.8MB). Peak memory consumption was 121.2MB. Max. memory is 16.1GB. [2023-08-29 16:41:13,942 INFO L158 Benchmark]: Witness Printer took 39.12ms. Allocated memory is still 226.5MB. Free memory was 133.4MB in the beginning and 129.2MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2023-08-29 16:41:13,943 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 54.5MB. Free memory is still 32.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 873.02ms. Allocated memory is still 73.4MB. Free memory was 47.9MB in the beginning and 43.4MB in the end (delta: 4.6MB). Peak memory consumption was 27.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.94ms. Allocated memory is still 73.4MB. Free memory was 43.4MB in the beginning and 39.3MB in the end (delta: 4.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 56.41ms. Allocated memory is still 73.4MB. Free memory was 39.3MB in the beginning and 36.1MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 668.96ms. Allocated memory was 73.4MB in the beginning and 88.1MB in the end (delta: 14.7MB). Free memory was 36.1MB in the beginning and 39.2MB in the end (delta: -3.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 11332.05ms. Allocated memory was 88.1MB in the beginning and 226.5MB in the end (delta: 138.4MB). Free memory was 38.6MB in the beginning and 133.4MB in the end (delta: -94.8MB). Peak memory consumption was 121.2MB. Max. memory is 16.1GB. * Witness Printer took 39.12ms. Allocated memory is still 226.5MB. Free memory was 133.4MB in the beginning and 129.2MB in the end (delta: 4.2MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 6.4s, 272 PlacesBefore, 70 PlacesAfterwards, 289 TransitionsBefore, 74 TransitionsAfterwards, 16262 CoEnabledTransitionPairs, 10 FixpointIterations, 91 TrivialSequentialCompositions, 187 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 41 ConcurrentYvCompositions, 13 ChoiceCompositions, 335 TotalNumberOfCompositions, 47217 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25729, independent: 24924, independent conditional: 0, independent unconditional: 24924, dependent: 805, dependent conditional: 0, dependent unconditional: 805, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9538, independent: 9444, independent conditional: 0, independent unconditional: 9444, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25729, independent: 15480, independent conditional: 0, independent unconditional: 15480, dependent: 711, dependent conditional: 0, dependent unconditional: 711, unknown: 9538, unknown conditional: 0, unknown unconditional: 9538] , Statistics on independence cache: Total cache size (in pairs): 615, Positive cache size: 573, Positive conditional cache size: 0, Positive unconditional cache size: 573, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - PositiveResult [Line: 1699]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1700]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1777]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1778]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1783]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1784]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1790]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1792]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1793]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1743]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1771]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1748]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1772]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1756]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1764]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1725]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1758]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1752]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1759]: there are no data races For all program executions holds that there are no data races at this location - PositiveResult [Line: 1760]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 426 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.2s, OverallIterations: 12, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 964 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 505 mSDsluCounter, 50 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 158 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1694 IncrementalHoareTripleChecker+Invalid, 1852 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 158 mSolverCounterUnsat, 50 mSDtfsCounter, 1694 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=305occurred in iteration=7, InterpolantAutomatonStates: 41, 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, 1.1s InterpolantComputationTime, 117 NumberOfCodeBlocks, 117 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 105 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 4/4 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 - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 16:41:13,961 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 Result: TRUE