/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.repeated-lipton-a802222-m [2022-12-13 12:06:48,947 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 12:06:48,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 12:06:48,977 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 12:06:48,977 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 12:06:48,979 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 12:06:48,981 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 12:06:48,984 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 12:06:48,987 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 12:06:48,987 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 12:06:48,988 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 12:06:48,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 12:06:48,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 12:06:48,989 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 12:06:48,990 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 12:06:48,991 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 12:06:48,993 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 12:06:48,993 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 12:06:48,995 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 12:06:48,997 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 12:06:48,998 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 12:06:49,000 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 12:06:49,000 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 12:06:49,001 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 12:06:49,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-12-13 12:06:49,009 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 12:06:49,009 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 12:06:49,011 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 12:06:49,011 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 12:06:49,012 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 12:06:49,012 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 12:06:49,012 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 12:06:49,012 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 12:06:49,012 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 12:06:49,013 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 12:06:49,013 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 12:06:49,016 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithDisjunctivePredicates.epf [2022-12-13 12:06:49,039 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 12:06:49,040 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 12:06:49,041 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 12:06:49,041 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 12:06:49,041 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 12:06:49,042 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 12:06:49,042 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 12:06:49,042 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 12:06:49,042 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 12:06:49,042 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 12:06:49,043 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-13 12:06:49,043 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 12:06:49,043 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-13 12:06:49,043 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 12:06:49,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-13 12:06:49,043 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 12:06:49,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-13 12:06:49,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 12:06:49,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 12:06:49,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-13 12:06:49,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 12:06:49,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:06:49,044 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 12:06:49,044 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 12:06:49,044 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 12:06:49,044 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-13 12:06:49,045 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 12:06:49,045 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=REPEATED_LIPTON_PN [2022-12-13 12:06:49,045 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-13 12:06:49,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 12:06:49,349 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 12:06:49,351 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 12:06:49,351 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 12:06:49,352 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 12:06:49,352 INFO L432 ainManager$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 [2022-12-13 12:06:50,219 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 12:06:50,519 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 12:06:50,520 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2022-12-13 12:06:50,538 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ba74fee/3a1e6f0aa7c84ae3919924f2ca62cb8c/FLAG563e512a1 [2022-12-13 12:06:50,552 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39ba74fee/3a1e6f0aa7c84ae3919924f2ca62cb8c [2022-12-13 12:06:50,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 12:06:50,556 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-13 12:06:50,557 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 12:06:50,557 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 12:06:50,559 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 12:06:50,559 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:06:50" (1/1) ... [2022-12-13 12:06:50,560 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7cdba4cc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:50, skipping insertion in model container [2022-12-13 12:06:50,560 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 12:06:50" (1/1) ... [2022-12-13 12:06:50,564 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 12:06:50,614 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 12:06:51,058 WARN L237 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] [2022-12-13 12:06:51,097 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:06:51,108 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 12:06:51,155 WARN L237 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] [2022-12-13 12:06:51,170 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 12:06:51,277 INFO L208 MainTranslator]: Completed translation [2022-12-13 12:06:51,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51 WrapperNode [2022-12-13 12:06:51,277 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 12:06:51,278 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 12:06:51,279 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 12:06:51,279 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 12:06:51,284 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,341 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2022-12-13 12:06:51,341 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 12:06:51,342 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 12:06:51,342 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 12:06:51,342 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 12:06:51,349 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,349 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,355 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,365 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,368 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,370 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,375 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 12:06:51,376 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 12:06:51,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 12:06:51,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 12:06:51,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (1/1) ... [2022-12-13 12:06:51,380 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 12:06:51,389 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-13 12:06:51,398 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) [2022-12-13 12:06:51,427 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 [2022-12-13 12:06:51,443 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-12-13 12:06:51,447 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-12-13 12:06:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 12:06:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 12:06:51,448 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-12-13 12:06:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-12-13 12:06:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-13 12:06:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 12:06:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-13 12:06:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 12:06:51,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 12:06:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 12:06:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 12:06:51,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 12:06:51,450 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-13 12:06:51,716 INFO L236 CfgBuilder]: Building ICFG [2022-12-13 12:06:51,717 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 12:06:51,921 INFO L277 CfgBuilder]: Performing block encoding [2022-12-13 12:06:51,926 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 12:06:51,926 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-13 12:06:51,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:06:51 BoogieIcfgContainer [2022-12-13 12:06:51,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 12:06:51,929 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 12:06:51,929 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 12:06:51,931 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 12:06:51,931 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 12:06:50" (1/3) ... [2022-12-13 12:06:51,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342dd58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:06:51, skipping insertion in model container [2022-12-13 12:06:51,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 12:06:51" (2/3) ... [2022-12-13 12:06:51,932 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@342dd58a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 12:06:51, skipping insertion in model container [2022-12-13 12:06:51,932 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 12:06:51" (3/3) ... [2022-12-13 12:06:51,932 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-12-13 12:06:51,944 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 12:06:51,945 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-13 12:06:51,945 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 12:06:52,026 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-13 12:06:52,062 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 296 transitions, 622 flow [2022-12-13 12:06:52,145 INFO L130 PetriNetUnfolder]: 33/303 cut-off events. [2022-12-13 12:06:52,145 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:06:52,151 INFO L83 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 303 events. 33/303 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 727 event pairs, 0 based on Foata normal form. 0/257 useless extension candidates. Maximal degree in co-relation 204. Up to 11 conditions per place. [2022-12-13 12:06:52,151 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 296 transitions, 622 flow [2022-12-13 12:06:52,158 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 203 transitions, 423 flow [2022-12-13 12:06:52,159 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:06:52,170 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 203 transitions, 423 flow [2022-12-13 12:06:52,173 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 203 transitions, 423 flow [2022-12-13 12:06:52,210 INFO L130 PetriNetUnfolder]: 31/290 cut-off events. [2022-12-13 12:06:52,210 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-13 12:06:52,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 290 events. 31/290 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 651 event pairs, 0 based on Foata normal form. 0/247 useless extension candidates. Maximal degree in co-relation 204. Up to 11 conditions per place. [2022-12-13 12:06:52,217 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 203 transitions, 423 flow [2022-12-13 12:06:52,217 INFO L226 LiptonReduction]: Number of co-enabled transitions 8530 [2022-12-13 12:07:00,618 INFO L241 LiptonReduction]: Total number of compositions: 180 [2022-12-13 12:07:00,628 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 12:07:00,632 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=false, mAutomataTypeConcurrency=REPEATED_LIPTON_PN, 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;@5ecc28e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-13 12:07:00,632 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-13 12:07:00,633 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:07:00,633 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:07:00,633 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:07:00,634 INFO L214 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 12:07:00,634 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 12:07:00,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:00,637 INFO L85 PathProgramCache]: Analyzing trace with hash 1024, now seen corresponding path program 1 times [2022-12-13 12:07:00,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:00,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770325856] [2022-12-13 12:07:00,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:00,643 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:00,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:00,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:00,803 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:00,804 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1770325856] [2022-12-13 12:07:00,804 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1770325856] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:00,804 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:00,804 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 12:07:00,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119333737] [2022-12-13 12:07:00,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:00,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:07:00,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:00,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:07:00,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:07:00,824 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 136 [2022-12-13 12:07:00,826 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 136 transitions, 289 flow. Second operand has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:00,826 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:07:00,826 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 136 [2022-12-13 12:07:00,826 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:07:02,995 INFO L130 PetriNetUnfolder]: 29359/41877 cut-off events. [2022-12-13 12:07:02,995 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2022-12-13 12:07:03,031 INFO L83 FinitePrefix]: Finished finitePrefix Result has 82807 conditions, 41877 events. 29359/41877 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 7134. Compared 326817 event pairs, 19861 based on Foata normal form. 0/5042 useless extension candidates. Maximal degree in co-relation 80879. Up to 40668 conditions per place. [2022-12-13 12:07:03,100 INFO L137 encePairwiseOnDemand]: 125/136 looper letters, 110 selfloop transitions, 0 changer transitions 2/125 dead transitions. [2022-12-13 12:07:03,100 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 125 transitions, 491 flow [2022-12-13 12:07:03,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:07:03,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:07:03,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 149 transitions. [2022-12-13 12:07:03,108 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5477941176470589 [2022-12-13 12:07:03,109 INFO L175 Difference]: Start difference. First operand has 128 places, 136 transitions, 289 flow. Second operand 2 states and 149 transitions. [2022-12-13 12:07:03,109 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 125 transitions, 491 flow [2022-12-13 12:07:03,114 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 125 transitions, 487 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:07:03,116 INFO L231 Difference]: Finished difference. Result has 119 places, 123 transitions, 259 flow [2022-12-13 12:07:03,117 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=136, PETRI_DIFFERENCE_MINUEND_FLOW=263, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=125, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=259, PETRI_PLACES=119, PETRI_TRANSITIONS=123} [2022-12-13 12:07:03,120 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -9 predicate places. [2022-12-13 12:07:03,120 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:07:03,120 INFO L89 Accepts]: Start accepts. Operand has 119 places, 123 transitions, 259 flow [2022-12-13 12:07:03,122 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:07:03,122 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:07:03,122 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 123 transitions, 259 flow [2022-12-13 12:07:03,123 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 118 places, 123 transitions, 259 flow [2022-12-13 12:07:03,136 INFO L130 PetriNetUnfolder]: 15/200 cut-off events. [2022-12-13 12:07:03,137 INFO L131 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-12-13 12:07:03,137 INFO L83 FinitePrefix]: Finished finitePrefix Result has 208 conditions, 200 events. 15/200 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1299 event pairs, 0 based on Foata normal form. 0/30 useless extension candidates. Maximal degree in co-relation 157. Up to 6 conditions per place. [2022-12-13 12:07:03,141 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 118 places, 123 transitions, 259 flow [2022-12-13 12:07:03,141 INFO L226 LiptonReduction]: Number of co-enabled transitions 5748 [2022-12-13 12:07:03,497 INFO L241 LiptonReduction]: Total number of compositions: 2 [2022-12-13 12:07:03,500 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 379 [2022-12-13 12:07:03,502 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 121 transitions, 255 flow [2022-12-13 12:07:03,502 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.5) internal successors, (27), 2 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:03,503 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:07:03,503 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2022-12-13 12:07:03,504 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 12:07:03,504 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 12:07:03,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:03,507 INFO L85 PathProgramCache]: Analyzing trace with hash 994068252, now seen corresponding path program 1 times [2022-12-13 12:07:03,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:03,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36505210] [2022-12-13 12:07:03,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:03,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:03,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:03,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:03,632 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [36505210] [2022-12-13 12:07:03,632 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [36505210] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:03,632 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:03,632 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:07:03,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686714163] [2022-12-13 12:07:03,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:03,633 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:07:03,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:03,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:07:03,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:07:03,634 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 121 [2022-12-13 12:07:03,634 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 121 transitions, 255 flow. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:03,634 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:07:03,634 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 121 [2022-12-13 12:07:03,634 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:07:05,554 INFO L130 PetriNetUnfolder]: 32834/46930 cut-off events. [2022-12-13 12:07:05,554 INFO L131 PetriNetUnfolder]: For 85/85 co-relation queries the response was YES. [2022-12-13 12:07:05,588 INFO L83 FinitePrefix]: Finished finitePrefix Result has 93269 conditions, 46930 events. 32834/46930 cut-off events. For 85/85 co-relation queries the response was YES. Maximal size of possible extension queue 7815. Compared 368240 event pairs, 19690 based on Foata normal form. 0/5268 useless extension candidates. Maximal degree in co-relation 28832. Up to 41224 conditions per place. [2022-12-13 12:07:05,645 INFO L137 encePairwiseOnDemand]: 100/121 looper letters, 140 selfloop transitions, 19 changer transitions 0/167 dead transitions. [2022-12-13 12:07:05,646 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 167 transitions, 666 flow [2022-12-13 12:07:05,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:07:05,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:07:05,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 185 transitions. [2022-12-13 12:07:05,647 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.509641873278237 [2022-12-13 12:07:05,648 INFO L175 Difference]: Start difference. First operand has 116 places, 121 transitions, 255 flow. Second operand 3 states and 185 transitions. [2022-12-13 12:07:05,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 167 transitions, 666 flow [2022-12-13 12:07:05,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 167 transitions, 666 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 12:07:05,651 INFO L231 Difference]: Finished difference. Result has 120 places, 138 transitions, 403 flow [2022-12-13 12:07:05,651 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=255, PETRI_DIFFERENCE_MINUEND_PLACES=116, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=102, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=403, PETRI_PLACES=120, PETRI_TRANSITIONS=138} [2022-12-13 12:07:05,652 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -8 predicate places. [2022-12-13 12:07:05,652 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:07:05,652 INFO L89 Accepts]: Start accepts. Operand has 120 places, 138 transitions, 403 flow [2022-12-13 12:07:05,653 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:07:05,653 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:07:05,653 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 120 places, 138 transitions, 403 flow [2022-12-13 12:07:05,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 120 places, 138 transitions, 403 flow [2022-12-13 12:07:05,697 INFO L130 PetriNetUnfolder]: 233/649 cut-off events. [2022-12-13 12:07:05,697 INFO L131 PetriNetUnfolder]: For 26/26 co-relation queries the response was YES. [2022-12-13 12:07:05,698 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1154 conditions, 649 events. 233/649 cut-off events. For 26/26 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 4504 event pairs, 0 based on Foata normal form. 0/129 useless extension candidates. Maximal degree in co-relation 1039. Up to 305 conditions per place. [2022-12-13 12:07:05,703 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 120 places, 138 transitions, 403 flow [2022-12-13 12:07:05,703 INFO L226 LiptonReduction]: Number of co-enabled transitions 6074 [2022-12-13 12:07:05,704 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:07:05,705 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 53 [2022-12-13 12:07:05,705 INFO L495 AbstractCegarLoop]: Abstraction has has 120 places, 138 transitions, 403 flow [2022-12-13 12:07:05,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:05,706 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:07:05,706 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:07:05,706 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 12:07:05,706 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 12:07:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:05,706 INFO L85 PathProgramCache]: Analyzing trace with hash 504083356, now seen corresponding path program 1 times [2022-12-13 12:07:05,706 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:05,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013598482] [2022-12-13 12:07:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:05,707 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:05,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:05,780 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013598482] [2022-12-13 12:07:05,782 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013598482] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:05,782 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:05,782 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:07:05,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616319800] [2022-12-13 12:07:05,783 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:05,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:07:05,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:05,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:07:05,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:07:05,784 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 121 [2022-12-13 12:07:05,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 120 places, 138 transitions, 403 flow. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:05,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:07:05,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 121 [2022-12-13 12:07:05,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:07:07,228 INFO L130 PetriNetUnfolder]: 23481/33996 cut-off events. [2022-12-13 12:07:07,228 INFO L131 PetriNetUnfolder]: For 1764/1764 co-relation queries the response was YES. [2022-12-13 12:07:07,256 INFO L83 FinitePrefix]: Finished finitePrefix Result has 75690 conditions, 33996 events. 23481/33996 cut-off events. For 1764/1764 co-relation queries the response was YES. Maximal size of possible extension queue 5504. Compared 261149 event pairs, 9838 based on Foata normal form. 405/6109 useless extension candidates. Maximal degree in co-relation 50873. Up to 20868 conditions per place. [2022-12-13 12:07:07,290 INFO L137 encePairwiseOnDemand]: 95/121 looper letters, 122 selfloop transitions, 4 changer transitions 46/182 dead transitions. [2022-12-13 12:07:07,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 182 transitions, 845 flow [2022-12-13 12:07:07,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:07:07,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:07:07,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 203 transitions. [2022-12-13 12:07:07,292 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.559228650137741 [2022-12-13 12:07:07,292 INFO L175 Difference]: Start difference. First operand has 120 places, 138 transitions, 403 flow. Second operand 3 states and 203 transitions. [2022-12-13 12:07:07,292 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 121 places, 182 transitions, 845 flow [2022-12-13 12:07:07,318 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 117 places, 182 transitions, 801 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-12-13 12:07:07,321 INFO L231 Difference]: Finished difference. Result has 119 places, 123 transitions, 357 flow [2022-12-13 12:07:07,321 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=121, PETRI_DIFFERENCE_MINUEND_FLOW=355, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=133, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=357, PETRI_PLACES=119, PETRI_TRANSITIONS=123} [2022-12-13 12:07:07,322 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -9 predicate places. [2022-12-13 12:07:07,322 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:07:07,322 INFO L89 Accepts]: Start accepts. Operand has 119 places, 123 transitions, 357 flow [2022-12-13 12:07:07,323 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:07:07,323 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:07:07,323 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 123 transitions, 357 flow [2022-12-13 12:07:07,324 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 106 places, 123 transitions, 357 flow [2022-12-13 12:07:07,352 INFO L130 PetriNetUnfolder]: 224/731 cut-off events. [2022-12-13 12:07:07,353 INFO L131 PetriNetUnfolder]: For 3/8 co-relation queries the response was YES. [2022-12-13 12:07:07,354 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1113 conditions, 731 events. 224/731 cut-off events. For 3/8 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 5588 event pairs, 40 based on Foata normal form. 5/137 useless extension candidates. Maximal degree in co-relation 1043. Up to 305 conditions per place. [2022-12-13 12:07:07,358 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 106 places, 123 transitions, 357 flow [2022-12-13 12:07:07,358 INFO L226 LiptonReduction]: Number of co-enabled transitions 4922 [2022-12-13 12:07:07,362 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [1031] ieee80211_register_hw_returnLabel#1-->L1746-1: Formula: (and (= |v_thread_usbThread1of1ForFork0_~probe_ret~0#1_69| 0) (= |v_thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1_115| 0) (= 0 |v_thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1_89|) (= |v_thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1_91| |v_thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1_115|) (= v_~ldv_usb_state~0_213 1)) InVars {thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1=|v_thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1_91|} OutVars{thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1=|v_thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1_115|, thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1=|v_thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1_89|, thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret39#1=|v_thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret39#1_125|, thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1=|v_thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1_91|, thread_usbThread1of1ForFork0_~probe_ret~0#1=|v_thread_usbThread1of1ForFork0_~probe_ret~0#1_69|, thread_usbThread1of1ForFork0_#t~ret42#1=|v_thread_usbThread1of1ForFork0_#t~ret42#1_85|, ~ldv_usb_state~0=v_~ldv_usb_state~0_213} AuxVars[] AssignedVars[thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1, thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1, thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret39#1, thread_usbThread1of1ForFork0_~probe_ret~0#1, thread_usbThread1of1ForFork0_#t~ret42#1, ~ldv_usb_state~0] and [1018] L1724-2-->L1745-2: Formula: (let ((.cse0 (= v_~pdev~0_260 8))) (and (= (ite .cse0 1 0) |v_thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1_71|) (= v_~ldv_usb_state~0_189 0) (= |v_thread_usbThread1of1ForFork0_ldv_assert_~expression#1_95| |v_thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1_71|) .cse0 (= (store |v_#valid_195| |v_thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base_108| 0) |v_#valid_194|))) InVars {thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base=|v_thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base_108|, #valid=|v_#valid_195|} OutVars{thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.offset=|v_thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.offset_73|, ~pdev~0=v_~pdev~0_260, thread_usbThread1of1ForFork0_#t~nondet40#1=|v_thread_usbThread1of1ForFork0_#t~nondet40#1_211|, #valid=|v_#valid_194|, thread_usbThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_usbThread1of1ForFork0_ldv_assert_~expression#1_95|, thread_usbThread1of1ForFork0_#t~switch41#1=|v_thread_usbThread1of1ForFork0_#t~switch41#1_353|, thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1_71|, ~ldv_usb_state~0=v_~ldv_usb_state~0_189} AuxVars[] AssignedVars[thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base, thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.offset, ~pdev~0, thread_usbThread1of1ForFork0_#t~nondet40#1, #valid, thread_usbThread1of1ForFork0_ldv_assert_~expression#1, thread_usbThread1of1ForFork0_#t~switch41#1, thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1, ~ldv_usb_state~0] [2022-12-13 12:07:07,418 ERROR L112 fgCompositionFactory]: Composing non-subsequent actions: [1032] ieee80211_register_hw_returnLabel#1-->L1746-2: Formula: (and (= |v_thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1_117| 0) (= |v_thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1_93| |v_thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1_117|) (= v_~ldv_usb_state~0_215 1) (= |v_thread_usbThread1of1ForFork0_~probe_ret~0#1_71| |v_thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1_91|) (= |v_thread_usbThread1of1ForFork0_~probe_ret~0#1_71| 0)) InVars {thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1=|v_thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1_93|} OutVars{thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1=|v_thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1_117|, thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1=|v_thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1_91|, thread_usbThread1of1ForFork0_#t~nondet40#1=|v_thread_usbThread1of1ForFork0_#t~nondet40#1_227|, thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret39#1=|v_thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret39#1_127|, thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1=|v_thread_usbThread1of1ForFork0_ieee80211_register_hw_#res#1_93|, thread_usbThread1of1ForFork0_~probe_ret~0#1=|v_thread_usbThread1of1ForFork0_~probe_ret~0#1_71|, thread_usbThread1of1ForFork0_#t~ret42#1=|v_thread_usbThread1of1ForFork0_#t~ret42#1_89|, ~ldv_usb_state~0=v_~ldv_usb_state~0_215} AuxVars[] AssignedVars[thread_usbThread1of1ForFork0_ath_ahb_probe_~error~0#1, thread_usbThread1of1ForFork0_ath_ahb_probe_#res#1, thread_usbThread1of1ForFork0_#t~nondet40#1, thread_usbThread1of1ForFork0_ath_ahb_probe_#t~ret39#1, thread_usbThread1of1ForFork0_~probe_ret~0#1, thread_usbThread1of1ForFork0_#t~ret42#1, ~ldv_usb_state~0] and [1018] L1724-2-->L1745-2: Formula: (let ((.cse0 (= v_~pdev~0_260 8))) (and (= (ite .cse0 1 0) |v_thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1_71|) (= v_~ldv_usb_state~0_189 0) (= |v_thread_usbThread1of1ForFork0_ldv_assert_~expression#1_95| |v_thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1_71|) .cse0 (= (store |v_#valid_195| |v_thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base_108| 0) |v_#valid_194|))) InVars {thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base=|v_thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base_108|, #valid=|v_#valid_195|} OutVars{thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.offset=|v_thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.offset_73|, ~pdev~0=v_~pdev~0_260, thread_usbThread1of1ForFork0_#t~nondet40#1=|v_thread_usbThread1of1ForFork0_#t~nondet40#1_211|, #valid=|v_#valid_194|, thread_usbThread1of1ForFork0_ldv_assert_~expression#1=|v_thread_usbThread1of1ForFork0_ldv_assert_~expression#1_95|, thread_usbThread1of1ForFork0_#t~switch41#1=|v_thread_usbThread1of1ForFork0_#t~switch41#1_353|, thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1=|v_thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1_71|, ~ldv_usb_state~0=v_~ldv_usb_state~0_189} AuxVars[] AssignedVars[thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.base, thread_usbThread1of1ForFork0_ieee80211_deregister_hw_~#status~0#1.offset, ~pdev~0, thread_usbThread1of1ForFork0_#t~nondet40#1, #valid, thread_usbThread1of1ForFork0_ldv_assert_~expression#1, thread_usbThread1of1ForFork0_#t~switch41#1, thread_usbThread1of1ForFork0_ldv_assert_#in~expression#1, ~ldv_usb_state~0] [2022-12-13 12:07:07,479 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:07:07,480 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 158 [2022-12-13 12:07:07,480 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 123 transitions, 361 flow [2022-12-13 12:07:07,480 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:07,480 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:07:07,480 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:07:07,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 12:07:07,481 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 12:07:07,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:07,481 INFO L85 PathProgramCache]: Analyzing trace with hash 503897497, now seen corresponding path program 1 times [2022-12-13 12:07:07,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:07,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498938504] [2022-12-13 12:07:07,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:07,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:07,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:07,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:07,592 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:07,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498938504] [2022-12-13 12:07:07,592 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498938504] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:07,592 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:07,592 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:07:07,592 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902381920] [2022-12-13 12:07:07,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:07,592 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:07:07,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:07,594 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:07:07,594 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:07:07,594 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 106 [2022-12-13 12:07:07,594 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 123 transitions, 361 flow. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:07,595 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:07:07,595 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 106 [2022-12-13 12:07:07,596 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:07:08,953 INFO L130 PetriNetUnfolder]: 22220/32397 cut-off events. [2022-12-13 12:07:08,954 INFO L131 PetriNetUnfolder]: For 938/938 co-relation queries the response was YES. [2022-12-13 12:07:08,978 INFO L83 FinitePrefix]: Finished finitePrefix Result has 71908 conditions, 32397 events. 22220/32397 cut-off events. For 938/938 co-relation queries the response was YES. Maximal size of possible extension queue 5461. Compared 248848 event pairs, 11335 based on Foata normal form. 0/5825 useless extension candidates. Maximal degree in co-relation 45566. Up to 24532 conditions per place. [2022-12-13 12:07:09,000 INFO L137 encePairwiseOnDemand]: 89/106 looper letters, 85 selfloop transitions, 15 changer transitions 76/184 dead transitions. [2022-12-13 12:07:09,001 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 184 transitions, 858 flow [2022-12-13 12:07:09,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:07:09,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:07:09,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 188 transitions. [2022-12-13 12:07:09,002 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5911949685534591 [2022-12-13 12:07:09,002 INFO L175 Difference]: Start difference. First operand has 106 places, 123 transitions, 361 flow. Second operand 3 states and 188 transitions. [2022-12-13 12:07:09,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 184 transitions, 858 flow [2022-12-13 12:07:09,012 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 106 places, 184 transitions, 852 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 12:07:09,013 INFO L231 Difference]: Finished difference. Result has 107 places, 93 transitions, 332 flow [2022-12-13 12:07:09,013 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=106, PETRI_DIFFERENCE_MINUEND_FLOW=341, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=106, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=332, PETRI_PLACES=107, PETRI_TRANSITIONS=93} [2022-12-13 12:07:09,014 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -21 predicate places. [2022-12-13 12:07:09,014 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:07:09,014 INFO L89 Accepts]: Start accepts. Operand has 107 places, 93 transitions, 332 flow [2022-12-13 12:07:09,014 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:07:09,014 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:07:09,014 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 93 transitions, 332 flow [2022-12-13 12:07:09,015 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 93 transitions, 332 flow [2022-12-13 12:07:09,041 INFO L130 PetriNetUnfolder]: 144/594 cut-off events. [2022-12-13 12:07:09,041 INFO L131 PetriNetUnfolder]: For 67/90 co-relation queries the response was YES. [2022-12-13 12:07:09,042 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1047 conditions, 594 events. 144/594 cut-off events. For 67/90 co-relation queries the response was YES. Maximal size of possible extension queue 138. Compared 4987 event pairs, 16 based on Foata normal form. 5/169 useless extension candidates. Maximal degree in co-relation 975. Up to 260 conditions per place. [2022-12-13 12:07:09,045 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 93 transitions, 332 flow [2022-12-13 12:07:09,045 INFO L226 LiptonReduction]: Number of co-enabled transitions 2562 [2022-12-13 12:07:09,045 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:07:09,046 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 32 [2022-12-13 12:07:09,046 INFO L495 AbstractCegarLoop]: Abstraction has has 79 places, 93 transitions, 332 flow [2022-12-13 12:07:09,046 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:09,046 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:07:09,046 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:07:09,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 12:07:09,046 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 12:07:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:09,047 INFO L85 PathProgramCache]: Analyzing trace with hash -523628279, now seen corresponding path program 1 times [2022-12-13 12:07:09,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:09,047 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445252257] [2022-12-13 12:07:09,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:09,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:09,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:09,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:09,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:09,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [445252257] [2022-12-13 12:07:09,120 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [445252257] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:09,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:09,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:07:09,121 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [90276645] [2022-12-13 12:07:09,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:09,122 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 12:07:09,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:09,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 12:07:09,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 12:07:09,123 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 8 out of 76 [2022-12-13 12:07:09,123 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 93 transitions, 332 flow. Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:09,124 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:07:09,124 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 8 of 76 [2022-12-13 12:07:09,124 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:07:09,625 INFO L130 PetriNetUnfolder]: 7747/12256 cut-off events. [2022-12-13 12:07:09,625 INFO L131 PetriNetUnfolder]: For 1885/1885 co-relation queries the response was YES. [2022-12-13 12:07:09,635 INFO L83 FinitePrefix]: Finished finitePrefix Result has 29024 conditions, 12256 events. 7747/12256 cut-off events. For 1885/1885 co-relation queries the response was YES. Maximal size of possible extension queue 1604. Compared 91991 event pairs, 4997 based on Foata normal form. 0/4077 useless extension candidates. Maximal degree in co-relation 19544. Up to 11157 conditions per place. [2022-12-13 12:07:09,647 INFO L137 encePairwiseOnDemand]: 60/76 looper letters, 65 selfloop transitions, 23 changer transitions 22/118 dead transitions. [2022-12-13 12:07:09,647 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 118 transitions, 627 flow [2022-12-13 12:07:09,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 12:07:09,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 12:07:09,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 119 transitions. [2022-12-13 12:07:09,648 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5219298245614035 [2022-12-13 12:07:09,648 INFO L175 Difference]: Start difference. First operand has 79 places, 93 transitions, 332 flow. Second operand 3 states and 119 transitions. [2022-12-13 12:07:09,648 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 118 transitions, 627 flow [2022-12-13 12:07:09,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 118 transitions, 609 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-12-13 12:07:09,734 INFO L231 Difference]: Finished difference. Result has 81 places, 95 transitions, 414 flow [2022-12-13 12:07:09,734 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=76, PETRI_DIFFERENCE_MINUEND_FLOW=317, PETRI_DIFFERENCE_MINUEND_PLACES=78, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=93, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=414, PETRI_PLACES=81, PETRI_TRANSITIONS=95} [2022-12-13 12:07:09,735 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -47 predicate places. [2022-12-13 12:07:09,735 WARN L178 eatedLiptonReduction]: Counterexample is not a run of mAbstraction. Replaying acceptance of the word... [2022-12-13 12:07:09,735 INFO L89 Accepts]: Start accepts. Operand has 81 places, 95 transitions, 414 flow [2022-12-13 12:07:09,735 INFO L95 Accepts]: Finished accepts. [2022-12-13 12:07:09,736 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:07:09,736 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 95 transitions, 414 flow [2022-12-13 12:07:09,736 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 79 places, 95 transitions, 414 flow [2022-12-13 12:07:09,872 INFO L130 PetriNetUnfolder]: 172/632 cut-off events. [2022-12-13 12:07:09,872 INFO L131 PetriNetUnfolder]: For 103/121 co-relation queries the response was YES. [2022-12-13 12:07:09,873 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 632 events. 172/632 cut-off events. For 103/121 co-relation queries the response was YES. Maximal size of possible extension queue 179. Compared 5302 event pairs, 0 based on Foata normal form. 0/187 useless extension candidates. Maximal degree in co-relation 1475. Up to 306 conditions per place. [2022-12-13 12:07:09,876 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 79 places, 95 transitions, 414 flow [2022-12-13 12:07:09,876 INFO L226 LiptonReduction]: Number of co-enabled transitions 2432 [2022-12-13 12:07:09,947 INFO L241 LiptonReduction]: Total number of compositions: 1 [2022-12-13 12:07:09,948 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 213 [2022-12-13 12:07:09,948 INFO L495 AbstractCegarLoop]: Abstraction has has 78 places, 94 transitions, 412 flow [2022-12-13 12:07:09,948 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 3 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:09,948 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-13 12:07:09,948 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-13 12:07:09,948 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-13 12:07:09,948 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-13 12:07:09,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 12:07:09,949 INFO L85 PathProgramCache]: Analyzing trace with hash -1558920675, now seen corresponding path program 1 times [2022-12-13 12:07:09,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 12:07:09,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508203078] [2022-12-13 12:07:09,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 12:07:09,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 12:07:09,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 12:07:09,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 12:07:09,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 12:07:09,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508203078] [2022-12-13 12:07:09,976 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508203078] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 12:07:09,976 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 12:07:09,976 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-13 12:07:09,976 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251278525] [2022-12-13 12:07:09,976 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 12:07:09,977 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 12:07:09,977 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 12:07:09,977 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 12:07:09,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 12:07:09,977 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 9 out of 72 [2022-12-13 12:07:09,977 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 78 places, 94 transitions, 412 flow. Second operand has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:09,977 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 12:07:09,977 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 9 of 72 [2022-12-13 12:07:09,978 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 12:07:10,139 INFO L130 PetriNetUnfolder]: 1834/2818 cut-off events. [2022-12-13 12:07:10,139 INFO L131 PetriNetUnfolder]: For 891/891 co-relation queries the response was YES. [2022-12-13 12:07:10,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6740 conditions, 2818 events. 1834/2818 cut-off events. For 891/891 co-relation queries the response was YES. Maximal size of possible extension queue 500. Compared 17441 event pairs, 1159 based on Foata normal form. 171/1447 useless extension candidates. Maximal degree in co-relation 6733. Up to 2592 conditions per place. [2022-12-13 12:07:10,144 INFO L137 encePairwiseOnDemand]: 70/72 looper letters, 0 selfloop transitions, 0 changer transitions 47/47 dead transitions. [2022-12-13 12:07:10,144 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 53 places, 47 transitions, 216 flow [2022-12-13 12:07:10,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 12:07:10,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 12:07:10,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 60 transitions. [2022-12-13 12:07:10,145 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4166666666666667 [2022-12-13 12:07:10,145 INFO L175 Difference]: Start difference. First operand has 78 places, 94 transitions, 412 flow. Second operand 2 states and 60 transitions. [2022-12-13 12:07:10,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 53 places, 47 transitions, 216 flow [2022-12-13 12:07:10,147 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 50 places, 47 transitions, 189 flow, removed 12 selfloop flow, removed 3 redundant places. [2022-12-13 12:07:10,148 INFO L231 Difference]: Finished difference. Result has 50 places, 0 transitions, 0 flow [2022-12-13 12:07:10,148 INFO L277 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=109, PETRI_DIFFERENCE_MINUEND_PLACES=49, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=47, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=0, PETRI_PLACES=50, PETRI_TRANSITIONS=0} [2022-12-13 12:07:10,148 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -78 predicate places. [2022-12-13 12:07:10,148 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-13 12:07:10,148 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 0 transitions, 0 flow [2022-12-13 12:07:10,149 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 0 places, 0 transitions, 0 flow [2022-12-13 12:07:10,149 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 12:07:10,149 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 12:07:10,149 INFO L83 FinitePrefix]: Finished finitePrefix Result has 0 conditions, 0 events. 0/0 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 0. Compared 0 event pairs, 0 based on Foata normal form. 0/0 useless extension candidates. Maximal degree in co-relation 0. Up to 0 conditions per place. [2022-12-13 12:07:10,149 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 0 places, 0 transitions, 0 flow [2022-12-13 12:07:10,149 INFO L226 LiptonReduction]: Number of co-enabled transitions 0 [2022-12-13 12:07:10,149 INFO L241 LiptonReduction]: Total number of compositions: 0 [2022-12-13 12:07:10,150 INFO L158 eatedLiptonReduction]: Time needed for LBE in milliseconds: 2 [2022-12-13 12:07:10,150 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-13 12:07:10,150 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 13.0) internal successors, (26), 2 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 12:07:10,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-12-13 12:07:10,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2022-12-13 12:07:10,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2022-12-13 12:07:10,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2022-12-13 12:07:10,152 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-13 12:07:10,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-12-13 12:07:10,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2022-12-13 12:07:10,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-13 12:07:10,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2022-12-13 12:07:10,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2022-12-13 12:07:10,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2022-12-13 12:07:10,153 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-13 12:07:10,153 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-13 12:07:10,153 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-13 12:07:10,157 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 12:07:10,157 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 12:07:10,158 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 12:07:10 BasicIcfg [2022-12-13 12:07:10,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 12:07:10,159 INFO L158 Benchmark]: Toolchain (without parser) took 19603.15ms. Allocated memory was 194.0MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 167.5MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 674.6MB. Max. memory is 8.0GB. [2022-12-13 12:07:10,159 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory was 108.7MB in the beginning and 108.7MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-12-13 12:07:10,159 INFO L158 Benchmark]: CACSL2BoogieTranslator took 720.55ms. Allocated memory is still 194.0MB. Free memory was 167.1MB in the beginning and 147.1MB in the end (delta: 20.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. [2022-12-13 12:07:10,159 INFO L158 Benchmark]: Boogie Procedure Inliner took 62.84ms. Allocated memory is still 194.0MB. Free memory was 147.1MB in the beginning and 143.4MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-13 12:07:10,160 INFO L158 Benchmark]: Boogie Preprocessor took 33.66ms. Allocated memory is still 194.0MB. Free memory was 143.4MB in the beginning and 140.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-13 12:07:10,160 INFO L158 Benchmark]: RCFGBuilder took 552.04ms. Allocated memory is still 194.0MB. Free memory was 140.3MB in the beginning and 156.7MB in the end (delta: -16.4MB). Peak memory consumption was 23.4MB. Max. memory is 8.0GB. [2022-12-13 12:07:10,160 INFO L158 Benchmark]: TraceAbstraction took 18229.48ms. Allocated memory was 194.0MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 155.1MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 660.8MB. Max. memory is 8.0GB. [2022-12-13 12:07:10,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 127.9MB. Free memory was 108.7MB in the beginning and 108.7MB in the end (delta: 45.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 720.55ms. Allocated memory is still 194.0MB. Free memory was 167.1MB in the beginning and 147.1MB in the end (delta: 20.0MB). Peak memory consumption was 44.0MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 62.84ms. Allocated memory is still 194.0MB. Free memory was 147.1MB in the beginning and 143.4MB in the end (delta: 3.7MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.66ms. Allocated memory is still 194.0MB. Free memory was 143.4MB in the beginning and 140.3MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 552.04ms. Allocated memory is still 194.0MB. Free memory was 140.3MB in the beginning and 156.7MB in the end (delta: -16.4MB). Peak memory consumption was 23.4MB. Max. memory is 8.0GB. * TraceAbstraction took 18229.48ms. Allocated memory was 194.0MB in the beginning and 4.0GB in the end (delta: 3.8GB). Free memory was 155.1MB in the beginning and 3.3GB in the end (delta: -3.1GB). Peak memory consumption was 660.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.4s, 188 PlacesBefore, 128 PlacesAfterwards, 203 TransitionsBefore, 136 TransitionsAfterwards, 8530 CoEnabledTransitionPairs, 4 FixpointIterations, 0 TrivialSequentialCompositions, 4 ConcurrentSequentialCompositions, 46 TrivialYvCompositions, 108 ConcurrentYvCompositions, 22 ChoiceCompositions, 180 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 20573, independent: 20409, independent conditional: 20409, independent unconditional: 0, dependent: 164, dependent conditional: 164, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 20573, independent: 20409, independent conditional: 0, independent unconditional: 20409, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 20573, independent: 20409, independent conditional: 0, independent unconditional: 20409, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 20573, independent: 20409, independent conditional: 0, independent unconditional: 20409, dependent: 164, dependent conditional: 0, dependent unconditional: 164, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 8578, independent: 8533, independent conditional: 0, independent unconditional: 8533, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 8578, independent: 8501, independent conditional: 0, independent unconditional: 8501, dependent: 77, dependent conditional: 0, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 77, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 45, dependent conditional: 0, dependent unconditional: 45, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 149, independent: 83, independent conditional: 0, independent unconditional: 83, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 20573, independent: 11876, independent conditional: 0, independent unconditional: 11876, dependent: 119, dependent conditional: 0, dependent unconditional: 119, unknown: 8578, unknown conditional: 0, unknown unconditional: 8578] , Statistics on independence cache: Total cache size (in pairs): 35351, Positive cache size: 35306, Positive conditional cache size: 0, Positive unconditional cache size: 35306, Negative cache size: 45, Negative conditional cache size: 0, Negative unconditional cache size: 45, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.4s, 118 PlacesBefore, 116 PlacesAfterwards, 123 TransitionsBefore, 121 TransitionsAfterwards, 5748 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 0 ChoiceCompositions, 2 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1144, independent: 1083, independent conditional: 1083, independent unconditional: 0, dependent: 61, dependent conditional: 61, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 1144, independent: 1083, independent conditional: 0, independent unconditional: 1083, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 1144, independent: 1083, independent conditional: 0, independent unconditional: 1083, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1144, independent: 1083, independent conditional: 0, independent unconditional: 1083, dependent: 61, dependent conditional: 0, dependent unconditional: 61, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 620, independent: 600, independent conditional: 0, independent unconditional: 600, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 620, independent: 598, independent conditional: 0, independent unconditional: 598, dependent: 22, dependent conditional: 0, dependent unconditional: 22, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 22, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 41, independent: 7, independent conditional: 0, independent unconditional: 7, dependent: 33, dependent conditional: 0, dependent unconditional: 33, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1144, independent: 483, independent conditional: 0, independent unconditional: 483, dependent: 41, dependent conditional: 0, dependent unconditional: 41, unknown: 620, unknown conditional: 0, unknown unconditional: 620] , Statistics on independence cache: Total cache size (in pairs): 725, Positive cache size: 705, Positive conditional cache size: 0, Positive unconditional cache size: 705, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 120 PlacesBefore, 120 PlacesAfterwards, 138 TransitionsBefore, 138 TransitionsAfterwards, 6074 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 152, independent: 148, independent conditional: 148, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 152, independent: 148, independent conditional: 6, independent unconditional: 142, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 152, independent: 148, independent conditional: 3, independent unconditional: 145, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 152, independent: 148, independent conditional: 3, independent unconditional: 145, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 152, independent: 148, independent conditional: 3, independent unconditional: 145, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 725, Positive cache size: 705, Positive conditional cache size: 0, Positive unconditional cache size: 705, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 3, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 106 PlacesBefore, 106 PlacesAfterwards, 123 TransitionsBefore, 123 TransitionsAfterwards, 4922 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 1 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 350, independent: 338, independent conditional: 338, independent unconditional: 0, dependent: 12, dependent conditional: 12, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 350, independent: 338, independent conditional: 14, independent unconditional: 324, dependent: 12, dependent conditional: 4, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 350, independent: 338, independent conditional: 0, independent unconditional: 338, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 350, independent: 338, independent conditional: 0, independent unconditional: 338, dependent: 12, dependent conditional: 0, dependent unconditional: 12, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 84, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 84, independent: 82, independent conditional: 0, independent unconditional: 82, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 2, dependent conditional: 0, dependent unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 6, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 6, dependent conditional: 0, dependent unconditional: 6, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 350, independent: 256, independent conditional: 0, independent unconditional: 256, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 84, unknown conditional: 0, unknown unconditional: 84] , Statistics on independence cache: Total cache size (in pairs): 809, Positive cache size: 787, Positive conditional cache size: 0, Positive unconditional cache size: 787, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 18, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 79 PlacesBefore, 79 PlacesAfterwards, 93 TransitionsBefore, 93 TransitionsAfterwards, 2562 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79, independent: 75, independent conditional: 75, independent unconditional: 0, dependent: 4, dependent conditional: 4, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 79, independent: 75, independent conditional: 1, independent unconditional: 74, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 79, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 79, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 79, independent: 75, independent conditional: 0, independent unconditional: 75, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 809, Positive cache size: 787, Positive conditional cache size: 0, Positive unconditional cache size: 787, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.1s, 79 PlacesBefore, 78 PlacesAfterwards, 95 TransitionsBefore, 94 TransitionsAfterwards, 2432 CoEnabledTransitionPairs, 2 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 0 ChoiceCompositions, 1 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 271, independent: 263, independent conditional: 263, independent unconditional: 0, dependent: 8, dependent conditional: 8, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 271, independent: 263, independent conditional: 1, independent unconditional: 262, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 271, independent: 263, independent conditional: 0, independent unconditional: 263, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 271, independent: 263, independent conditional: 0, independent unconditional: 263, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 32, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 32, independent: 32, independent conditional: 0, independent unconditional: 32, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 271, independent: 231, independent conditional: 0, independent unconditional: 231, dependent: 8, dependent conditional: 0, dependent unconditional: 8, unknown: 32, unknown conditional: 0, unknown unconditional: 32] , Statistics on independence cache: Total cache size (in pairs): 875, Positive cache size: 853, Positive conditional cache size: 0, Positive unconditional cache size: 853, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 1, Maximal queried relation: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.0s, 0 PlacesBefore, 0 PlacesAfterwards, 0 TransitionsBefore, 0 TransitionsAfterwards, 0 CoEnabledTransitionPairs, 1 FixpointIterations, 0 TrivialSequentialCompositions, 0 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 0 TotalNumberOfCompositions, Independence Relation Statistics: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, independent: 0, independent conditional: 0, independent unconditional: 0, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 875, Positive cache size: 853, Positive conditional cache size: 0, Positive unconditional cache size: 853, Negative cache size: 22, Negative conditional cache size: 0, Negative unconditional cache size: 22, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 290 locations, 12 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: 18.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 149 SdHoareTripleChecker+Valid, 0.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 149 mSDsluCounter, 4 SdHoareTripleChecker+Invalid, 0.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 44 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1072 IncrementalHoareTripleChecker+Invalid, 1116 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 44 mSolverCounterUnsat, 4 mSDtfsCounter, 1072 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=414occurred in iteration=5, InterpolantAutomatonStates: 16, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 35 ConstructedInterpolants, 0 QuantifiedInterpolants, 43 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 1/1 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-12-13 12:07:10,178 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...