/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-NoLbe-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 13:31:57,859 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 13:31:57,860 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 13:31:57,906 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 13:31:57,907 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 13:31:57,913 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 13:31:57,914 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 13:31:57,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 13:31:57,916 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 13:31:57,917 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 13:31:57,917 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 13:31:57,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 13:31:57,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 13:31:57,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 13:31:57,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 13:31:57,920 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 13:31:57,921 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 13:31:57,921 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 13:31:57,922 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 13:31:57,923 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 13:31:57,924 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 13:31:57,933 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 13:31:57,934 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 13:31:57,935 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 13:31:57,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 13:31:57,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 13:31:57,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 13:31:57,937 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 13:31:57,938 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 13:31:57,938 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 13:31:57,938 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 13:31:57,939 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 13:31:57,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 13:31:57,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 13:31:57,940 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 13:31:57,941 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 13:31:57,941 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 13:31:57,941 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 13:31:57,942 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 13:31:57,942 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 13:31:57,943 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 13:31:57,948 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-After.epf [2022-01-19 13:31:57,966 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 13:31:57,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 13:31:57,970 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 13:31:57,970 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 13:31:57,971 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 13:31:57,971 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 13:31:57,971 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 13:31:57,971 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 13:31:57,971 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 13:31:57,971 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 13:31:57,972 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 13:31:57,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 13:31:57,973 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 13:31:57,973 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 13:31:57,973 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 13:31:57,973 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 13:31:57,973 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:31:57,973 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 13:31:57,974 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 13:31:57,974 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 13:31:57,975 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 13:31:57,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 13:31:57,975 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 13:31:57,975 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 13:31:57,975 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 13:31:57,975 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 13:31:58,154 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 13:31:58,172 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 13:31:58,174 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 13:31:58,175 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 13:31:58,176 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 13:31:58,176 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2022-01-19 13:31:58,234 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/178c9f2c1/0fcaa8ad686e40aebf22e54d5fe5f9c4/FLAGcb67ac063 [2022-01-19 13:31:58,586 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 13:31:58,587 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c [2022-01-19 13:31:58,594 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/178c9f2c1/0fcaa8ad686e40aebf22e54d5fe5f9c4/FLAGcb67ac063 [2022-01-19 13:31:58,601 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/178c9f2c1/0fcaa8ad686e40aebf22e54d5fe5f9c4 [2022-01-19 13:31:58,603 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 13:31:58,603 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 13:31:58,608 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 13:31:58,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 13:31:58,610 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 13:31:58,610 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5c4c7f70 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58, skipping insertion in model container [2022-01-19 13:31:58,611 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,615 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 13:31:58,639 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 13:31:58,774 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2022-01-19 13:31:58,777 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:31:58,781 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 13:31:58,799 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-barrier.wvr.c[4722,4735] [2022-01-19 13:31:58,800 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:31:58,808 INFO L208 MainTranslator]: Completed translation [2022-01-19 13:31:58,808 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58 WrapperNode [2022-01-19 13:31:58,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 13:31:58,809 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 13:31:58,809 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 13:31:58,809 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 13:31:58,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,819 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,836 INFO L137 Inliner]: procedures = 25, calls = 98, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 253 [2022-01-19 13:31:58,837 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 13:31:58,837 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 13:31:58,837 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 13:31:58,837 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 13:31:58,842 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,845 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,845 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,850 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,853 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 13:31:58,854 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 13:31:58,854 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 13:31:58,854 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 13:31:58,854 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (1/1) ... [2022-01-19 13:31:58,858 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:31:58,867 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:31:58,888 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 13:31:58,910 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 13:31:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 13:31:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 13:31:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 13:31:58,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 13:31:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 13:31:58,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 13:31:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 13:31:58,917 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 13:31:58,917 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 13:31:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 13:31:58,918 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-19 13:31:58,918 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-19 13:31:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 13:31:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-19 13:31:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-19 13:31:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure thread6 [2022-01-19 13:31:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure thread6 [2022-01-19 13:31:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 13:31:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 13:31:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 13:31:58,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 13:31:58,919 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 13:31:58,920 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 13:31:59,007 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 13:31:59,008 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 13:31:59,255 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 13:31:59,301 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 13:31:59,302 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 13:31:59,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:31:59 BoogieIcfgContainer [2022-01-19 13:31:59,303 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 13:31:59,304 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 13:31:59,304 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 13:31:59,308 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 13:31:59,308 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 01:31:58" (1/3) ... [2022-01-19 13:31:59,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fdb05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:31:59, skipping insertion in model container [2022-01-19 13:31:59,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:31:58" (2/3) ... [2022-01-19 13:31:59,309 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36fdb05e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:31:59, skipping insertion in model container [2022-01-19 13:31:59,309 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:31:59" (3/3) ... [2022-01-19 13:31:59,310 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-barrier.wvr.c [2022-01-19 13:31:59,313 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 13:31:59,313 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 13:31:59,313 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 13:31:59,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,379 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,380 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,382 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,382 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,383 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,384 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,386 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,386 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,386 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,387 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,388 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,389 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,390 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,391 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,392 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,393 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,394 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,395 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,395 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,395 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,395 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,396 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,397 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,398 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,399 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,401 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,402 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,403 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,404 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,404 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,407 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,411 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,411 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,411 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,412 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,413 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,414 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,414 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,414 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,415 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,415 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,418 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,418 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,418 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,418 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,419 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,420 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,421 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,422 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,423 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,424 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,425 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,425 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,425 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,425 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,425 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,425 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,425 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,426 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,426 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,426 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,426 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,426 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,426 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,426 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,427 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,427 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,433 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,434 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,434 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,434 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,434 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,435 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t3~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_~#t2~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~pre1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,437 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,438 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,439 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,441 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t6~0#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_~#t5~0#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,442 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~nondet10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,443 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~pre9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,443 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,443 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork4_#t~mem11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,444 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,444 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,444 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,444 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,444 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,445 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,445 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,446 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,446 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,450 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,451 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,451 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,451 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,451 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork5_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,452 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,452 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,452 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,452 WARN L322 ript$VariableManager]: TermVariabe |thread6Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:31:59,477 INFO L148 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2022-01-19 13:31:59,522 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 13:31:59,530 INFO L339 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, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 13:31:59,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2022-01-19 13:31:59,542 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 246 places, 235 transitions, 542 flow [2022-01-19 13:31:59,636 INFO L129 PetriNetUnfolder]: 8/207 cut-off events. [2022-01-19 13:31:59,636 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 13:31:59,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 236 conditions, 207 events. 8/207 cut-off events. For 6/6 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 243 event pairs, 0 based on Foata normal form. 0/198 useless extension candidates. Maximal degree in co-relation 177. Up to 3 conditions per place. [2022-01-19 13:31:59,641 INFO L82 GeneralOperation]: Start removeDead. Operand has 246 places, 235 transitions, 542 flow [2022-01-19 13:31:59,651 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 198 transitions, 444 flow [2022-01-19 13:31:59,680 INFO L129 PetriNetUnfolder]: 8/197 cut-off events. [2022-01-19 13:31:59,680 INFO L130 PetriNetUnfolder]: For 6/6 co-relation queries the response was YES. [2022-01-19 13:31:59,680 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:31:59,681 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:31:59,681 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:31:59,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:31:59,685 INFO L85 PathProgramCache]: Analyzing trace with hash 7379460, now seen corresponding path program 1 times [2022-01-19 13:31:59,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:31:59,691 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564193682] [2022-01-19 13:31:59,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:31:59,692 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:31:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:00,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:00,135 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:00,135 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564193682] [2022-01-19 13:32:00,135 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564193682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:00,135 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:00,136 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:32:00,136 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99556647] [2022-01-19 13:32:00,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:00,142 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:32:00,143 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:00,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:32:00,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:32:00,162 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-01-19 13:32:00,165 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 198 transitions, 444 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:00,166 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:00,166 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-01-19 13:32:00,166 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:00,523 INFO L129 PetriNetUnfolder]: 354/1315 cut-off events. [2022-01-19 13:32:00,523 INFO L130 PetriNetUnfolder]: For 424/424 co-relation queries the response was YES. [2022-01-19 13:32:00,531 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2287 conditions, 1315 events. 354/1315 cut-off events. For 424/424 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 7887 event pairs, 170 based on Foata normal form. 41/1228 useless extension candidates. Maximal degree in co-relation 2051. Up to 365 conditions per place. [2022-01-19 13:32:00,539 INFO L132 encePairwiseOnDemand]: 228/239 looper letters, 49 selfloop transitions, 6 changer transitions 3/222 dead transitions. [2022-01-19 13:32:00,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 213 places, 222 transitions, 670 flow [2022-01-19 13:32:00,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 13:32:00,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 13:32:00,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1054 transitions. [2022-01-19 13:32:00,556 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8820083682008368 [2022-01-19 13:32:00,557 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1054 transitions. [2022-01-19 13:32:00,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1054 transitions. [2022-01-19 13:32:00,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:00,561 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1054 transitions. [2022-01-19 13:32:00,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 210.8) internal successors, (1054), 5 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:00,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:00,574 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:00,575 INFO L186 Difference]: Start difference. First operand has 209 places, 198 transitions, 444 flow. Second operand 5 states and 1054 transitions. [2022-01-19 13:32:00,576 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 213 places, 222 transitions, 670 flow [2022-01-19 13:32:00,583 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 201 places, 222 transitions, 594 flow, removed 0 selfloop flow, removed 12 redundant places. [2022-01-19 13:32:00,587 INFO L242 Difference]: Finished difference. Result has 202 places, 191 transitions, 416 flow [2022-01-19 13:32:00,588 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=416, PETRI_PLACES=202, PETRI_TRANSITIONS=191} [2022-01-19 13:32:00,592 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, -7 predicate places. [2022-01-19 13:32:00,592 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 191 transitions, 416 flow [2022-01-19 13:32:00,593 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:00,593 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:00,593 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:00,593 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 13:32:00,594 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:00,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:00,594 INFO L85 PathProgramCache]: Analyzing trace with hash 1171318792, now seen corresponding path program 2 times [2022-01-19 13:32:00,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:00,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614703923] [2022-01-19 13:32:00,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:00,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:00,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:00,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:00,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:00,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614703923] [2022-01-19 13:32:00,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614703923] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:00,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:00,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:32:00,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932883956] [2022-01-19 13:32:00,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:00,821 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:32:00,821 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:00,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:32:00,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:32:00,823 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-01-19 13:32:00,824 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 191 transitions, 416 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:00,824 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:00,824 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-01-19 13:32:00,824 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:01,019 INFO L129 PetriNetUnfolder]: 300/1198 cut-off events. [2022-01-19 13:32:01,019 INFO L130 PetriNetUnfolder]: For 141/141 co-relation queries the response was YES. [2022-01-19 13:32:01,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1829 conditions, 1198 events. 300/1198 cut-off events. For 141/141 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 6898 event pairs, 128 based on Foata normal form. 22/1098 useless extension candidates. Maximal degree in co-relation 1402. Up to 289 conditions per place. [2022-01-19 13:32:01,027 INFO L132 encePairwiseOnDemand]: 232/239 looper letters, 48 selfloop transitions, 6 changer transitions 1/218 dead transitions. [2022-01-19 13:32:01,027 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 218 transitions, 607 flow [2022-01-19 13:32:01,027 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 13:32:01,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 13:32:01,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-01-19 13:32:01,029 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-01-19 13:32:01,029 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-01-19 13:32:01,029 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-01-19 13:32:01,029 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:01,029 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-01-19 13:32:01,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,032 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,033 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,033 INFO L186 Difference]: Start difference. First operand has 202 places, 191 transitions, 416 flow. Second operand 5 states and 1046 transitions. [2022-01-19 13:32:01,033 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 218 transitions, 607 flow [2022-01-19 13:32:01,035 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 218 transitions, 595 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 13:32:01,039 INFO L242 Difference]: Finished difference. Result has 200 places, 190 transitions, 420 flow [2022-01-19 13:32:01,039 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=404, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=191, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=420, PETRI_PLACES=200, PETRI_TRANSITIONS=190} [2022-01-19 13:32:01,040 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, -9 predicate places. [2022-01-19 13:32:01,040 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 190 transitions, 420 flow [2022-01-19 13:32:01,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:01,041 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:01,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 13:32:01,041 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:01,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:01,042 INFO L85 PathProgramCache]: Analyzing trace with hash 104742018, now seen corresponding path program 1 times [2022-01-19 13:32:01,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:01,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321331470] [2022-01-19 13:32:01,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:01,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:01,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:01,167 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:01,168 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:01,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321331470] [2022-01-19 13:32:01,168 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321331470] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:01,168 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:01,169 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:32:01,169 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2034207521] [2022-01-19 13:32:01,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:01,170 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:32:01,170 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:01,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:32:01,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:32:01,171 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-01-19 13:32:01,172 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 190 transitions, 420 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,172 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:01,172 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-01-19 13:32:01,172 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:01,350 INFO L129 PetriNetUnfolder]: 311/1167 cut-off events. [2022-01-19 13:32:01,350 INFO L130 PetriNetUnfolder]: For 174/174 co-relation queries the response was YES. [2022-01-19 13:32:01,354 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1900 conditions, 1167 events. 311/1167 cut-off events. For 174/174 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 6706 event pairs, 141 based on Foata normal form. 11/1085 useless extension candidates. Maximal degree in co-relation 1581. Up to 327 conditions per place. [2022-01-19 13:32:01,358 INFO L132 encePairwiseOnDemand]: 232/239 looper letters, 49 selfloop transitions, 6 changer transitions 0/218 dead transitions. [2022-01-19 13:32:01,358 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 218 transitions, 614 flow [2022-01-19 13:32:01,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 13:32:01,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 13:32:01,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1046 transitions. [2022-01-19 13:32:01,360 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8753138075313808 [2022-01-19 13:32:01,360 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1046 transitions. [2022-01-19 13:32:01,360 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1046 transitions. [2022-01-19 13:32:01,361 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:01,361 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1046 transitions. [2022-01-19 13:32:01,362 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.2) internal successors, (1046), 5 states have internal predecessors, (1046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,364 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,364 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,364 INFO L186 Difference]: Start difference. First operand has 200 places, 190 transitions, 420 flow. Second operand 5 states and 1046 transitions. [2022-01-19 13:32:01,364 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 218 transitions, 614 flow [2022-01-19 13:32:01,367 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 218 transitions, 602 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 13:32:01,370 INFO L242 Difference]: Finished difference. Result has 200 places, 190 transitions, 426 flow [2022-01-19 13:32:01,370 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=184, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=426, PETRI_PLACES=200, PETRI_TRANSITIONS=190} [2022-01-19 13:32:01,372 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, -9 predicate places. [2022-01-19 13:32:01,372 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 190 transitions, 426 flow [2022-01-19 13:32:01,373 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:01,373 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:01,373 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:01,373 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 13:32:01,373 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:01,375 INFO L85 PathProgramCache]: Analyzing trace with hash 632833614, now seen corresponding path program 2 times [2022-01-19 13:32:01,375 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:01,376 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202060697] [2022-01-19 13:32:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:01,376 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:01,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:02,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:02,258 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:02,259 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202060697] [2022-01-19 13:32:02,259 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202060697] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:02,259 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:02,259 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-19 13:32:02,259 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856848331] [2022-01-19 13:32:02,259 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:02,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-19 13:32:02,260 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:02,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-19 13:32:02,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=681, Unknown=0, NotChecked=0, Total=756 [2022-01-19 13:32:02,264 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-01-19 13:32:02,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 190 transitions, 426 flow. Second operand has 28 states, 28 states have (on average 157.25) internal successors, (4403), 28 states have internal predecessors, (4403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:02,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:02,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-01-19 13:32:02,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:06,865 INFO L129 PetriNetUnfolder]: 6159/11781 cut-off events. [2022-01-19 13:32:06,866 INFO L130 PetriNetUnfolder]: For 2302/2302 co-relation queries the response was YES. [2022-01-19 13:32:06,892 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22609 conditions, 11781 events. 6159/11781 cut-off events. For 2302/2302 co-relation queries the response was YES. Maximal size of possible extension queue 317. Compared 87885 event pairs, 709 based on Foata normal form. 2/10967 useless extension candidates. Maximal degree in co-relation 21713. Up to 4268 conditions per place. [2022-01-19 13:32:06,945 INFO L132 encePairwiseOnDemand]: 210/239 looper letters, 325 selfloop transitions, 150 changer transitions 31/629 dead transitions. [2022-01-19 13:32:06,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 629 transitions, 2595 flow [2022-01-19 13:32:06,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-19 13:32:06,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-01-19 13:32:06,954 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 8258 transitions. [2022-01-19 13:32:06,957 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6910460251046026 [2022-01-19 13:32:06,957 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 8258 transitions. [2022-01-19 13:32:06,957 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 8258 transitions. [2022-01-19 13:32:06,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:06,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 8258 transitions. [2022-01-19 13:32:06,970 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 165.16) internal successors, (8258), 50 states have internal predecessors, (8258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:06,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 239.0) internal successors, (12189), 51 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:06,989 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 239.0) internal successors, (12189), 51 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:06,989 INFO L186 Difference]: Start difference. First operand has 200 places, 190 transitions, 426 flow. Second operand 50 states and 8258 transitions. [2022-01-19 13:32:06,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 629 transitions, 2595 flow [2022-01-19 13:32:06,996 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 245 places, 629 transitions, 2515 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 13:32:07,003 INFO L242 Difference]: Finished difference. Result has 277 places, 349 transitions, 1298 flow [2022-01-19 13:32:07,004 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=414, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=164, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=1298, PETRI_PLACES=277, PETRI_TRANSITIONS=349} [2022-01-19 13:32:07,005 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 68 predicate places. [2022-01-19 13:32:07,005 INFO L470 AbstractCegarLoop]: Abstraction has has 277 places, 349 transitions, 1298 flow [2022-01-19 13:32:07,006 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 157.25) internal successors, (4403), 28 states have internal predecessors, (4403), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:07,006 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:07,006 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:07,006 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 13:32:07,007 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:07,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:07,007 INFO L85 PathProgramCache]: Analyzing trace with hash 1912792082, now seen corresponding path program 3 times [2022-01-19 13:32:07,007 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:07,008 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222699735] [2022-01-19 13:32:07,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:07,008 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:07,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:07,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:07,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222699735] [2022-01-19 13:32:07,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [222699735] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:07,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:07,115 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:32:07,115 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548449229] [2022-01-19 13:32:07,115 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:07,115 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:32:07,115 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:07,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:32:07,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:32:07,116 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 239 [2022-01-19 13:32:07,117 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 277 places, 349 transitions, 1298 flow. Second operand has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:07,117 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:07,117 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 239 [2022-01-19 13:32:07,117 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:07,695 INFO L129 PetriNetUnfolder]: 1446/4090 cut-off events. [2022-01-19 13:32:07,695 INFO L130 PetriNetUnfolder]: For 1652/1663 co-relation queries the response was YES. [2022-01-19 13:32:07,725 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7876 conditions, 4090 events. 1446/4090 cut-off events. For 1652/1663 co-relation queries the response was YES. Maximal size of possible extension queue 165. Compared 31787 event pairs, 571 based on Foata normal form. 47/3664 useless extension candidates. Maximal degree in co-relation 7833. Up to 1034 conditions per place. [2022-01-19 13:32:07,741 INFO L132 encePairwiseOnDemand]: 232/239 looper letters, 48 selfloop transitions, 9 changer transitions 0/371 dead transitions. [2022-01-19 13:32:07,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 371 transitions, 1478 flow [2022-01-19 13:32:07,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 13:32:07,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 13:32:07,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1045 transitions. [2022-01-19 13:32:07,744 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8744769874476988 [2022-01-19 13:32:07,744 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1045 transitions. [2022-01-19 13:32:07,744 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1045 transitions. [2022-01-19 13:32:07,744 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:07,745 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1045 transitions. [2022-01-19 13:32:07,746 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 209.0) internal successors, (1045), 5 states have internal predecessors, (1045), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:07,747 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:07,748 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 239.0) internal successors, (1434), 6 states have internal predecessors, (1434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:07,748 INFO L186 Difference]: Start difference. First operand has 277 places, 349 transitions, 1298 flow. Second operand 5 states and 1045 transitions. [2022-01-19 13:32:07,748 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 371 transitions, 1478 flow [2022-01-19 13:32:07,758 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 371 transitions, 1466 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 13:32:07,779 INFO L242 Difference]: Finished difference. Result has 272 places, 344 transitions, 1290 flow [2022-01-19 13:32:07,780 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=1265, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=335, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1290, PETRI_PLACES=272, PETRI_TRANSITIONS=344} [2022-01-19 13:32:07,781 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 63 predicate places. [2022-01-19 13:32:07,781 INFO L470 AbstractCegarLoop]: Abstraction has has 272 places, 344 transitions, 1290 flow [2022-01-19 13:32:07,782 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 202.6) internal successors, (1013), 5 states have internal predecessors, (1013), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:07,782 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:07,782 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:07,782 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 13:32:07,782 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:07,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:07,783 INFO L85 PathProgramCache]: Analyzing trace with hash 721203484, now seen corresponding path program 4 times [2022-01-19 13:32:07,783 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:07,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073570687] [2022-01-19 13:32:07,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:07,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:07,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:08,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:08,275 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:08,275 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073570687] [2022-01-19 13:32:08,276 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073570687] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:08,276 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:08,276 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2022-01-19 13:32:08,276 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327453804] [2022-01-19 13:32:08,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:08,276 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-19 13:32:08,276 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:08,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-19 13:32:08,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=414, Unknown=0, NotChecked=0, Total=462 [2022-01-19 13:32:08,279 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:32:08,281 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 272 places, 344 transitions, 1290 flow. Second operand has 22 states, 22 states have (on average 165.5909090909091) internal successors, (3643), 22 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:08,281 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:08,281 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:32:08,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:11,416 INFO L129 PetriNetUnfolder]: 5831/11314 cut-off events. [2022-01-19 13:32:11,416 INFO L130 PetriNetUnfolder]: For 11901/11905 co-relation queries the response was YES. [2022-01-19 13:32:11,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30228 conditions, 11314 events. 5831/11314 cut-off events. For 11901/11905 co-relation queries the response was YES. Maximal size of possible extension queue 336. Compared 83961 event pairs, 1439 based on Foata normal form. 1/10510 useless extension candidates. Maximal degree in co-relation 29680. Up to 5617 conditions per place. [2022-01-19 13:32:11,565 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 350 selfloop transitions, 111 changer transitions 17/613 dead transitions. [2022-01-19 13:32:11,565 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 304 places, 613 transitions, 3464 flow [2022-01-19 13:32:11,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-01-19 13:32:11,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2022-01-19 13:32:11,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 5696 transitions. [2022-01-19 13:32:11,573 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7222010904019273 [2022-01-19 13:32:11,573 INFO L72 ComplementDD]: Start complementDD. Operand 33 states and 5696 transitions. [2022-01-19 13:32:11,573 INFO L73 IsDeterministic]: Start isDeterministic. Operand 33 states and 5696 transitions. [2022-01-19 13:32:11,575 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:11,575 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 33 states and 5696 transitions. [2022-01-19 13:32:11,592 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 34 states, 33 states have (on average 172.6060606060606) internal successors, (5696), 33 states have internal predecessors, (5696), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:11,601 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 34 states, 34 states have (on average 239.0) internal successors, (8126), 34 states have internal predecessors, (8126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:11,602 INFO L81 ComplementDD]: Finished complementDD. Result has 34 states, 34 states have (on average 239.0) internal successors, (8126), 34 states have internal predecessors, (8126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:11,602 INFO L186 Difference]: Start difference. First operand has 272 places, 344 transitions, 1290 flow. Second operand 33 states and 5696 transitions. [2022-01-19 13:32:11,602 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 304 places, 613 transitions, 3464 flow [2022-01-19 13:32:11,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 300 places, 613 transitions, 3444 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 13:32:11,639 INFO L242 Difference]: Finished difference. Result has 321 places, 448 transitions, 2205 flow [2022-01-19 13:32:11,639 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=1272, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=311, PETRI_DIFFERENCE_SUBTRAHEND_STATES=33, PETRI_FLOW=2205, PETRI_PLACES=321, PETRI_TRANSITIONS=448} [2022-01-19 13:32:11,641 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 112 predicate places. [2022-01-19 13:32:11,641 INFO L470 AbstractCegarLoop]: Abstraction has has 321 places, 448 transitions, 2205 flow [2022-01-19 13:32:11,642 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 165.5909090909091) internal successors, (3643), 22 states have internal predecessors, (3643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:11,642 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:11,642 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:11,642 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 13:32:11,642 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:11,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:11,643 INFO L85 PathProgramCache]: Analyzing trace with hash 295802982, now seen corresponding path program 5 times [2022-01-19 13:32:11,643 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:11,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [12321738] [2022-01-19 13:32:11,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:11,643 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:11,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:12,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:12,205 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:12,205 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [12321738] [2022-01-19 13:32:12,205 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [12321738] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:12,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:12,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:32:12,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201641920] [2022-01-19 13:32:12,206 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:12,209 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:32:12,209 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:12,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:32:12,210 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=502, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:32:12,213 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:32:12,215 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 448 transitions, 2205 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:12,215 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:12,215 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:32:12,215 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:16,963 INFO L129 PetriNetUnfolder]: 7413/14328 cut-off events. [2022-01-19 13:32:16,963 INFO L130 PetriNetUnfolder]: For 41322/41329 co-relation queries the response was YES. [2022-01-19 13:32:17,046 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47072 conditions, 14328 events. 7413/14328 cut-off events. For 41322/41329 co-relation queries the response was YES. Maximal size of possible extension queue 442. Compared 110760 event pairs, 2057 based on Foata normal form. 4/13199 useless extension candidates. Maximal degree in co-relation 47000. Up to 7084 conditions per place. [2022-01-19 13:32:17,109 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 551 selfloop transitions, 239 changer transitions 22/947 dead transitions. [2022-01-19 13:32:17,109 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 380 places, 947 transitions, 6716 flow [2022-01-19 13:32:17,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-19 13:32:17,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2022-01-19 13:32:17,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 10801 transitions. [2022-01-19 13:32:17,118 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7173407717340772 [2022-01-19 13:32:17,118 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 10801 transitions. [2022-01-19 13:32:17,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 10801 transitions. [2022-01-19 13:32:17,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:17,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 10801 transitions. [2022-01-19 13:32:17,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 171.44444444444446) internal successors, (10801), 63 states have internal predecessors, (10801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:17,145 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 239.0) internal successors, (15296), 64 states have internal predecessors, (15296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:17,148 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 239.0) internal successors, (15296), 64 states have internal predecessors, (15296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:17,148 INFO L186 Difference]: Start difference. First operand has 321 places, 448 transitions, 2205 flow. Second operand 63 states and 10801 transitions. [2022-01-19 13:32:17,148 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 380 places, 947 transitions, 6716 flow [2022-01-19 13:32:17,298 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 947 transitions, 6528 flow, removed 90 selfloop flow, removed 5 redundant places. [2022-01-19 13:32:17,305 INFO L242 Difference]: Finished difference. Result has 405 places, 638 transitions, 4305 flow [2022-01-19 13:32:17,306 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=2063, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=448, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=4305, PETRI_PLACES=405, PETRI_TRANSITIONS=638} [2022-01-19 13:32:17,306 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 196 predicate places. [2022-01-19 13:32:17,306 INFO L470 AbstractCegarLoop]: Abstraction has has 405 places, 638 transitions, 4305 flow [2022-01-19 13:32:17,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:17,307 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:17,307 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:17,307 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 13:32:17,308 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:17,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:17,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1658822984, now seen corresponding path program 6 times [2022-01-19 13:32:17,308 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:17,308 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153645114] [2022-01-19 13:32:17,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:17,308 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:17,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:17,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:17,751 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:17,751 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153645114] [2022-01-19 13:32:17,751 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153645114] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:17,751 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:17,751 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:32:17,751 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040109439] [2022-01-19 13:32:17,751 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:17,751 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:32:17,751 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:17,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:32:17,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=491, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:32:17,756 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:32:17,758 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 638 transitions, 4305 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:17,758 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:17,758 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:32:17,758 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:22,922 INFO L129 PetriNetUnfolder]: 8793/16977 cut-off events. [2022-01-19 13:32:22,922 INFO L130 PetriNetUnfolder]: For 100175/100185 co-relation queries the response was YES. [2022-01-19 13:32:23,049 INFO L84 FinitePrefix]: Finished finitePrefix Result has 65268 conditions, 16977 events. 8793/16977 cut-off events. For 100175/100185 co-relation queries the response was YES. Maximal size of possible extension queue 474. Compared 136183 event pairs, 2480 based on Foata normal form. 7/15644 useless extension candidates. Maximal degree in co-relation 65158. Up to 9127 conditions per place. [2022-01-19 13:32:23,126 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 680 selfloop transitions, 291 changer transitions 22/1128 dead transitions. [2022-01-19 13:32:23,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 1128 transitions, 9660 flow [2022-01-19 13:32:23,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 52 states. [2022-01-19 13:32:23,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2022-01-19 13:32:23,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 8956 transitions. [2022-01-19 13:32:23,132 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7206308336015449 [2022-01-19 13:32:23,132 INFO L72 ComplementDD]: Start complementDD. Operand 52 states and 8956 transitions. [2022-01-19 13:32:23,132 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 8956 transitions. [2022-01-19 13:32:23,134 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:23,134 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 52 states and 8956 transitions. [2022-01-19 13:32:23,142 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 53 states, 52 states have (on average 172.23076923076923) internal successors, (8956), 52 states have internal predecessors, (8956), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:23,152 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:23,154 INFO L81 ComplementDD]: Finished complementDD. Result has 53 states, 53 states have (on average 239.0) internal successors, (12667), 53 states have internal predecessors, (12667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:23,154 INFO L186 Difference]: Start difference. First operand has 405 places, 638 transitions, 4305 flow. Second operand 52 states and 8956 transitions. [2022-01-19 13:32:23,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 1128 transitions, 9660 flow [2022-01-19 13:32:23,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 446 places, 1128 transitions, 8910 flow, removed 345 selfloop flow, removed 6 redundant places. [2022-01-19 13:32:23,670 INFO L242 Difference]: Finished difference. Result has 463 places, 851 transitions, 6539 flow [2022-01-19 13:32:23,671 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=3677, PETRI_DIFFERENCE_MINUEND_PLACES=395, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=638, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=105, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=510, PETRI_DIFFERENCE_SUBTRAHEND_STATES=52, PETRI_FLOW=6539, PETRI_PLACES=463, PETRI_TRANSITIONS=851} [2022-01-19 13:32:23,671 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 254 predicate places. [2022-01-19 13:32:23,671 INFO L470 AbstractCegarLoop]: Abstraction has has 463 places, 851 transitions, 6539 flow [2022-01-19 13:32:23,672 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:23,672 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:23,672 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:23,672 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 13:32:23,672 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:23,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:23,673 INFO L85 PathProgramCache]: Analyzing trace with hash -653315748, now seen corresponding path program 7 times [2022-01-19 13:32:23,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:23,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62333154] [2022-01-19 13:32:23,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:23,673 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:23,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:24,185 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:24,185 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:24,186 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62333154] [2022-01-19 13:32:24,186 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [62333154] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:24,186 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:24,186 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-19 13:32:24,186 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102194733] [2022-01-19 13:32:24,186 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:24,186 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-19 13:32:24,186 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:24,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-19 13:32:24,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=455, Unknown=0, NotChecked=0, Total=506 [2022-01-19 13:32:24,188 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:32:24,190 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 463 places, 851 transitions, 6539 flow. Second operand has 23 states, 23 states have (on average 165.47826086956522) internal successors, (3806), 23 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:24,190 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:24,190 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:32:24,190 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:30,492 INFO L129 PetriNetUnfolder]: 10480/20224 cut-off events. [2022-01-19 13:32:30,492 INFO L130 PetriNetUnfolder]: For 176675/176688 co-relation queries the response was YES. [2022-01-19 13:32:30,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83666 conditions, 20224 events. 10480/20224 cut-off events. For 176675/176688 co-relation queries the response was YES. Maximal size of possible extension queue 590. Compared 166871 event pairs, 2952 based on Foata normal form. 10/18588 useless extension candidates. Maximal degree in co-relation 83532. Up to 9769 conditions per place. [2022-01-19 13:32:30,898 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 756 selfloop transitions, 367 changer transitions 22/1280 dead transitions. [2022-01-19 13:32:30,899 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 512 places, 1280 transitions, 12512 flow [2022-01-19 13:32:30,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-19 13:32:30,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-01-19 13:32:30,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 9309 transitions. [2022-01-19 13:32:30,909 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7212924221292422 [2022-01-19 13:32:30,909 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 9309 transitions. [2022-01-19 13:32:30,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 9309 transitions. [2022-01-19 13:32:30,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:30,912 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 9309 transitions. [2022-01-19 13:32:30,926 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 172.38888888888889) internal successors, (9309), 54 states have internal predecessors, (9309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:30,941 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 239.0) internal successors, (13145), 55 states have internal predecessors, (13145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:30,942 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 239.0) internal successors, (13145), 55 states have internal predecessors, (13145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:30,942 INFO L186 Difference]: Start difference. First operand has 463 places, 851 transitions, 6539 flow. Second operand 54 states and 9309 transitions. [2022-01-19 13:32:30,942 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 512 places, 1280 transitions, 12512 flow [2022-01-19 13:32:32,102 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 507 places, 1280 transitions, 11706 flow, removed 401 selfloop flow, removed 5 redundant places. [2022-01-19 13:32:32,115 INFO L242 Difference]: Finished difference. Result has 531 places, 978 transitions, 8576 flow [2022-01-19 13:32:32,116 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=5859, PETRI_DIFFERENCE_MINUEND_PLACES=454, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=255, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=581, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=8576, PETRI_PLACES=531, PETRI_TRANSITIONS=978} [2022-01-19 13:32:32,117 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 322 predicate places. [2022-01-19 13:32:32,117 INFO L470 AbstractCegarLoop]: Abstraction has has 531 places, 978 transitions, 8576 flow [2022-01-19 13:32:32,117 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 165.47826086956522) internal successors, (3806), 23 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:32,117 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:32,118 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:32,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 13:32:32,118 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:32,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:32,118 INFO L85 PathProgramCache]: Analyzing trace with hash -88221392, now seen corresponding path program 8 times [2022-01-19 13:32:32,118 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:32,118 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1064532791] [2022-01-19 13:32:32,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:32,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:32,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:32,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:32,591 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:32,592 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1064532791] [2022-01-19 13:32:32,592 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1064532791] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:32,592 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:32,592 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:32:32,592 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082205322] [2022-01-19 13:32:32,592 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:32,592 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:32:32,593 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:32,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:32:32,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:32:32,597 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:32:32,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 531 places, 978 transitions, 8576 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:32,599 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:32,599 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:32:32,599 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:39,491 INFO L129 PetriNetUnfolder]: 11684/22608 cut-off events. [2022-01-19 13:32:39,491 INFO L130 PetriNetUnfolder]: For 290640/290655 co-relation queries the response was YES. [2022-01-19 13:32:39,742 INFO L84 FinitePrefix]: Finished finitePrefix Result has 101032 conditions, 22608 events. 11684/22608 cut-off events. For 290640/290655 co-relation queries the response was YES. Maximal size of possible extension queue 637. Compared 191106 event pairs, 3089 based on Foata normal form. 12/20706 useless extension candidates. Maximal degree in co-relation 100866. Up to 11777 conditions per place. [2022-01-19 13:32:39,840 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 847 selfloop transitions, 372 changer transitions 22/1376 dead transitions. [2022-01-19 13:32:39,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 576 places, 1376 transitions, 14517 flow [2022-01-19 13:32:39,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-19 13:32:39,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-01-19 13:32:39,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 8602 transitions. [2022-01-19 13:32:39,846 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7198326359832636 [2022-01-19 13:32:39,846 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 8602 transitions. [2022-01-19 13:32:39,846 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 8602 transitions. [2022-01-19 13:32:39,852 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:39,852 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 8602 transitions. [2022-01-19 13:32:39,859 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 172.04) internal successors, (8602), 50 states have internal predecessors, (8602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:39,867 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 239.0) internal successors, (12189), 51 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:39,867 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 239.0) internal successors, (12189), 51 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:39,868 INFO L186 Difference]: Start difference. First operand has 531 places, 978 transitions, 8576 flow. Second operand 50 states and 8602 transitions. [2022-01-19 13:32:39,868 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 576 places, 1376 transitions, 14517 flow [2022-01-19 13:32:41,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 569 places, 1376 transitions, 13519 flow, removed 456 selfloop flow, removed 7 redundant places. [2022-01-19 13:32:41,873 INFO L242 Difference]: Finished difference. Result has 580 places, 1112 transitions, 10398 flow [2022-01-19 13:32:41,873 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=7612, PETRI_DIFFERENCE_MINUEND_PLACES=520, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=978, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=253, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=717, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=10398, PETRI_PLACES=580, PETRI_TRANSITIONS=1112} [2022-01-19 13:32:41,874 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 371 predicate places. [2022-01-19 13:32:41,874 INFO L470 AbstractCegarLoop]: Abstraction has has 580 places, 1112 transitions, 10398 flow [2022-01-19 13:32:41,874 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:41,874 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:41,875 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:41,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 13:32:41,875 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:41,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:41,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1546862930, now seen corresponding path program 9 times [2022-01-19 13:32:41,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:41,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99179741] [2022-01-19 13:32:41,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:41,875 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:42,325 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:42,326 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:42,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99179741] [2022-01-19 13:32:42,326 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99179741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:42,326 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:42,326 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:32:42,326 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655766710] [2022-01-19 13:32:42,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:42,327 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:32:42,327 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:42,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:32:42,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:32:42,329 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:32:42,330 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 580 places, 1112 transitions, 10398 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:42,330 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:42,330 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:32:42,330 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:32:49,645 INFO L129 PetriNetUnfolder]: 12402/23934 cut-off events. [2022-01-19 13:32:49,646 INFO L130 PetriNetUnfolder]: For 337377/337392 co-relation queries the response was YES. [2022-01-19 13:32:49,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108491 conditions, 23934 events. 12402/23934 cut-off events. For 337377/337392 co-relation queries the response was YES. Maximal size of possible extension queue 689. Compared 204938 event pairs, 3605 based on Foata normal form. 12/21826 useless extension candidates. Maximal degree in co-relation 108307. Up to 12347 conditions per place. [2022-01-19 13:32:50,055 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 851 selfloop transitions, 434 changer transitions 22/1442 dead transitions. [2022-01-19 13:32:50,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 621 places, 1442 transitions, 15857 flow [2022-01-19 13:32:50,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2022-01-19 13:32:50,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2022-01-19 13:32:50,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 7899 transitions. [2022-01-19 13:32:50,062 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7184828088048026 [2022-01-19 13:32:50,062 INFO L72 ComplementDD]: Start complementDD. Operand 46 states and 7899 transitions. [2022-01-19 13:32:50,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 46 states and 7899 transitions. [2022-01-19 13:32:50,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:32:50,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 46 states and 7899 transitions. [2022-01-19 13:32:50,077 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 47 states, 46 states have (on average 171.7173913043478) internal successors, (7899), 46 states have internal predecessors, (7899), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:50,084 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 47 states, 47 states have (on average 239.0) internal successors, (11233), 47 states have internal predecessors, (11233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:50,085 INFO L81 ComplementDD]: Finished complementDD. Result has 47 states, 47 states have (on average 239.0) internal successors, (11233), 47 states have internal predecessors, (11233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:50,085 INFO L186 Difference]: Start difference. First operand has 580 places, 1112 transitions, 10398 flow. Second operand 46 states and 7899 transitions. [2022-01-19 13:32:50,085 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 621 places, 1442 transitions, 15857 flow [2022-01-19 13:32:52,489 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 612 places, 1442 transitions, 14537 flow, removed 564 selfloop flow, removed 9 redundant places. [2022-01-19 13:32:52,513 INFO L242 Difference]: Finished difference. Result has 621 places, 1207 transitions, 11767 flow [2022-01-19 13:32:52,514 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=9209, PETRI_DIFFERENCE_MINUEND_PLACES=567, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=354, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=751, PETRI_DIFFERENCE_SUBTRAHEND_STATES=46, PETRI_FLOW=11767, PETRI_PLACES=621, PETRI_TRANSITIONS=1207} [2022-01-19 13:32:52,514 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 412 predicate places. [2022-01-19 13:32:52,514 INFO L470 AbstractCegarLoop]: Abstraction has has 621 places, 1207 transitions, 11767 flow [2022-01-19 13:32:52,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:52,515 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:32:52,515 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:32:52,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 13:32:52,515 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:32:52,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:32:52,516 INFO L85 PathProgramCache]: Analyzing trace with hash -2109594836, now seen corresponding path program 10 times [2022-01-19 13:32:52,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:32:52,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250649396] [2022-01-19 13:32:52,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:32:52,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:32:52,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:32:52,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:32:52,993 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:32:52,993 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250649396] [2022-01-19 13:32:52,993 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250649396] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:32:52,993 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:32:52,993 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:32:52,993 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909141757] [2022-01-19 13:32:52,993 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:32:52,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:32:52,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:32:52,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:32:52,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:32:52,996 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:32:52,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 621 places, 1207 transitions, 11767 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:32:52,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:32:52,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:32:52,998 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:33:00,720 INFO L129 PetriNetUnfolder]: 13167/26186 cut-off events. [2022-01-19 13:33:00,721 INFO L130 PetriNetUnfolder]: For 368300/368315 co-relation queries the response was YES. [2022-01-19 13:33:01,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115898 conditions, 26186 events. 13167/26186 cut-off events. For 368300/368315 co-relation queries the response was YES. Maximal size of possible extension queue 754. Compared 234632 event pairs, 3575 based on Foata normal form. 12/23865 useless extension candidates. Maximal degree in co-relation 115699. Up to 12910 conditions per place. [2022-01-19 13:33:01,203 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 935 selfloop transitions, 452 changer transitions 22/1544 dead transitions. [2022-01-19 13:33:01,203 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 657 places, 1544 transitions, 17109 flow [2022-01-19 13:33:01,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 13:33:01,204 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 13:33:01,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7106 transitions. [2022-01-19 13:33:01,209 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7251760383712623 [2022-01-19 13:33:01,209 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 7106 transitions. [2022-01-19 13:33:01,209 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 7106 transitions. [2022-01-19 13:33:01,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:33:01,210 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 7106 transitions. [2022-01-19 13:33:01,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 173.3170731707317) internal successors, (7106), 41 states have internal predecessors, (7106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:01,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 239.0) internal successors, (10038), 42 states have internal predecessors, (10038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:01,223 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 239.0) internal successors, (10038), 42 states have internal predecessors, (10038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:01,223 INFO L186 Difference]: Start difference. First operand has 621 places, 1207 transitions, 11767 flow. Second operand 41 states and 7106 transitions. [2022-01-19 13:33:01,223 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 657 places, 1544 transitions, 17109 flow [2022-01-19 13:33:05,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 648 places, 1544 transitions, 15909 flow, removed 478 selfloop flow, removed 9 redundant places. [2022-01-19 13:33:05,125 INFO L242 Difference]: Finished difference. Result has 660 places, 1279 transitions, 12948 flow [2022-01-19 13:33:05,126 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=10679, PETRI_DIFFERENCE_MINUEND_PLACES=608, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=387, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=808, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=12948, PETRI_PLACES=660, PETRI_TRANSITIONS=1279} [2022-01-19 13:33:05,126 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 451 predicate places. [2022-01-19 13:33:05,126 INFO L470 AbstractCegarLoop]: Abstraction has has 660 places, 1279 transitions, 12948 flow [2022-01-19 13:33:05,127 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:05,127 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:33:05,127 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:33:05,127 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 13:33:05,127 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:33:05,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:33:05,128 INFO L85 PathProgramCache]: Analyzing trace with hash 2043884936, now seen corresponding path program 11 times [2022-01-19 13:33:05,128 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:33:05,128 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175190281] [2022-01-19 13:33:05,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:33:05,128 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:33:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:33:05,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:33:05,904 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:33:05,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175190281] [2022-01-19 13:33:05,904 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175190281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:33:05,904 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:33:05,904 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-19 13:33:05,904 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071278295] [2022-01-19 13:33:05,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:33:05,904 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-19 13:33:05,904 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:33:05,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-19 13:33:05,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=629, Unknown=0, NotChecked=0, Total=702 [2022-01-19 13:33:05,906 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 239 [2022-01-19 13:33:05,908 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 660 places, 1279 transitions, 12948 flow. Second operand has 27 states, 27 states have (on average 161.22222222222223) internal successors, (4353), 27 states have internal predecessors, (4353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:05,908 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:33:05,908 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 239 [2022-01-19 13:33:05,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:33:16,180 INFO L129 PetriNetUnfolder]: 15425/29911 cut-off events. [2022-01-19 13:33:16,180 INFO L130 PetriNetUnfolder]: For 311548/311552 co-relation queries the response was YES. [2022-01-19 13:33:16,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 133561 conditions, 29911 events. 15425/29911 cut-off events. For 311548/311552 co-relation queries the response was YES. Maximal size of possible extension queue 799. Compared 267158 event pairs, 3849 based on Foata normal form. 1/27225 useless extension candidates. Maximal degree in co-relation 133342. Up to 13722 conditions per place. [2022-01-19 13:33:16,926 INFO L132 encePairwiseOnDemand]: 213/239 looper letters, 1139 selfloop transitions, 669 changer transitions 22/1960 dead transitions. [2022-01-19 13:33:16,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 712 places, 1960 transitions, 24293 flow [2022-01-19 13:33:16,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-19 13:33:16,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 57 states. [2022-01-19 13:33:16,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 9590 transitions. [2022-01-19 13:33:16,933 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.703956544079865 [2022-01-19 13:33:16,933 INFO L72 ComplementDD]: Start complementDD. Operand 57 states and 9590 transitions. [2022-01-19 13:33:16,933 INFO L73 IsDeterministic]: Start isDeterministic. Operand 57 states and 9590 transitions. [2022-01-19 13:33:16,935 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:33:16,935 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 57 states and 9590 transitions. [2022-01-19 13:33:16,943 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 58 states, 57 states have (on average 168.24561403508773) internal successors, (9590), 57 states have internal predecessors, (9590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:16,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 58 states, 58 states have (on average 239.0) internal successors, (13862), 58 states have internal predecessors, (13862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:16,952 INFO L81 ComplementDD]: Finished complementDD. Result has 58 states, 58 states have (on average 239.0) internal successors, (13862), 58 states have internal predecessors, (13862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:16,952 INFO L186 Difference]: Start difference. First operand has 660 places, 1279 transitions, 12948 flow. Second operand 57 states and 9590 transitions. [2022-01-19 13:33:16,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 712 places, 1960 transitions, 24293 flow [2022-01-19 13:33:20,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 701 places, 1960 transitions, 22957 flow, removed 413 selfloop flow, removed 11 redundant places. [2022-01-19 13:33:20,884 INFO L242 Difference]: Finished difference. Result has 730 places, 1667 transitions, 19717 flow [2022-01-19 13:33:20,886 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=11986, PETRI_DIFFERENCE_MINUEND_PLACES=645, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1279, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=331, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=854, PETRI_DIFFERENCE_SUBTRAHEND_STATES=57, PETRI_FLOW=19717, PETRI_PLACES=730, PETRI_TRANSITIONS=1667} [2022-01-19 13:33:20,886 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 521 predicate places. [2022-01-19 13:33:20,887 INFO L470 AbstractCegarLoop]: Abstraction has has 730 places, 1667 transitions, 19717 flow [2022-01-19 13:33:20,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 161.22222222222223) internal successors, (4353), 27 states have internal predecessors, (4353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:20,887 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:33:20,887 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:33:20,887 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 13:33:20,888 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:33:20,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:33:20,888 INFO L85 PathProgramCache]: Analyzing trace with hash 1591201676, now seen corresponding path program 12 times [2022-01-19 13:33:20,888 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:33:20,888 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724644752] [2022-01-19 13:33:20,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:33:20,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:33:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:33:21,629 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:33:21,629 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:33:21,629 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724644752] [2022-01-19 13:33:21,629 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724644752] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:33:21,629 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:33:21,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-19 13:33:21,630 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640639374] [2022-01-19 13:33:21,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:33:21,630 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-19 13:33:21,630 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:33:21,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-19 13:33:21,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=673, Unknown=0, NotChecked=0, Total=756 [2022-01-19 13:33:21,632 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 239 [2022-01-19 13:33:21,634 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 730 places, 1667 transitions, 19717 flow. Second operand has 28 states, 28 states have (on average 161.14285714285714) internal successors, (4512), 28 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:21,634 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:33:21,634 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 239 [2022-01-19 13:33:21,634 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:33:34,334 INFO L129 PetriNetUnfolder]: 16792/32630 cut-off events. [2022-01-19 13:33:34,334 INFO L130 PetriNetUnfolder]: For 452770/452777 co-relation queries the response was YES. [2022-01-19 13:33:35,214 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158783 conditions, 32630 events. 16792/32630 cut-off events. For 452770/452777 co-relation queries the response was YES. Maximal size of possible extension queue 843. Compared 295899 event pairs, 4301 based on Foata normal form. 5/29740 useless extension candidates. Maximal degree in co-relation 158527. Up to 15069 conditions per place. [2022-01-19 13:33:35,370 INFO L132 encePairwiseOnDemand]: 213/239 looper letters, 1258 selfloop transitions, 858 changer transitions 22/2268 dead transitions. [2022-01-19 13:33:35,370 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 790 places, 2268 transitions, 31567 flow [2022-01-19 13:33:35,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2022-01-19 13:33:35,371 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2022-01-19 13:33:35,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 10747 transitions. [2022-01-19 13:33:35,376 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7026019874476988 [2022-01-19 13:33:35,376 INFO L72 ComplementDD]: Start complementDD. Operand 64 states and 10747 transitions. [2022-01-19 13:33:35,376 INFO L73 IsDeterministic]: Start isDeterministic. Operand 64 states and 10747 transitions. [2022-01-19 13:33:35,377 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:33:35,378 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 64 states and 10747 transitions. [2022-01-19 13:33:35,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 65 states, 64 states have (on average 167.921875) internal successors, (10747), 64 states have internal predecessors, (10747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:35,392 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 65 states, 65 states have (on average 239.0) internal successors, (15535), 65 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:35,393 INFO L81 ComplementDD]: Finished complementDD. Result has 65 states, 65 states have (on average 239.0) internal successors, (15535), 65 states have internal predecessors, (15535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:35,393 INFO L186 Difference]: Start difference. First operand has 730 places, 1667 transitions, 19717 flow. Second operand 64 states and 10747 transitions. [2022-01-19 13:33:35,393 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 790 places, 2268 transitions, 31567 flow [2022-01-19 13:33:39,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 2268 transitions, 30525 flow, removed 519 selfloop flow, removed 5 redundant places. [2022-01-19 13:33:39,488 INFO L242 Difference]: Finished difference. Result has 807 places, 1951 transitions, 26692 flow [2022-01-19 13:33:39,489 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=18779, PETRI_DIFFERENCE_MINUEND_PLACES=722, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1667, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=600, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1041, PETRI_DIFFERENCE_SUBTRAHEND_STATES=64, PETRI_FLOW=26692, PETRI_PLACES=807, PETRI_TRANSITIONS=1951} [2022-01-19 13:33:39,490 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 598 predicate places. [2022-01-19 13:33:39,490 INFO L470 AbstractCegarLoop]: Abstraction has has 807 places, 1951 transitions, 26692 flow [2022-01-19 13:33:39,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 161.14285714285714) internal successors, (4512), 28 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:39,490 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:33:39,490 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:33:39,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 13:33:39,491 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:33:39,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:33:39,491 INFO L85 PathProgramCache]: Analyzing trace with hash 361135332, now seen corresponding path program 13 times [2022-01-19 13:33:39,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:33:39,491 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [595739080] [2022-01-19 13:33:39,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:33:39,491 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:33:39,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:33:40,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:33:40,295 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:33:40,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [595739080] [2022-01-19 13:33:40,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [595739080] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:33:40,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:33:40,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-19 13:33:40,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [625755301] [2022-01-19 13:33:40,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:33:40,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-19 13:33:40,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:33:40,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-19 13:33:40,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=674, Unknown=0, NotChecked=0, Total=756 [2022-01-19 13:33:40,298 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 239 [2022-01-19 13:33:40,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 807 places, 1951 transitions, 26692 flow. Second operand has 28 states, 28 states have (on average 161.14285714285714) internal successors, (4512), 28 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:40,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:33:40,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 239 [2022-01-19 13:33:40,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:33:55,704 INFO L129 PetriNetUnfolder]: 18363/35636 cut-off events. [2022-01-19 13:33:55,705 INFO L130 PetriNetUnfolder]: For 661428/661430 co-relation queries the response was YES. [2022-01-19 13:33:57,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185311 conditions, 35636 events. 18363/35636 cut-off events. For 661428/661430 co-relation queries the response was YES. Maximal size of possible extension queue 937. Compared 327019 event pairs, 4344 based on Foata normal form. 3/32502 useless extension candidates. Maximal degree in co-relation 185025. Up to 16025 conditions per place. [2022-01-19 13:33:57,411 INFO L132 encePairwiseOnDemand]: 213/239 looper letters, 1333 selfloop transitions, 953 changer transitions 22/2438 dead transitions. [2022-01-19 13:33:57,411 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 857 places, 2438 transitions, 37049 flow [2022-01-19 13:33:57,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2022-01-19 13:33:57,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 54 states. [2022-01-19 13:33:57,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 9141 transitions. [2022-01-19 13:33:57,415 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.708275220827522 [2022-01-19 13:33:57,415 INFO L72 ComplementDD]: Start complementDD. Operand 54 states and 9141 transitions. [2022-01-19 13:33:57,415 INFO L73 IsDeterministic]: Start isDeterministic. Operand 54 states and 9141 transitions. [2022-01-19 13:33:57,417 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:33:57,417 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 54 states and 9141 transitions. [2022-01-19 13:33:57,422 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 55 states, 54 states have (on average 169.27777777777777) internal successors, (9141), 54 states have internal predecessors, (9141), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:57,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 55 states, 55 states have (on average 239.0) internal successors, (13145), 55 states have internal predecessors, (13145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:57,430 INFO L81 ComplementDD]: Finished complementDD. Result has 55 states, 55 states have (on average 239.0) internal successors, (13145), 55 states have internal predecessors, (13145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:33:57,430 INFO L186 Difference]: Start difference. First operand has 807 places, 1951 transitions, 26692 flow. Second operand 54 states and 9141 transitions. [2022-01-19 13:33:57,430 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 857 places, 2438 transitions, 37049 flow [2022-01-19 13:34:03,773 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 850 places, 2438 transitions, 33939 flow, removed 1462 selfloop flow, removed 7 redundant places. [2022-01-19 13:34:03,804 INFO L242 Difference]: Finished difference. Result has 866 places, 2110 transitions, 29602 flow [2022-01-19 13:34:03,806 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=24050, PETRI_DIFFERENCE_MINUEND_PLACES=797, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1951, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=812, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=54, PETRI_FLOW=29602, PETRI_PLACES=866, PETRI_TRANSITIONS=2110} [2022-01-19 13:34:03,806 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 657 predicate places. [2022-01-19 13:34:03,806 INFO L470 AbstractCegarLoop]: Abstraction has has 866 places, 2110 transitions, 29602 flow [2022-01-19 13:34:03,807 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 161.14285714285714) internal successors, (4512), 28 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:03,807 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:34:03,807 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:34:03,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 13:34:03,807 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:34:03,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:34:03,807 INFO L85 PathProgramCache]: Analyzing trace with hash -476255420, now seen corresponding path program 14 times [2022-01-19 13:34:03,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:34:03,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1314117206] [2022-01-19 13:34:03,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:34:03,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:34:03,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:34:04,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:34:04,222 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:34:04,222 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1314117206] [2022-01-19 13:34:04,222 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1314117206] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:34:04,222 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:34:04,222 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-19 13:34:04,222 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [882129388] [2022-01-19 13:34:04,222 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:34:04,222 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-19 13:34:04,222 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:34:04,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-19 13:34:04,223 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=447, Unknown=0, NotChecked=0, Total=506 [2022-01-19 13:34:04,224 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:34:04,225 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 866 places, 2110 transitions, 29602 flow. Second operand has 23 states, 23 states have (on average 165.47826086956522) internal successors, (3806), 23 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:04,225 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:34:04,225 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:34:04,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:34:17,188 INFO L129 PetriNetUnfolder]: 18590/35834 cut-off events. [2022-01-19 13:34:17,189 INFO L130 PetriNetUnfolder]: For 776791/776837 co-relation queries the response was YES. [2022-01-19 13:34:19,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 190358 conditions, 35834 events. 18590/35834 cut-off events. For 776791/776837 co-relation queries the response was YES. Maximal size of possible extension queue 972. Compared 328371 event pairs, 4641 based on Foata normal form. 5/32585 useless extension candidates. Maximal degree in co-relation 190077. Up to 16528 conditions per place. [2022-01-19 13:34:19,992 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 1244 selfloop transitions, 998 changer transitions 22/2403 dead transitions. [2022-01-19 13:34:19,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 897 places, 2403 transitions, 37362 flow [2022-01-19 13:34:19,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-01-19 13:34:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 35 states. [2022-01-19 13:34:19,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 6066 transitions. [2022-01-19 13:34:19,996 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7251643753735804 [2022-01-19 13:34:19,996 INFO L72 ComplementDD]: Start complementDD. Operand 35 states and 6066 transitions. [2022-01-19 13:34:19,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 35 states and 6066 transitions. [2022-01-19 13:34:19,997 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:34:19,997 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 35 states and 6066 transitions. [2022-01-19 13:34:20,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 36 states, 35 states have (on average 173.31428571428572) internal successors, (6066), 35 states have internal predecessors, (6066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:20,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 36 states, 36 states have (on average 239.0) internal successors, (8604), 36 states have internal predecessors, (8604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:20,008 INFO L81 ComplementDD]: Finished complementDD. Result has 36 states, 36 states have (on average 239.0) internal successors, (8604), 36 states have internal predecessors, (8604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:20,008 INFO L186 Difference]: Start difference. First operand has 866 places, 2110 transitions, 29602 flow. Second operand 35 states and 6066 transitions. [2022-01-19 13:34:20,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 897 places, 2403 transitions, 37362 flow [2022-01-19 13:34:31,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 885 places, 2403 transitions, 35090 flow, removed 900 selfloop flow, removed 12 redundant places. [2022-01-19 13:34:32,824 INFO L242 Difference]: Finished difference. Result has 894 places, 2199 transitions, 31457 flow [2022-01-19 13:34:32,825 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=27346, PETRI_DIFFERENCE_MINUEND_PLACES=851, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=919, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=35, PETRI_FLOW=31457, PETRI_PLACES=894, PETRI_TRANSITIONS=2199} [2022-01-19 13:34:32,826 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 685 predicate places. [2022-01-19 13:34:32,826 INFO L470 AbstractCegarLoop]: Abstraction has has 894 places, 2199 transitions, 31457 flow [2022-01-19 13:34:32,826 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 165.47826086956522) internal successors, (3806), 23 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:32,826 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:34:32,826 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:34:32,827 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 13:34:32,827 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:34:32,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:34:32,827 INFO L85 PathProgramCache]: Analyzing trace with hash -1666601890, now seen corresponding path program 15 times [2022-01-19 13:34:32,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:34:32,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1371200574] [2022-01-19 13:34:32,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:34:32,827 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:34:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:34:34,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:34:34,122 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:34:34,122 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1371200574] [2022-01-19 13:34:34,122 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1371200574] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:34:34,122 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:34:34,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:34:34,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [454501511] [2022-01-19 13:34:34,123 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:34:34,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:34:34,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:34:34,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:34:34,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:34:34,125 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:34:34,126 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 894 places, 2199 transitions, 31457 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:34,126 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:34:34,126 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:34:34,126 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:34:48,352 INFO L129 PetriNetUnfolder]: 19072/37190 cut-off events. [2022-01-19 13:34:48,353 INFO L130 PetriNetUnfolder]: For 828159/828205 co-relation queries the response was YES. [2022-01-19 13:34:49,663 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196479 conditions, 37190 events. 19072/37190 cut-off events. For 828159/828205 co-relation queries the response was YES. Maximal size of possible extension queue 996. Compared 346462 event pairs, 4379 based on Foata normal form. 5/33695 useless extension candidates. Maximal degree in co-relation 196186. Up to 16997 conditions per place. [2022-01-19 13:34:49,847 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 1413 selfloop transitions, 939 changer transitions 22/2513 dead transitions. [2022-01-19 13:34:49,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 930 places, 2513 transitions, 39538 flow [2022-01-19 13:34:49,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 13:34:49,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 13:34:49,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 7097 transitions. [2022-01-19 13:34:49,851 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7242575773038065 [2022-01-19 13:34:49,851 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 7097 transitions. [2022-01-19 13:34:49,851 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 7097 transitions. [2022-01-19 13:34:49,851 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:34:49,851 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 7097 transitions. [2022-01-19 13:34:49,855 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 173.09756097560975) internal successors, (7097), 41 states have internal predecessors, (7097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:49,860 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 239.0) internal successors, (10038), 42 states have internal predecessors, (10038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:49,860 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 239.0) internal successors, (10038), 42 states have internal predecessors, (10038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:49,860 INFO L186 Difference]: Start difference. First operand has 894 places, 2199 transitions, 31457 flow. Second operand 41 states and 7097 transitions. [2022-01-19 13:34:49,860 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 930 places, 2513 transitions, 39538 flow [2022-01-19 13:34:56,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 921 places, 2513 transitions, 38280 flow, removed 396 selfloop flow, removed 9 redundant places. [2022-01-19 13:34:57,012 INFO L242 Difference]: Finished difference. Result has 929 places, 2259 transitions, 33727 flow [2022-01-19 13:34:57,013 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=30229, PETRI_DIFFERENCE_MINUEND_PLACES=881, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2199, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=887, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=33727, PETRI_PLACES=929, PETRI_TRANSITIONS=2259} [2022-01-19 13:34:57,013 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 720 predicate places. [2022-01-19 13:34:57,014 INFO L470 AbstractCegarLoop]: Abstraction has has 929 places, 2259 transitions, 33727 flow [2022-01-19 13:34:57,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:57,014 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:34:57,014 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:34:57,014 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 13:34:57,014 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:34:57,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:34:57,015 INFO L85 PathProgramCache]: Analyzing trace with hash 1560086346, now seen corresponding path program 16 times [2022-01-19 13:34:57,015 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:34:57,015 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014446722] [2022-01-19 13:34:57,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:34:57,015 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:34:57,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:34:57,444 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:34:57,444 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:34:57,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014446722] [2022-01-19 13:34:57,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014446722] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:34:57,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:34:57,445 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2022-01-19 13:34:57,445 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1483207939] [2022-01-19 13:34:57,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:34:57,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-01-19 13:34:57,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:34:57,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-01-19 13:34:57,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2022-01-19 13:34:57,447 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:34:57,448 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 929 places, 2259 transitions, 33727 flow. Second operand has 23 states, 23 states have (on average 165.47826086956522) internal successors, (3806), 23 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:34:57,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:34:57,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:34:57,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:35:12,757 INFO L129 PetriNetUnfolder]: 19361/37919 cut-off events. [2022-01-19 13:35:12,757 INFO L130 PetriNetUnfolder]: For 871059/871105 co-relation queries the response was YES. [2022-01-19 13:35:13,921 INFO L84 FinitePrefix]: Finished finitePrefix Result has 202761 conditions, 37919 events. 19361/37919 cut-off events. For 871059/871105 co-relation queries the response was YES. Maximal size of possible extension queue 1015. Compared 355460 event pairs, 4634 based on Foata normal form. 5/34345 useless extension candidates. Maximal degree in co-relation 202465. Up to 17443 conditions per place. [2022-01-19 13:35:14,125 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 1383 selfloop transitions, 983 changer transitions 22/2527 dead transitions. [2022-01-19 13:35:14,125 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 962 places, 2527 transitions, 41621 flow [2022-01-19 13:35:14,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-01-19 13:35:14,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2022-01-19 13:35:14,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 6586 transitions. [2022-01-19 13:35:14,128 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7251706672539089 [2022-01-19 13:35:14,128 INFO L72 ComplementDD]: Start complementDD. Operand 38 states and 6586 transitions. [2022-01-19 13:35:14,128 INFO L73 IsDeterministic]: Start isDeterministic. Operand 38 states and 6586 transitions. [2022-01-19 13:35:14,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:35:14,129 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 38 states and 6586 transitions. [2022-01-19 13:35:14,133 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 39 states, 38 states have (on average 173.31578947368422) internal successors, (6586), 38 states have internal predecessors, (6586), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:14,138 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 39 states, 39 states have (on average 239.0) internal successors, (9321), 39 states have internal predecessors, (9321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:14,139 INFO L81 ComplementDD]: Finished complementDD. Result has 39 states, 39 states have (on average 239.0) internal successors, (9321), 39 states have internal predecessors, (9321), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:14,139 INFO L186 Difference]: Start difference. First operand has 929 places, 2259 transitions, 33727 flow. Second operand 38 states and 6586 transitions. [2022-01-19 13:35:14,139 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 962 places, 2527 transitions, 41621 flow [2022-01-19 13:35:21,616 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 950 places, 2527 transitions, 39864 flow, removed 588 selfloop flow, removed 12 redundant places. [2022-01-19 13:35:21,648 INFO L242 Difference]: Finished difference. Result has 958 places, 2299 transitions, 35317 flow [2022-01-19 13:35:21,650 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=32142, PETRI_DIFFERENCE_MINUEND_PLACES=913, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=948, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=38, PETRI_FLOW=35317, PETRI_PLACES=958, PETRI_TRANSITIONS=2299} [2022-01-19 13:35:21,650 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 749 predicate places. [2022-01-19 13:35:21,650 INFO L470 AbstractCegarLoop]: Abstraction has has 958 places, 2299 transitions, 35317 flow [2022-01-19 13:35:21,650 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 165.47826086956522) internal successors, (3806), 23 states have internal predecessors, (3806), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:21,650 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:35:21,651 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:35:21,651 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 13:35:21,651 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:35:21,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:35:21,651 INFO L85 PathProgramCache]: Analyzing trace with hash 2143354116, now seen corresponding path program 17 times [2022-01-19 13:35:21,651 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:35:21,651 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104395185] [2022-01-19 13:35:21,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:35:21,651 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:35:21,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:35:22,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:35:22,081 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:35:22,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104395185] [2022-01-19 13:35:22,081 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2104395185] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:35:22,081 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:35:22,081 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:35:22,081 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1420050661] [2022-01-19 13:35:22,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:35:22,081 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:35:22,081 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:35:22,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:35:22,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:35:22,083 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:35:22,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 958 places, 2299 transitions, 35317 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:22,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:35:22,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:35:22,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:35:37,765 INFO L129 PetriNetUnfolder]: 19710/38467 cut-off events. [2022-01-19 13:35:37,765 INFO L130 PetriNetUnfolder]: For 860502/860548 co-relation queries the response was YES. [2022-01-19 13:35:39,233 INFO L84 FinitePrefix]: Finished finitePrefix Result has 207265 conditions, 38467 events. 19710/38467 cut-off events. For 860502/860548 co-relation queries the response was YES. Maximal size of possible extension queue 1040. Compared 360697 event pairs, 4965 based on Foata normal form. 5/34785 useless extension candidates. Maximal degree in co-relation 206962. Up to 17834 conditions per place. [2022-01-19 13:35:39,567 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 1415 selfloop transitions, 968 changer transitions 22/2544 dead transitions. [2022-01-19 13:35:39,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 989 places, 2544 transitions, 42319 flow [2022-01-19 13:35:39,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-01-19 13:35:39,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2022-01-19 13:35:39,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 6233 transitions. [2022-01-19 13:35:39,570 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7244304974430498 [2022-01-19 13:35:39,570 INFO L72 ComplementDD]: Start complementDD. Operand 36 states and 6233 transitions. [2022-01-19 13:35:39,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 36 states and 6233 transitions. [2022-01-19 13:35:39,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:35:39,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 36 states and 6233 transitions. [2022-01-19 13:35:39,574 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 37 states, 36 states have (on average 173.13888888888889) internal successors, (6233), 36 states have internal predecessors, (6233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:39,577 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 37 states, 37 states have (on average 239.0) internal successors, (8843), 37 states have internal predecessors, (8843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:39,578 INFO L81 ComplementDD]: Finished complementDD. Result has 37 states, 37 states have (on average 239.0) internal successors, (8843), 37 states have internal predecessors, (8843), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:39,578 INFO L186 Difference]: Start difference. First operand has 958 places, 2299 transitions, 35317 flow. Second operand 36 states and 6233 transitions. [2022-01-19 13:35:39,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 989 places, 2544 transitions, 42319 flow [2022-01-19 13:35:46,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 972 places, 2544 transitions, 40760 flow, removed 368 selfloop flow, removed 17 redundant places. [2022-01-19 13:35:46,053 INFO L242 Difference]: Finished difference. Result has 978 places, 2328 transitions, 36784 flow [2022-01-19 13:35:46,054 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=33784, PETRI_DIFFERENCE_MINUEND_PLACES=937, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2299, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=945, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1351, PETRI_DIFFERENCE_SUBTRAHEND_STATES=36, PETRI_FLOW=36784, PETRI_PLACES=978, PETRI_TRANSITIONS=2328} [2022-01-19 13:35:46,055 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 769 predicate places. [2022-01-19 13:35:46,055 INFO L470 AbstractCegarLoop]: Abstraction has has 978 places, 2328 transitions, 36784 flow [2022-01-19 13:35:46,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:46,055 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:35:46,056 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:35:46,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 13:35:46,056 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:35:46,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:35:46,056 INFO L85 PathProgramCache]: Analyzing trace with hash 2057651100, now seen corresponding path program 18 times [2022-01-19 13:35:46,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:35:46,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296808072] [2022-01-19 13:35:46,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:35:46,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:35:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:35:46,755 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:35:46,755 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:35:46,755 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296808072] [2022-01-19 13:35:46,755 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296808072] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:35:46,755 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:35:46,755 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2022-01-19 13:35:46,755 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999971465] [2022-01-19 13:35:46,755 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:35:46,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2022-01-19 13:35:46,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:35:46,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2022-01-19 13:35:46,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=670, Unknown=0, NotChecked=0, Total=756 [2022-01-19 13:35:46,758 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 239 [2022-01-19 13:35:46,759 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 978 places, 2328 transitions, 36784 flow. Second operand has 28 states, 28 states have (on average 161.14285714285714) internal successors, (4512), 28 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:35:46,759 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:35:46,759 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 239 [2022-01-19 13:35:46,759 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:36:04,302 INFO L129 PetriNetUnfolder]: 20220/39806 cut-off events. [2022-01-19 13:36:04,303 INFO L130 PetriNetUnfolder]: For 904264/904266 co-relation queries the response was YES. [2022-01-19 13:36:06,258 INFO L84 FinitePrefix]: Finished finitePrefix Result has 215034 conditions, 39806 events. 20220/39806 cut-off events. For 904264/904266 co-relation queries the response was YES. Maximal size of possible extension queue 1069. Compared 376366 event pairs, 4760 based on Foata normal form. 3/35980 useless extension candidates. Maximal degree in co-relation 214661. Up to 18324 conditions per place. [2022-01-19 13:36:06,593 INFO L132 encePairwiseOnDemand]: 213/239 looper letters, 1500 selfloop transitions, 992 changer transitions 22/2644 dead transitions. [2022-01-19 13:36:06,594 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1023 places, 2644 transitions, 44774 flow [2022-01-19 13:36:06,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-01-19 13:36:06,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2022-01-19 13:36:06,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 8465 transitions. [2022-01-19 13:36:06,598 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7083682008368201 [2022-01-19 13:36:06,598 INFO L72 ComplementDD]: Start complementDD. Operand 50 states and 8465 transitions. [2022-01-19 13:36:06,598 INFO L73 IsDeterministic]: Start isDeterministic. Operand 50 states and 8465 transitions. [2022-01-19 13:36:06,599 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:36:06,599 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 50 states and 8465 transitions. [2022-01-19 13:36:06,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 51 states, 50 states have (on average 169.3) internal successors, (8465), 50 states have internal predecessors, (8465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:06,609 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 51 states, 51 states have (on average 239.0) internal successors, (12189), 51 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:06,609 INFO L81 ComplementDD]: Finished complementDD. Result has 51 states, 51 states have (on average 239.0) internal successors, (12189), 51 states have internal predecessors, (12189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:06,609 INFO L186 Difference]: Start difference. First operand has 978 places, 2328 transitions, 36784 flow. Second operand 50 states and 8465 transitions. [2022-01-19 13:36:06,610 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1023 places, 2644 transitions, 44774 flow [2022-01-19 13:36:15,517 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1009 places, 2644 transitions, 43092 flow, removed 432 selfloop flow, removed 14 redundant places. [2022-01-19 13:36:15,550 INFO L242 Difference]: Finished difference. Result has 1014 places, 2353 transitions, 37974 flow [2022-01-19 13:36:15,552 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=35118, PETRI_DIFFERENCE_MINUEND_PLACES=960, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=971, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1355, PETRI_DIFFERENCE_SUBTRAHEND_STATES=50, PETRI_FLOW=37974, PETRI_PLACES=1014, PETRI_TRANSITIONS=2353} [2022-01-19 13:36:15,552 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 805 predicate places. [2022-01-19 13:36:15,552 INFO L470 AbstractCegarLoop]: Abstraction has has 1014 places, 2353 transitions, 37974 flow [2022-01-19 13:36:15,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 161.14285714285714) internal successors, (4512), 28 states have internal predecessors, (4512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:15,553 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:36:15,553 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:36:15,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 13:36:15,553 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:36:15,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:36:15,554 INFO L85 PathProgramCache]: Analyzing trace with hash -26021848, now seen corresponding path program 19 times [2022-01-19 13:36:15,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:36:15,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197007480] [2022-01-19 13:36:15,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:36:15,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:36:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:36:15,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:36:15,971 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:36:15,971 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197007480] [2022-01-19 13:36:15,971 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197007480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:36:15,971 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:36:15,971 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:36:15,972 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375619939] [2022-01-19 13:36:15,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:36:15,972 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:36:15,972 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:36:15,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:36:15,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:36:15,974 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:36:15,975 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1014 places, 2353 transitions, 37974 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:15,975 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:36:15,975 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:36:15,975 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:36:32,126 INFO L129 PetriNetUnfolder]: 20226/39652 cut-off events. [2022-01-19 13:36:32,127 INFO L130 PetriNetUnfolder]: For 940825/940871 co-relation queries the response was YES. [2022-01-19 13:36:33,650 INFO L84 FinitePrefix]: Finished finitePrefix Result has 217892 conditions, 39652 events. 20226/39652 cut-off events. For 940825/940871 co-relation queries the response was YES. Maximal size of possible extension queue 1103. Compared 375214 event pairs, 4880 based on Foata normal form. 5/35732 useless extension candidates. Maximal degree in co-relation 217576. Up to 18637 conditions per place. [2022-01-19 13:36:33,862 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 1433 selfloop transitions, 973 changer transitions 22/2567 dead transitions. [2022-01-19 13:36:33,862 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1042 places, 2567 transitions, 44767 flow [2022-01-19 13:36:33,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2022-01-19 13:36:33,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2022-01-19 13:36:33,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 5551 transitions. [2022-01-19 13:36:33,865 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.725810669456067 [2022-01-19 13:36:33,865 INFO L72 ComplementDD]: Start complementDD. Operand 32 states and 5551 transitions. [2022-01-19 13:36:33,865 INFO L73 IsDeterministic]: Start isDeterministic. Operand 32 states and 5551 transitions. [2022-01-19 13:36:33,865 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:36:33,865 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 32 states and 5551 transitions. [2022-01-19 13:36:33,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 33 states, 32 states have (on average 173.46875) internal successors, (5551), 32 states have internal predecessors, (5551), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:33,871 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 33 states, 33 states have (on average 239.0) internal successors, (7887), 33 states have internal predecessors, (7887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:33,872 INFO L81 ComplementDD]: Finished complementDD. Result has 33 states, 33 states have (on average 239.0) internal successors, (7887), 33 states have internal predecessors, (7887), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:33,872 INFO L186 Difference]: Start difference. First operand has 1014 places, 2353 transitions, 37974 flow. Second operand 32 states and 5551 transitions. [2022-01-19 13:36:33,872 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1042 places, 2567 transitions, 44767 flow [2022-01-19 13:36:42,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1012 places, 2567 transitions, 43091 flow, removed 370 selfloop flow, removed 30 redundant places. [2022-01-19 13:36:42,074 INFO L242 Difference]: Finished difference. Result has 1017 places, 2374 transitions, 39144 flow [2022-01-19 13:36:42,076 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=36314, PETRI_DIFFERENCE_MINUEND_PLACES=981, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2353, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=956, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1395, PETRI_DIFFERENCE_SUBTRAHEND_STATES=32, PETRI_FLOW=39144, PETRI_PLACES=1017, PETRI_TRANSITIONS=2374} [2022-01-19 13:36:42,076 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 808 predicate places. [2022-01-19 13:36:42,076 INFO L470 AbstractCegarLoop]: Abstraction has has 1017 places, 2374 transitions, 39144 flow [2022-01-19 13:36:42,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:42,077 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:36:42,077 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:36:42,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 13:36:42,077 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:36:42,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:36:42,077 INFO L85 PathProgramCache]: Analyzing trace with hash -914051586, now seen corresponding path program 20 times [2022-01-19 13:36:42,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:36:42,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1454507450] [2022-01-19 13:36:42,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:36:42,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:36:42,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:36:42,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:36:42,491 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:36:42,491 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1454507450] [2022-01-19 13:36:42,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1454507450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:36:42,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:36:42,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:36:42,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790847913] [2022-01-19 13:36:42,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:36:42,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:36:42,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:36:42,492 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:36:42,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=492, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:36:42,494 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:36:42,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1017 places, 2374 transitions, 39144 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:36:42,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:36:42,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:36:42,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:36:59,253 INFO L129 PetriNetUnfolder]: 20495/40561 cut-off events. [2022-01-19 13:36:59,253 INFO L130 PetriNetUnfolder]: For 1003912/1003958 co-relation queries the response was YES. [2022-01-19 13:37:01,643 INFO L84 FinitePrefix]: Finished finitePrefix Result has 223961 conditions, 40561 events. 20495/40561 cut-off events. For 1003912/1003958 co-relation queries the response was YES. Maximal size of possible extension queue 1136. Compared 388103 event pairs, 4805 based on Foata normal form. 5/36468 useless extension candidates. Maximal degree in co-relation 223645. Up to 18922 conditions per place. [2022-01-19 13:37:01,931 INFO L132 encePairwiseOnDemand]: 216/239 looper letters, 1495 selfloop transitions, 987 changer transitions 22/2643 dead transitions. [2022-01-19 13:37:01,931 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1056 places, 2643 transitions, 47065 flow [2022-01-19 13:37:01,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2022-01-19 13:37:01,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2022-01-19 13:37:01,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 7593 transitions. [2022-01-19 13:37:01,935 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7220426017497147 [2022-01-19 13:37:01,935 INFO L72 ComplementDD]: Start complementDD. Operand 44 states and 7593 transitions. [2022-01-19 13:37:01,935 INFO L73 IsDeterministic]: Start isDeterministic. Operand 44 states and 7593 transitions. [2022-01-19 13:37:01,936 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:37:01,936 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 44 states and 7593 transitions. [2022-01-19 13:37:01,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 45 states, 44 states have (on average 172.5681818181818) internal successors, (7593), 44 states have internal predecessors, (7593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:01,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 45 states, 45 states have (on average 239.0) internal successors, (10755), 45 states have internal predecessors, (10755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:01,947 INFO L81 ComplementDD]: Finished complementDD. Result has 45 states, 45 states have (on average 239.0) internal successors, (10755), 45 states have internal predecessors, (10755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:01,947 INFO L186 Difference]: Start difference. First operand has 1017 places, 2374 transitions, 39144 flow. Second operand 44 states and 7593 transitions. [2022-01-19 13:37:01,947 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1056 places, 2643 transitions, 47065 flow [2022-01-19 13:37:13,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1042 places, 2643 transitions, 45567 flow, removed 340 selfloop flow, removed 14 redundant places. [2022-01-19 13:37:13,899 INFO L242 Difference]: Finished difference. Result has 1051 places, 2405 transitions, 40694 flow [2022-01-19 13:37:13,901 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=37662, PETRI_DIFFERENCE_MINUEND_PLACES=999, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2374, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=960, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=44, PETRI_FLOW=40694, PETRI_PLACES=1051, PETRI_TRANSITIONS=2405} [2022-01-19 13:37:13,901 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 842 predicate places. [2022-01-19 13:37:13,902 INFO L470 AbstractCegarLoop]: Abstraction has has 1051 places, 2405 transitions, 40694 flow [2022-01-19 13:37:13,902 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:13,902 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:37:13,902 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:37:13,902 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 13:37:13,902 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:37:13,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:37:13,903 INFO L85 PathProgramCache]: Analyzing trace with hash -1916973270, now seen corresponding path program 21 times [2022-01-19 13:37:13,903 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:37:13,903 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153914514] [2022-01-19 13:37:13,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:37:13,903 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:37:13,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:37:14,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:37:14,504 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:37:14,504 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153914514] [2022-01-19 13:37:14,504 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153914514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:37:14,504 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:37:14,504 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2022-01-19 13:37:14,504 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341847891] [2022-01-19 13:37:14,504 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:37:14,504 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-01-19 13:37:14,504 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:37:14,504 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-01-19 13:37:14,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=75, Invalid=627, Unknown=0, NotChecked=0, Total=702 [2022-01-19 13:37:14,506 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 159 out of 239 [2022-01-19 13:37:14,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1051 places, 2405 transitions, 40694 flow. Second operand has 27 states, 27 states have (on average 161.22222222222223) internal successors, (4353), 27 states have internal predecessors, (4353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:14,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:37:14,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 159 of 239 [2022-01-19 13:37:14,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:37:37,578 INFO L129 PetriNetUnfolder]: 24871/48227 cut-off events. [2022-01-19 13:37:37,578 INFO L130 PetriNetUnfolder]: For 1375985/1375989 co-relation queries the response was YES. [2022-01-19 13:37:40,183 INFO L84 FinitePrefix]: Finished finitePrefix Result has 286524 conditions, 48227 events. 24871/48227 cut-off events. For 1375985/1375989 co-relation queries the response was YES. Maximal size of possible extension queue 1312. Compared 464351 event pairs, 5923 based on Foata normal form. 1/43621 useless extension candidates. Maximal degree in co-relation 286199. Up to 19999 conditions per place. [2022-01-19 13:37:40,478 INFO L132 encePairwiseOnDemand]: 213/239 looper letters, 1953 selfloop transitions, 1398 changer transitions 22/3505 dead transitions. [2022-01-19 13:37:40,478 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1116 places, 3505 transitions, 68103 flow [2022-01-19 13:37:40,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-01-19 13:37:40,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2022-01-19 13:37:40,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 11775 transitions. [2022-01-19 13:37:40,483 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7038254632396892 [2022-01-19 13:37:40,483 INFO L72 ComplementDD]: Start complementDD. Operand 70 states and 11775 transitions. [2022-01-19 13:37:40,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 70 states and 11775 transitions. [2022-01-19 13:37:40,484 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:37:40,484 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 70 states and 11775 transitions. [2022-01-19 13:37:40,490 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 71 states, 70 states have (on average 168.21428571428572) internal successors, (11775), 70 states have internal predecessors, (11775), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:40,498 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 71 states, 71 states have (on average 239.0) internal successors, (16969), 71 states have internal predecessors, (16969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:40,499 INFO L81 ComplementDD]: Finished complementDD. Result has 71 states, 71 states have (on average 239.0) internal successors, (16969), 71 states have internal predecessors, (16969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:40,499 INFO L186 Difference]: Start difference. First operand has 1051 places, 2405 transitions, 40694 flow. Second operand 70 states and 11775 transitions. [2022-01-19 13:37:40,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1116 places, 3505 transitions, 68103 flow [2022-01-19 13:37:58,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1090 places, 3505 transitions, 65321 flow, removed 475 selfloop flow, removed 26 redundant places. [2022-01-19 13:37:58,618 INFO L242 Difference]: Finished difference. Result has 1137 places, 3104 transitions, 59311 flow [2022-01-19 13:37:58,620 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=38963, PETRI_DIFFERENCE_MINUEND_PLACES=1021, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=2405, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=765, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1362, PETRI_DIFFERENCE_SUBTRAHEND_STATES=70, PETRI_FLOW=59311, PETRI_PLACES=1137, PETRI_TRANSITIONS=3104} [2022-01-19 13:37:58,620 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 928 predicate places. [2022-01-19 13:37:58,621 INFO L470 AbstractCegarLoop]: Abstraction has has 1137 places, 3104 transitions, 59311 flow [2022-01-19 13:37:58,621 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 161.22222222222223) internal successors, (4353), 27 states have internal predecessors, (4353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:58,621 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:37:58,621 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:37:58,621 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 13:37:58,621 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:37:58,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:37:58,622 INFO L85 PathProgramCache]: Analyzing trace with hash -315809268, now seen corresponding path program 22 times [2022-01-19 13:37:58,622 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:37:58,622 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199497885] [2022-01-19 13:37:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:37:58,622 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:37:58,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:37:59,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:37:59,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:37:59,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199497885] [2022-01-19 13:37:59,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199497885] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:37:59,224 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:37:59,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [30] imperfect sequences [] total 30 [2022-01-19 13:37:59,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1596622785] [2022-01-19 13:37:59,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:37:59,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-01-19 13:37:59,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:37:59,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-01-19 13:37:59,225 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=89, Invalid=781, Unknown=0, NotChecked=0, Total=870 [2022-01-19 13:37:59,227 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 239 [2022-01-19 13:37:59,229 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1137 places, 3104 transitions, 59311 flow. Second operand has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:37:59,229 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:37:59,229 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 239 [2022-01-19 13:37:59,229 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:38:28,891 INFO L129 PetriNetUnfolder]: 27135/52401 cut-off events. [2022-01-19 13:38:28,891 INFO L130 PetriNetUnfolder]: For 1664573/1664573 co-relation queries the response was YES. [2022-01-19 13:38:32,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 336522 conditions, 52401 events. 27135/52401 cut-off events. For 1664573/1664573 co-relation queries the response was YES. Maximal size of possible extension queue 1468. Compared 506098 event pairs, 7064 based on Foata normal form. 1/47551 useless extension candidates. Maximal degree in co-relation 336051. Up to 21438 conditions per place. [2022-01-19 13:38:32,964 INFO L132 encePairwiseOnDemand]: 210/239 looper letters, 2168 selfloop transitions, 1674 changer transitions 22/3987 dead transitions. [2022-01-19 13:38:32,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1213 places, 3987 transitions, 86249 flow [2022-01-19 13:38:32,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-01-19 13:38:32,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2022-01-19 13:38:32,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 13052 transitions. [2022-01-19 13:38:32,969 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6826359832635983 [2022-01-19 13:38:32,969 INFO L72 ComplementDD]: Start complementDD. Operand 80 states and 13052 transitions. [2022-01-19 13:38:32,969 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 13052 transitions. [2022-01-19 13:38:32,970 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:38:32,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 80 states and 13052 transitions. [2022-01-19 13:38:32,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 81 states, 80 states have (on average 163.15) internal successors, (13052), 80 states have internal predecessors, (13052), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:38:32,985 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 81 states, 81 states have (on average 239.0) internal successors, (19359), 81 states have internal predecessors, (19359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:38:32,986 INFO L81 ComplementDD]: Finished complementDD. Result has 81 states, 81 states have (on average 239.0) internal successors, (19359), 81 states have internal predecessors, (19359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:38:32,986 INFO L186 Difference]: Start difference. First operand has 1137 places, 3104 transitions, 59311 flow. Second operand 80 states and 13052 transitions. [2022-01-19 13:38:32,986 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1213 places, 3987 transitions, 86249 flow [2022-01-19 13:38:52,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1206 places, 3987 transitions, 84831 flow, removed 681 selfloop flow, removed 7 redundant places. [2022-01-19 13:38:52,833 INFO L242 Difference]: Finished difference. Result has 1227 places, 3642 transitions, 79200 flow [2022-01-19 13:38:52,835 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=239, PETRI_DIFFERENCE_MINUEND_FLOW=57988, PETRI_DIFFERENCE_MINUEND_PLACES=1127, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=3104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1180, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1857, PETRI_DIFFERENCE_SUBTRAHEND_STATES=80, PETRI_FLOW=79200, PETRI_PLACES=1227, PETRI_TRANSITIONS=3642} [2022-01-19 13:38:52,836 INFO L334 CegarLoopForPetriNet]: 209 programPoint places, 1018 predicate places. [2022-01-19 13:38:52,836 INFO L470 AbstractCegarLoop]: Abstraction has has 1227 places, 3642 transitions, 79200 flow [2022-01-19 13:38:52,836 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 157.1) internal successors, (4713), 30 states have internal predecessors, (4713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:38:52,836 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:38:52,836 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:38:52,837 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 13:38:52,837 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [thread1Err3INUSE_VIOLATION, thread1Err6INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION (and 7 more)] === [2022-01-19 13:38:52,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:38:52,837 INFO L85 PathProgramCache]: Analyzing trace with hash -1212679308, now seen corresponding path program 23 times [2022-01-19 13:38:52,837 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:38:52,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355696065] [2022-01-19 13:38:52,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:38:52,837 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:38:52,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:38:53,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:38:53,241 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:38:53,241 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355696065] [2022-01-19 13:38:53,241 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355696065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:38:53,241 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:38:53,241 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2022-01-19 13:38:53,241 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257228531] [2022-01-19 13:38:53,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:38:53,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 13:38:53,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:38:53,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 13:38:53,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2022-01-19 13:38:53,243 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 163 out of 239 [2022-01-19 13:38:53,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1227 places, 3642 transitions, 79200 flow. Second operand has 24 states, 24 states have (on average 165.375) internal successors, (3969), 24 states have internal predecessors, (3969), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:38:53,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:38:53,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 163 of 239 [2022-01-19 13:38:53,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand