./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 BEFORE --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 BEFORE --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-31 19:10:46,510 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-31 19:10:46,512 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-31 19:10:46,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-31 19:10:46,547 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-31 19:10:46,549 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-31 19:10:46,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-31 19:10:46,556 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-31 19:10:46,558 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-31 19:10:46,562 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-31 19:10:46,563 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-31 19:10:46,568 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-31 19:10:46,568 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-31 19:10:46,570 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-31 19:10:46,573 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-31 19:10:46,574 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-31 19:10:46,577 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-31 19:10:46,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-31 19:10:46,581 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-31 19:10:46,586 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-31 19:10:46,588 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-31 19:10:46,589 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-31 19:10:46,589 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-31 19:10:46,591 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-31 19:10:46,598 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-31 19:10:46,599 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-31 19:10:46,599 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-31 19:10:46,601 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-31 19:10:46,601 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-31 19:10:46,602 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-31 19:10:46,603 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-31 19:10:46,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-31 19:10:46,609 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-31 19:10:46,610 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-31 19:10:46,611 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-31 19:10:46,611 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-31 19:10:46,612 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-31 19:10:46,612 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-31 19:10:46,612 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-31 19:10:46,613 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-31 19:10:46,614 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-31 19:10:46,615 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-31 19:10:46,651 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-31 19:10:46,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-31 19:10:46,652 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-31 19:10:46,653 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-31 19:10:46,653 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-31 19:10:46,654 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-31 19:10:46,654 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-31 19:10:46,654 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-31 19:10:46,655 INFO L138 SettingsManager]: * Use SBE=true [2023-08-31 19:10:46,655 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-31 19:10:46,656 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-31 19:10:46,656 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-31 19:10:46,656 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-31 19:10:46,656 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-31 19:10:46,656 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-31 19:10:46,656 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-31 19:10:46,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-31 19:10:46,657 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-31 19:10:46,657 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-31 19:10:46,657 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-31 19:10:46,657 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-31 19:10:46,658 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-31 19:10:46,658 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-31 19:10:46,658 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-31 19:10:46,658 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-31 19:10:46,658 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-31 19:10:46,659 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:10:46,659 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-31 19:10:46,659 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-31 19:10:46,659 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-31 19:10:46,659 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-31 19:10:46,660 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-31 19:10:46,660 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-31 19:10:46,660 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-31 19:10:46,660 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-31 19:10:46,660 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-31 19:10:46,661 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-31 19:10:46,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> BEFORE [2023-08-31 19:10:46,936 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-31 19:10:46,962 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-31 19:10:46,964 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-31 19:10:46,965 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-31 19:10:46,965 INFO L275 PluginConnector]: CDTParser initialized [2023-08-31 19:10:46,967 INFO L432 ainManager$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 [2023-08-31 19:10:48,231 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-31 19:10:48,566 INFO L351 CDTParser]: Found 1 translation units. [2023-08-31 19:10:48,567 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-31 19:10:48,591 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10200731a/da9ca4174af2412bacbca581109e5f7f/FLAG8472f367f [2023-08-31 19:10:48,610 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10200731a/da9ca4174af2412bacbca581109e5f7f [2023-08-31 19:10:48,612 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-31 19:10:48,614 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-31 19:10:48,618 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-31 19:10:48,618 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-31 19:10:48,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-31 19:10:48,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:10:48" (1/1) ... [2023-08-31 19:10:48,625 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6aa4988b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:48, skipping insertion in model container [2023-08-31 19:10:48,626 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.08 07:10:48" (1/1) ... [2023-08-31 19:10:48,632 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-31 19:10:48,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-31 19:10:49,238 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] [2023-08-31 19:10:49,305 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:10:49,318 INFO L203 MainTranslator]: Completed pre-run [2023-08-31 19:10:49,367 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] [2023-08-31 19:10:49,393 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-31 19:10:49,509 INFO L208 MainTranslator]: Completed translation [2023-08-31 19:10:49,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49 WrapperNode [2023-08-31 19:10:49,510 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-31 19:10:49,511 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-31 19:10:49,511 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-31 19:10:49,511 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-31 19:10:49,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,547 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,575 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 269 [2023-08-31 19:10:49,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-31 19:10:49,577 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-31 19:10:49,577 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-31 19:10:49,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-31 19:10:49,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,590 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,591 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,602 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,606 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,610 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,612 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,618 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-31 19:10:49,619 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-31 19:10:49,619 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-31 19:10:49,620 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-31 19:10:49,620 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (1/1) ... [2023-08-31 19:10:49,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-31 19:10:49,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-31 19:10:49,664 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-31 19:10:49,700 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-31 19:10:49,713 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-08-31 19:10:49,713 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-08-31 19:10:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-31 19:10:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-31 19:10:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-08-31 19:10:49,715 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-08-31 19:10:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-31 19:10:49,715 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-31 19:10:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-31 19:10:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-31 19:10:49,716 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-31 19:10:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-31 19:10:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-31 19:10:49,716 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-31 19:10:49,718 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-31 19:10:50,067 INFO L236 CfgBuilder]: Building ICFG [2023-08-31 19:10:50,069 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-31 19:10:50,481 INFO L277 CfgBuilder]: Performing block encoding [2023-08-31 19:10:50,491 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-31 19:10:50,491 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-31 19:10:50,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:10:50 BoogieIcfgContainer [2023-08-31 19:10:50,497 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-31 19:10:50,499 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-31 19:10:50,500 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-31 19:10:50,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-31 19:10:50,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.08 07:10:48" (1/3) ... [2023-08-31 19:10:50,504 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6634acc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:10:50, skipping insertion in model container [2023-08-31 19:10:50,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.08 07:10:49" (2/3) ... [2023-08-31 19:10:50,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6634acc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.08 07:10:50, skipping insertion in model container [2023-08-31 19:10:50,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:10:50" (3/3) ... [2023-08-31 19:10:50,506 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-08-31 19:10:50,513 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-31 19:10:50,523 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-31 19:10:50,523 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-31 19:10:50,523 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-31 19:10:50,637 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-31 19:10:50,689 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 419 transitions, 868 flow [2023-08-31 19:10:50,845 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-31 19:10:50,846 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 19:10:50,856 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. [2023-08-31 19:10:50,856 INFO L82 GeneralOperation]: Start removeDead. Operand has 389 places, 419 transitions, 868 flow [2023-08-31 19:10:50,864 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 264 transitions, 545 flow [2023-08-31 19:10:50,868 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:10:50,878 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 264 transitions, 545 flow [2023-08-31 19:10:50,880 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 264 transitions, 545 flow [2023-08-31 19:10:50,881 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 264 transitions, 545 flow [2023-08-31 19:10:50,950 INFO L130 PetriNetUnfolder]: 31/387 cut-off events. [2023-08-31 19:10:50,950 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 19:10:50,955 INFO L83 FinitePrefix]: Finished finitePrefix Result has 399 conditions, 387 events. 31/387 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 933 event pairs, 0 based on Foata normal form. 0/331 useless extension candidates. Maximal degree in co-relation 289. Up to 11 conditions per place. [2023-08-31 19:10:50,965 INFO L119 LiptonReduction]: Number of co-enabled transitions 16094 [2023-08-31 19:10:56,582 INFO L134 LiptonReduction]: Checked pairs total: 40149 [2023-08-31 19:10:56,583 INFO L136 LiptonReduction]: Total number of compositions: 286 [2023-08-31 19:10:56,594 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-31 19:10:56,600 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;@1ce8feba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:10:56,600 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-31 19:10:56,609 INFO L130 PetriNetUnfolder]: 7/57 cut-off events. [2023-08-31 19:10:56,609 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:10:56,609 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:10:56,610 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:10:56,610 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-31 19:10:56,614 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:10:56,615 INFO L85 PathProgramCache]: Analyzing trace with hash 1093231566, now seen corresponding path program 1 times [2023-08-31 19:10:56,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:10:56,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030549882] [2023-08-31 19:10:56,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:10:56,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:10:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:10:57,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:10:57,012 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:10:57,013 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030549882] [2023-08-31 19:10:57,013 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030549882] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:10:57,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:10:57,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:10:57,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543972372] [2023-08-31 19:10:57,016 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:10:57,023 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:10:57,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:10:57,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:10:57,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:10:57,090 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 705 [2023-08-31 19:10:57,096 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 63 transitions, 143 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) [2023-08-31 19:10:57,096 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:10:57,097 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 705 [2023-08-31 19:10:57,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:10:57,234 INFO L130 PetriNetUnfolder]: 239/527 cut-off events. [2023-08-31 19:10:57,234 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-31 19:10:57,236 INFO L83 FinitePrefix]: Finished finitePrefix Result has 923 conditions, 527 events. 239/527 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 2581 event pairs, 90 based on Foata normal form. 0/362 useless extension candidates. Maximal degree in co-relation 765. Up to 256 conditions per place. [2023-08-31 19:10:57,237 INFO L137 encePairwiseOnDemand]: 694/705 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2023-08-31 19:10:57,238 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 219 flow [2023-08-31 19:10:57,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:10:57,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:10:57,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1174 transitions. [2023-08-31 19:10:57,260 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5550827423167849 [2023-08-31 19:10:57,261 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1174 transitions. [2023-08-31 19:10:57,262 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1174 transitions. [2023-08-31 19:10:57,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:10:57,268 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1174 transitions. [2023-08-31 19:10:57,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.3333333333333) internal successors, (1174), 3 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:57,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:57,285 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 705.0) internal successors, (2820), 4 states have internal predecessors, (2820), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:10:57,287 INFO L175 Difference]: Start difference. First operand has 61 places, 63 transitions, 143 flow. Second operand 3 states and 1174 transitions. [2023-08-31 19:10:57,288 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 219 flow [2023-08-31 19:10:57,291 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 209 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-31 19:10:57,293 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2023-08-31 19:10:57,294 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=705, PETRI_DIFFERENCE_MINUEND_FLOW=119, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=57, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=54, PETRI_TRANSITIONS=0} [2023-08-31 19:10:57,298 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -7 predicate places. [2023-08-31 19:10:57,299 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2023-08-31 19:10:57,300 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) [2023-08-31 19:10:57,305 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-08-31 19:10:57,306 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-31 19:10:57,307 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-31 19:10:57,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-31 19:10:57,309 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-31 19:10:57,320 INFO L307 ceAbstractionStarter]: Result for error location InUseError was SAFE,SAFE,SAFE (1/2) [2023-08-31 19:10:57,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 419 transitions, 868 flow [2023-08-31 19:10:57,367 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-31 19:10:57,367 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 19:10:57,369 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. [2023-08-31 19:10:57,370 INFO L82 GeneralOperation]: Start removeDead. Operand has 389 places, 419 transitions, 868 flow [2023-08-31 19:10:57,373 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 289 transitions, 595 flow [2023-08-31 19:10:57,373 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-31 19:10:57,377 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 289 transitions, 595 flow [2023-08-31 19:10:57,377 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 289 transitions, 595 flow [2023-08-31 19:10:57,377 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 289 transitions, 595 flow [2023-08-31 19:10:57,441 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-31 19:10:57,441 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-31 19:10:57,443 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. [2023-08-31 19:10:57,452 INFO L119 LiptonReduction]: Number of co-enabled transitions 16262 [2023-08-31 19:11:03,047 INFO L134 LiptonReduction]: Checked pairs total: 43529 [2023-08-31 19:11:03,048 INFO L136 LiptonReduction]: Total number of compositions: 331 [2023-08-31 19:11:03,052 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-31 19:11:03,057 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;@1ce8feba, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-31 19:11:03,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-08-31 19:11:03,059 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-31 19:11:03,059 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-31 19:11:03,059 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:03,059 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-31 19:11:03,059 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:03,060 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1500, now seen corresponding path program 1 times [2023-08-31 19:11:03,060 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:03,060 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220382834] [2023-08-31 19:11:03,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:03,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:03,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:03,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:03,086 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:03,086 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220382834] [2023-08-31 19:11:03,086 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220382834] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:03,086 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:03,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-31 19:11:03,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2099321053] [2023-08-31 19:11:03,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:03,087 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-31 19:11:03,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:03,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-31 19:11:03,088 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-31 19:11:03,089 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 750 [2023-08-31 19:11:03,090 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) [2023-08-31 19:11:03,090 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:03,090 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 750 [2023-08-31 19:11:03,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:03,221 INFO L130 PetriNetUnfolder]: 582/1117 cut-off events. [2023-08-31 19:11:03,222 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-31 19:11:03,223 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 100. 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. [2023-08-31 19:11:03,227 INFO L137 encePairwiseOnDemand]: 737/750 looper letters, 32 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2023-08-31 19:11:03,227 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 203 flow [2023-08-31 19:11:03,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-31 19:11:03,228 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-31 19:11:03,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 823 transitions. [2023-08-31 19:11:03,230 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5486666666666666 [2023-08-31 19:11:03,230 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 823 transitions. [2023-08-31 19:11:03,230 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 823 transitions. [2023-08-31 19:11:03,231 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:03,231 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 823 transitions. [2023-08-31 19:11:03,232 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) [2023-08-31 19:11:03,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 750.0) internal successors, (2250), 3 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:03,237 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 750.0) internal successors, (2250), 3 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:03,237 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 165 flow. Second operand 2 states and 823 transitions. [2023-08-31 19:11:03,237 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 203 flow [2023-08-31 19:11:03,240 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:11:03,242 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 135 flow [2023-08-31 19:11:03,242 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, 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} [2023-08-31 19:11:03,242 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -13 predicate places. [2023-08-31 19:11:03,243 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 135 flow [2023-08-31 19:11:03,243 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) [2023-08-31 19:11:03,243 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:03,244 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-31 19:11:03,244 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-31 19:11:03,244 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:03,245 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:03,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1141407089, now seen corresponding path program 1 times [2023-08-31 19:11:03,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:03,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829732946] [2023-08-31 19:11:03,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:03,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:03,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:03,317 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:03,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:03,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829732946] [2023-08-31 19:11:03,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829732946] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:03,318 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:03,318 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:11:03,318 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257738117] [2023-08-31 19:11:03,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:03,319 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:03,319 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:03,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:03,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:03,389 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 750 [2023-08-31 19:11:03,390 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) [2023-08-31 19:11:03,390 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:03,391 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 750 [2023-08-31 19:11:03,391 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:03,562 INFO L130 PetriNetUnfolder]: 912/1673 cut-off events. [2023-08-31 19:11:03,563 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-31 19:11:03,565 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 9196 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. [2023-08-31 19:11:03,572 INFO L137 encePairwiseOnDemand]: 745/750 looper letters, 44 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2023-08-31 19:11:03,573 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 253 flow [2023-08-31 19:11:03,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:03,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:03,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1156 transitions. [2023-08-31 19:11:03,576 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5137777777777778 [2023-08-31 19:11:03,576 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1156 transitions. [2023-08-31 19:11:03,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1156 transitions. [2023-08-31 19:11:03,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:03,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1156 transitions. [2023-08-31 19:11:03,579 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) [2023-08-31 19:11:03,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:03,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:03,585 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 135 flow. Second operand 3 states and 1156 transitions. [2023-08-31 19:11:03,585 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 253 flow [2023-08-31 19:11:03,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 72 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:11:03,588 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 161 flow [2023-08-31 19:11:03,588 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, 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} [2023-08-31 19:11:03,591 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -10 predicate places. [2023-08-31 19:11:03,591 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 161 flow [2023-08-31 19:11:03,593 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) [2023-08-31 19:11:03,595 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:03,595 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:03,596 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-31 19:11:03,599 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:03,600 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:03,600 INFO L85 PathProgramCache]: Analyzing trace with hash 42589390, now seen corresponding path program 1 times [2023-08-31 19:11:03,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:03,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096918850] [2023-08-31 19:11:03,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:03,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:03,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:03,679 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:03,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:03,680 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096918850] [2023-08-31 19:11:03,680 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1096918850] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:03,680 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:03,680 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:11:03,680 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1830071234] [2023-08-31 19:11:03,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:03,681 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:03,681 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:03,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:03,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:03,691 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 750 [2023-08-31 19:11:03,693 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) [2023-08-31 19:11:03,693 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:03,693 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 750 [2023-08-31 19:11:03,693 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:03,825 INFO L130 PetriNetUnfolder]: 652/1238 cut-off events. [2023-08-31 19:11:03,825 INFO L131 PetriNetUnfolder]: For 83/124 co-relation queries the response was YES. [2023-08-31 19:11:03,827 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 103. Compared 6707 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. [2023-08-31 19:11:03,832 INFO L137 encePairwiseOnDemand]: 747/750 looper letters, 32 selfloop transitions, 0 changer transitions 2/65 dead transitions. [2023-08-31 19:11:03,832 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 65 transitions, 231 flow [2023-08-31 19:11:03,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:03,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:03,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1186 transitions. [2023-08-31 19:11:03,835 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5271111111111111 [2023-08-31 19:11:03,835 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1186 transitions. [2023-08-31 19:11:03,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1186 transitions. [2023-08-31 19:11:03,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:03,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1186 transitions. [2023-08-31 19:11:03,838 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) [2023-08-31 19:11:03,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:03,843 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:03,844 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 161 flow. Second operand 3 states and 1186 transitions. [2023-08-31 19:11:03,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 65 transitions, 231 flow [2023-08-31 19:11:03,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:11:03,849 INFO L231 Difference]: Finished difference. Result has 62 places, 63 transitions, 159 flow [2023-08-31 19:11:03,849 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, 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} [2023-08-31 19:11:03,852 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -8 predicate places. [2023-08-31 19:11:03,852 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 63 transitions, 159 flow [2023-08-31 19:11:03,853 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) [2023-08-31 19:11:03,853 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:03,853 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:03,853 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-31 19:11:03,853 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_usbErr10ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:03,854 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:03,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1675991110, now seen corresponding path program 1 times [2023-08-31 19:11:03,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:03,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698181263] [2023-08-31 19:11:03,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:03,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:03,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:03,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:03,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:03,909 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698181263] [2023-08-31 19:11:03,909 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698181263] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:03,909 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:03,909 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:11:03,910 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707053647] [2023-08-31 19:11:03,910 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:03,910 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:03,910 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:03,911 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:03,911 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:03,957 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 750 [2023-08-31 19:11:03,959 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) [2023-08-31 19:11:03,959 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:03,959 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 750 [2023-08-31 19:11:03,959 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:04,155 INFO L130 PetriNetUnfolder]: 1229/2073 cut-off events. [2023-08-31 19:11:04,156 INFO L131 PetriNetUnfolder]: For 278/327 co-relation queries the response was YES. [2023-08-31 19:11:04,158 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 103. Compared 10470 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. [2023-08-31 19:11:04,166 INFO L137 encePairwiseOnDemand]: 737/750 looper letters, 65 selfloop transitions, 12 changer transitions 0/96 dead transitions. [2023-08-31 19:11:04,167 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 96 transitions, 396 flow [2023-08-31 19:11:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:04,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:04,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1146 transitions. [2023-08-31 19:11:04,170 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5093333333333333 [2023-08-31 19:11:04,170 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1146 transitions. [2023-08-31 19:11:04,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1146 transitions. [2023-08-31 19:11:04,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:04,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1146 transitions. [2023-08-31 19:11:04,174 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) [2023-08-31 19:11:04,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:04,180 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:04,180 INFO L175 Difference]: Start difference. First operand has 62 places, 63 transitions, 159 flow. Second operand 3 states and 1146 transitions. [2023-08-31 19:11:04,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 96 transitions, 396 flow [2023-08-31 19:11:04,183 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 96 transitions, 388 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-31 19:11:04,187 INFO L231 Difference]: Finished difference. Result has 64 places, 73 transitions, 257 flow [2023-08-31 19:11:04,187 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, 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} [2023-08-31 19:11:04,190 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2023-08-31 19:11:04,190 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 73 transitions, 257 flow [2023-08-31 19:11:04,191 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) [2023-08-31 19:11:04,191 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:04,191 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:04,191 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-31 19:11:04,191 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:04,192 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:04,192 INFO L85 PathProgramCache]: Analyzing trace with hash 207378194, now seen corresponding path program 1 times [2023-08-31 19:11:04,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:04,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330964075] [2023-08-31 19:11:04,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:04,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:04,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:04,257 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:04,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:04,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330964075] [2023-08-31 19:11:04,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330964075] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:04,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:04,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:11:04,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [742129724] [2023-08-31 19:11:04,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:04,259 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:04,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:04,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:04,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:04,319 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 750 [2023-08-31 19:11:04,321 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 73 transitions, 257 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) [2023-08-31 19:11:04,321 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:04,321 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 750 [2023-08-31 19:11:04,321 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:04,515 INFO L130 PetriNetUnfolder]: 1104/1918 cut-off events. [2023-08-31 19:11:04,515 INFO L131 PetriNetUnfolder]: For 919/989 co-relation queries the response was YES. [2023-08-31 19:11:04,519 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4568 conditions, 1918 events. 1104/1918 cut-off events. For 919/989 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 9971 event pairs, 563 based on Foata normal form. 15/1356 useless extension candidates. Maximal degree in co-relation 4560. Up to 1488 conditions per place. [2023-08-31 19:11:04,527 INFO L137 encePairwiseOnDemand]: 743/750 looper letters, 59 selfloop transitions, 10 changer transitions 0/96 dead transitions. [2023-08-31 19:11:04,527 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 96 transitions, 462 flow [2023-08-31 19:11:04,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:04,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:04,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-08-31 19:11:04,530 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168888888888888 [2023-08-31 19:11:04,530 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-08-31 19:11:04,531 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-08-31 19:11:04,531 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:04,531 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-08-31 19:11:04,534 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) [2023-08-31 19:11:04,538 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:04,539 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:04,540 INFO L175 Difference]: Start difference. First operand has 64 places, 73 transitions, 257 flow. Second operand 3 states and 1163 transitions. [2023-08-31 19:11:04,540 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 96 transitions, 462 flow [2023-08-31 19:11:04,543 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 96 transitions, 432 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:11:04,545 INFO L231 Difference]: Finished difference. Result has 65 places, 79 transitions, 301 flow [2023-08-31 19:11:04,545 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=301, PETRI_PLACES=65, PETRI_TRANSITIONS=79} [2023-08-31 19:11:04,545 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -5 predicate places. [2023-08-31 19:11:04,546 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 79 transitions, 301 flow [2023-08-31 19:11:04,546 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) [2023-08-31 19:11:04,547 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:04,547 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:04,547 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-31 19:11:04,547 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:04,547 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:04,548 INFO L85 PathProgramCache]: Analyzing trace with hash 504490563, now seen corresponding path program 1 times [2023-08-31 19:11:04,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:04,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2105961544] [2023-08-31 19:11:04,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:04,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:04,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:04,598 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:04,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:04,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2105961544] [2023-08-31 19:11:04,599 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2105961544] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:04,599 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:04,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:11:04,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839805763] [2023-08-31 19:11:04,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:04,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:04,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:04,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:04,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:04,616 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 750 [2023-08-31 19:11:04,617 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 79 transitions, 301 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) [2023-08-31 19:11:04,617 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:04,617 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 750 [2023-08-31 19:11:04,618 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:04,771 INFO L130 PetriNetUnfolder]: 902/1674 cut-off events. [2023-08-31 19:11:04,772 INFO L131 PetriNetUnfolder]: For 585/701 co-relation queries the response was YES. [2023-08-31 19:11:04,775 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3754 conditions, 1674 events. 902/1674 cut-off events. For 585/701 co-relation queries the response was YES. Maximal size of possible extension queue 97. Compared 9326 event pairs, 351 based on Foata normal form. 38/1181 useless extension candidates. Maximal degree in co-relation 3745. Up to 954 conditions per place. [2023-08-31 19:11:04,781 INFO L137 encePairwiseOnDemand]: 743/750 looper letters, 43 selfloop transitions, 6 changer transitions 0/91 dead transitions. [2023-08-31 19:11:04,781 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 91 transitions, 426 flow [2023-08-31 19:11:04,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:04,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-08-31 19:11:04,784 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5168888888888888 [2023-08-31 19:11:04,784 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-08-31 19:11:04,784 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-08-31 19:11:04,785 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:04,785 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-08-31 19:11:04,787 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) [2023-08-31 19:11:04,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:04,791 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:04,791 INFO L175 Difference]: Start difference. First operand has 65 places, 79 transitions, 301 flow. Second operand 3 states and 1163 transitions. [2023-08-31 19:11:04,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 91 transitions, 426 flow [2023-08-31 19:11:04,793 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 91 transitions, 415 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-31 19:11:04,795 INFO L231 Difference]: Finished difference. Result has 68 places, 82 transitions, 329 flow [2023-08-31 19:11:04,795 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=291, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=329, PETRI_PLACES=68, PETRI_TRANSITIONS=82} [2023-08-31 19:11:04,796 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2023-08-31 19:11:04,796 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 82 transitions, 329 flow [2023-08-31 19:11:04,796 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) [2023-08-31 19:11:04,796 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:04,797 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:04,797 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-31 19:11:04,797 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:04,797 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:04,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1519024663, now seen corresponding path program 1 times [2023-08-31 19:11:04,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:04,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122456440] [2023-08-31 19:11:04,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:04,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:04,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:05,103 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:05,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:05,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122456440] [2023-08-31 19:11:05,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2122456440] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:05,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:05,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:11:05,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357018771] [2023-08-31 19:11:05,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:05,104 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:11:05,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:05,105 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:11:05,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:11:05,226 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 750 [2023-08-31 19:11:05,228 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 82 transitions, 329 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) [2023-08-31 19:11:05,228 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:05,229 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 750 [2023-08-31 19:11:05,229 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:05,698 INFO L130 PetriNetUnfolder]: 2032/3288 cut-off events. [2023-08-31 19:11:05,698 INFO L131 PetriNetUnfolder]: For 1142/1420 co-relation queries the response was YES. [2023-08-31 19:11:05,703 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7777 conditions, 3288 events. 2032/3288 cut-off events. For 1142/1420 co-relation queries the response was YES. Maximal size of possible extension queue 175. Compared 18433 event pairs, 439 based on Foata normal form. 91/2545 useless extension candidates. Maximal degree in co-relation 7767. Up to 1110 conditions per place. [2023-08-31 19:11:05,716 INFO L137 encePairwiseOnDemand]: 745/750 looper letters, 157 selfloop transitions, 4 changer transitions 1/197 dead transitions. [2023-08-31 19:11:05,717 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 72 places, 197 transitions, 1125 flow [2023-08-31 19:11:05,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:11:05,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:11:05,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2417 transitions. [2023-08-31 19:11:05,722 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5371111111111111 [2023-08-31 19:11:05,722 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2417 transitions. [2023-08-31 19:11:05,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2417 transitions. [2023-08-31 19:11:05,724 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:05,724 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2417 transitions. [2023-08-31 19:11:05,728 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) [2023-08-31 19:11:05,734 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 750.0) internal successors, (5250), 7 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:05,735 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 750.0) internal successors, (5250), 7 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:05,736 INFO L175 Difference]: Start difference. First operand has 68 places, 82 transitions, 329 flow. Second operand 6 states and 2417 transitions. [2023-08-31 19:11:05,736 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 72 places, 197 transitions, 1125 flow [2023-08-31 19:11:05,739 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 197 transitions, 1073 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:11:05,741 INFO L231 Difference]: Finished difference. Result has 70 places, 80 transitions, 319 flow [2023-08-31 19:11:05,741 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=315, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=81, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=319, PETRI_PLACES=70, PETRI_TRANSITIONS=80} [2023-08-31 19:11:05,742 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, 0 predicate places. [2023-08-31 19:11:05,742 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 80 transitions, 319 flow [2023-08-31 19:11:05,743 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) [2023-08-31 19:11:05,743 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:05,743 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:05,743 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-31 19:11:05,744 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:05,744 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:05,744 INFO L85 PathProgramCache]: Analyzing trace with hash 653001814, now seen corresponding path program 1 times [2023-08-31 19:11:05,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:05,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294743042] [2023-08-31 19:11:05,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:05,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:05,793 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:05,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:05,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294743042] [2023-08-31 19:11:05,794 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294743042] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:05,794 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:05,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:11:05,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68928517] [2023-08-31 19:11:05,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:05,794 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:05,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:05,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:05,795 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:05,800 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 750 [2023-08-31 19:11:05,801 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 80 transitions, 319 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) [2023-08-31 19:11:05,801 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:05,801 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 750 [2023-08-31 19:11:05,801 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:06,026 INFO L130 PetriNetUnfolder]: 1412/2607 cut-off events. [2023-08-31 19:11:06,027 INFO L131 PetriNetUnfolder]: For 864/1048 co-relation queries the response was YES. [2023-08-31 19:11:06,032 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6117 conditions, 2607 events. 1412/2607 cut-off events. For 864/1048 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 15810 event pairs, 486 based on Foata normal form. 79/1993 useless extension candidates. Maximal degree in co-relation 6107. Up to 1144 conditions per place. [2023-08-31 19:11:06,045 INFO L137 encePairwiseOnDemand]: 748/750 looper letters, 59 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2023-08-31 19:11:06,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 102 transitions, 522 flow [2023-08-31 19:11:06,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:06,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:06,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1206 transitions. [2023-08-31 19:11:06,049 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.536 [2023-08-31 19:11:06,049 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1206 transitions. [2023-08-31 19:11:06,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1206 transitions. [2023-08-31 19:11:06,050 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:06,050 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1206 transitions. [2023-08-31 19:11:06,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 402.0) internal successors, (1206), 3 states have internal predecessors, (1206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,063 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,063 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,064 INFO L175 Difference]: Start difference. First operand has 70 places, 80 transitions, 319 flow. Second operand 3 states and 1206 transitions. [2023-08-31 19:11:06,064 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 102 transitions, 522 flow [2023-08-31 19:11:06,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-31 19:11:06,068 INFO L231 Difference]: Finished difference. Result has 67 places, 79 transitions, 313 flow [2023-08-31 19:11:06,068 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=309, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=80, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=313, PETRI_PLACES=67, PETRI_TRANSITIONS=79} [2023-08-31 19:11:06,069 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2023-08-31 19:11:06,069 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 79 transitions, 313 flow [2023-08-31 19:11:06,069 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) [2023-08-31 19:11:06,069 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:06,070 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:06,070 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-31 19:11:06,070 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr9ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:06,070 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:06,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1738931046, now seen corresponding path program 1 times [2023-08-31 19:11:06,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:06,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302907356] [2023-08-31 19:11:06,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:06,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:06,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:06,137 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:06,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:06,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302907356] [2023-08-31 19:11:06,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [302907356] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:06,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:06,138 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:11:06,138 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094352549] [2023-08-31 19:11:06,138 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:06,138 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:06,139 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:06,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:06,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:06,143 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 385 out of 750 [2023-08-31 19:11:06,144 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 79 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,144 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:06,144 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 385 of 750 [2023-08-31 19:11:06,145 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:06,356 INFO L130 PetriNetUnfolder]: 1381/2668 cut-off events. [2023-08-31 19:11:06,357 INFO L131 PetriNetUnfolder]: For 1048/1191 co-relation queries the response was YES. [2023-08-31 19:11:06,362 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6331 conditions, 2668 events. 1381/2668 cut-off events. For 1048/1191 co-relation queries the response was YES. Maximal size of possible extension queue 158. Compared 16667 event pairs, 412 based on Foata normal form. 55/2102 useless extension candidates. Maximal degree in co-relation 6320. Up to 1029 conditions per place. [2023-08-31 19:11:06,370 INFO L137 encePairwiseOnDemand]: 747/750 looper letters, 63 selfloop transitions, 3 changer transitions 0/106 dead transitions. [2023-08-31 19:11:06,370 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 106 transitions, 545 flow [2023-08-31 19:11:06,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:06,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:06,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1208 transitions. [2023-08-31 19:11:06,374 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5368888888888889 [2023-08-31 19:11:06,374 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1208 transitions. [2023-08-31 19:11:06,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1208 transitions. [2023-08-31 19:11:06,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:06,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1208 transitions. [2023-08-31 19:11:06,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 402.6666666666667) internal successors, (1208), 3 states have internal predecessors, (1208), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,380 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,380 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,380 INFO L175 Difference]: Start difference. First operand has 67 places, 79 transitions, 313 flow. Second operand 3 states and 1208 transitions. [2023-08-31 19:11:06,381 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 106 transitions, 545 flow [2023-08-31 19:11:06,385 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 106 transitions, 538 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:11:06,386 INFO L231 Difference]: Finished difference. Result has 69 places, 81 transitions, 334 flow [2023-08-31 19:11:06,387 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=334, PETRI_PLACES=69, PETRI_TRANSITIONS=81} [2023-08-31 19:11:06,387 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -1 predicate places. [2023-08-31 19:11:06,387 INFO L495 AbstractCegarLoop]: Abstraction has has 69 places, 81 transitions, 334 flow [2023-08-31 19:11:06,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.0) internal successors, (1164), 3 states have internal predecessors, (1164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,388 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:06,388 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:06,388 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-31 19:11:06,388 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:06,390 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:06,390 INFO L85 PathProgramCache]: Analyzing trace with hash -1712116833, now seen corresponding path program 1 times [2023-08-31 19:11:06,390 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:06,390 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654199822] [2023-08-31 19:11:06,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:06,390 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:06,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:06,449 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:06,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:06,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654199822] [2023-08-31 19:11:06,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654199822] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:06,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:06,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-31 19:11:06,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569552297] [2023-08-31 19:11:06,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:06,451 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:06,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:06,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:06,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:06,469 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 750 [2023-08-31 19:11:06,470 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 81 transitions, 334 flow. Second operand has 3 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,470 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:06,470 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 750 [2023-08-31 19:11:06,470 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:06,570 INFO L130 PetriNetUnfolder]: 330/715 cut-off events. [2023-08-31 19:11:06,571 INFO L131 PetriNetUnfolder]: For 221/256 co-relation queries the response was YES. [2023-08-31 19:11:06,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1589 conditions, 715 events. 330/715 cut-off events. For 221/256 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3402 event pairs, 102 based on Foata normal form. 33/574 useless extension candidates. Maximal degree in co-relation 1578. Up to 300 conditions per place. [2023-08-31 19:11:06,574 INFO L137 encePairwiseOnDemand]: 746/750 looper letters, 38 selfloop transitions, 2 changer transitions 4/64 dead transitions. [2023-08-31 19:11:06,574 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 64 transitions, 294 flow [2023-08-31 19:11:06,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:06,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:06,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1167 transitions. [2023-08-31 19:11:06,578 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5186666666666667 [2023-08-31 19:11:06,578 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1167 transitions. [2023-08-31 19:11:06,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1167 transitions. [2023-08-31 19:11:06,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:06,579 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1167 transitions. [2023-08-31 19:11:06,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 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) [2023-08-31 19:11:06,584 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,585 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,585 INFO L175 Difference]: Start difference. First operand has 69 places, 81 transitions, 334 flow. Second operand 3 states and 1167 transitions. [2023-08-31 19:11:06,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 64 transitions, 294 flow [2023-08-31 19:11:06,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 250 flow, removed 8 selfloop flow, removed 8 redundant places. [2023-08-31 19:11:06,589 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 144 flow [2023-08-31 19:11:06,590 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=148, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=144, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2023-08-31 19:11:06,591 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -12 predicate places. [2023-08-31 19:11:06,592 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 144 flow [2023-08-31 19:11:06,592 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 378.3333333333333) internal successors, (1135), 3 states have internal predecessors, (1135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:06,592 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:06,592 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:06,593 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-31 19:11:06,593 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:06,593 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:06,593 INFO L85 PathProgramCache]: Analyzing trace with hash -492397949, now seen corresponding path program 1 times [2023-08-31 19:11:06,593 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:06,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131805751] [2023-08-31 19:11:06,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:06,594 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:06,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:06,928 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-31 19:11:06,929 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:06,929 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131805751] [2023-08-31 19:11:06,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131805751] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:06,929 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:06,929 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-31 19:11:06,929 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488721191] [2023-08-31 19:11:06,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:06,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-31 19:11:06,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:06,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-31 19:11:06,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-31 19:11:07,054 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 750 [2023-08-31 19:11:07,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 144 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) [2023-08-31 19:11:07,057 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:07,057 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 750 [2023-08-31 19:11:07,057 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:07,294 INFO L130 PetriNetUnfolder]: 831/1336 cut-off events. [2023-08-31 19:11:07,294 INFO L131 PetriNetUnfolder]: For 209/232 co-relation queries the response was YES. [2023-08-31 19:11:07,296 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2852 conditions, 1336 events. 831/1336 cut-off events. For 209/232 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5697 event pairs, 226 based on Foata normal form. 1/963 useless extension candidates. Maximal degree in co-relation 2844. Up to 704 conditions per place. [2023-08-31 19:11:07,298 INFO L137 encePairwiseOnDemand]: 745/750 looper letters, 74 selfloop transitions, 4 changer transitions 5/98 dead transitions. [2023-08-31 19:11:07,298 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 420 flow [2023-08-31 19:11:07,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-31 19:11:07,299 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-31 19:11:07,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2023-08-31 19:11:07,304 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.52 [2023-08-31 19:11:07,304 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2023-08-31 19:11:07,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2023-08-31 19:11:07,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:07,306 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2023-08-31 19:11:07,309 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) [2023-08-31 19:11:07,315 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 750.0) internal successors, (5250), 7 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:07,315 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 750.0) internal successors, (5250), 7 states have internal predecessors, (5250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:07,316 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 144 flow. Second operand 6 states and 2340 transitions. [2023-08-31 19:11:07,316 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 420 flow [2023-08-31 19:11:07,317 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 98 transitions, 414 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-31 19:11:07,318 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 167 flow [2023-08-31 19:11:07,319 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=138, 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=167, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2023-08-31 19:11:07,319 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2023-08-31 19:11:07,319 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 167 flow [2023-08-31 19:11:07,320 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) [2023-08-31 19:11:07,320 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-31 19:11:07,320 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] [2023-08-31 19:11:07,320 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-31 19:11:07,321 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-31 19:11:07,321 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-31 19:11:07,321 INFO L85 PathProgramCache]: Analyzing trace with hash 1360695679, now seen corresponding path program 1 times [2023-08-31 19:11:07,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-31 19:11:07,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293995902] [2023-08-31 19:11:07,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-31 19:11:07,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-31 19:11:07,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-31 19:11:07,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-31 19:11:07,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-31 19:11:07,378 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293995902] [2023-08-31 19:11:07,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [293995902] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-31 19:11:07,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-31 19:11:07,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-31 19:11:07,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527494029] [2023-08-31 19:11:07,379 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-31 19:11:07,380 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-31 19:11:07,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-31 19:11:07,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-31 19:11:07,381 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-31 19:11:07,453 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 750 [2023-08-31 19:11:07,456 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 167 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) [2023-08-31 19:11:07,456 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-31 19:11:07,456 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 750 [2023-08-31 19:11:07,456 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-31 19:11:07,556 INFO L130 PetriNetUnfolder]: 502/968 cut-off events. [2023-08-31 19:11:07,556 INFO L131 PetriNetUnfolder]: For 179/206 co-relation queries the response was YES. [2023-08-31 19:11:07,558 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2194 conditions, 968 events. 502/968 cut-off events. For 179/206 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4245 event pairs, 328 based on Foata normal form. 4/852 useless extension candidates. Maximal degree in co-relation 2183. Up to 785 conditions per place. [2023-08-31 19:11:07,559 INFO L137 encePairwiseOnDemand]: 748/750 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-08-31 19:11:07,559 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 235 flow [2023-08-31 19:11:07,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-31 19:11:07,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-31 19:11:07,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2023-08-31 19:11:07,562 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5053333333333333 [2023-08-31 19:11:07,563 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2023-08-31 19:11:07,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2023-08-31 19:11:07,563 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-31 19:11:07,563 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2023-08-31 19:11:07,565 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) [2023-08-31 19:11:07,568 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:07,569 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 750.0) internal successors, (3000), 4 states have internal predecessors, (3000), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-31 19:11:07,569 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 167 flow. Second operand 3 states and 1137 transitions. [2023-08-31 19:11:07,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 235 flow [2023-08-31 19:11:07,571 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 235 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-31 19:11:07,571 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-31 19:11:07,571 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=750, PETRI_DIFFERENCE_MINUEND_FLOW=165, 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} [2023-08-31 19:11:07,572 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2023-08-31 19:11:07,572 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-31 19:11:07,573 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) [2023-08-31 19:11:07,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (32 of 33 remaining) [2023-08-31 19:11:07,573 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-08-31 19:11:07,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-08-31 19:11:07,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-08-31 19:11:07,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-08-31 19:11:07,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-08-31 19:11:07,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-08-31 19:11:07,574 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-08-31 19:11:07,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-08-31 19:11:07,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-08-31 19:11:07,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-08-31 19:11:07,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-08-31 19:11:07,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-08-31 19:11:07,575 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-08-31 19:11:07,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-08-31 19:11:07,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-08-31 19:11:07,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-08-31 19:11:07,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-08-31 19:11:07,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-08-31 19:11:07,576 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-08-31 19:11:07,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-08-31 19:11:07,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-08-31 19:11:07,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-08-31 19:11:07,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-08-31 19:11:07,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-08-31 19:11:07,577 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-08-31 19:11:07,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-08-31 19:11:07,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-08-31 19:11:07,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-08-31 19:11:07,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-08-31 19:11:07,578 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-08-31 19:11:07,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-08-31 19:11:07,579 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-08-31 19:11:07,579 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-31 19:11:07,579 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-31 19:11:07,580 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (2/2) [2023-08-31 19:11:07,582 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-31 19:11:07,582 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-31 19:11:07,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.08 07:11:07 BasicIcfg [2023-08-31 19:11:07,586 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-31 19:11:07,586 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-31 19:11:07,586 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-31 19:11:07,586 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-31 19:11:07,587 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.08 07:10:50" (3/4) ... [2023-08-31 19:11:07,589 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-31 19:11:07,593 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-08-31 19:11:07,594 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-08-31 19:11:07,598 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-31 19:11:07,598 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-31 19:11:07,599 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-31 19:11:07,599 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-31 19:11:07,630 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-31 19:11:07,630 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-31 19:11:07,631 INFO L158 Benchmark]: Toolchain (without parser) took 19017.21ms. Allocated memory was 83.9MB in the beginning and 394.3MB in the end (delta: 310.4MB). Free memory was 57.9MB in the beginning and 253.4MB in the end (delta: -195.6MB). Peak memory consumption was 117.1MB. Max. memory is 16.1GB. [2023-08-31 19:11:07,631 INFO L158 Benchmark]: CDTParser took 0.39ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. [2023-08-31 19:11:07,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 892.05ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 45.0MB in the end (delta: 12.6MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2023-08-31 19:11:07,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 65.51ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 41.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:11:07,632 INFO L158 Benchmark]: Boogie Preprocessor took 41.91ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 38.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:11:07,632 INFO L158 Benchmark]: RCFGBuilder took 877.58ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 38.0MB in the beginning and 51.6MB in the end (delta: -13.6MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. [2023-08-31 19:11:07,634 INFO L158 Benchmark]: TraceAbstraction took 17086.83ms. Allocated memory was 102.8MB in the beginning and 394.3MB in the end (delta: 291.5MB). Free memory was 51.1MB in the beginning and 256.6MB in the end (delta: -205.5MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. [2023-08-31 19:11:07,634 INFO L158 Benchmark]: Witness Printer took 44.39ms. Allocated memory is still 394.3MB. Free memory was 256.6MB in the beginning and 253.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-31 19:11:07,635 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.39ms. Allocated memory is still 60.8MB. Free memory is still 38.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 892.05ms. Allocated memory is still 83.9MB. Free memory was 57.6MB in the beginning and 45.0MB in the end (delta: 12.6MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 65.51ms. Allocated memory is still 83.9MB. Free memory was 45.0MB in the beginning and 41.0MB in the end (delta: 4.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.91ms. Allocated memory is still 83.9MB. Free memory was 41.0MB in the beginning and 38.0MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 877.58ms. Allocated memory was 83.9MB in the beginning and 102.8MB in the end (delta: 18.9MB). Free memory was 38.0MB in the beginning and 51.6MB in the end (delta: -13.6MB). Peak memory consumption was 8.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17086.83ms. Allocated memory was 102.8MB in the beginning and 394.3MB in the end (delta: 291.5MB). Free memory was 51.1MB in the beginning and 256.6MB in the end (delta: -205.5MB). Peak memory consumption was 84.4MB. Max. memory is 16.1GB. * Witness Printer took 44.39ms. Allocated memory is still 394.3MB. Free memory was 256.6MB in the beginning and 253.4MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 249 PlacesBefore, 61 PlacesAfterwards, 264 TransitionsBefore, 63 TransitionsAfterwards, 16094 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 42 ConcurrentYvCompositions, 13 ChoiceCompositions, 286 TotalNumberOfCompositions, 40149 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21985, independent: 21406, independent conditional: 0, independent unconditional: 21406, dependent: 579, dependent conditional: 0, dependent unconditional: 579, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9540, independent: 9452, independent conditional: 0, independent unconditional: 9452, dependent: 88, dependent conditional: 0, dependent unconditional: 88, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21985, independent: 11954, independent conditional: 0, independent unconditional: 11954, dependent: 491, dependent conditional: 0, dependent unconditional: 491, unknown: 9540, unknown conditional: 0, unknown unconditional: 9540] , Statistics on independence cache: Total cache size (in pairs): 559, Positive cache size: 520, Positive conditional cache size: 0, Positive unconditional cache size: 520, Negative cache size: 39, Negative conditional cache size: 0, Negative unconditional cache size: 39, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.7s, 272 PlacesBefore, 70 PlacesAfterwards, 289 TransitionsBefore, 74 TransitionsAfterwards, 16262 CoEnabledTransitionPairs, 8 FixpointIterations, 85 TrivialSequentialCompositions, 189 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 42 ConcurrentYvCompositions, 13 ChoiceCompositions, 331 TotalNumberOfCompositions, 43529 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 21897, independent: 21236, independent conditional: 0, independent unconditional: 21236, dependent: 661, dependent conditional: 0, dependent unconditional: 661, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9370, independent: 9285, independent conditional: 0, independent unconditional: 9285, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 21897, independent: 11951, independent conditional: 0, independent unconditional: 11951, dependent: 576, dependent conditional: 0, dependent unconditional: 576, unknown: 9370, unknown conditional: 0, unknown unconditional: 9370] , Statistics on independence cache: Total cache size (in pairs): 510, Positive cache size: 468, Positive conditional cache size: 0, Positive unconditional cache size: 468, 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: 1760]: 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: 1725]: 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: 1756]: 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: 1784]: 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: 1748]: 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: 1778]: 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: 1764]: 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: 1777]: 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: 1790]: 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: 1793]: there are no data races For all program executions holds that there are no data races at this location - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency 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: 6.6s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.9s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 15 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 74 IncrementalHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 15 mSolverCounterUnsat, 2 mSDtfsCounter, 74 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=143occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 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 - 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: 10.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 967 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 480 mSDsluCounter, 117 SdHoareTripleChecker+Invalid, 1.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 158 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1723 IncrementalHoareTripleChecker+Invalid, 1881 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 158 mSolverCounterUnsat, 117 mSDtfsCounter, 1723 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=334occurred in iteration=9, 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, 1.0s InterpolantComputationTime, 121 NumberOfCodeBlocks, 121 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 109 ConstructedInterpolants, 0 QuantifiedInterpolants, 297 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 3/3 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! [2023-08-31 19:11:07,670 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