/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-NoLbe.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-8d0d62b [2022-12-05 18:41:49,230 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-05 18:41:49,231 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-05 18:41:49,265 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-05 18:41:49,267 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-05 18:41:49,270 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-05 18:41:49,272 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-05 18:41:49,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-05 18:41:49,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-05 18:41:49,286 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-05 18:41:49,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-05 18:41:49,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-05 18:41:49,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-05 18:41:49,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-05 18:41:49,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-05 18:41:49,295 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-05 18:41:49,296 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-05 18:41:49,297 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-05 18:41:49,299 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-05 18:41:49,304 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-05 18:41:49,306 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-05 18:41:49,307 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-05 18:41:49,307 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-05 18:41:49,308 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-05 18:41:49,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-05 18:41:49,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-05 18:41:49,316 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-05 18:41:49,317 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-05 18:41:49,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-05 18:41:49,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-12-05 18:41:49,338 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-05 18:41:49,339 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-05 18:41:49,340 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-05 18:41:49,340 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-NoLbe.epf [2022-12-05 18:41:49,379 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-05 18:41:49,380 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-05 18:41:49,381 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-05 18:41:49,381 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-05 18:41:49,382 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-05 18:41:49,383 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-05 18:41:49,383 INFO L138 SettingsManager]: * Use SBE=true [2022-12-05 18:41:49,383 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-05 18:41:49,383 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-05 18:41:49,383 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-05 18:41:49,384 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-05 18:41:49,384 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-05 18:41:49,385 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-12-05 18:41:49,385 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-05 18:41:49,385 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-12-05 18:41:49,385 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-05 18:41:49,385 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-12-05 18:41:49,385 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-05 18:41:49,385 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-12-05 18:41:49,386 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-05 18:41:49,386 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-05 18:41:49,386 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-12-05 18:41:49,386 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-05 18:41:49,386 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:41:49,386 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-05 18:41:49,387 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-05 18:41:49,387 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-12-05 18:41:49,387 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-05 18:41:49,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-05 18:41:49,387 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-12-05 18:41:49,387 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-05 18:41:49,387 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-12-05 18:41:49,725 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-05 18:41:49,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-05 18:41:49,753 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-05 18:41:49,754 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-05 18:41:49,755 INFO L275 PluginConnector]: CDTParser initialized [2022-12-05 18:41:49,756 INFO L432 ainManager$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 [2022-12-05 18:41:50,996 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-05 18:41:51,293 INFO L351 CDTParser]: Found 1 translation units. [2022-12-05 18:41:51,293 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2022-12-05 18:41:51,317 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74dc6072a/a9c0be312bd249ff9ac4c21fb9f23552/FLAGf9135e9ca [2022-12-05 18:41:51,337 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74dc6072a/a9c0be312bd249ff9ac4c21fb9f23552 [2022-12-05 18:41:51,339 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-05 18:41:51,341 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-12-05 18:41:51,343 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-05 18:41:51,343 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-05 18:41:51,346 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-05 18:41:51,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:41:51" (1/1) ... [2022-12-05 18:41:51,347 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5557d27f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:51, skipping insertion in model container [2022-12-05 18:41:51,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.12 06:41:51" (1/1) ... [2022-12-05 18:41:51,353 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-05 18:41:51,406 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-05 18:41:51,948 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] [2022-12-05 18:41:52,030 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:41:52,044 INFO L203 MainTranslator]: Completed pre-run [2022-12-05 18:41:52,107 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] [2022-12-05 18:41:52,128 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-05 18:41:52,258 INFO L208 MainTranslator]: Completed translation [2022-12-05 18:41:52,259 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52 WrapperNode [2022-12-05 18:41:52,259 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-05 18:41:52,261 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-05 18:41:52,261 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-05 18:41:52,261 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-05 18:41:52,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,309 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,338 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 201 [2022-12-05 18:41:52,339 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-05 18:41:52,340 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-05 18:41:52,340 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-05 18:41:52,340 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-05 18:41:52,348 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,355 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,356 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,373 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,377 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,381 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,384 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,389 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-05 18:41:52,390 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-05 18:41:52,391 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-05 18:41:52,391 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-05 18:41:52,391 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (1/1) ... [2022-12-05 18:41:52,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-05 18:41:52,412 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-12-05 18:41:52,429 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) [2022-12-05 18:41:52,440 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 [2022-12-05 18:41:52,463 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2022-12-05 18:41:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2022-12-05 18:41:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-05 18:41:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-05 18:41:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2022-12-05 18:41:52,464 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2022-12-05 18:41:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-12-05 18:41:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-05 18:41:52,464 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-12-05 18:41:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-05 18:41:52,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-05 18:41:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-05 18:41:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-05 18:41:52,465 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-05 18:41:52,467 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2022-12-05 18:41:52,789 INFO L236 CfgBuilder]: Building ICFG [2022-12-05 18:41:52,791 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-05 18:41:53,082 INFO L277 CfgBuilder]: Performing block encoding [2022-12-05 18:41:53,100 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-05 18:41:53,100 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2022-12-05 18:41:53,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:41:53 BoogieIcfgContainer [2022-12-05 18:41:53,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-05 18:41:53,104 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-05 18:41:53,104 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-05 18:41:53,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-05 18:41:53,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.12 06:41:51" (1/3) ... [2022-12-05 18:41:53,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:41:53, skipping insertion in model container [2022-12-05 18:41:53,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.12 06:41:52" (2/3) ... [2022-12-05 18:41:53,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b8a448 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.12 06:41:53, skipping insertion in model container [2022-12-05 18:41:53,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.12 06:41:53" (3/3) ... [2022-12-05 18:41:53,113 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2022-12-05 18:41:53,130 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-05 18:41:53,130 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-12-05 18:41:53,130 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-05 18:41:53,264 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-12-05 18:41:53,302 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 266 places, 296 transitions, 622 flow [2022-12-05 18:41:53,434 INFO L130 PetriNetUnfolder]: 33/303 cut-off events. [2022-12-05 18:41:53,434 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-12-05 18:41:53,444 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. [2022-12-05 18:41:53,444 INFO L82 GeneralOperation]: Start removeDead. Operand has 266 places, 296 transitions, 622 flow [2022-12-05 18:41:53,452 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 188 places, 203 transitions, 423 flow [2022-12-05 18:41:53,460 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-05 18:41:53,468 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;@1b939c50, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, Conditionality=CONDITIONAL_DISJUNCTIVE, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-12-05 18:41:53,468 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-12-05 18:41:53,473 INFO L130 PetriNetUnfolder]: 0/34 cut-off events. [2022-12-05 18:41:53,473 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-05 18:41:53,473 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:53,474 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:53,474 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)] === [2022-12-05 18:41:53,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:53,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1625743017, now seen corresponding path program 1 times [2022-12-05 18:41:53,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:53,490 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858316481] [2022-12-05 18:41:53,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:53,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:53,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:53,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:53,961 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:53,961 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858316481] [2022-12-05 18:41:53,962 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1858316481] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:53,962 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:53,962 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:53,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1172699684] [2022-12-05 18:41:53,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:53,971 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:53,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:53,996 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:53,998 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:54,004 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 296 [2022-12-05 18:41:54,009 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 203 transitions, 423 flow. Second operand has 5 states, 5 states have (on average 238.2) internal successors, (1191), 5 states have internal predecessors, (1191), 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) [2022-12-05 18:41:54,009 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:54,009 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 296 [2022-12-05 18:41:54,010 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:54,216 INFO L130 PetriNetUnfolder]: 68/553 cut-off events. [2022-12-05 18:41:54,217 INFO L131 PetriNetUnfolder]: For 21/25 co-relation queries the response was YES. [2022-12-05 18:41:54,224 INFO L83 FinitePrefix]: Finished finitePrefix Result has 662 conditions, 553 events. 68/553 cut-off events. For 21/25 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1860 event pairs, 6 based on Foata normal form. 41/526 useless extension candidates. Maximal degree in co-relation 413. Up to 40 conditions per place. [2022-12-05 18:41:54,228 INFO L137 encePairwiseOnDemand]: 275/296 looper letters, 26 selfloop transitions, 12 changer transitions 0/197 dead transitions. [2022-12-05 18:41:54,228 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 187 places, 197 transitions, 496 flow [2022-12-05 18:41:54,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 18:41:54,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 18:41:54,247 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1716 transitions. [2022-12-05 18:41:54,251 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8281853281853282 [2022-12-05 18:41:54,253 INFO L175 Difference]: Start difference. First operand has 188 places, 203 transitions, 423 flow. Second operand 7 states and 1716 transitions. [2022-12-05 18:41:54,254 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 187 places, 197 transitions, 496 flow [2022-12-05 18:41:54,272 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 185 places, 197 transitions, 492 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:41:54,279 INFO L231 Difference]: Finished difference. Result has 186 places, 190 transitions, 428 flow [2022-12-05 18:41:54,281 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=387, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=187, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=428, PETRI_PLACES=186, PETRI_TRANSITIONS=190} [2022-12-05 18:41:54,287 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, -2 predicate places. [2022-12-05 18:41:54,287 INFO L495 AbstractCegarLoop]: Abstraction has has 186 places, 190 transitions, 428 flow [2022-12-05 18:41:54,288 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 238.2) internal successors, (1191), 5 states have internal predecessors, (1191), 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) [2022-12-05 18:41:54,288 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:54,289 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:54,289 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-05 18:41:54,289 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-05 18:41:54,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:54,291 INFO L85 PathProgramCache]: Analyzing trace with hash 250526153, now seen corresponding path program 1 times [2022-12-05 18:41:54,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:54,291 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1876971407] [2022-12-05 18:41:54,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:54,291 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:54,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:54,475 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:54,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:54,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1876971407] [2022-12-05 18:41:54,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1876971407] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:54,477 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:54,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:54,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069652530] [2022-12-05 18:41:54,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:54,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:54,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:54,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:54,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:54,481 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 296 [2022-12-05 18:41:54,483 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 186 places, 190 transitions, 428 flow. Second operand has 5 states, 5 states have (on average 239.2) internal successors, (1196), 5 states have internal predecessors, (1196), 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) [2022-12-05 18:41:54,483 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:54,483 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 296 [2022-12-05 18:41:54,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:54,635 INFO L130 PetriNetUnfolder]: 70/581 cut-off events. [2022-12-05 18:41:54,636 INFO L131 PetriNetUnfolder]: For 46/53 co-relation queries the response was YES. [2022-12-05 18:41:54,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 736 conditions, 581 events. 70/581 cut-off events. For 46/53 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 2048 event pairs, 10 based on Foata normal form. 1/512 useless extension candidates. Maximal degree in co-relation 416. Up to 58 conditions per place. [2022-12-05 18:41:54,641 INFO L137 encePairwiseOnDemand]: 288/296 looper letters, 25 selfloop transitions, 3 changer transitions 6/190 dead transitions. [2022-12-05 18:41:54,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 189 places, 190 transitions, 494 flow [2022-12-05 18:41:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:41:54,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:41:54,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1452 transitions. [2022-12-05 18:41:54,647 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8175675675675675 [2022-12-05 18:41:54,651 INFO L175 Difference]: Start difference. First operand has 186 places, 190 transitions, 428 flow. Second operand 6 states and 1452 transitions. [2022-12-05 18:41:54,651 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 189 places, 190 transitions, 494 flow [2022-12-05 18:41:54,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 184 places, 190 transitions, 475 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-12-05 18:41:54,660 INFO L231 Difference]: Finished difference. Result has 184 places, 182 transitions, 397 flow [2022-12-05 18:41:54,660 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=405, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=397, PETRI_PLACES=184, PETRI_TRANSITIONS=182} [2022-12-05 18:41:54,661 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, -4 predicate places. [2022-12-05 18:41:54,661 INFO L495 AbstractCegarLoop]: Abstraction has has 184 places, 182 transitions, 397 flow [2022-12-05 18:41:54,662 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 239.2) internal successors, (1196), 5 states have internal predecessors, (1196), 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) [2022-12-05 18:41:54,662 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:54,663 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:54,663 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-05 18:41:54,664 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-05 18:41:54,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:54,665 INFO L85 PathProgramCache]: Analyzing trace with hash -1739166124, now seen corresponding path program 1 times [2022-12-05 18:41:54,665 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:54,665 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899798248] [2022-12-05 18:41:54,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:54,666 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:54,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:54,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:54,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:54,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899798248] [2022-12-05 18:41:54,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899798248] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:54,848 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:54,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:54,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [960887131] [2022-12-05 18:41:54,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:54,849 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:54,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:54,851 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:54,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:54,852 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-12-05 18:41:54,854 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 182 transitions, 397 flow. Second operand has 5 states, 5 states have (on average 242.8) internal successors, (1214), 5 states have internal predecessors, (1214), 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) [2022-12-05 18:41:54,854 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:54,854 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-12-05 18:41:54,854 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:55,127 INFO L130 PetriNetUnfolder]: 114/837 cut-off events. [2022-12-05 18:41:55,127 INFO L131 PetriNetUnfolder]: For 66/78 co-relation queries the response was YES. [2022-12-05 18:41:55,130 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1081 conditions, 837 events. 114/837 cut-off events. For 66/78 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 3576 event pairs, 7 based on Foata normal form. 0/744 useless extension candidates. Maximal degree in co-relation 983. Up to 51 conditions per place. [2022-12-05 18:41:55,139 INFO L137 encePairwiseOnDemand]: 286/296 looper letters, 47 selfloop transitions, 18 changer transitions 0/220 dead transitions. [2022-12-05 18:41:55,139 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 183 places, 220 transitions, 632 flow [2022-12-05 18:41:55,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:41:55,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:41:55,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2233 transitions. [2022-12-05 18:41:55,145 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8382132132132132 [2022-12-05 18:41:55,145 INFO L175 Difference]: Start difference. First operand has 184 places, 182 transitions, 397 flow. Second operand 9 states and 2233 transitions. [2022-12-05 18:41:55,145 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 183 places, 220 transitions, 632 flow [2022-12-05 18:41:55,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 181 places, 220 transitions, 626 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-05 18:41:55,153 INFO L231 Difference]: Finished difference. Result has 188 places, 197 transitions, 530 flow [2022-12-05 18:41:55,153 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=391, PETRI_DIFFERENCE_MINUEND_PLACES=173, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=530, PETRI_PLACES=188, PETRI_TRANSITIONS=197} [2022-12-05 18:41:55,155 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, 0 predicate places. [2022-12-05 18:41:55,155 INFO L495 AbstractCegarLoop]: Abstraction has has 188 places, 197 transitions, 530 flow [2022-12-05 18:41:55,156 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 242.8) internal successors, (1214), 5 states have internal predecessors, (1214), 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) [2022-12-05 18:41:55,156 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:55,156 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:55,157 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-05 18:41:55,157 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)] === [2022-12-05 18:41:55,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:55,158 INFO L85 PathProgramCache]: Analyzing trace with hash -918286529, now seen corresponding path program 1 times [2022-12-05 18:41:55,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:55,158 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678227146] [2022-12-05 18:41:55,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:55,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:55,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:55,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:55,383 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678227146] [2022-12-05 18:41:55,385 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678227146] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:55,385 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:55,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:55,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1200640810] [2022-12-05 18:41:55,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:55,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:55,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:55,390 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:55,390 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:55,392 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 296 [2022-12-05 18:41:55,393 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 188 places, 197 transitions, 530 flow. Second operand has 5 states, 5 states have (on average 247.0) internal successors, (1235), 5 states have internal predecessors, (1235), 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) [2022-12-05 18:41:55,393 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:55,393 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 296 [2022-12-05 18:41:55,393 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:55,767 INFO L130 PetriNetUnfolder]: 264/1696 cut-off events. [2022-12-05 18:41:55,767 INFO L131 PetriNetUnfolder]: For 913/973 co-relation queries the response was YES. [2022-12-05 18:41:55,772 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2746 conditions, 1696 events. 264/1696 cut-off events. For 913/973 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 10836 event pairs, 24 based on Foata normal form. 11/1552 useless extension candidates. Maximal degree in co-relation 1729. Up to 118 conditions per place. [2022-12-05 18:41:55,778 INFO L137 encePairwiseOnDemand]: 286/296 looper letters, 59 selfloop transitions, 37 changer transitions 0/262 dead transitions. [2022-12-05 18:41:55,779 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 196 places, 262 transitions, 1036 flow [2022-12-05 18:41:55,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-12-05 18:41:55,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-12-05 18:41:55,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2281 transitions. [2022-12-05 18:41:55,784 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8562312312312312 [2022-12-05 18:41:55,784 INFO L175 Difference]: Start difference. First operand has 188 places, 197 transitions, 530 flow. Second operand 9 states and 2281 transitions. [2022-12-05 18:41:55,784 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 196 places, 262 transitions, 1036 flow [2022-12-05 18:41:55,792 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 196 places, 262 transitions, 1012 flow, removed 12 selfloop flow, removed 0 redundant places. [2022-12-05 18:41:55,796 INFO L231 Difference]: Finished difference. Result has 202 places, 228 transitions, 858 flow [2022-12-05 18:41:55,796 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=522, PETRI_DIFFERENCE_MINUEND_PLACES=188, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=182, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=858, PETRI_PLACES=202, PETRI_TRANSITIONS=228} [2022-12-05 18:41:55,798 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, 14 predicate places. [2022-12-05 18:41:55,798 INFO L495 AbstractCegarLoop]: Abstraction has has 202 places, 228 transitions, 858 flow [2022-12-05 18:41:55,799 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 247.0) internal successors, (1235), 5 states have internal predecessors, (1235), 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) [2022-12-05 18:41:55,799 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:55,800 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:55,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-05 18:41:55,801 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)] === [2022-12-05 18:41:55,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:55,801 INFO L85 PathProgramCache]: Analyzing trace with hash -633410190, now seen corresponding path program 1 times [2022-12-05 18:41:55,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:55,801 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433810014] [2022-12-05 18:41:55,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:55,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:55,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:55,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:55,987 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433810014] [2022-12-05 18:41:55,987 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433810014] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:55,988 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:55,988 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:55,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329548691] [2022-12-05 18:41:55,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:55,989 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:55,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:55,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:55,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:55,991 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 237 out of 296 [2022-12-05 18:41:55,993 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 228 transitions, 858 flow. Second operand has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2022-12-05 18:41:55,993 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:55,993 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 237 of 296 [2022-12-05 18:41:55,994 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:56,385 INFO L130 PetriNetUnfolder]: 275/1774 cut-off events. [2022-12-05 18:41:56,386 INFO L131 PetriNetUnfolder]: For 2538/2639 co-relation queries the response was YES. [2022-12-05 18:41:56,394 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3601 conditions, 1774 events. 275/1774 cut-off events. For 2538/2639 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 11641 event pairs, 31 based on Foata normal form. 7/1635 useless extension candidates. Maximal degree in co-relation 2621. Up to 211 conditions per place. [2022-12-05 18:41:56,401 INFO L137 encePairwiseOnDemand]: 288/296 looper letters, 59 selfloop transitions, 14 changer transitions 18/260 dead transitions. [2022-12-05 18:41:56,401 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 260 transitions, 1307 flow [2022-12-05 18:41:56,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-12-05 18:41:56,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-12-05 18:41:56,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1940 transitions. [2022-12-05 18:41:56,406 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8192567567567568 [2022-12-05 18:41:56,406 INFO L175 Difference]: Start difference. First operand has 202 places, 228 transitions, 858 flow. Second operand 8 states and 1940 transitions. [2022-12-05 18:41:56,406 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 260 transitions, 1307 flow [2022-12-05 18:41:56,419 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 209 places, 260 transitions, 1263 flow, removed 22 selfloop flow, removed 0 redundant places. [2022-12-05 18:41:56,422 INFO L231 Difference]: Finished difference. Result has 215 places, 232 transitions, 913 flow [2022-12-05 18:41:56,423 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=834, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=215, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=913, PETRI_PLACES=215, PETRI_TRANSITIONS=232} [2022-12-05 18:41:56,425 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, 27 predicate places. [2022-12-05 18:41:56,425 INFO L495 AbstractCegarLoop]: Abstraction has has 215 places, 232 transitions, 913 flow [2022-12-05 18:41:56,426 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 240.0) internal successors, (1200), 5 states have internal predecessors, (1200), 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) [2022-12-05 18:41:56,426 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:56,427 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:56,427 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-12-05 18:41:56,427 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)] === [2022-12-05 18:41:56,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:56,428 INFO L85 PathProgramCache]: Analyzing trace with hash -1914480211, now seen corresponding path program 1 times [2022-12-05 18:41:56,428 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:56,428 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197597194] [2022-12-05 18:41:56,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:56,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:56,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:56,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:56,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:56,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197597194] [2022-12-05 18:41:56,562 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197597194] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:56,562 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:56,562 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:56,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42170301] [2022-12-05 18:41:56,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:56,563 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:56,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:56,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:56,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:56,565 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 256 out of 296 [2022-12-05 18:41:56,567 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 232 transitions, 913 flow. Second operand has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 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) [2022-12-05 18:41:56,567 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:56,567 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 256 of 296 [2022-12-05 18:41:56,567 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:57,049 INFO L130 PetriNetUnfolder]: 292/2830 cut-off events. [2022-12-05 18:41:57,050 INFO L131 PetriNetUnfolder]: For 1976/2103 co-relation queries the response was YES. [2022-12-05 18:41:57,066 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5263 conditions, 2830 events. 292/2830 cut-off events. For 1976/2103 co-relation queries the response was YES. Maximal size of possible extension queue 79. Compared 23752 event pairs, 15 based on Foata normal form. 3/2632 useless extension candidates. Maximal degree in co-relation 5192. Up to 194 conditions per place. [2022-12-05 18:41:57,078 INFO L137 encePairwiseOnDemand]: 289/296 looper letters, 27 selfloop transitions, 9 changer transitions 0/252 dead transitions. [2022-12-05 18:41:57,078 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 252 transitions, 1038 flow [2022-12-05 18:41:57,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 18:41:57,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 18:41:57,081 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1828 transitions. [2022-12-05 18:41:57,082 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8822393822393823 [2022-12-05 18:41:57,082 INFO L175 Difference]: Start difference. First operand has 215 places, 232 transitions, 913 flow. Second operand 7 states and 1828 transitions. [2022-12-05 18:41:57,082 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 252 transitions, 1038 flow [2022-12-05 18:41:57,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 217 places, 252 transitions, 1008 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-12-05 18:41:57,108 INFO L231 Difference]: Finished difference. Result has 223 places, 240 transitions, 951 flow [2022-12-05 18:41:57,109 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=883, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=951, PETRI_PLACES=223, PETRI_TRANSITIONS=240} [2022-12-05 18:41:57,109 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, 35 predicate places. [2022-12-05 18:41:57,109 INFO L495 AbstractCegarLoop]: Abstraction has has 223 places, 240 transitions, 951 flow [2022-12-05 18:41:57,110 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 258.0) internal successors, (1290), 5 states have internal predecessors, (1290), 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) [2022-12-05 18:41:57,110 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:57,111 INFO L213 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:57,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-12-05 18:41:57,111 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-05 18:41:57,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:57,111 INFO L85 PathProgramCache]: Analyzing trace with hash 1375264541, now seen corresponding path program 1 times [2022-12-05 18:41:57,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:57,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80329198] [2022-12-05 18:41:57,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:57,112 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:57,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:57,228 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:57,228 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:57,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80329198] [2022-12-05 18:41:57,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80329198] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:57,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:57,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:57,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616639586] [2022-12-05 18:41:57,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:57,234 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:57,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:57,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:57,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:57,236 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 296 [2022-12-05 18:41:57,238 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 240 transitions, 951 flow. Second operand has 5 states, 5 states have (on average 257.2) internal successors, (1286), 5 states have internal predecessors, (1286), 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) [2022-12-05 18:41:57,238 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:57,238 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 296 [2022-12-05 18:41:57,238 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:57,903 INFO L130 PetriNetUnfolder]: 384/3698 cut-off events. [2022-12-05 18:41:57,903 INFO L131 PetriNetUnfolder]: For 2369/2566 co-relation queries the response was YES. [2022-12-05 18:41:57,926 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6910 conditions, 3698 events. 384/3698 cut-off events. For 2369/2566 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 33002 event pairs, 20 based on Foata normal form. 4/3443 useless extension candidates. Maximal degree in co-relation 6072. Up to 236 conditions per place. [2022-12-05 18:41:57,942 INFO L137 encePairwiseOnDemand]: 288/296 looper letters, 24 selfloop transitions, 8 changer transitions 0/255 dead transitions. [2022-12-05 18:41:57,943 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 229 places, 255 transitions, 1059 flow [2022-12-05 18:41:57,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-12-05 18:41:57,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-12-05 18:41:57,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1817 transitions. [2022-12-05 18:41:57,947 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8769305019305019 [2022-12-05 18:41:57,947 INFO L175 Difference]: Start difference. First operand has 223 places, 240 transitions, 951 flow. Second operand 7 states and 1817 transitions. [2022-12-05 18:41:57,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 229 places, 255 transitions, 1059 flow [2022-12-05 18:41:57,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 255 transitions, 1059 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-05 18:41:57,977 INFO L231 Difference]: Finished difference. Result has 234 places, 247 transitions, 1009 flow [2022-12-05 18:41:57,977 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=951, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=233, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1009, PETRI_PLACES=234, PETRI_TRANSITIONS=247} [2022-12-05 18:41:57,978 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, 46 predicate places. [2022-12-05 18:41:57,978 INFO L495 AbstractCegarLoop]: Abstraction has has 234 places, 247 transitions, 1009 flow [2022-12-05 18:41:57,979 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 257.2) internal successors, (1286), 5 states have internal predecessors, (1286), 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) [2022-12-05 18:41:57,979 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:57,979 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:57,980 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-12-05 18:41:57,980 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-05 18:41:57,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:57,980 INFO L85 PathProgramCache]: Analyzing trace with hash -286155752, now seen corresponding path program 1 times [2022-12-05 18:41:57,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:57,981 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [102713764] [2022-12-05 18:41:57,981 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:57,981 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:58,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:58,076 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-05 18:41:58,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:58,076 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [102713764] [2022-12-05 18:41:58,077 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [102713764] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:58,077 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:58,077 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-12-05 18:41:58,077 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564826494] [2022-12-05 18:41:58,077 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:58,077 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-05 18:41:58,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:58,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-05 18:41:58,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-05 18:41:58,079 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 296 [2022-12-05 18:41:58,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 247 transitions, 1009 flow. Second operand has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2022-12-05 18:41:58,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:58,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 296 [2022-12-05 18:41:58,080 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:58,238 INFO L130 PetriNetUnfolder]: 51/602 cut-off events. [2022-12-05 18:41:58,238 INFO L131 PetriNetUnfolder]: For 167/167 co-relation queries the response was YES. [2022-12-05 18:41:58,240 INFO L83 FinitePrefix]: Finished finitePrefix Result has 958 conditions, 602 events. 51/602 cut-off events. For 167/167 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 1989 event pairs, 0 based on Foata normal form. 0/542 useless extension candidates. Maximal degree in co-relation 912. Up to 46 conditions per place. [2022-12-05 18:41:58,242 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 14 selfloop transitions, 2 changer transitions 39/200 dead transitions. [2022-12-05 18:41:58,242 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 200 transitions, 692 flow [2022-12-05 18:41:58,243 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-05 18:41:58,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-05 18:41:58,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 765 transitions. [2022-12-05 18:41:58,245 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8614864864864865 [2022-12-05 18:41:58,245 INFO L175 Difference]: Start difference. First operand has 234 places, 247 transitions, 1009 flow. Second operand 3 states and 765 transitions. [2022-12-05 18:41:58,245 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 200 transitions, 692 flow [2022-12-05 18:41:58,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 200 transitions, 601 flow, removed 19 selfloop flow, removed 23 redundant places. [2022-12-05 18:41:58,251 INFO L231 Difference]: Finished difference. Result has 204 places, 159 transitions, 448 flow [2022-12-05 18:41:58,251 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=557, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=448, PETRI_PLACES=204, PETRI_TRANSITIONS=159} [2022-12-05 18:41:58,252 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, 16 predicate places. [2022-12-05 18:41:58,252 INFO L495 AbstractCegarLoop]: Abstraction has has 204 places, 159 transitions, 448 flow [2022-12-05 18:41:58,252 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 250.33333333333334) internal successors, (751), 3 states have internal predecessors, (751), 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) [2022-12-05 18:41:58,252 INFO L205 CegarLoopForPetriNet]: Found error trace [2022-12-05 18:41:58,253 INFO L213 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:58,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-12-05 18:41:58,253 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 9 more)] === [2022-12-05 18:41:58,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-05 18:41:58,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1295425156, now seen corresponding path program 1 times [2022-12-05 18:41:58,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-05 18:41:58,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388721329] [2022-12-05 18:41:58,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-05 18:41:58,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-05 18:41:58,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-05 18:41:58,391 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-12-05 18:41:58,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-05 18:41:58,392 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388721329] [2022-12-05 18:41:58,392 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388721329] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-05 18:41:58,392 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-05 18:41:58,392 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-12-05 18:41:58,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067582494] [2022-12-05 18:41:58,392 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-05 18:41:58,393 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-12-05 18:41:58,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-05 18:41:58,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-12-05 18:41:58,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-12-05 18:41:58,395 INFO L490 CegarLoopForPetriNet]: Number of universal loopers: 241 out of 296 [2022-12-05 18:41:58,396 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 159 transitions, 448 flow. Second operand has 5 states, 5 states have (on average 243.2) internal successors, (1216), 5 states have internal predecessors, (1216), 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) [2022-12-05 18:41:58,396 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-05 18:41:58,396 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 241 of 296 [2022-12-05 18:41:58,396 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-05 18:41:58,486 INFO L130 PetriNetUnfolder]: 31/348 cut-off events. [2022-12-05 18:41:58,486 INFO L131 PetriNetUnfolder]: For 52/68 co-relation queries the response was YES. [2022-12-05 18:41:58,488 INFO L83 FinitePrefix]: Finished finitePrefix Result has 518 conditions, 348 events. 31/348 cut-off events. For 52/68 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 567 event pairs, 0 based on Foata normal form. 2/321 useless extension candidates. Maximal degree in co-relation 496. Up to 22 conditions per place. [2022-12-05 18:41:58,489 INFO L137 encePairwiseOnDemand]: 290/296 looper letters, 0 selfloop transitions, 0 changer transitions 167/167 dead transitions. [2022-12-05 18:41:58,489 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 167 transitions, 543 flow [2022-12-05 18:41:58,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-12-05 18:41:58,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-12-05 18:41:58,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1473 transitions. [2022-12-05 18:41:58,493 INFO L535 CegarLoopForPetriNet]: DFA transition density 0.8293918918918919 [2022-12-05 18:41:58,493 INFO L175 Difference]: Start difference. First operand has 204 places, 159 transitions, 448 flow. Second operand 6 states and 1473 transitions. [2022-12-05 18:41:58,493 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 167 transitions, 543 flow [2022-12-05 18:41:58,495 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 167 transitions, 510 flow, removed 3 selfloop flow, removed 13 redundant places. [2022-12-05 18:41:58,496 INFO L231 Difference]: Finished difference. Result has 167 places, 0 transitions, 0 flow [2022-12-05 18:41:58,497 INFO L276 CegarLoopForPetriNet]: {PETRI_ALPHABET=296, PETRI_DIFFERENCE_MINUEND_FLOW=411, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=157, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=0, PETRI_PLACES=167, PETRI_TRANSITIONS=0} [2022-12-05 18:41:58,498 INFO L294 CegarLoopForPetriNet]: 188 programPoint places, -21 predicate places. [2022-12-05 18:41:58,498 INFO L495 AbstractCegarLoop]: Abstraction has has 167 places, 0 transitions, 0 flow [2022-12-05 18:41:58,499 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 243.2) internal successors, (1216), 5 states have internal predecessors, (1216), 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) [2022-12-05 18:41:58,501 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (11 of 12 remaining) [2022-12-05 18:41:58,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (10 of 12 remaining) [2022-12-05 18:41:58,502 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (9 of 12 remaining) [2022-12-05 18:41:58,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (8 of 12 remaining) [2022-12-05 18:41:58,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (7 of 12 remaining) [2022-12-05 18:41:58,503 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (6 of 12 remaining) [2022-12-05 18:41:58,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 12 remaining) [2022-12-05 18:41:58,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (4 of 12 remaining) [2022-12-05 18:41:58,504 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 12 remaining) [2022-12-05 18:41:58,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (2 of 12 remaining) [2022-12-05 18:41:58,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 12 remaining) [2022-12-05 18:41:58,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 12 remaining) [2022-12-05 18:41:58,505 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-12-05 18:41:58,505 INFO L458 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-12-05 18:41:58,511 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-05 18:41:58,511 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-05 18:41:58,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.12 06:41:58 BasicIcfg [2022-12-05 18:41:58,518 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-05 18:41:58,518 INFO L158 Benchmark]: Toolchain (without parser) took 7177.82ms. Allocated memory was 188.7MB in the beginning and 288.4MB in the end (delta: 99.6MB). Free memory was 152.3MB in the beginning and 137.5MB in the end (delta: 14.8MB). Peak memory consumption was 115.4MB. Max. memory is 8.0GB. [2022-12-05 18:41:58,518 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 166.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-12-05 18:41:58,519 INFO L158 Benchmark]: CACSL2BoogieTranslator took 916.87ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 95.6MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. [2022-12-05 18:41:58,519 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.37ms. Allocated memory is still 188.7MB. Free memory was 95.6MB in the beginning and 92.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. [2022-12-05 18:41:58,519 INFO L158 Benchmark]: Boogie Preprocessor took 50.20ms. Allocated memory is still 188.7MB. Free memory was 92.0MB in the beginning and 88.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-12-05 18:41:58,519 INFO L158 Benchmark]: RCFGBuilder took 711.87ms. Allocated memory is still 188.7MB. Free memory was 88.8MB in the beginning and 64.7MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. [2022-12-05 18:41:58,520 INFO L158 Benchmark]: TraceAbstraction took 5413.76ms. Allocated memory was 188.7MB in the beginning and 288.4MB in the end (delta: 99.6MB). Free memory was 64.2MB in the beginning and 137.5MB in the end (delta: -73.3MB). Peak memory consumption was 27.4MB. Max. memory is 8.0GB. [2022-12-05 18:41:58,523 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 188.7MB. Free memory is still 166.2MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 916.87ms. Allocated memory is still 188.7MB. Free memory was 152.3MB in the beginning and 95.6MB in the end (delta: 56.6MB). Peak memory consumption was 56.6MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 78.37ms. Allocated memory is still 188.7MB. Free memory was 95.6MB in the beginning and 92.0MB in the end (delta: 3.7MB). Peak memory consumption was 4.2MB. Max. memory is 8.0GB. * Boogie Preprocessor took 50.20ms. Allocated memory is still 188.7MB. Free memory was 92.0MB in the beginning and 88.8MB in the end (delta: 3.1MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * RCFGBuilder took 711.87ms. Allocated memory is still 188.7MB. Free memory was 88.8MB in the beginning and 64.7MB in the end (delta: 24.1MB). Peak memory consumption was 24.1MB. Max. memory is 8.0GB. * TraceAbstraction took 5413.76ms. Allocated memory was 188.7MB in the beginning and 288.4MB in the end (delta: 99.6MB). Free memory was 64.2MB in the beginning and 137.5MB in the end (delta: -73.3MB). Peak memory consumption was 27.4MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 5.2s, OverallIterations: 9, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 3.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 277 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 277 mSDsluCounter, 358 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 207 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 451 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 151 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1009occurred in iteration=7, InterpolantAutomatonStates: 62, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 660 NumberOfCodeBlocks, 660 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 651 ConstructedInterpolants, 0 QuantifiedInterpolants, 751 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 21/21 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! [2022-12-05 18:41:58,542 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...