./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 AFTER --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version b8dbc81d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../../../trunk/examples/svcomp/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 AFTER --- Real Ultimate output --- This is Ultimate 0.2.3-?-b8dbc81 [2023-08-29 01:10:10,411 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-08-29 01:10:10,413 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-08-29 01:10:10,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-08-29 01:10:10,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-08-29 01:10:10,459 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-08-29 01:10:10,461 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-08-29 01:10:10,464 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-08-29 01:10:10,466 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-08-29 01:10:10,470 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-08-29 01:10:10,471 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-08-29 01:10:10,475 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-08-29 01:10:10,476 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-08-29 01:10:10,477 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-08-29 01:10:10,478 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-08-29 01:10:10,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-08-29 01:10:10,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-08-29 01:10:10,483 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-08-29 01:10:10,484 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-08-29 01:10:10,489 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-08-29 01:10:10,490 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-08-29 01:10:10,497 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-08-29 01:10:10,498 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-08-29 01:10:10,499 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-08-29 01:10:10,506 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-08-29 01:10:10,506 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-08-29 01:10:10,506 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-08-29 01:10:10,508 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-08-29 01:10:10,508 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-08-29 01:10:10,509 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-08-29 01:10:10,509 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-08-29 01:10:10,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-08-29 01:10:10,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-08-29 01:10:10,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-08-29 01:10:10,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-08-29 01:10:10,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-08-29 01:10:10,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-08-29 01:10:10,514 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-08-29 01:10:10,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-08-29 01:10:10,515 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-08-29 01:10:10,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-08-29 01:10:10,518 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DataRace-32bit-Automizer_Default.epf [2023-08-29 01:10:10,551 INFO L113 SettingsManager]: Loading preferences was successful [2023-08-29 01:10:10,551 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-08-29 01:10:10,552 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-08-29 01:10:10,553 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-08-29 01:10:10,553 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-08-29 01:10:10,554 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-08-29 01:10:10,554 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-08-29 01:10:10,554 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-08-29 01:10:10,555 INFO L138 SettingsManager]: * Use SBE=true [2023-08-29 01:10:10,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-08-29 01:10:10,556 INFO L138 SettingsManager]: * sizeof long=4 [2023-08-29 01:10:10,556 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2023-08-29 01:10:10,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-08-29 01:10:10,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-08-29 01:10:10,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-08-29 01:10:10,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-08-29 01:10:10,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-08-29 01:10:10,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-08-29 01:10:10,557 INFO L138 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-08-29 01:10:10,557 INFO L138 SettingsManager]: * sizeof long double=12 [2023-08-29 01:10:10,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-08-29 01:10:10,558 INFO L138 SettingsManager]: * Use constant arrays=true [2023-08-29 01:10:10,558 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-08-29 01:10:10,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-08-29 01:10:10,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-08-29 01:10:10,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-08-29 01:10:10,559 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:10:10,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-08-29 01:10:10,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-08-29 01:10:10,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-08-29 01:10:10,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-08-29 01:10:10,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-08-29 01:10:10,560 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-08-29 01:10:10,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-08-29 01:10:10,560 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-08-29 01:10:10,561 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-08-29 01:10:10,561 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-08-29 01:10:10,561 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9552a698db9701543deeff63aa990ab8fc4764b65dba5035623425bdf77554d Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-08-29 01:10:10,858 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-08-29 01:10:10,878 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-08-29 01:10:10,880 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-08-29 01:10:10,881 INFO L271 PluginConnector]: Initializing CDTParser... [2023-08-29 01:10:10,882 INFO L275 PluginConnector]: CDTParser initialized [2023-08-29 01:10:10,883 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-29 01:10:12,153 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-08-29 01:10:12,445 INFO L351 CDTParser]: Found 1 translation units. [2023-08-29 01:10:12,445 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-08-29 01:10:12,471 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6fbf65b/70fe022145cd4250a9d86b60baa589eb/FLAG0ef007cdf [2023-08-29 01:10:12,483 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c6fbf65b/70fe022145cd4250a9d86b60baa589eb [2023-08-29 01:10:12,485 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-08-29 01:10:12,487 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2023-08-29 01:10:12,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-08-29 01:10:12,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-08-29 01:10:12,492 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-08-29 01:10:12,492 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:10:12" (1/1) ... [2023-08-29 01:10:12,494 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@145349a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:12, skipping insertion in model container [2023-08-29 01:10:12,494 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.08 01:10:12" (1/1) ... [2023-08-29 01:10:12,499 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-08-29 01:10:12,554 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-08-29 01:10:13,071 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-08-29 01:10:13,133 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:10:13,147 INFO L203 MainTranslator]: Completed pre-run [2023-08-29 01:10:13,210 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-08-29 01:10:13,239 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-08-29 01:10:13,387 INFO L208 MainTranslator]: Completed translation [2023-08-29 01:10:13,388 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13 WrapperNode [2023-08-29 01:10:13,388 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-08-29 01:10:13,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-08-29 01:10:13,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-08-29 01:10:13,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-08-29 01:10:13,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,485 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 269 [2023-08-29 01:10:13,485 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-08-29 01:10:13,486 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-08-29 01:10:13,487 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-08-29 01:10:13,487 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-08-29 01:10:13,494 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,495 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,509 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,517 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,552 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,554 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,567 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-08-29 01:10:13,568 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-08-29 01:10:13,568 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-08-29 01:10:13,568 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-08-29 01:10:13,569 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (1/1) ... [2023-08-29 01:10:13,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-08-29 01:10:13,592 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-08-29 01:10:13,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-08-29 01:10:13,643 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-08-29 01:10:13,669 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-08-29 01:10:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-08-29 01:10:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-08-29 01:10:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-08-29 01:10:13,670 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-08-29 01:10:13,670 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-08-29 01:10:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-08-29 01:10:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-08-29 01:10:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-08-29 01:10:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-08-29 01:10:13,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-08-29 01:10:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-08-29 01:10:13,671 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-08-29 01:10:13,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-08-29 01:10:13,673 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-08-29 01:10:13,979 INFO L236 CfgBuilder]: Building ICFG [2023-08-29 01:10:13,980 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-08-29 01:10:14,236 INFO L277 CfgBuilder]: Performing block encoding [2023-08-29 01:10:14,245 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-08-29 01:10:14,245 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-08-29 01:10:14,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:10:14 BoogieIcfgContainer [2023-08-29 01:10:14,248 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-08-29 01:10:14,256 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-08-29 01:10:14,256 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-08-29 01:10:14,259 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-08-29 01:10:14,259 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.08 01:10:12" (1/3) ... [2023-08-29 01:10:14,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433645cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:10:14, skipping insertion in model container [2023-08-29 01:10:14,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.08 01:10:13" (2/3) ... [2023-08-29 01:10:14,261 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@433645cd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.08 01:10:14, skipping insertion in model container [2023-08-29 01:10:14,261 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:10:14" (3/3) ... [2023-08-29 01:10:14,262 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-08-29 01:10:14,269 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-08-29 01:10:14,278 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-08-29 01:10:14,278 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2023-08-29 01:10:14,279 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-08-29 01:10:14,399 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-08-29 01:10:14,453 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 419 transitions, 868 flow [2023-08-29 01:10:14,619 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-29 01:10:14,619 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 01:10:14,629 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 427 events. 33/427 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1131 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 293. Up to 11 conditions per place. [2023-08-29 01:10:14,630 INFO L82 GeneralOperation]: Start removeDead. Operand has 389 places, 419 transitions, 868 flow [2023-08-29 01:10:14,639 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 272 places, 289 transitions, 595 flow [2023-08-29 01:10:14,642 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:10:14,664 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 272 places, 289 transitions, 595 flow [2023-08-29 01:10:14,667 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 272 places, 289 transitions, 595 flow [2023-08-29 01:10:14,668 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 289 transitions, 595 flow [2023-08-29 01:10:14,730 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-29 01:10:14,730 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 01:10:14,735 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 427 events. 33/427 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1124 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 293. Up to 11 conditions per place. [2023-08-29 01:10:14,744 INFO L119 LiptonReduction]: Number of co-enabled transitions 16262 [2023-08-29 01:10:21,222 INFO L134 LiptonReduction]: Checked pairs total: 47217 [2023-08-29 01:10:21,222 INFO L136 LiptonReduction]: Total number of compositions: 335 [2023-08-29 01:10:21,233 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-08-29 01:10:21,244 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;@6bc17d79, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:10:21,244 INFO L358 AbstractCegarLoop]: Starting to check reachability of 33 error locations. [2023-08-29 01:10:21,246 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-08-29 01:10:21,246 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:10:21,246 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:21,247 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-08-29 01:10:21,247 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)] === [2023-08-29 01:10:21,251 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:21,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1216, now seen corresponding path program 1 times [2023-08-29 01:10:21,259 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:21,260 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992328589] [2023-08-29 01:10:21,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:21,260 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:21,460 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:21,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:21,461 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992328589] [2023-08-29 01:10:21,462 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992328589] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:21,462 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:21,462 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-08-29 01:10:21,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374809350] [2023-08-29 01:10:21,464 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:21,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-08-29 01:10:21,474 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:21,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-08-29 01:10:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-08-29 01:10:21,496 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 389 out of 754 [2023-08-29 01:10:21,500 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 74 transitions, 165 flow. Second operand has 2 states, 2 states have (on average 389.5) internal successors, (779), 2 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:21,500 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:21,500 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 389 of 754 [2023-08-29 01:10:21,501 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:21,640 INFO L130 PetriNetUnfolder]: 582/1117 cut-off events. [2023-08-29 01:10:21,640 INFO L131 PetriNetUnfolder]: For 20/20 co-relation queries the response was YES. [2023-08-29 01:10:21,643 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2010 conditions, 1117 events. 582/1117 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 6011 event pairs, 333 based on Foata normal form. 0/681 useless extension candidates. Maximal degree in co-relation 1839. Up to 850 conditions per place. [2023-08-29 01:10:21,649 INFO L137 encePairwiseOnDemand]: 741/754 looper letters, 32 selfloop transitions, 0 changer transitions 0/61 dead transitions. [2023-08-29 01:10:21,649 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 61 transitions, 203 flow [2023-08-29 01:10:21,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-08-29 01:10:21,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-08-29 01:10:21,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 823 transitions. [2023-08-29 01:10:21,683 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5457559681697612 [2023-08-29 01:10:21,684 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 823 transitions. [2023-08-29 01:10:21,685 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 823 transitions. [2023-08-29 01:10:21,688 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:21,690 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 823 transitions. [2023-08-29 01:10:21,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 411.5) internal successors, (823), 2 states have internal predecessors, (823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:21,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:21,705 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 754.0) internal successors, (2262), 3 states have internal predecessors, (2262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:21,707 INFO L175 Difference]: Start difference. First operand has 70 places, 74 transitions, 165 flow. Second operand 2 states and 823 transitions. [2023-08-29 01:10:21,708 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 61 transitions, 203 flow [2023-08-29 01:10:21,711 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 61 transitions, 199 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:10:21,713 INFO L231 Difference]: Finished difference. Result has 57 places, 61 transitions, 135 flow [2023-08-29 01:10:21,715 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=135, PETRI_PLACES=57, PETRI_TRANSITIONS=61} [2023-08-29 01:10:21,718 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -13 predicate places. [2023-08-29 01:10:21,719 INFO L495 AbstractCegarLoop]: Abstraction has has 57 places, 61 transitions, 135 flow [2023-08-29 01:10:21,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 389.5) internal successors, (779), 2 states have internal predecessors, (779), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:21,720 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:21,720 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-08-29 01:10:21,721 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-08-29 01:10:21,723 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)] === [2023-08-29 01:10:21,730 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:21,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1677926980, now seen corresponding path program 1 times [2023-08-29 01:10:21,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:21,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503319974] [2023-08-29 01:10:21,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:21,732 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:21,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:21,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:21,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:21,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503319974] [2023-08-29 01:10:21,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503319974] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:21,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:21,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:10:21,898 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181452861] [2023-08-29 01:10:21,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:21,899 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:21,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:21,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:21,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:21,986 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 369 out of 754 [2023-08-29 01:10:21,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 61 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:21,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:21,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 369 of 754 [2023-08-29 01:10:21,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:22,171 INFO L130 PetriNetUnfolder]: 912/1673 cut-off events. [2023-08-29 01:10:22,172 INFO L131 PetriNetUnfolder]: For 15/15 co-relation queries the response was YES. [2023-08-29 01:10:22,174 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3061 conditions, 1673 events. 912/1673 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 102. Compared 9178 event pairs, 531 based on Foata normal form. 0/1073 useless extension candidates. Maximal degree in co-relation 3057. Up to 1268 conditions per place. [2023-08-29 01:10:22,181 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 44 selfloop transitions, 4 changer transitions 0/72 dead transitions. [2023-08-29 01:10:22,182 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 72 transitions, 253 flow [2023-08-29 01:10:22,182 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:22,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:22,184 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1156 transitions. [2023-08-29 01:10:22,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.51105216622458 [2023-08-29 01:10:22,185 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1156 transitions. [2023-08-29 01:10:22,185 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1156 transitions. [2023-08-29 01:10:22,186 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:22,186 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1156 transitions. [2023-08-29 01:10:22,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 385.3333333333333) internal successors, (1156), 3 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,193 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,194 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,194 INFO L175 Difference]: Start difference. First operand has 57 places, 61 transitions, 135 flow. Second operand 3 states and 1156 transitions. [2023-08-29 01:10:22,195 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 72 transitions, 253 flow [2023-08-29 01:10:22,196 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 72 transitions, 253 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:10:22,198 INFO L231 Difference]: Finished difference. Result has 60 places, 64 transitions, 161 flow [2023-08-29 01:10:22,198 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=135, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=161, PETRI_PLACES=60, PETRI_TRANSITIONS=64} [2023-08-29 01:10:22,199 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -10 predicate places. [2023-08-29 01:10:22,199 INFO L495 AbstractCegarLoop]: Abstraction has has 60 places, 64 transitions, 161 flow [2023-08-29 01:10:22,200 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 371.0) internal successors, (1113), 3 states have internal predecessors, (1113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,200 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:22,201 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:22,201 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-08-29 01:10:22,201 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)] === [2023-08-29 01:10:22,204 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:22,204 INFO L85 PathProgramCache]: Analyzing trace with hash 325521323, now seen corresponding path program 1 times [2023-08-29 01:10:22,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:22,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612128413] [2023-08-29 01:10:22,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:22,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:22,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:22,285 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:22,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:22,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612128413] [2023-08-29 01:10:22,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612128413] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:22,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:22,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:10:22,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262351208] [2023-08-29 01:10:22,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:22,287 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:22,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:22,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:22,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:22,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 384 out of 754 [2023-08-29 01:10:22,304 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 64 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,304 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:22,305 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 384 of 754 [2023-08-29 01:10:22,305 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:22,445 INFO L130 PetriNetUnfolder]: 652/1238 cut-off events. [2023-08-29 01:10:22,445 INFO L131 PetriNetUnfolder]: For 83/124 co-relation queries the response was YES. [2023-08-29 01:10:22,448 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2383 conditions, 1238 events. 652/1238 cut-off events. For 83/124 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 6704 event pairs, 359 based on Foata normal form. 0/769 useless extension candidates. Maximal degree in co-relation 2377. Up to 926 conditions per place. [2023-08-29 01:10:22,453 INFO L137 encePairwiseOnDemand]: 751/754 looper letters, 32 selfloop transitions, 0 changer transitions 2/65 dead transitions. [2023-08-29 01:10:22,453 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 65 transitions, 231 flow [2023-08-29 01:10:22,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:22,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:22,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1186 transitions. [2023-08-29 01:10:22,456 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5243147656940761 [2023-08-29 01:10:22,456 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1186 transitions. [2023-08-29 01:10:22,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1186 transitions. [2023-08-29 01:10:22,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:22,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1186 transitions. [2023-08-29 01:10:22,460 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 395.3333333333333) internal successors, (1186), 3 states have internal predecessors, (1186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,463 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,465 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,465 INFO L175 Difference]: Start difference. First operand has 60 places, 64 transitions, 161 flow. Second operand 3 states and 1186 transitions. [2023-08-29 01:10:22,465 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 65 transitions, 231 flow [2023-08-29 01:10:22,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 65 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:10:22,468 INFO L231 Difference]: Finished difference. Result has 62 places, 63 transitions, 159 flow [2023-08-29 01:10:22,468 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=64, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=159, PETRI_PLACES=62, PETRI_TRANSITIONS=63} [2023-08-29 01:10:22,469 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -8 predicate places. [2023-08-29 01:10:22,469 INFO L495 AbstractCegarLoop]: Abstraction has has 62 places, 63 transitions, 159 flow [2023-08-29 01:10:22,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 384.6666666666667) internal successors, (1154), 3 states have internal predecessors, (1154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:22,470 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:22,470 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-08-29 01:10:22,471 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)] === [2023-08-29 01:10:22,471 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:22,471 INFO L85 PathProgramCache]: Analyzing trace with hash 1875255995, now seen corresponding path program 1 times [2023-08-29 01:10:22,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:22,471 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1993163307] [2023-08-29 01:10:22,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:22,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:22,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:22,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:22,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:22,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1993163307] [2023-08-29 01:10:22,515 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1993163307] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:22,515 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:22,515 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:10:22,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021609939] [2023-08-29 01:10:22,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:22,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:22,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:22,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:22,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:22,568 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 357 out of 754 [2023-08-29 01:10:22,570 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 63 transitions, 159 flow. Second operand has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,570 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:22,570 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 357 of 754 [2023-08-29 01:10:22,570 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:22,770 INFO L130 PetriNetUnfolder]: 1229/2073 cut-off events. [2023-08-29 01:10:22,771 INFO L131 PetriNetUnfolder]: For 278/327 co-relation queries the response was YES. [2023-08-29 01:10:22,774 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4561 conditions, 2073 events. 1229/2073 cut-off events. For 278/327 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 10436 event pairs, 511 based on Foata normal form. 1/1449 useless extension candidates. Maximal degree in co-relation 4554. Up to 1345 conditions per place. [2023-08-29 01:10:22,782 INFO L137 encePairwiseOnDemand]: 741/754 looper letters, 65 selfloop transitions, 12 changer transitions 0/96 dead transitions. [2023-08-29 01:10:22,782 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 96 transitions, 396 flow [2023-08-29 01:10:22,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:22,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:22,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1146 transitions. [2023-08-29 01:10:22,787 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.506631299734748 [2023-08-29 01:10:22,787 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1146 transitions. [2023-08-29 01:10:22,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1146 transitions. [2023-08-29 01:10:22,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:22,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1146 transitions. [2023-08-29 01:10:22,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 382.0) internal successors, (1146), 3 states have internal predecessors, (1146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,795 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,795 INFO L175 Difference]: Start difference. First operand has 62 places, 63 transitions, 159 flow. Second operand 3 states and 1146 transitions. [2023-08-29 01:10:22,795 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 96 transitions, 396 flow [2023-08-29 01:10:22,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 96 transitions, 388 flow, removed 4 selfloop flow, removed 1 redundant places. [2023-08-29 01:10:22,800 INFO L231 Difference]: Finished difference. Result has 64 places, 73 transitions, 257 flow [2023-08-29 01:10:22,801 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=155, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=257, PETRI_PLACES=64, PETRI_TRANSITIONS=73} [2023-08-29 01:10:22,802 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -6 predicate places. [2023-08-29 01:10:22,802 INFO L495 AbstractCegarLoop]: Abstraction has has 64 places, 73 transitions, 257 flow [2023-08-29 01:10:22,803 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 359.6666666666667) internal successors, (1079), 3 states have internal predecessors, (1079), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,803 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:22,803 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:22,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-08-29 01:10:22,803 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_usbErr4ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-29 01:10:22,804 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:22,804 INFO L85 PathProgramCache]: Analyzing trace with hash -2128745576, now seen corresponding path program 1 times [2023-08-29 01:10:22,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:22,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [492044180] [2023-08-29 01:10:22,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:22,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:22,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:22,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:22,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:22,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [492044180] [2023-08-29 01:10:22,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [492044180] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:22,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:22,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:10:22,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480293105] [2023-08-29 01:10:22,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:22,895 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:22,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:22,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:22,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:22,914 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 373 out of 754 [2023-08-29 01:10:22,915 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 73 transitions, 257 flow. Second operand has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:22,915 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:22,916 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 373 of 754 [2023-08-29 01:10:22,916 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:23,073 INFO L130 PetriNetUnfolder]: 869/1628 cut-off events. [2023-08-29 01:10:23,074 INFO L131 PetriNetUnfolder]: For 479/549 co-relation queries the response was YES. [2023-08-29 01:10:23,077 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 1628 events. 869/1628 cut-off events. For 479/549 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 9125 event pairs, 349 based on Foata normal form. 5/1116 useless extension candidates. Maximal degree in co-relation 3511. Up to 918 conditions per place. [2023-08-29 01:10:23,105 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 40 selfloop transitions, 6 changer transitions 0/85 dead transitions. [2023-08-29 01:10:23,105 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 85 transitions, 373 flow [2023-08-29 01:10:23,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:23,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:23,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-08-29 01:10:23,108 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5141467727674625 [2023-08-29 01:10:23,108 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-08-29 01:10:23,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-08-29 01:10:23,109 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:23,109 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-08-29 01:10:23,112 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,115 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,117 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,117 INFO L175 Difference]: Start difference. First operand has 64 places, 73 transitions, 257 flow. Second operand 3 states and 1163 transitions. [2023-08-29 01:10:23,117 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 85 transitions, 373 flow [2023-08-29 01:10:23,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 64 places, 85 transitions, 349 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:10:23,123 INFO L231 Difference]: Finished difference. Result has 66 places, 76 transitions, 271 flow [2023-08-29 01:10:23,123 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=233, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=73, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=66, PETRI_TRANSITIONS=76} [2023-08-29 01:10:23,125 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -4 predicate places. [2023-08-29 01:10:23,125 INFO L495 AbstractCegarLoop]: Abstraction has has 66 places, 76 transitions, 271 flow [2023-08-29 01:10:23,126 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 374.6666666666667) internal successors, (1124), 3 states have internal predecessors, (1124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,126 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:23,126 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:23,126 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-08-29 01:10:23,126 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE === [thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE, thread_usbErr7ASSERT_VIOLATIONDATA_RACE, thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (and 30 more)] === [2023-08-29 01:10:23,127 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:23,127 INFO L85 PathProgramCache]: Analyzing trace with hash 1932547844, now seen corresponding path program 1 times [2023-08-29 01:10:23,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:23,127 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208916542] [2023-08-29 01:10:23,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:23,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:23,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:23,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:23,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:23,176 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208916542] [2023-08-29 01:10:23,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1208916542] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:23,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:23,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:10:23,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298515195] [2023-08-29 01:10:23,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:23,178 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:23,178 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:23,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:23,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:23,242 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 754 [2023-08-29 01:10:23,243 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 76 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,243 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:23,243 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 754 [2023-08-29 01:10:23,243 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:23,446 INFO L130 PetriNetUnfolder]: 1119/1937 cut-off events. [2023-08-29 01:10:23,446 INFO L131 PetriNetUnfolder]: For 595/666 co-relation queries the response was YES. [2023-08-29 01:10:23,450 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4672 conditions, 1937 events. 1119/1937 cut-off events. For 595/666 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 10058 event pairs, 566 based on Foata normal form. 15/1452 useless extension candidates. Maximal degree in co-relation 4663. Up to 1507 conditions per place. [2023-08-29 01:10:23,457 INFO L137 encePairwiseOnDemand]: 747/754 looper letters, 62 selfloop transitions, 10 changer transitions 0/99 dead transitions. [2023-08-29 01:10:23,457 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 99 transitions, 494 flow [2023-08-29 01:10:23,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:23,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:23,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1163 transitions. [2023-08-29 01:10:23,460 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5141467727674625 [2023-08-29 01:10:23,461 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1163 transitions. [2023-08-29 01:10:23,461 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1163 transitions. [2023-08-29 01:10:23,461 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:23,462 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1163 transitions. [2023-08-29 01:10:23,464 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 387.6666666666667) internal successors, (1163), 3 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,469 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,469 INFO L175 Difference]: Start difference. First operand has 66 places, 76 transitions, 271 flow. Second operand 3 states and 1163 transitions. [2023-08-29 01:10:23,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 99 transitions, 494 flow [2023-08-29 01:10:23,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 99 transitions, 474 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:10:23,475 INFO L231 Difference]: Finished difference. Result has 67 places, 82 transitions, 327 flow [2023-08-29 01:10:23,475 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=259, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=66, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=327, PETRI_PLACES=67, PETRI_TRANSITIONS=82} [2023-08-29 01:10:23,477 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2023-08-29 01:10:23,478 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 82 transitions, 327 flow [2023-08-29 01:10:23,478 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 370.6666666666667) internal successors, (1112), 3 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,479 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:23,479 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:23,479 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-08-29 01:10:23,479 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)] === [2023-08-29 01:10:23,480 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:23,480 INFO L85 PathProgramCache]: Analyzing trace with hash 81198873, now seen corresponding path program 1 times [2023-08-29 01:10:23,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:23,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880476788] [2023-08-29 01:10:23,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:23,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:23,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:23,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:23,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:23,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880476788] [2023-08-29 01:10:23,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1880476788] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:23,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:23,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:10:23,799 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [278469629] [2023-08-29 01:10:23,799 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:23,799 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:10:23,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:10:23,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:10:23,919 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 382 out of 754 [2023-08-29 01:10:23,921 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 82 transitions, 327 flow. Second operand has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:23,921 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:23,921 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 382 of 754 [2023-08-29 01:10:23,922 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:24,376 INFO L130 PetriNetUnfolder]: 2032/3268 cut-off events. [2023-08-29 01:10:24,376 INFO L131 PetriNetUnfolder]: For 1052/1330 co-relation queries the response was YES. [2023-08-29 01:10:24,382 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7689 conditions, 3268 events. 2032/3268 cut-off events. For 1052/1330 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 18047 event pairs, 439 based on Foata normal form. 91/2475 useless extension candidates. Maximal degree in co-relation 7679. Up to 1110 conditions per place. [2023-08-29 01:10:24,394 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 157 selfloop transitions, 4 changer transitions 1/197 dead transitions. [2023-08-29 01:10:24,394 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 197 transitions, 1091 flow [2023-08-29 01:10:24,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:10:24,395 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:10:24,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2417 transitions. [2023-08-29 01:10:24,400 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.534261715296198 [2023-08-29 01:10:24,400 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2417 transitions. [2023-08-29 01:10:24,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2417 transitions. [2023-08-29 01:10:24,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:24,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2417 transitions. [2023-08-29 01:10:24,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 402.8333333333333) internal successors, (2417), 6 states have internal predecessors, (2417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,411 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,412 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,412 INFO L175 Difference]: Start difference. First operand has 67 places, 82 transitions, 327 flow. Second operand 6 states and 2417 transitions. [2023-08-29 01:10:24,412 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 197 transitions, 1091 flow [2023-08-29 01:10:24,415 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 70 places, 197 transitions, 1073 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-08-29 01:10:24,417 INFO L231 Difference]: Finished difference. Result has 70 places, 80 transitions, 319 flow [2023-08-29 01:10:24,418 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, 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} [2023-08-29 01:10:24,418 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, 0 predicate places. [2023-08-29 01:10:24,418 INFO L495 AbstractCegarLoop]: Abstraction has has 70 places, 80 transitions, 319 flow [2023-08-29 01:10:24,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 383.5) internal successors, (2301), 6 states have internal predecessors, (2301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,419 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:24,420 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:24,420 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-08-29 01:10:24,420 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)] === [2023-08-29 01:10:24,420 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:24,420 INFO L85 PathProgramCache]: Analyzing trace with hash -2010733342, now seen corresponding path program 1 times [2023-08-29 01:10:24,421 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:24,421 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977069202] [2023-08-29 01:10:24,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:24,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:24,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:24,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:24,468 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:24,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977069202] [2023-08-29 01:10:24,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977069202] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:24,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:24,469 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:10:24,469 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659465544] [2023-08-29 01:10:24,469 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:24,470 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:24,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:24,470 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:24,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:24,475 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 754 [2023-08-29 01:10:24,476 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) [2023-08-29 01:10:24,476 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:24,476 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 754 [2023-08-29 01:10:24,477 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:24,696 INFO L130 PetriNetUnfolder]: 1412/2607 cut-off events. [2023-08-29 01:10:24,696 INFO L131 PetriNetUnfolder]: For 850/1034 co-relation queries the response was YES. [2023-08-29 01:10:24,702 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6117 conditions, 2607 events. 1412/2607 cut-off events. For 850/1034 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 15820 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. [2023-08-29 01:10:24,711 INFO L137 encePairwiseOnDemand]: 752/754 looper letters, 59 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2023-08-29 01:10:24,711 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 71 places, 102 transitions, 522 flow [2023-08-29 01:10:24,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:24,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:24,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1206 transitions. [2023-08-29 01:10:24,715 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.53315649867374 [2023-08-29 01:10:24,715 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1206 transitions. [2023-08-29 01:10:24,715 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1206 transitions. [2023-08-29 01:10:24,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:24,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1206 transitions. [2023-08-29 01:10:24,718 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) [2023-08-29 01:10:24,721 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,722 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,722 INFO L175 Difference]: Start difference. First operand has 70 places, 80 transitions, 319 flow. Second operand 3 states and 1206 transitions. [2023-08-29 01:10:24,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 71 places, 102 transitions, 522 flow [2023-08-29 01:10:24,724 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 102 transitions, 512 flow, removed 0 selfloop flow, removed 5 redundant places. [2023-08-29 01:10:24,725 INFO L231 Difference]: Finished difference. Result has 67 places, 79 transitions, 313 flow [2023-08-29 01:10:24,726 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, 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} [2023-08-29 01:10:24,726 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -3 predicate places. [2023-08-29 01:10:24,726 INFO L495 AbstractCegarLoop]: Abstraction has has 67 places, 79 transitions, 313 flow [2023-08-29 01:10:24,727 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 388.3333333333333) internal successors, (1165), 3 states have internal predecessors, (1165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,727 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:24,727 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:24,727 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-08-29 01:10:24,728 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)] === [2023-08-29 01:10:24,728 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:24,728 INFO L85 PathProgramCache]: Analyzing trace with hash -1096269798, now seen corresponding path program 1 times [2023-08-29 01:10:24,728 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:24,728 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1323331119] [2023-08-29 01:10:24,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:24,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:24,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:24,786 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:24,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:24,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1323331119] [2023-08-29 01:10:24,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1323331119] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:24,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:24,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:10:24,787 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604195321] [2023-08-29 01:10:24,787 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:24,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:24,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:24,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:24,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:24,795 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 386 out of 754 [2023-08-29 01:10:24,797 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 67 places, 79 transitions, 313 flow. Second operand has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:24,797 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:24,797 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 386 of 754 [2023-08-29 01:10:24,797 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:25,030 INFO L130 PetriNetUnfolder]: 1346/2597 cut-off events. [2023-08-29 01:10:25,030 INFO L131 PetriNetUnfolder]: For 1034/1177 co-relation queries the response was YES. [2023-08-29 01:10:25,037 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6173 conditions, 2597 events. 1346/2597 cut-off events. For 1034/1177 co-relation queries the response was YES. Maximal size of possible extension queue 156. Compared 16163 event pairs, 412 based on Foata normal form. 55/2044 useless extension candidates. Maximal degree in co-relation 6162. Up to 970 conditions per place. [2023-08-29 01:10:25,046 INFO L137 encePairwiseOnDemand]: 750/754 looper letters, 60 selfloop transitions, 4 changer transitions 0/104 dead transitions. [2023-08-29 01:10:25,046 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 104 transitions, 535 flow [2023-08-29 01:10:25,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:25,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:25,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1209 transitions. [2023-08-29 01:10:25,050 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5344827586206896 [2023-08-29 01:10:25,050 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1209 transitions. [2023-08-29 01:10:25,050 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1209 transitions. [2023-08-29 01:10:25,051 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:25,051 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1209 transitions. [2023-08-29 01:10:25,053 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 403.0) internal successors, (1209), 3 states have internal predecessors, (1209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,056 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,057 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,057 INFO L175 Difference]: Start difference. First operand has 67 places, 79 transitions, 313 flow. Second operand 3 states and 1209 transitions. [2023-08-29 01:10:25,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 104 transitions, 535 flow [2023-08-29 01:10:25,060 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 104 transitions, 529 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:10:25,061 INFO L231 Difference]: Finished difference. Result has 68 places, 81 transitions, 336 flow [2023-08-29 01:10:25,061 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=308, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=336, PETRI_PLACES=68, PETRI_TRANSITIONS=81} [2023-08-29 01:10:25,062 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -2 predicate places. [2023-08-29 01:10:25,062 INFO L495 AbstractCegarLoop]: Abstraction has has 68 places, 81 transitions, 336 flow [2023-08-29 01:10:25,063 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 389.0) internal successors, (1167), 3 states have internal predecessors, (1167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,063 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:25,063 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:25,063 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-08-29 01:10:25,063 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)] === [2023-08-29 01:10:25,064 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:25,064 INFO L85 PathProgramCache]: Analyzing trace with hash -779787950, now seen corresponding path program 1 times [2023-08-29 01:10:25,064 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:25,064 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099162097] [2023-08-29 01:10:25,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:25,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:25,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:25,132 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:25,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:25,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099162097] [2023-08-29 01:10:25,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099162097] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:25,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:25,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:10:25,133 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950785278] [2023-08-29 01:10:25,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:25,134 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:25,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:25,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:25,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:25,154 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 754 [2023-08-29 01:10:25,155 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 81 transitions, 336 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) [2023-08-29 01:10:25,155 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:25,155 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 754 [2023-08-29 01:10:25,156 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:25,256 INFO L130 PetriNetUnfolder]: 295/644 cut-off events. [2023-08-29 01:10:25,257 INFO L131 PetriNetUnfolder]: For 173/208 co-relation queries the response was YES. [2023-08-29 01:10:25,258 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1411 conditions, 644 events. 295/644 cut-off events. For 173/208 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 3090 event pairs, 87 based on Foata normal form. 33/524 useless extension candidates. Maximal degree in co-relation 1400. Up to 245 conditions per place. [2023-08-29 01:10:25,261 INFO L137 encePairwiseOnDemand]: 750/754 looper letters, 38 selfloop transitions, 2 changer transitions 4/64 dead transitions. [2023-08-29 01:10:25,261 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 64 transitions, 297 flow [2023-08-29 01:10:25,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:25,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1167 transitions. [2023-08-29 01:10:25,264 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5159151193633952 [2023-08-29 01:10:25,265 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1167 transitions. [2023-08-29 01:10:25,265 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1167 transitions. [2023-08-29 01:10:25,265 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:25,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1167 transitions. [2023-08-29 01:10:25,268 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) [2023-08-29 01:10:25,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,272 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,272 INFO L175 Difference]: Start difference. First operand has 68 places, 81 transitions, 336 flow. Second operand 3 states and 1167 transitions. [2023-08-29 01:10:25,272 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 64 transitions, 297 flow [2023-08-29 01:10:25,274 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 64 transitions, 254 flow, removed 8 selfloop flow, removed 7 redundant places. [2023-08-29 01:10:25,275 INFO L231 Difference]: Finished difference. Result has 58 places, 51 transitions, 148 flow [2023-08-29 01:10:25,275 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=152, 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=148, PETRI_PLACES=58, PETRI_TRANSITIONS=51} [2023-08-29 01:10:25,275 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -12 predicate places. [2023-08-29 01:10:25,276 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 51 transitions, 148 flow [2023-08-29 01:10:25,276 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) [2023-08-29 01:10:25,276 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:25,276 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:25,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-08-29 01:10:25,277 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)] === [2023-08-29 01:10:25,277 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:25,277 INFO L85 PathProgramCache]: Analyzing trace with hash -652953724, now seen corresponding path program 1 times [2023-08-29 01:10:25,277 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:25,278 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [524170251] [2023-08-29 01:10:25,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:25,278 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:25,542 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-08-29 01:10:25,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:25,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [524170251] [2023-08-29 01:10:25,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [524170251] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:25,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:25,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-08-29 01:10:25,543 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123317302] [2023-08-29 01:10:25,543 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:25,543 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-08-29 01:10:25,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:25,544 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-08-29 01:10:25,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2023-08-29 01:10:25,653 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 376 out of 754 [2023-08-29 01:10:25,655 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 51 transitions, 148 flow. Second operand has 6 states, 6 states have (on average 378.1666666666667) internal successors, (2269), 6 states have internal predecessors, (2269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,656 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:25,656 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 376 of 754 [2023-08-29 01:10:25,656 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:25,855 INFO L130 PetriNetUnfolder]: 831/1336 cut-off events. [2023-08-29 01:10:25,855 INFO L131 PetriNetUnfolder]: For 217/240 co-relation queries the response was YES. [2023-08-29 01:10:25,857 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2860 conditions, 1336 events. 831/1336 cut-off events. For 217/240 co-relation queries the response was YES. Maximal size of possible extension queue 47. Compared 5701 event pairs, 226 based on Foata normal form. 1/971 useless extension candidates. Maximal degree in co-relation 2852. Up to 704 conditions per place. [2023-08-29 01:10:25,860 INFO L137 encePairwiseOnDemand]: 749/754 looper letters, 74 selfloop transitions, 4 changer transitions 5/98 dead transitions. [2023-08-29 01:10:25,861 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 98 transitions, 424 flow [2023-08-29 01:10:25,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-08-29 01:10:25,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-08-29 01:10:25,865 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 2340 transitions. [2023-08-29 01:10:25,866 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5172413793103449 [2023-08-29 01:10:25,866 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 2340 transitions. [2023-08-29 01:10:25,866 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 2340 transitions. [2023-08-29 01:10:25,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:25,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 2340 transitions. [2023-08-29 01:10:25,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 390.0) internal successors, (2340), 6 states have internal predecessors, (2340), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,876 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,877 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 754.0) internal successors, (5278), 7 states have internal predecessors, (5278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,877 INFO L175 Difference]: Start difference. First operand has 58 places, 51 transitions, 148 flow. Second operand 6 states and 2340 transitions. [2023-08-29 01:10:25,877 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 98 transitions, 424 flow [2023-08-29 01:10:25,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 98 transitions, 418 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-08-29 01:10:25,880 INFO L231 Difference]: Finished difference. Result has 61 places, 53 transitions, 171 flow [2023-08-29 01:10:25,880 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=171, PETRI_PLACES=61, PETRI_TRANSITIONS=53} [2023-08-29 01:10:25,881 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2023-08-29 01:10:25,881 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 53 transitions, 171 flow [2023-08-29 01:10:25,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 378.1666666666667) internal successors, (2269), 6 states have internal predecessors, (2269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,881 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:25,882 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:25,882 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-08-29 01:10:25,882 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)] === [2023-08-29 01:10:25,882 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:25,882 INFO L85 PathProgramCache]: Analyzing trace with hash 493085014, now seen corresponding path program 1 times [2023-08-29 01:10:25,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:25,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204892249] [2023-08-29 01:10:25,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:25,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:25,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:25,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204892249] [2023-08-29 01:10:25,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204892249] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:25,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:25,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-08-29 01:10:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488417744] [2023-08-29 01:10:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:25,931 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:25,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:25,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:25,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:25,987 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 368 out of 754 [2023-08-29 01:10:25,988 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 53 transitions, 171 flow. Second operand has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:25,988 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:25,988 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 368 of 754 [2023-08-29 01:10:25,988 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:26,088 INFO L130 PetriNetUnfolder]: 502/977 cut-off events. [2023-08-29 01:10:26,088 INFO L131 PetriNetUnfolder]: For 220/247 co-relation queries the response was YES. [2023-08-29 01:10:26,090 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2209 conditions, 977 events. 502/977 cut-off events. For 220/247 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 4270 event pairs, 328 based on Foata normal form. 4/864 useless extension candidates. Maximal degree in co-relation 2198. Up to 785 conditions per place. [2023-08-29 01:10:26,091 INFO L137 encePairwiseOnDemand]: 752/754 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2023-08-29 01:10:26,091 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 52 transitions, 239 flow [2023-08-29 01:10:26,092 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:26,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:26,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1137 transitions. [2023-08-29 01:10:26,094 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5026525198938993 [2023-08-29 01:10:26,095 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1137 transitions. [2023-08-29 01:10:26,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1137 transitions. [2023-08-29 01:10:26,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:26,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1137 transitions. [2023-08-29 01:10:26,097 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 379.0) internal successors, (1137), 3 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:26,100 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:26,100 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 754.0) internal successors, (3016), 4 states have internal predecessors, (3016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:26,100 INFO L175 Difference]: Start difference. First operand has 61 places, 53 transitions, 171 flow. Second operand 3 states and 1137 transitions. [2023-08-29 01:10:26,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 52 transitions, 239 flow [2023-08-29 01:10:26,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 239 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-08-29 01:10:26,102 INFO L231 Difference]: Finished difference. Result has 61 places, 0 transitions, 0 flow [2023-08-29 01:10:26,102 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=754, PETRI_DIFFERENCE_MINUEND_FLOW=169, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=61, PETRI_TRANSITIONS=0} [2023-08-29 01:10:26,103 INFO L281 CegarLoopForPetriNet]: 70 programPoint places, -9 predicate places. [2023-08-29 01:10:26,103 INFO L495 AbstractCegarLoop]: Abstraction has has 61 places, 0 transitions, 0 flow [2023-08-29 01:10:26,103 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 372.6666666666667) internal successors, (1118), 3 states have internal predecessors, (1118), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:26,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (32 of 33 remaining) [2023-08-29 01:10:26,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (31 of 33 remaining) [2023-08-29 01:10:26,106 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (30 of 33 remaining) [2023-08-29 01:10:26,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (29 of 33 remaining) [2023-08-29 01:10:26,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (28 of 33 remaining) [2023-08-29 01:10:26,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (27 of 33 remaining) [2023-08-29 01:10:26,107 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr1ASSERT_VIOLATIONDATA_RACE (26 of 33 remaining) [2023-08-29 01:10:26,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (25 of 33 remaining) [2023-08-29 01:10:26,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONDATA_RACE (24 of 33 remaining) [2023-08-29 01:10:26,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONDATA_RACE (23 of 33 remaining) [2023-08-29 01:10:26,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONDATA_RACE (22 of 33 remaining) [2023-08-29 01:10:26,108 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (21 of 33 remaining) [2023-08-29 01:10:26,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr2ASSERT_VIOLATIONDATA_RACE (20 of 33 remaining) [2023-08-29 01:10:26,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONDATA_RACE (19 of 33 remaining) [2023-08-29 01:10:26,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (18 of 33 remaining) [2023-08-29 01:10:26,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (17 of 33 remaining) [2023-08-29 01:10:26,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONDATA_RACE (16 of 33 remaining) [2023-08-29 01:10:26,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr4ASSERT_VIOLATIONDATA_RACE (15 of 33 remaining) [2023-08-29 01:10:26,109 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (14 of 33 remaining) [2023-08-29 01:10:26,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (13 of 33 remaining) [2023-08-29 01:10:26,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr6ASSERT_VIOLATIONDATA_RACE (12 of 33 remaining) [2023-08-29 01:10:26,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr8ASSERT_VIOLATIONDATA_RACE (11 of 33 remaining) [2023-08-29 01:10:26,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (10 of 33 remaining) [2023-08-29 01:10:26,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (9 of 33 remaining) [2023-08-29 01:10:26,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr7ASSERT_VIOLATIONDATA_RACE (8 of 33 remaining) [2023-08-29 01:10:26,110 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONDATA_RACE (7 of 33 remaining) [2023-08-29 01:10:26,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONDATA_RACE (6 of 33 remaining) [2023-08-29 01:10:26,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (5 of 33 remaining) [2023-08-29 01:10:26,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr10ASSERT_VIOLATIONDATA_RACE (4 of 33 remaining) [2023-08-29 01:10:26,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr9ASSERT_VIOLATIONDATA_RACE (3 of 33 remaining) [2023-08-29 01:10:26,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr5ASSERT_VIOLATIONDATA_RACE (2 of 33 remaining) [2023-08-29 01:10:26,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr3ASSERT_VIOLATIONDATA_RACE (1 of 33 remaining) [2023-08-29 01:10:26,111 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr6ASSERT_VIOLATIONDATA_RACE (0 of 33 remaining) [2023-08-29 01:10:26,112 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2023-08-29 01:10:26,112 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:26,114 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 (1/2) [2023-08-29 01:10:26,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 389 places, 419 transitions, 868 flow [2023-08-29 01:10:26,157 INFO L130 PetriNetUnfolder]: 33/427 cut-off events. [2023-08-29 01:10:26,157 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 01:10:26,159 INFO L83 FinitePrefix]: Finished finitePrefix Result has 439 conditions, 427 events. 33/427 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 1131 event pairs, 0 based on Foata normal form. 0/359 useless extension candidates. Maximal degree in co-relation 293. Up to 11 conditions per place. [2023-08-29 01:10:26,159 INFO L82 GeneralOperation]: Start removeDead. Operand has 389 places, 419 transitions, 868 flow [2023-08-29 01:10:26,161 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 249 places, 264 transitions, 545 flow [2023-08-29 01:10:26,161 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-08-29 01:10:26,161 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 249 places, 264 transitions, 545 flow [2023-08-29 01:10:26,161 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 249 places, 264 transitions, 545 flow [2023-08-29 01:10:26,161 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 249 places, 264 transitions, 545 flow [2023-08-29 01:10:26,197 INFO L130 PetriNetUnfolder]: 31/387 cut-off events. [2023-08-29 01:10:26,198 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-08-29 01:10:26,199 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. [2023-08-29 01:10:26,206 INFO L119 LiptonReduction]: Number of co-enabled transitions 16094 [2023-08-29 01:10:31,431 INFO L134 LiptonReduction]: Checked pairs total: 40755 [2023-08-29 01:10:31,431 INFO L136 LiptonReduction]: Total number of compositions: 284 [2023-08-29 01:10:31,435 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-08-29 01:10:31,436 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;@6bc17d79, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-08-29 01:10:31,436 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-08-29 01:10:31,441 INFO L130 PetriNetUnfolder]: 7/54 cut-off events. [2023-08-29 01:10:31,441 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-08-29 01:10:31,442 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-08-29 01:10:31,442 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-08-29 01:10:31,442 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-08-29 01:10:31,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-08-29 01:10:31,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1494438121, now seen corresponding path program 1 times [2023-08-29 01:10:31,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-08-29 01:10:31,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132888298] [2023-08-29 01:10:31,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-08-29 01:10:31,443 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-08-29 01:10:31,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-08-29 01:10:31,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-08-29 01:10:31,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-08-29 01:10:31,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132888298] [2023-08-29 01:10:31,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2132888298] provided 1 perfect and 0 imperfect interpolant sequences [2023-08-29 01:10:31,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-08-29 01:10:31,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-08-29 01:10:31,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829174697] [2023-08-29 01:10:31,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-08-29 01:10:31,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-08-29 01:10:31,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-08-29 01:10:31,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-08-29 01:10:31,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-08-29 01:10:31,511 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 375 out of 703 [2023-08-29 01:10:31,512 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 64 transitions, 145 flow. Second operand has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:31,512 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-08-29 01:10:31,512 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 375 of 703 [2023-08-29 01:10:31,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-08-29 01:10:31,592 INFO L130 PetriNetUnfolder]: 239/527 cut-off events. [2023-08-29 01:10:31,592 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-08-29 01:10:31,595 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 45. Compared 2569 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. [2023-08-29 01:10:31,595 INFO L137 encePairwiseOnDemand]: 691/703 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2023-08-29 01:10:31,595 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 65 transitions, 219 flow [2023-08-29 01:10:31,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-08-29 01:10:31,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-08-29 01:10:31,598 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 1175 transitions. [2023-08-29 01:10:31,598 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5571360834518729 [2023-08-29 01:10:31,598 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 1175 transitions. [2023-08-29 01:10:31,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 1175 transitions. [2023-08-29 01:10:31,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-08-29 01:10:31,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 1175 transitions. [2023-08-29 01:10:31,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 391.6666666666667) internal successors, (1175), 3 states have internal predecessors, (1175), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:31,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:31,604 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 703.0) internal successors, (2812), 4 states have internal predecessors, (2812), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:31,605 INFO L175 Difference]: Start difference. First operand has 61 places, 64 transitions, 145 flow. Second operand 3 states and 1175 transitions. [2023-08-29 01:10:31,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 65 transitions, 219 flow [2023-08-29 01:10:31,605 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 65 transitions, 209 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-08-29 01:10:31,606 INFO L231 Difference]: Finished difference. Result has 54 places, 0 transitions, 0 flow [2023-08-29 01:10:31,606 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=703, 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} [2023-08-29 01:10:31,607 INFO L281 CegarLoopForPetriNet]: 61 programPoint places, -7 predicate places. [2023-08-29 01:10:31,607 INFO L495 AbstractCegarLoop]: Abstraction has has 54 places, 0 transitions, 0 flow [2023-08-29 01:10:31,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 377.6666666666667) internal successors, (1133), 3 states have internal predecessors, (1133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-08-29 01:10:31,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-08-29 01:10:31,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-08-29 01:10:31,608 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-08-29 01:10:31,608 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2023-08-29 01:10:31,608 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-08-29 01:10:31,609 INFO L307 ceAbstractionStarter]: Result for error location InUseError was SAFE,SAFE,SAFE (2/2) [2023-08-29 01:10:31,610 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-08-29 01:10:31,610 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-08-29 01:10:31,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.08 01:10:31 BasicIcfg [2023-08-29 01:10:31,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-08-29 01:10:31,614 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2023-08-29 01:10:31,614 INFO L271 PluginConnector]: Initializing Witness Printer... [2023-08-29 01:10:31,614 INFO L275 PluginConnector]: Witness Printer initialized [2023-08-29 01:10:31,615 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.08 01:10:14" (3/4) ... [2023-08-29 01:10:31,617 INFO L137 WitnessPrinter]: Generating witness for correct program [2023-08-29 01:10:31,621 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_ath9k [2023-08-29 01:10:31,622 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread_usb [2023-08-29 01:10:31,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2023-08-29 01:10:31,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2023-08-29 01:10:31,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2023-08-29 01:10:31,627 INFO L961 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2023-08-29 01:10:31,659 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2023-08-29 01:10:31,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2023-08-29 01:10:31,660 INFO L158 Benchmark]: Toolchain (without parser) took 19173.17ms. Allocated memory was 69.2MB in the beginning and 375.4MB in the end (delta: 306.2MB). Free memory was 44.1MB in the beginning and 206.7MB in the end (delta: -162.6MB). Peak memory consumption was 147.3MB. Max. memory is 16.1GB. [2023-08-29 01:10:31,660 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. [2023-08-29 01:10:31,661 INFO L158 Benchmark]: CACSL2BoogieTranslator took 899.36ms. Allocated memory is still 69.2MB. Free memory was 43.9MB in the beginning and 35.7MB in the end (delta: 8.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. [2023-08-29 01:10:31,661 INFO L158 Benchmark]: Boogie Procedure Inliner took 96.45ms. Allocated memory is still 69.2MB. Free memory was 35.7MB in the beginning and 31.8MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 01:10:31,661 INFO L158 Benchmark]: Boogie Preprocessor took 80.95ms. Allocated memory is still 69.2MB. Free memory was 31.8MB in the beginning and 28.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 01:10:31,662 INFO L158 Benchmark]: RCFGBuilder took 679.82ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 28.5MB in the beginning and 57.6MB in the end (delta: -29.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. [2023-08-29 01:10:31,662 INFO L158 Benchmark]: TraceAbstraction took 17357.51ms. Allocated memory was 88.1MB in the beginning and 375.4MB in the end (delta: 287.3MB). Free memory was 56.5MB in the beginning and 209.9MB in the end (delta: -153.4MB). Peak memory consumption was 132.3MB. Max. memory is 16.1GB. [2023-08-29 01:10:31,662 INFO L158 Benchmark]: Witness Printer took 45.63ms. Allocated memory is still 375.4MB. Free memory was 209.9MB in the beginning and 206.7MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2023-08-29 01:10:31,665 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 56.6MB. Free memory was 34.3MB in the beginning and 34.3MB in the end (delta: 38.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 899.36ms. Allocated memory is still 69.2MB. Free memory was 43.9MB in the beginning and 35.7MB in the end (delta: 8.2MB). Peak memory consumption was 28.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 96.45ms. Allocated memory is still 69.2MB. Free memory was 35.7MB in the beginning and 31.8MB in the end (delta: 3.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 80.95ms. Allocated memory is still 69.2MB. Free memory was 31.8MB in the beginning and 28.5MB in the end (delta: 3.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 679.82ms. Allocated memory was 69.2MB in the beginning and 88.1MB in the end (delta: 18.9MB). Free memory was 28.5MB in the beginning and 57.6MB in the end (delta: -29.2MB). Peak memory consumption was 14.1MB. Max. memory is 16.1GB. * TraceAbstraction took 17357.51ms. Allocated memory was 88.1MB in the beginning and 375.4MB in the end (delta: 287.3MB). Free memory was 56.5MB in the beginning and 209.9MB in the end (delta: -153.4MB). Peak memory consumption was 132.3MB. Max. memory is 16.1GB. * Witness Printer took 45.63ms. Allocated memory is still 375.4MB. Free memory was 209.9MB in the beginning and 206.7MB 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: 6.6s, 272 PlacesBefore, 70 PlacesAfterwards, 289 TransitionsBefore, 74 TransitionsAfterwards, 16262 CoEnabledTransitionPairs, 10 FixpointIterations, 91 TrivialSequentialCompositions, 187 ConcurrentSequentialCompositions, 3 TrivialYvCompositions, 41 ConcurrentYvCompositions, 13 ChoiceCompositions, 335 TotalNumberOfCompositions, 47217 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 25729, independent: 24924, independent conditional: 0, independent unconditional: 24924, dependent: 805, dependent conditional: 0, dependent unconditional: 805, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9538, independent: 9444, independent conditional: 0, independent unconditional: 9444, dependent: 94, dependent conditional: 0, dependent unconditional: 94, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 25729, independent: 15480, independent conditional: 0, independent unconditional: 15480, dependent: 711, dependent conditional: 0, dependent unconditional: 711, unknown: 9538, unknown conditional: 0, unknown unconditional: 9538] , Statistics on independence cache: Total cache size (in pairs): 615, Positive cache size: 573, Positive conditional cache size: 0, Positive unconditional cache size: 573, Negative cache size: 42, Negative conditional cache size: 0, Negative unconditional cache size: 42, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 5.3s, 249 PlacesBefore, 61 PlacesAfterwards, 264 TransitionsBefore, 64 TransitionsAfterwards, 16094 CoEnabledTransitionPairs, 7 FixpointIterations, 48 TrivialSequentialCompositions, 179 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 41 ConcurrentYvCompositions, 12 ChoiceCompositions, 284 TotalNumberOfCompositions, 40755 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 20619, independent: 20030, independent conditional: 0, independent unconditional: 20030, dependent: 589, dependent conditional: 0, dependent unconditional: 589, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 9355, independent: 9266, independent conditional: 0, independent unconditional: 9266, dependent: 89, dependent conditional: 0, dependent unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 20619, independent: 10764, independent conditional: 0, independent unconditional: 10764, dependent: 500, dependent conditional: 0, dependent unconditional: 500, unknown: 9355, unknown conditional: 0, unknown unconditional: 9355] , Statistics on independence cache: Total cache size (in pairs): 505, Positive cache size: 463, Positive conditional cache size: 0, Positive unconditional cache size: 463, 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 with 1 thread instances CFG has 5 procedures, 426 locations, 36 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 11.7s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 6.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 995 SdHoareTripleChecker+Valid, 1.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 512 mSDsluCounter, 100 SdHoareTripleChecker+Invalid, 1.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 159 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1661 IncrementalHoareTripleChecker+Invalid, 1820 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 159 mSolverCounterUnsat, 100 mSDtfsCounter, 1661 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=336occurred 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 - 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: 5.5s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 34 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 2 SdHoareTripleChecker+Invalid, 0.0s 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=145occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s 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 - AllSpecificationsHoldResult: All specifications hold 20 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-08-29 01:10:31,689 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