/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-SemanticLbe.epf --traceabstraction.use.on-demand.petri.net.difference true --traceabstraction.size.reduction.to.apply.after.petri.net.difference REMOVE_DEAD -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 [2022-12-12 21:44:41,656 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-12 21:44:41,658 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-12 21:44:41,688 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-12-12 21:44:41,706 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-12 21:44:41,708 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-12 21:44:41,709 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-12 21:44:41,711 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-12 21:44:41,711 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-12 21:44:41,712 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-12 21:44:41,714 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-12 21:44:41,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-12 21:44:41,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-12 21:44:41,727 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-12 21:44:41,728 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-12 21:44:41,729 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-12 21:44:41,734 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-12 21:44:41,734 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-12 21:44:41,734 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-12 21:44:41,735 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-12 21:44:41,736 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-12 21:44:41,736 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-12 21:44:41,740 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-12 21:44:41,741 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-12 21:44:41,742 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-12 21:44:41,742 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-SemanticLbe.epf [2022-12-12 21:44:41,767 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-12 21:44:41,768 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-12 21:44:41,769 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-12 21:44:41,769 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-12 21:44:41,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-12 21:44:41,770 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-12 21:44:41,770 INFO L138 SettingsManager]: * Use SBE=true [2022-12-12 21:44:41,770 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-12 21:44:41,771 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-12 21:44:41,771 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-12 21:44:41,771 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-12 21:44:41,772 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-12 21:44:41,772 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-12 21:44:41,773 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-12 21:44:41,773 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-12 21:44:41,773 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-12 21:44:41,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:44:41,773 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-12 21:44:41,773 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-12 21:44:41,773 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-12 21:44:41,774 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-12 21:44:41,774 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-12 21:44:41,774 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-12 21:44:41,774 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use on-demand Petri net difference -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Size reduction to apply after Petri net difference -> REMOVE_DEAD [2022-12-12 21:44:42,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-12 21:44:42,065 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-12 21:44:42,066 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-12 21:44:42,067 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-12 21:44:42,068 INFO L275 PluginConnector]: CDTParser initialized [2022-12-12 21:44:42,068 INFO L432 ainManager$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 [2022-12-12 21:44:43,038 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-12 21:44:43,263 INFO L351 CDTParser]: Found 1 translation units. [2022-12-12 21:44:43,263 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2022-12-12 21:44:43,273 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5664160/75250be5930e4f17b0091acc8d335629/FLAGb9f90572a [2022-12-12 21:44:43,283 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f5664160/75250be5930e4f17b0091acc8d335629 [2022-12-12 21:44:43,285 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-12 21:44:43,285 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-12 21:44:43,286 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-12 21:44:43,286 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-12 21:44:43,288 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-12 21:44:43,289 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:43,289 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4fc6e158 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43, skipping insertion in model container [2022-12-12 21:44:43,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:43,293 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-12 21:44:43,328 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-12 21:44:43,725 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] [2022-12-12 21:44:43,774 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:44:43,785 INFO L203 MainTranslator]: Completed pre-run [2022-12-12 21:44:43,836 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] [2022-12-12 21:44:43,853 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-12 21:44:43,937 INFO L208 MainTranslator]: Completed translation [2022-12-12 21:44:43,938 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43 WrapperNode [2022-12-12 21:44:43,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-12 21:44:43,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-12 21:44:43,941 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-12 21:44:43,941 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-12 21:44:43,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:43,981 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,009 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2022-12-12 21:44:44,009 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-12 21:44:44,010 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-12 21:44:44,010 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-12 21:44:44,010 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-12 21:44:44,016 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,020 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,020 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,033 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,037 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,039 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,043 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-12 21:44:44,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-12 21:44:44,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-12 21:44:44,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-12 21:44:44,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (1/1) ... [2022-12-12 21:44:44,048 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-12 21:44:44,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-12 21:44:44,095 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) [2022-12-12 21:44:44,097 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 [2022-12-12 21:44:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-12-12 21:44:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-12-12 21:44:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-12 21:44:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-12 21:44:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-12-12 21:44:44,139 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-12-12 21:44:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-12 21:44:44,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-12 21:44:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-12 21:44:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-12 21:44:44,140 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-12 21:44:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-12 21:44:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-12 21:44:44,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-12 21:44:44,141 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-12 21:44:44,393 INFO L236 CfgBuilder]: Building ICFG [2022-12-12 21:44:44,394 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-12 21:44:44,642 INFO L277 CfgBuilder]: Performing block encoding [2022-12-12 21:44:44,648 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-12 21:44:44,648 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-12 21:44:44,649 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:44:44 BoogieIcfgContainer [2022-12-12 21:44:44,650 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-12 21:44:44,651 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-12 21:44:44,651 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-12 21:44:44,653 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-12 21:44:44,653 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.12 09:44:43" (1/3) ... [2022-12-12 21:44:44,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d24c3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:44:44, skipping insertion in model container [2022-12-12 21:44:44,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.12 09:44:43" (2/3) ... [2022-12-12 21:44:44,654 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d24c3d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.12 09:44:44, skipping insertion in model container [2022-12-12 21:44:44,654 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.12 09:44:44" (3/3) ... [2022-12-12 21:44:44,655 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-12-12 21:44:44,666 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-12 21:44:44,667 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-12 21:44:44,667 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-12 21:44:44,748 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-12 21:44:44,782 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 296 transitions, 622 flow [2022-12-12 21:44:44,886 INFO L130 PetriNetUnfolder]: 33/303 cut-off events. [2022-12-12 21:44:44,887 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 21:44:44,894 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. [2022-12-12 21:44:44,894 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 296 transitions, 622 flow [2022-12-12 21:44:44,900 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 203 transitions, 423 flow [2022-12-12 21:44:44,902 INFO L203 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2022-12-12 21:44:44,921 INFO L174 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 188 places, 203 transitions, 423 flow [2022-12-12 21:44:44,924 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 188 places, 203 transitions, 423 flow [2022-12-12 21:44:44,965 INFO L130 PetriNetUnfolder]: 31/290 cut-off events. [2022-12-12 21:44:44,965 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-12 21:44:44,970 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. [2022-12-12 21:44:44,982 INFO L222 LiptonReduction]: Starting Lipton reduction on Petri net that has 188 places, 203 transitions, 423 flow [2022-12-12 21:44:44,983 INFO L226 LiptonReduction]: Number of co-enabled transitions 8530 [2022-12-12 21:44:53,510 INFO L241 LiptonReduction]: Total number of compositions: 180 [2022-12-12 21:44:53,539 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-12 21:44:53,553 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=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@634901bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-12 21:44:53,554 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-12 21:44:53,554 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-12 21:44:53,554 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-12 21:44:53,555 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:53,555 INFO L214 CegarLoopForPetriNet]: trace histogram [1] [2022-12-12 21:44:53,555 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)] === [2022-12-12 21:44:53,558 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:53,558 INFO L85 PathProgramCache]: Analyzing trace with hash 1024, now seen corresponding path program 1 times [2022-12-12 21:44:53,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:53,581 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774595269] [2022-12-12 21:44:53,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:53,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:53,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:44:53,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:44:53,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:44:53,750 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774595269] [2022-12-12 21:44:53,750 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774595269] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:44:53,750 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:44:53,750 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-12 21:44:53,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162291113] [2022-12-12 21:44:53,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:44:53,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-12 21:44:53,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:44:53,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-12 21:44:53,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-12 21:44:53,781 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 136 [2022-12-12 21:44:53,782 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) [2022-12-12 21:44:53,782 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:44:53,782 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 136 [2022-12-12 21:44:53,783 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:44:55,918 INFO L130 PetriNetUnfolder]: 29359/41877 cut-off events. [2022-12-12 21:44:55,918 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2022-12-12 21:44:55,954 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. [2022-12-12 21:44:56,017 INFO L137 encePairwiseOnDemand]: 125/136 looper letters, 110 selfloop transitions, 0 changer transitions 2/125 dead transitions. [2022-12-12 21:44:56,018 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 121 places, 125 transitions, 491 flow [2022-12-12 21:44:56,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-12 21:44:56,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-12 21:44:56,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 149 transitions. [2022-12-12 21:44:56,028 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5477941176470589 [2022-12-12 21:44:56,030 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -7 predicate places. [2022-12-12 21:44:56,031 INFO L82 GeneralOperation]: Start removeDead. Operand has 121 places, 125 transitions, 491 flow [2022-12-12 21:44:56,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 123 transitions, 483 flow [2022-12-12 21:44:56,088 INFO L495 AbstractCegarLoop]: Abstraction has has 121 places, 123 transitions, 483 flow [2022-12-12 21:44:56,088 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) [2022-12-12 21:44:56,089 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:44:56,089 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2022-12-12 21:44:56,089 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-12 21:44:56,089 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)] === [2022-12-12 21:44:56,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:44:56,098 INFO L85 PathProgramCache]: Analyzing trace with hash 751330335, now seen corresponding path program 1 times [2022-12-12 21:44:56,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:44:56,098 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054884735] [2022-12-12 21:44:56,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:44:56,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:44:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:44:56,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:44:56,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:44:56,308 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054884735] [2022-12-12 21:44:56,309 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054884735] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:44:56,309 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:44:56,309 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:44:56,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [134944192] [2022-12-12 21:44:56,309 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:44:56,310 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-12-12 21:44:56,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:44:56,310 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-12-12 21:44:56,310 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-12-12 21:44:56,311 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2022-12-12 21:44:56,311 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 123 transitions, 483 flow. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2022-12-12 21:44:56,311 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:44:56,312 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2022-12-12 21:44:56,312 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:00,868 INFO L130 PetriNetUnfolder]: 60996/86727 cut-off events. [2022-12-12 21:45:00,869 INFO L131 PetriNetUnfolder]: For 414/468 co-relation queries the response was YES. [2022-12-12 21:45:00,933 INFO L83 FinitePrefix]: Finished finitePrefix Result has 255369 conditions, 86727 events. 60996/86727 cut-off events. For 414/468 co-relation queries the response was YES. Maximal size of possible extension queue 7310. Compared 669226 event pairs, 28056 based on Foata normal form. 0/11619 useless extension candidates. Maximal degree in co-relation 251420. Up to 83122 conditions per place. [2022-12-12 21:45:01,044 INFO L137 encePairwiseOnDemand]: 114/136 looper letters, 252 selfloop transitions, 29 changer transitions 0/291 dead transitions. [2022-12-12 21:45:01,044 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 291 transitions, 1719 flow [2022-12-12 21:45:01,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-12-12 21:45:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-12-12 21:45:01,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 335 transitions. [2022-12-12 21:45:01,049 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.49264705882352944 [2022-12-12 21:45:01,049 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -3 predicate places. [2022-12-12 21:45:01,049 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 291 transitions, 1719 flow [2022-12-12 21:45:01,166 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 125 places, 291 transitions, 1719 flow [2022-12-12 21:45:01,167 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 291 transitions, 1719 flow [2022-12-12 21:45:01,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 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) [2022-12-12 21:45:01,167 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:01,168 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:01,168 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-12 21:45:01,168 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)] === [2022-12-12 21:45:01,168 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:01,168 INFO L85 PathProgramCache]: Analyzing trace with hash 504083356, now seen corresponding path program 1 times [2022-12-12 21:45:01,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:01,169 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855035826] [2022-12-12 21:45:01,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:01,172 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:01,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:01,255 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:01,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:01,256 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855035826] [2022-12-12 21:45:01,256 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1855035826] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:01,256 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:01,256 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:45:01,256 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283273682] [2022-12-12 21:45:01,256 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:01,257 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:01,257 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:01,257 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:01,257 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:01,258 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 136 [2022-12-12 21:45:01,258 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 291 transitions, 1719 flow. Second operand has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 21:45:01,258 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:01,258 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 136 [2022-12-12 21:45:01,258 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:04,791 INFO L130 PetriNetUnfolder]: 43968/63498 cut-off events. [2022-12-12 21:45:04,791 INFO L131 PetriNetUnfolder]: For 1231/1339 co-relation queries the response was YES. [2022-12-12 21:45:04,845 INFO L83 FinitePrefix]: Finished finitePrefix Result has 246322 conditions, 63498 events. 43968/63498 cut-off events. For 1231/1339 co-relation queries the response was YES. Maximal size of possible extension queue 5015. Compared 481577 event pairs, 10316 based on Foata normal form. 414/9684 useless extension candidates. Maximal degree in co-relation 241119. Up to 60370 conditions per place. [2022-12-12 21:45:04,926 INFO L137 encePairwiseOnDemand]: 110/136 looper letters, 260 selfloop transitions, 8 changer transitions 92/379 dead transitions. [2022-12-12 21:45:04,927 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 126 places, 379 transitions, 2963 flow [2022-12-12 21:45:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:04,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:04,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 211 transitions. [2022-12-12 21:45:04,928 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.5171568627450981 [2022-12-12 21:45:04,929 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -2 predicate places. [2022-12-12 21:45:04,930 INFO L82 GeneralOperation]: Start removeDead. Operand has 126 places, 379 transitions, 2963 flow [2022-12-12 21:45:05,013 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 113 places, 287 transitions, 2227 flow [2022-12-12 21:45:05,014 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 287 transitions, 2227 flow [2022-12-12 21:45:05,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.666666666666666) internal successors, (47), 3 states have internal predecessors, (47), 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) [2022-12-12 21:45:05,015 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:05,015 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:05,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-12 21:45:05,015 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)] === [2022-12-12 21:45:05,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:05,015 INFO L85 PathProgramCache]: Analyzing trace with hash 503897497, now seen corresponding path program 1 times [2022-12-12 21:45:05,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:05,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692132208] [2022-12-12 21:45:05,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:05,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:05,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:05,106 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:05,107 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:05,107 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692132208] [2022-12-12 21:45:05,107 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1692132208] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:05,107 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:05,108 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:45:05,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1557894678] [2022-12-12 21:45:05,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:05,108 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:05,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:05,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:05,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:05,109 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2022-12-12 21:45:05,109 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 287 transitions, 2227 flow. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-12 21:45:05,110 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:05,110 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2022-12-12 21:45:05,110 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:08,473 INFO L130 PetriNetUnfolder]: 32223/49915 cut-off events. [2022-12-12 21:45:08,474 INFO L131 PetriNetUnfolder]: For 1219/1219 co-relation queries the response was YES. [2022-12-12 21:45:08,526 INFO L83 FinitePrefix]: Finished finitePrefix Result has 241056 conditions, 49915 events. 32223/49915 cut-off events. For 1219/1219 co-relation queries the response was YES. Maximal size of possible extension queue 3788. Compared 410231 event pairs, 6624 based on Foata normal form. 288/8790 useless extension candidates. Maximal degree in co-relation 234353. Up to 46968 conditions per place. [2022-12-12 21:45:08,584 INFO L137 encePairwiseOnDemand]: 123/136 looper letters, 214 selfloop transitions, 21 changer transitions 169/414 dead transitions. [2022-12-12 21:45:08,584 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 414 transitions, 4038 flow [2022-12-12 21:45:08,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:08,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:08,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2022-12-12 21:45:08,585 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.4852941176470588 [2022-12-12 21:45:08,586 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -13 predicate places. [2022-12-12 21:45:08,586 INFO L82 GeneralOperation]: Start removeDead. Operand has 115 places, 414 transitions, 4038 flow [2022-12-12 21:45:08,644 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 87 places, 245 transitions, 2352 flow [2022-12-12 21:45:08,644 INFO L495 AbstractCegarLoop]: Abstraction has has 87 places, 245 transitions, 2352 flow [2022-12-12 21:45:08,645 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 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) [2022-12-12 21:45:08,645 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:08,645 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:08,645 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-12 21:45:08,645 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-12 21:45:08,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:08,645 INFO L85 PathProgramCache]: Analyzing trace with hash -922429023, now seen corresponding path program 1 times [2022-12-12 21:45:08,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:08,646 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258314155] [2022-12-12 21:45:08,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:08,646 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:08,693 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:08,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:08,694 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258314155] [2022-12-12 21:45:08,694 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [258314155] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:08,694 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:08,694 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-12 21:45:08,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1802229280] [2022-12-12 21:45:08,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:08,695 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:08,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:08,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:08,695 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 12 out of 136 [2022-12-12 21:45:08,695 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 245 transitions, 2352 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2022-12-12 21:45:08,696 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:08,696 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 12 of 136 [2022-12-12 21:45:08,696 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:09,232 INFO L130 PetriNetUnfolder]: 3513/5892 cut-off events. [2022-12-12 21:45:09,232 INFO L131 PetriNetUnfolder]: For 998/998 co-relation queries the response was YES. [2022-12-12 21:45:09,237 INFO L83 FinitePrefix]: Finished finitePrefix Result has 31575 conditions, 5892 events. 3513/5892 cut-off events. For 998/998 co-relation queries the response was YES. Maximal size of possible extension queue 370. Compared 39174 event pairs, 252 based on Foata normal form. 108/2482 useless extension candidates. Maximal degree in co-relation 31361. Up to 5012 conditions per place. [2022-12-12 21:45:09,243 INFO L137 encePairwiseOnDemand]: 131/136 looper letters, 56 selfloop transitions, 4 changer transitions 204/273 dead transitions. [2022-12-12 21:45:09,243 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 273 transitions, 3167 flow [2022-12-12 21:45:09,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:09,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:09,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 152 transitions. [2022-12-12 21:45:09,244 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.37254901960784315 [2022-12-12 21:45:09,245 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -42 predicate places. [2022-12-12 21:45:09,245 INFO L82 GeneralOperation]: Start removeDead. Operand has 86 places, 273 transitions, 3167 flow [2022-12-12 21:45:09,252 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 69 transitions, 773 flow [2022-12-12 21:45:09,252 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 69 transitions, 773 flow [2022-12-12 21:45:09,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2022-12-12 21:45:09,252 INFO L206 CegarLoopForPetriNet]: Found error trace [2022-12-12 21:45:09,253 INFO L214 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-12 21:45:09,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-12 21:45:09,253 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-12 21:45:09,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-12 21:45:09,253 INFO L85 PathProgramCache]: Analyzing trace with hash 511394434, now seen corresponding path program 1 times [2022-12-12 21:45:09,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-12 21:45:09,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1592029136] [2022-12-12 21:45:09,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-12 21:45:09,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-12 21:45:09,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-12 21:45:09,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-12 21:45:09,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-12 21:45:09,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1592029136] [2022-12-12 21:45:09,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1592029136] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-12 21:45:09,317 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-12 21:45:09,317 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-12-12 21:45:09,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2038906162] [2022-12-12 21:45:09,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-12 21:45:09,318 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-12 21:45:09,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-12 21:45:09,319 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-12 21:45:09,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-12 21:45:09,319 INFO L481 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 136 [2022-12-12 21:45:09,319 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 69 transitions, 773 flow. Second operand has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-12-12 21:45:09,319 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-12 21:45:09,319 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 136 [2022-12-12 21:45:09,319 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-12 21:45:09,355 INFO L130 PetriNetUnfolder]: 113/236 cut-off events. [2022-12-12 21:45:09,355 INFO L131 PetriNetUnfolder]: For 120/140 co-relation queries the response was YES. [2022-12-12 21:45:09,355 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1435 conditions, 236 events. 113/236 cut-off events. For 120/140 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 749 event pairs, 5 based on Foata normal form. 2/182 useless extension candidates. Maximal degree in co-relation 1380. Up to 199 conditions per place. [2022-12-12 21:45:09,355 INFO L137 encePairwiseOnDemand]: 134/136 looper letters, 0 selfloop transitions, 0 changer transitions 67/67 dead transitions. [2022-12-12 21:45:09,356 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 67 transitions, 869 flow [2022-12-12 21:45:09,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-12 21:45:09,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-12 21:45:09,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 54 transitions. [2022-12-12 21:45:09,356 INFO L526 CegarLoopForPetriNet]: DFA transition density 0.1323529411764706 [2022-12-12 21:45:09,357 INFO L295 CegarLoopForPetriNet]: 128 programPoint places, -86 predicate places. [2022-12-12 21:45:09,357 INFO L82 GeneralOperation]: Start removeDead. Operand has 42 places, 67 transitions, 869 flow [2022-12-12 21:45:09,358 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 0 places, 0 transitions, 0 flow [2022-12-12 21:45:09,358 INFO L495 AbstractCegarLoop]: Abstraction has has 0 places, 0 transitions, 0 flow [2022-12-12 21:45:09,358 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 3 states have internal predecessors, (40), 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) [2022-12-12 21:45:09,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-12-12 21:45:09,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2022-12-12 21:45:09,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2022-12-12 21:45:09,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2022-12-12 21:45:09,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-12 21:45:09,360 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-12-12 21:45:09,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2022-12-12 21:45:09,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-12 21:45:09,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2022-12-12 21:45:09,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2022-12-12 21:45:09,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2022-12-12 21:45:09,361 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-12 21:45:09,361 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-12 21:45:09,362 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2022-12-12 21:45:09,365 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-12 21:45:09,365 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-12 21:45:09,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.12 09:45:09 BasicIcfg [2022-12-12 21:45:09,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-12 21:45:09,367 INFO L158 Benchmark]: Toolchain (without parser) took 26081.86ms. Allocated memory was 187.7MB in the beginning and 5.5GB in the end (delta: 5.4GB). Free memory was 161.7MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-12-12 21:45:09,367 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 187.7MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-12 21:45:09,368 INFO L158 Benchmark]: CACSL2BoogieTranslator took 653.26ms. Allocated memory is still 187.7MB. Free memory was 161.1MB in the beginning and 104.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-12 21:45:09,368 INFO L158 Benchmark]: Boogie Procedure Inliner took 68.82ms. Allocated memory is still 187.7MB. Free memory was 104.0MB in the beginning and 100.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 21:45:09,368 INFO L158 Benchmark]: Boogie Preprocessor took 33.72ms. Allocated memory is still 187.7MB. Free memory was 100.8MB in the beginning and 97.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-12 21:45:09,368 INFO L158 Benchmark]: RCFGBuilder took 605.67ms. Allocated memory was 187.7MB in the beginning and 225.4MB in the end (delta: 37.7MB). Free memory was 97.7MB in the beginning and 187.8MB in the end (delta: -90.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. [2022-12-12 21:45:09,369 INFO L158 Benchmark]: TraceAbstraction took 24715.72ms. Allocated memory was 225.4MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 186.8MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-12-12 21:45:09,370 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 187.7MB. Free memory is still 164.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 653.26ms. Allocated memory is still 187.7MB. Free memory was 161.1MB in the beginning and 104.5MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 68.82ms. Allocated memory is still 187.7MB. Free memory was 104.0MB in the beginning and 100.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 33.72ms. Allocated memory is still 187.7MB. Free memory was 100.8MB in the beginning and 97.7MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 605.67ms. Allocated memory was 187.7MB in the beginning and 225.4MB in the end (delta: 37.7MB). Free memory was 97.7MB in the beginning and 187.8MB in the end (delta: -90.2MB). Peak memory consumption was 18.9MB. Max. memory is 8.0GB. * TraceAbstraction took 24715.72ms. Allocated memory was 225.4MB in the beginning and 5.5GB in the end (delta: 5.3GB). Free memory was 186.8MB in the beginning and 4.4GB in the end (delta: -4.2GB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 8.5s, 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: 146, independent: 47, independent conditional: 0, independent unconditional: 47, dependent: 99, dependent conditional: 0, dependent unconditional: 99, 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 - 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: 0.3s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 24.6s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 14.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 8.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 339 SdHoareTripleChecker+Valid, 0.8s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 339 mSDsluCounter, 7 SdHoareTripleChecker+Invalid, 0.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1398 IncrementalHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 6 mSDtfsCounter, 1398 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2352occurred in iteration=4, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 6 MinimizatonAttempts, 5693 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 55 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! [2022-12-12 21:45:09,383 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...