/usr/bin/java -Xmx16000000000 -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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:05:05,407 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:05:05,409 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:05:05,429 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:05:05,429 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:05:05,430 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:05:05,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:05:05,432 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:05:05,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:05:05,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:05:05,434 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:05:05,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:05:05,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:05:05,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:05:05,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:05:05,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:05:05,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:05:05,437 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:05:05,438 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:05:05,439 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:05:05,440 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:05:05,441 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:05:05,442 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:05:05,442 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:05:05,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2023-01-28 07:05:05,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2023-01-28 07:05:05,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2023-01-28 07:05:05,445 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2023-01-28 07:05:05,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2023-01-28 07:05:05,446 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2023-01-28 07:05:05,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2023-01-28 07:05:05,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2023-01-28 07:05:05,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2023-01-28 07:05:05,448 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2023-01-28 07:05:05,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2023-01-28 07:05:05,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2023-01-28 07:05:05,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2023-01-28 07:05:05,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2023-01-28 07:05:05,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:05:05,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:05:05,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:05:05,451 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-VariableLbe.epf [2023-01-28 07:05:05,466 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:05:05,466 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:05:05,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:05:05,467 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:05:05,467 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:05:05,467 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:05:05,467 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:05:05,467 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:05:05,467 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:05:05,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:05:05,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:05:05,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:05:05,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:05:05,470 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:05:05,629 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:05:05,644 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:05:05,646 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:05:05,646 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:05:05,646 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:05:05,647 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-01-28 07:05:06,550 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:05:06,809 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:05:06,810 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i [2023-01-28 07:05:06,827 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e533583e/efbe17d4a0a7494a8c64832e1c06ee56/FLAG6f00d84a5 [2023-01-28 07:05:06,839 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6e533583e/efbe17d4a0a7494a8c64832e1c06ee56 [2023-01-28 07:05:06,841 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:05:06,842 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:05:06,845 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:05:06,845 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:05:06,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:05:06,847 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:05:06" (1/1) ... [2023-01-28 07:05:06,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3fac54c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:06, skipping insertion in model container [2023-01-28 07:05:06,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:05:06" (1/1) ... [2023-01-28 07:05:06,853 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:05:06,903 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:05:07,315 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-01-28 07:05:07,363 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:05:07,374 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:05:07,423 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-4_1-thread_local_vars.i[76081,76094] [2023-01-28 07:05:07,444 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:05:07,541 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:05:07,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07 WrapperNode [2023-01-28 07:05:07,542 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:05:07,543 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:05:07,543 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:05:07,543 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:05:07,547 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,566 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,594 INFO L138 Inliner]: procedures = 486, calls = 43, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 205 [2023-01-28 07:05:07,594 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:05:07,595 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:05:07,595 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:05:07,595 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:05:07,600 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,601 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,612 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,615 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,616 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:05:07,624 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:05:07,625 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:05:07,625 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:05:07,625 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (1/1) ... [2023-01-28 07:05:07,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:05:07,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:05:07,651 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-01-28 07:05:07,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-01-28 07:05:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread_usb [2023-01-28 07:05:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_usb [2023-01-28 07:05:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:05:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:05:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure thread_ath9k [2023-01-28 07:05:07,675 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_ath9k [2023-01-28 07:05:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:05:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:05:07,675 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:05:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:05:07,676 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:05:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:05:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:05:07,676 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:05:07,677 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:05:07,917 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:05:07,918 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:05:08,083 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:05:08,089 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:05:08,089 INFO L302 CfgBuilder]: Removed 2 assume(true) statements. [2023-01-28 07:05:08,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:05:08 BoogieIcfgContainer [2023-01-28 07:05:08,091 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:05:08,092 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:05:08,092 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:05:08,094 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:05:08,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:05:06" (1/3) ... [2023-01-28 07:05:08,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43421284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:05:08, skipping insertion in model container [2023-01-28 07:05:08,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:05:07" (2/3) ... [2023-01-28 07:05:08,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@43421284 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:05:08, skipping insertion in model container [2023-01-28 07:05:08,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:05:08" (3/3) ... [2023-01-28 07:05:08,096 INFO L112 eAbstractionObserver]: Analyzing ICFG race-4_1-thread_local_vars.i [2023-01-28 07:05:08,106 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:05:08,107 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-01-28 07:05:08,107 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:05:08,172 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-01-28 07:05:08,205 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 302 transitions, 634 flow [2023-01-28 07:05:08,299 INFO L130 PetriNetUnfolder]: 33/309 cut-off events. [2023-01-28 07:05:08,300 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 07:05:08,307 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 309 events. 33/309 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 730 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 209. Up to 11 conditions per place. [2023-01-28 07:05:08,307 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 302 transitions, 634 flow [2023-01-28 07:05:08,319 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 192 places, 207 transitions, 431 flow [2023-01-28 07:05:08,322 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:05:08,332 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 192 places, 207 transitions, 431 flow [2023-01-28 07:05:08,334 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 192 places, 207 transitions, 431 flow [2023-01-28 07:05:08,334 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 192 places, 207 transitions, 431 flow [2023-01-28 07:05:08,373 INFO L130 PetriNetUnfolder]: 31/296 cut-off events. [2023-01-28 07:05:08,373 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 07:05:08,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 308 conditions, 296 events. 31/296 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 659 event pairs, 0 based on Foata normal form. 0/253 useless extension candidates. Maximal degree in co-relation 209. Up to 11 conditions per place. [2023-01-28 07:05:08,382 INFO L119 LiptonReduction]: Number of co-enabled transitions 8910 [2023-01-28 07:05:12,998 INFO L134 LiptonReduction]: Checked pairs total: 11799 [2023-01-28 07:05:12,999 INFO L136 LiptonReduction]: Total number of compositions: 249 [2023-01-28 07:05:13,008 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:05:13,012 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;@ee95298, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:05:13,012 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-01-28 07:05:13,024 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2023-01-28 07:05:13,024 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:05:13,024 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:13,025 INFO L208 CegarLoopForPetriNet]: trace histogram [1] [2023-01-28 07:05:13,025 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-01-28 07:05:13,028 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:13,029 INFO L85 PathProgramCache]: Analyzing trace with hash 932, now seen corresponding path program 1 times [2023-01-28 07:05:13,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:13,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204051726] [2023-01-28 07:05:13,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:13,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:13,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:13,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:13,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:13,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204051726] [2023-01-28 07:05:13,169 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1204051726] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:13,169 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:13,169 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2023-01-28 07:05:13,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573988812] [2023-01-28 07:05:13,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:13,175 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-01-28 07:05:13,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:13,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-01-28 07:05:13,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-01-28 07:05:13,207 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 551 [2023-01-28 07:05:13,209 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 34 places, 36 transitions, 89 flow. Second operand has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,209 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:13,209 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 551 [2023-01-28 07:05:13,210 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:13,281 INFO L130 PetriNetUnfolder]: 255/399 cut-off events. [2023-01-28 07:05:13,281 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-01-28 07:05:13,282 INFO L83 FinitePrefix]: Finished finitePrefix Result has 813 conditions, 399 events. 255/399 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1400 event pairs, 131 based on Foata normal form. 0/213 useless extension candidates. Maximal degree in co-relation 685. Up to 389 conditions per place. [2023-01-28 07:05:13,283 INFO L137 encePairwiseOnDemand]: 547/551 looper letters, 28 selfloop transitions, 0 changer transitions 0/32 dead transitions. [2023-01-28 07:05:13,284 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 32 transitions, 137 flow [2023-01-28 07:05:13,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-01-28 07:05:13,286 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2023-01-28 07:05:13,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 576 transitions. [2023-01-28 07:05:13,294 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5226860254083484 [2023-01-28 07:05:13,295 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 576 transitions. [2023-01-28 07:05:13,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 576 transitions. [2023-01-28 07:05:13,296 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:13,298 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 576 transitions. [2023-01-28 07:05:13,301 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 288.0) internal successors, (576), 2 states have internal predecessors, (576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,304 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,305 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 551.0) internal successors, (1653), 3 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,306 INFO L175 Difference]: Start difference. First operand has 34 places, 36 transitions, 89 flow. Second operand 2 states and 576 transitions. [2023-01-28 07:05:13,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 32 transitions, 137 flow [2023-01-28 07:05:13,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 32 transitions, 133 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:05:13,309 INFO L231 Difference]: Finished difference. Result has 30 places, 32 transitions, 77 flow [2023-01-28 07:05:13,311 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=32, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=77, PETRI_PLACES=30, PETRI_TRANSITIONS=32} [2023-01-28 07:05:13,313 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, -4 predicate places. [2023-01-28 07:05:13,313 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 32 transitions, 77 flow [2023-01-28 07:05:13,313 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 272.5) internal successors, (545), 2 states have internal predecessors, (545), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,313 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:13,313 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2023-01-28 07:05:13,314 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:05:13,314 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-01-28 07:05:13,314 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:13,314 INFO L85 PathProgramCache]: Analyzing trace with hash 1677484423, now seen corresponding path program 1 times [2023-01-28 07:05:13,314 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:13,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756891564] [2023-01-28 07:05:13,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:13,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:13,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:13,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:13,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1756891564] [2023-01-28 07:05:13,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1756891564] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:13,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:13,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:05:13,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878865766] [2023-01-28 07:05:13,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:13,488 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:05:13,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:13,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:05:13,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:05:13,494 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 551 [2023-01-28 07:05:13,495 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 32 transitions, 77 flow. Second operand has 4 states, 4 states have (on average 254.5) internal successors, (1018), 4 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,495 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:13,495 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 551 [2023-01-28 07:05:13,495 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:13,665 INFO L130 PetriNetUnfolder]: 476/744 cut-off events. [2023-01-28 07:05:13,665 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2023-01-28 07:05:13,666 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1500 conditions, 744 events. 476/744 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2675 event pairs, 113 based on Foata normal form. 0/424 useless extension candidates. Maximal degree in co-relation 1496. Up to 308 conditions per place. [2023-01-28 07:05:13,668 INFO L137 encePairwiseOnDemand]: 542/551 looper letters, 52 selfloop transitions, 11 changer transitions 0/67 dead transitions. [2023-01-28 07:05:13,668 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 67 transitions, 283 flow [2023-01-28 07:05:13,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 07:05:13,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 07:05:13,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1332 transitions. [2023-01-28 07:05:13,671 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48348457350272234 [2023-01-28 07:05:13,671 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1332 transitions. [2023-01-28 07:05:13,671 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1332 transitions. [2023-01-28 07:05:13,672 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:13,672 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1332 transitions. [2023-01-28 07:05:13,674 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 266.4) internal successors, (1332), 5 states have internal predecessors, (1332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,677 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 551.0) internal successors, (3306), 6 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,678 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 551.0) internal successors, (3306), 6 states have internal predecessors, (3306), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,679 INFO L175 Difference]: Start difference. First operand has 30 places, 32 transitions, 77 flow. Second operand 5 states and 1332 transitions. [2023-01-28 07:05:13,679 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 67 transitions, 283 flow [2023-01-28 07:05:13,679 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 67 transitions, 283 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:05:13,680 INFO L231 Difference]: Finished difference. Result has 38 places, 41 transitions, 161 flow [2023-01-28 07:05:13,680 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=77, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=32, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=161, PETRI_PLACES=38, PETRI_TRANSITIONS=41} [2023-01-28 07:05:13,681 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 4 predicate places. [2023-01-28 07:05:13,681 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 41 transitions, 161 flow [2023-01-28 07:05:13,682 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 254.5) internal successors, (1018), 4 states have internal predecessors, (1018), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,682 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:13,682 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:13,682 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:05:13,682 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-01-28 07:05:13,682 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:13,683 INFO L85 PathProgramCache]: Analyzing trace with hash 1458684387, now seen corresponding path program 1 times [2023-01-28 07:05:13,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:13,683 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [296736516] [2023-01-28 07:05:13,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:13,683 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:13,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:13,783 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:13,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:13,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [296736516] [2023-01-28 07:05:13,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [296736516] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:13,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:13,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:13,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [155646957] [2023-01-28 07:05:13,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:13,786 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:13,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:13,786 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:13,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:13,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 551 [2023-01-28 07:05:13,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 41 transitions, 161 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:13,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 551 [2023-01-28 07:05:13,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:13,897 INFO L130 PetriNetUnfolder]: 536/820 cut-off events. [2023-01-28 07:05:13,897 INFO L131 PetriNetUnfolder]: For 301/301 co-relation queries the response was YES. [2023-01-28 07:05:13,898 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2183 conditions, 820 events. 536/820 cut-off events. For 301/301 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2780 event pairs, 129 based on Foata normal form. 36/662 useless extension candidates. Maximal degree in co-relation 2175. Up to 427 conditions per place. [2023-01-28 07:05:13,901 INFO L137 encePairwiseOnDemand]: 543/551 looper letters, 48 selfloop transitions, 11 changer transitions 2/64 dead transitions. [2023-01-28 07:05:13,901 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 64 transitions, 370 flow [2023-01-28 07:05:13,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:13,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:13,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2023-01-28 07:05:13,904 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49364791288566245 [2023-01-28 07:05:13,904 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 816 transitions. [2023-01-28 07:05:13,904 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 816 transitions. [2023-01-28 07:05:13,904 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:13,905 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 816 transitions. [2023-01-28 07:05:13,906 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,908 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,908 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,909 INFO L175 Difference]: Start difference. First operand has 38 places, 41 transitions, 161 flow. Second operand 3 states and 816 transitions. [2023-01-28 07:05:13,909 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 64 transitions, 370 flow [2023-01-28 07:05:13,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 64 transitions, 370 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-28 07:05:13,913 INFO L231 Difference]: Finished difference. Result has 42 places, 48 transitions, 267 flow [2023-01-28 07:05:13,913 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=267, PETRI_PLACES=42, PETRI_TRANSITIONS=48} [2023-01-28 07:05:13,914 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 8 predicate places. [2023-01-28 07:05:13,914 INFO L495 AbstractCegarLoop]: Abstraction has has 42 places, 48 transitions, 267 flow [2023-01-28 07:05:13,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:13,915 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:13,915 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:13,915 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:05:13,915 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-01-28 07:05:13,916 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:13,916 INFO L85 PathProgramCache]: Analyzing trace with hash 1636512177, now seen corresponding path program 1 times [2023-01-28 07:05:13,916 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:13,916 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1985429484] [2023-01-28 07:05:13,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:13,916 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:14,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:14,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:14,002 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1985429484] [2023-01-28 07:05:14,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1985429484] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:14,002 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:14,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:05:14,003 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1058045572] [2023-01-28 07:05:14,003 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:14,003 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:14,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:14,004 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:14,004 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:14,005 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 268 out of 551 [2023-01-28 07:05:14,006 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 48 transitions, 267 flow. Second operand has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,006 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:14,006 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 268 of 551 [2023-01-28 07:05:14,006 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:14,131 INFO L130 PetriNetUnfolder]: 588/888 cut-off events. [2023-01-28 07:05:14,132 INFO L131 PetriNetUnfolder]: For 1217/1217 co-relation queries the response was YES. [2023-01-28 07:05:14,133 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2691 conditions, 888 events. 588/888 cut-off events. For 1217/1217 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 3110 event pairs, 239 based on Foata normal form. 24/712 useless extension candidates. Maximal degree in co-relation 2681. Up to 804 conditions per place. [2023-01-28 07:05:14,136 INFO L137 encePairwiseOnDemand]: 548/551 looper letters, 50 selfloop transitions, 2 changer transitions 0/55 dead transitions. [2023-01-28 07:05:14,136 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 55 transitions, 405 flow [2023-01-28 07:05:14,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:14,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:14,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 839 transitions. [2023-01-28 07:05:14,138 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5075620084694494 [2023-01-28 07:05:14,138 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 839 transitions. [2023-01-28 07:05:14,138 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 839 transitions. [2023-01-28 07:05:14,139 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:14,139 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 839 transitions. [2023-01-28 07:05:14,143 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 279.6666666666667) internal successors, (839), 3 states have internal predecessors, (839), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,147 INFO L175 Difference]: Start difference. First operand has 42 places, 48 transitions, 267 flow. Second operand 3 states and 839 transitions. [2023-01-28 07:05:14,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 55 transitions, 405 flow [2023-01-28 07:05:14,151 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 55 transitions, 378 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:05:14,153 INFO L231 Difference]: Finished difference. Result has 41 places, 49 transitions, 260 flow [2023-01-28 07:05:14,153 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=242, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=260, PETRI_PLACES=41, PETRI_TRANSITIONS=49} [2023-01-28 07:05:14,154 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 7 predicate places. [2023-01-28 07:05:14,154 INFO L495 AbstractCegarLoop]: Abstraction has has 41 places, 49 transitions, 260 flow [2023-01-28 07:05:14,155 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.0) internal successors, (813), 3 states have internal predecessors, (813), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,155 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:14,155 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:14,155 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 07:05:14,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-01-28 07:05:14,155 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:14,156 INFO L85 PathProgramCache]: Analyzing trace with hash 1736057684, now seen corresponding path program 1 times [2023-01-28 07:05:14,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:14,156 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363373460] [2023-01-28 07:05:14,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:14,156 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:14,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:14,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:14,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:14,261 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363373460] [2023-01-28 07:05:14,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363373460] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:14,261 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:14,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:14,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [491900102] [2023-01-28 07:05:14,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:14,261 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:14,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:14,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:14,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:14,262 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 255 out of 551 [2023-01-28 07:05:14,263 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 49 transitions, 260 flow. Second operand has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,263 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:14,263 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 255 of 551 [2023-01-28 07:05:14,263 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:14,366 INFO L130 PetriNetUnfolder]: 578/872 cut-off events. [2023-01-28 07:05:14,366 INFO L131 PetriNetUnfolder]: For 898/898 co-relation queries the response was YES. [2023-01-28 07:05:14,368 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2662 conditions, 872 events. 578/872 cut-off events. For 898/898 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3080 event pairs, 263 based on Foata normal form. 8/682 useless extension candidates. Maximal degree in co-relation 2651. Up to 835 conditions per place. [2023-01-28 07:05:14,371 INFO L137 encePairwiseOnDemand]: 547/551 looper letters, 45 selfloop transitions, 3 changer transitions 1/52 dead transitions. [2023-01-28 07:05:14,371 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 52 transitions, 366 flow [2023-01-28 07:05:14,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:14,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:14,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 799 transitions. [2023-01-28 07:05:14,373 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.48336358136721114 [2023-01-28 07:05:14,373 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 799 transitions. [2023-01-28 07:05:14,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 799 transitions. [2023-01-28 07:05:14,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:14,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 799 transitions. [2023-01-28 07:05:14,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,377 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,378 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,378 INFO L175 Difference]: Start difference. First operand has 41 places, 49 transitions, 260 flow. Second operand 3 states and 799 transitions. [2023-01-28 07:05:14,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 52 transitions, 366 flow [2023-01-28 07:05:14,380 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 52 transitions, 364 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:05:14,380 INFO L231 Difference]: Finished difference. Result has 43 places, 49 transitions, 271 flow [2023-01-28 07:05:14,380 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=250, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=271, PETRI_PLACES=43, PETRI_TRANSITIONS=49} [2023-01-28 07:05:14,381 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 9 predicate places. [2023-01-28 07:05:14,381 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 49 transitions, 271 flow [2023-01-28 07:05:14,381 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 258.3333333333333) internal successors, (775), 3 states have internal predecessors, (775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,382 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:14,382 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:14,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:05:14,382 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION, thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (and 6 more)] === [2023-01-28 07:05:14,382 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:14,382 INFO L85 PathProgramCache]: Analyzing trace with hash -810365268, now seen corresponding path program 1 times [2023-01-28 07:05:14,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:14,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318064417] [2023-01-28 07:05:14,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:14,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:14,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:14,428 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:14,429 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:14,429 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318064417] [2023-01-28 07:05:14,429 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318064417] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:14,429 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:14,429 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:05:14,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585614308] [2023-01-28 07:05:14,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:14,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:14,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:14,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:14,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:14,431 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 551 [2023-01-28 07:05:14,431 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 49 transitions, 271 flow. Second operand has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,431 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:14,431 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 551 [2023-01-28 07:05:14,432 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:14,492 INFO L130 PetriNetUnfolder]: 248/395 cut-off events. [2023-01-28 07:05:14,493 INFO L131 PetriNetUnfolder]: For 568/568 co-relation queries the response was YES. [2023-01-28 07:05:14,493 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1128 conditions, 395 events. 248/395 cut-off events. For 568/568 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 1118 event pairs, 48 based on Foata normal form. 28/331 useless extension candidates. Maximal degree in co-relation 1116. Up to 216 conditions per place. [2023-01-28 07:05:14,494 INFO L137 encePairwiseOnDemand]: 545/551 looper letters, 0 selfloop transitions, 0 changer transitions 44/44 dead transitions. [2023-01-28 07:05:14,494 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 44 transitions, 291 flow [2023-01-28 07:05:14,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:14,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:14,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 797 transitions. [2023-01-28 07:05:14,495 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4821536600120992 [2023-01-28 07:05:14,495 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 797 transitions. [2023-01-28 07:05:14,496 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 797 transitions. [2023-01-28 07:05:14,496 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:14,496 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 797 transitions. [2023-01-28 07:05:14,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,500 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 551.0) internal successors, (2204), 4 states have internal predecessors, (2204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,500 INFO L175 Difference]: Start difference. First operand has 43 places, 49 transitions, 271 flow. Second operand 3 states and 797 transitions. [2023-01-28 07:05:14,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 44 transitions, 291 flow [2023-01-28 07:05:14,501 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 44 transitions, 239 flow, removed 19 selfloop flow, removed 5 redundant places. [2023-01-28 07:05:14,502 INFO L231 Difference]: Finished difference. Result has 37 places, 0 transitions, 0 flow [2023-01-28 07:05:14,502 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=551, PETRI_DIFFERENCE_MINUEND_FLOW=137, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=36, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=37, PETRI_TRANSITIONS=0} [2023-01-28 07:05:14,502 INFO L281 CegarLoopForPetriNet]: 34 programPoint places, 3 predicate places. [2023-01-28 07:05:14,502 INFO L495 AbstractCegarLoop]: Abstraction has has 37 places, 0 transitions, 0 flow [2023-01-28 07:05:14,503 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 257.3333333333333) internal successors, (772), 3 states have internal predecessors, (772), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (8 of 9 remaining) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (7 of 9 remaining) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (6 of 9 remaining) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 9 remaining) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (4 of 9 remaining) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 9 remaining) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (2 of 9 remaining) [2023-01-28 07:05:14,505 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1ASSERT_VIOLATIONERROR_FUNCTION (1 of 9 remaining) [2023-01-28 07:05:14,506 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_ath9kErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 9 remaining) [2023-01-28 07:05:14,506 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 07:05:14,506 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2023-01-28 07:05:14,507 INFO L307 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/2) [2023-01-28 07:05:14,512 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 272 places, 302 transitions, 634 flow [2023-01-28 07:05:14,528 INFO L130 PetriNetUnfolder]: 33/309 cut-off events. [2023-01-28 07:05:14,528 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 07:05:14,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 321 conditions, 309 events. 33/309 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 730 event pairs, 0 based on Foata normal form. 0/263 useless extension candidates. Maximal degree in co-relation 209. Up to 11 conditions per place. [2023-01-28 07:05:14,529 INFO L82 GeneralOperation]: Start removeDead. Operand has 272 places, 302 transitions, 634 flow [2023-01-28 07:05:14,530 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 182 places, 197 transitions, 411 flow [2023-01-28 07:05:14,530 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:05:14,530 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 182 places, 197 transitions, 411 flow [2023-01-28 07:05:14,530 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 182 places, 197 transitions, 411 flow [2023-01-28 07:05:14,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 182 places, 197 transitions, 411 flow [2023-01-28 07:05:14,546 INFO L130 PetriNetUnfolder]: 31/286 cut-off events. [2023-01-28 07:05:14,546 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2023-01-28 07:05:14,546 INFO L83 FinitePrefix]: Finished finitePrefix Result has 298 conditions, 286 events. 31/286 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 630 event pairs, 0 based on Foata normal form. 0/246 useless extension candidates. Maximal degree in co-relation 208. Up to 11 conditions per place. [2023-01-28 07:05:14,550 INFO L119 LiptonReduction]: Number of co-enabled transitions 8880 [2023-01-28 07:05:18,526 INFO L134 LiptonReduction]: Checked pairs total: 11859 [2023-01-28 07:05:18,526 INFO L136 LiptonReduction]: Total number of compositions: 236 [2023-01-28 07:05:18,527 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2023-01-28 07:05:18,528 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;@ee95298, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:05:18,528 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2023-01-28 07:05:18,531 INFO L130 PetriNetUnfolder]: 9/33 cut-off events. [2023-01-28 07:05:18,531 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:05:18,531 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:18,531 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:18,531 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:05:18,531 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:18,531 INFO L85 PathProgramCache]: Analyzing trace with hash 97712462, now seen corresponding path program 1 times [2023-01-28 07:05:18,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:18,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642309854] [2023-01-28 07:05:18,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:18,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:18,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:18,573 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:05:18,573 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:18,573 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642309854] [2023-01-28 07:05:18,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642309854] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:18,574 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:18,574 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:05:18,574 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300445230] [2023-01-28 07:05:18,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:18,574 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:18,574 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:18,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:18,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:18,575 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 254 out of 538 [2023-01-28 07:05:18,576 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 34 transitions, 85 flow. Second operand has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:18,576 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:18,576 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 254 of 538 [2023-01-28 07:05:18,576 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:18,631 INFO L130 PetriNetUnfolder]: 217/347 cut-off events. [2023-01-28 07:05:18,631 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-01-28 07:05:18,631 INFO L83 FinitePrefix]: Finished finitePrefix Result has 709 conditions, 347 events. 217/347 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1214 event pairs, 90 based on Foata normal form. 0/199 useless extension candidates. Maximal degree in co-relation 581. Up to 256 conditions per place. [2023-01-28 07:05:18,632 INFO L137 encePairwiseOnDemand]: 530/538 looper letters, 0 selfloop transitions, 0 changer transitions 39/39 dead transitions. [2023-01-28 07:05:18,632 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 39 transitions, 165 flow [2023-01-28 07:05:18,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:18,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:18,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 804 transitions. [2023-01-28 07:05:18,634 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49814126394052044 [2023-01-28 07:05:18,634 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 804 transitions. [2023-01-28 07:05:18,634 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 804 transitions. [2023-01-28 07:05:18,634 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:18,634 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 804 transitions. [2023-01-28 07:05:18,635 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 268.0) internal successors, (804), 3 states have internal predecessors, (804), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:18,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:18,637 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 538.0) internal successors, (2152), 4 states have internal predecessors, (2152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:18,637 INFO L175 Difference]: Start difference. First operand has 31 places, 34 transitions, 85 flow. Second operand 3 states and 804 transitions. [2023-01-28 07:05:18,637 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 39 transitions, 165 flow [2023-01-28 07:05:18,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 39 transitions, 155 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 07:05:18,638 INFO L231 Difference]: Finished difference. Result has 28 places, 0 transitions, 0 flow [2023-01-28 07:05:18,638 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=538, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=26, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=31, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=0, PETRI_PLACES=28, PETRI_TRANSITIONS=0} [2023-01-28 07:05:18,638 INFO L281 CegarLoopForPetriNet]: 31 programPoint places, -3 predicate places. [2023-01-28 07:05:18,638 INFO L495 AbstractCegarLoop]: Abstraction has has 28 places, 0 transitions, 0 flow [2023-01-28 07:05:18,639 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 256.6666666666667) internal successors, (770), 3 states have internal predecessors, (770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:18,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 3 remaining) [2023-01-28 07:05:18,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbThread1of1ForFork0Err2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2023-01-28 07:05:18,639 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread_usbErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2023-01-28 07:05:18,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 07:05:18,639 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-28 07:05:18,640 INFO L307 ceAbstractionStarter]: Result for error location InUseError was SAFE,SAFE,SAFE (2/2) [2023-01-28 07:05:18,640 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:05:18,640 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:05:18,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:05:18 BasicIcfg [2023-01-28 07:05:18,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:05:18,643 INFO L158 Benchmark]: Toolchain (without parser) took 11801.24ms. Allocated memory was 557.8MB in the beginning and 721.4MB in the end (delta: 163.6MB). Free memory was 505.0MB in the beginning and 459.8MB in the end (delta: 45.2MB). Peak memory consumption was 210.6MB. Max. memory is 16.0GB. [2023-01-28 07:05:18,643 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 354.4MB. Free memory is still 302.4MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:05:18,643 INFO L158 Benchmark]: CACSL2BoogieTranslator took 697.25ms. Allocated memory is still 557.8MB. Free memory was 504.7MB in the beginning and 508.7MB in the end (delta: -4.0MB). Peak memory consumption was 57.9MB. Max. memory is 16.0GB. [2023-01-28 07:05:18,644 INFO L158 Benchmark]: Boogie Procedure Inliner took 51.66ms. Allocated memory is still 557.8MB. Free memory was 508.7MB in the beginning and 505.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 07:05:18,644 INFO L158 Benchmark]: Boogie Preprocessor took 25.31ms. Allocated memory is still 557.8MB. Free memory was 505.6MB in the beginning and 502.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2023-01-28 07:05:18,644 INFO L158 Benchmark]: RCFGBuilder took 466.51ms. Allocated memory is still 557.8MB. Free memory was 502.4MB in the beginning and 477.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-28 07:05:18,644 INFO L158 Benchmark]: TraceAbstraction took 10550.80ms. Allocated memory was 557.8MB in the beginning and 721.4MB in the end (delta: 163.6MB). Free memory was 476.3MB in the beginning and 459.8MB in the end (delta: 16.5MB). Peak memory consumption was 180.0MB. Max. memory is 16.0GB. [2023-01-28 07:05:18,645 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 354.4MB. Free memory is still 302.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 697.25ms. Allocated memory is still 557.8MB. Free memory was 504.7MB in the beginning and 508.7MB in the end (delta: -4.0MB). Peak memory consumption was 57.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 51.66ms. Allocated memory is still 557.8MB. Free memory was 508.7MB in the beginning and 505.6MB in the end (delta: 3.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.31ms. Allocated memory is still 557.8MB. Free memory was 505.6MB in the beginning and 502.4MB in the end (delta: 3.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * RCFGBuilder took 466.51ms. Allocated memory is still 557.8MB. Free memory was 502.4MB in the beginning and 477.3MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 10550.80ms. Allocated memory was 557.8MB in the beginning and 721.4MB in the end (delta: 163.6MB). Free memory was 476.3MB in the beginning and 459.8MB in the end (delta: 16.5MB). Peak memory consumption was 180.0MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.7s, 192 PlacesBefore, 34 PlacesAfterwards, 207 TransitionsBefore, 36 TransitionsAfterwards, 8910 CoEnabledTransitionPairs, 7 FixpointIterations, 56 TrivialSequentialCompositions, 134 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 44 ConcurrentYvCompositions, 13 ChoiceCompositions, 249 TotalNumberOfCompositions, 11799 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9610, independent: 9467, independent conditional: 0, independent unconditional: 9467, dependent: 143, dependent conditional: 0, dependent unconditional: 143, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5344, independent: 5296, independent conditional: 0, independent unconditional: 5296, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9610, independent: 4171, independent conditional: 0, independent unconditional: 4171, dependent: 95, dependent conditional: 0, dependent unconditional: 95, unknown: 5344, unknown conditional: 0, unknown unconditional: 5344] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 105, Positive conditional cache size: 0, Positive unconditional cache size: 105, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.0s, 182 PlacesBefore, 31 PlacesAfterwards, 197 TransitionsBefore, 34 TransitionsAfterwards, 8880 CoEnabledTransitionPairs, 8 FixpointIterations, 43 TrivialSequentialCompositions, 133 ConcurrentSequentialCompositions, 5 TrivialYvCompositions, 43 ConcurrentYvCompositions, 12 ChoiceCompositions, 236 TotalNumberOfCompositions, 11859 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 9679, independent: 9527, independent conditional: 0, independent unconditional: 9527, dependent: 152, dependent conditional: 0, dependent unconditional: 152, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 5345, independent: 5297, independent conditional: 0, independent unconditional: 5297, dependent: 48, dependent conditional: 0, dependent unconditional: 48, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 9679, independent: 4230, independent conditional: 0, independent unconditional: 4230, dependent: 104, dependent conditional: 0, dependent unconditional: 104, unknown: 5345, unknown conditional: 0, unknown unconditional: 5345] , Statistics on independence cache: Total cache size (in pairs): 118, Positive cache size: 107, Positive conditional cache size: 0, Positive unconditional cache size: 107, Negative cache size: 11, Negative conditional cache size: 0, Negative unconditional cache size: 11, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - 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, 297 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: 6.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.8s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 67 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 67 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 13 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 403 IncrementalHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 13 mSolverCounterUnsat, 0 mSDtfsCounter, 403 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=271occurred in iteration=5, InterpolantAutomatonStates: 19, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 41 ConstructedInterpolants, 0 QuantifiedInterpolants, 56 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 1/1 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 5 procedures, 297 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: 4.1s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 9 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 9 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 3 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 60 IncrementalHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3 mSolverCounterUnsat, 0 mSDtfsCounter, 60 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=85occurred in iteration=0, InterpolantAutomatonStates: 3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 9 NumberOfCodeBlocks, 9 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 10 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2023-01-28 07:05:18,668 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...