/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/chl-name-comparator-symm.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 13:08:30,682 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 13:08:30,683 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 13:08:30,743 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 13:08:30,744 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 13:08:30,745 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 13:08:30,747 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 13:08:30,751 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 13:08:30,752 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 13:08:30,755 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 13:08:30,756 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 13:08:30,757 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 13:08:30,757 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 13:08:30,759 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 13:08:30,760 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 13:08:30,762 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 13:08:30,762 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 13:08:30,763 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 13:08:30,764 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 13:08:30,768 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 13:08:30,768 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 13:08:30,769 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 13:08:30,770 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 13:08:30,771 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 13:08:30,775 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 13:08:30,775 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 13:08:30,775 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 13:08:30,776 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 13:08:30,777 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 13:08:30,777 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 13:08:30,777 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 13:08:30,778 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 13:08:30,779 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 13:08:30,779 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 13:08:30,780 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 13:08:30,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 13:08:30,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 13:08:30,781 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 13:08:30,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 13:08:30,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 13:08:30,782 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 13:08:30,782 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 13:08:30,805 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 13:08:30,805 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 13:08:30,806 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 13:08:30,806 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 13:08:30,807 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 13:08:30,807 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 13:08:30,807 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 13:08:30,807 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 13:08:30,807 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 13:08:30,807 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 13:08:30,808 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 13:08:30,808 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:08:30,809 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 13:08:30,809 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 13:08:30,809 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 13:08:30,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 13:08:31,005 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 13:08:31,007 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 13:08:31,008 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 13:08:31,009 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 13:08:31,010 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2022-01-19 13:08:31,061 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7292c223c/b5dbcea0e4d5422295a2a26d37f32035/FLAG09be5f8df [2022-01-19 13:08:31,410 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 13:08:31,410 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-name-comparator-symm.wvr.c [2022-01-19 13:08:31,419 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7292c223c/b5dbcea0e4d5422295a2a26d37f32035/FLAG09be5f8df [2022-01-19 13:08:31,427 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7292c223c/b5dbcea0e4d5422295a2a26d37f32035 [2022-01-19 13:08:31,429 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 13:08:31,429 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 13:08:31,430 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 13:08:31,430 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 13:08:31,432 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 13:08:31,433 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,433 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708dfacf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31, skipping insertion in model container [2022-01-19 13:08:31,433 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,437 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 13:08:31,448 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 13:08:31,579 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/chl-name-comparator-symm.wvr.c[3856,3869] [2022-01-19 13:08:31,584 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:08:31,594 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 13:08:31,613 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/chl-name-comparator-symm.wvr.c[3856,3869] [2022-01-19 13:08:31,616 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 13:08:31,627 INFO L208 MainTranslator]: Completed translation [2022-01-19 13:08:31,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31 WrapperNode [2022-01-19 13:08:31,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 13:08:31,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 13:08:31,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 13:08:31,628 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 13:08:31,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,661 INFO L137 Inliner]: procedures = 25, calls = 34, calls flagged for inlining = 14, calls inlined = 16, statements flattened = 278 [2022-01-19 13:08:31,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 13:08:31,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 13:08:31,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 13:08:31,662 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 13:08:31,669 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,672 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,672 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,679 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,684 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,687 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 13:08:31,688 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 13:08:31,688 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 13:08:31,688 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 13:08:31,689 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (1/1) ... [2022-01-19 13:08:31,693 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 13:08:31,702 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:08:31,711 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 13:08:31,731 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 13:08:31,751 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 13:08:31,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 13:08:31,752 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 13:08:31,752 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 13:08:31,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 13:08:31,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 13:08:31,754 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 13:08:31,819 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 13:08:31,820 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 13:08:32,152 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 13:08:32,161 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 13:08:32,161 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-19 13:08:32,163 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:08:32 BoogieIcfgContainer [2022-01-19 13:08:32,163 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 13:08:32,164 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 13:08:32,164 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 13:08:32,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 13:08:32,172 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 01:08:31" (1/3) ... [2022-01-19 13:08:32,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6931c12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:08:32, skipping insertion in model container [2022-01-19 13:08:32,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:08:31" (2/3) ... [2022-01-19 13:08:32,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6931c12d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:08:32, skipping insertion in model container [2022-01-19 13:08:32,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:08:32" (3/3) ... [2022-01-19 13:08:32,174 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-name-comparator-symm.wvr.c [2022-01-19 13:08:32,177 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 13:08:32,177 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 13:08:32,178 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 13:08:32,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,243 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,244 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,245 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,246 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,247 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,248 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,249 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,250 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,251 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,252 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,253 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,254 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,255 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,256 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,256 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,256 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,256 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,256 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,256 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,257 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,258 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,259 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,260 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,261 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,262 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,263 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,264 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,265 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,266 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,267 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,268 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,269 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,270 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,271 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,272 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,273 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,274 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,275 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,276 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,277 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,278 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,279 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,280 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,281 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,282 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,283 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,284 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,285 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,286 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,287 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,288 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,289 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,290 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,293 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,294 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,295 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,297 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ret21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite22#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,298 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,299 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,299 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,299 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,299 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,299 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,299 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,299 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 13:08:32,302 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-19 13:08:32,340 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 13:08:32,345 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 13:08:32,345 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 13:08:32,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 325 places, 353 transitions, 722 flow [2022-01-19 13:08:32,483 INFO L129 PetriNetUnfolder]: 35/351 cut-off events. [2022-01-19 13:08:32,484 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 13:08:32,501 INFO L84 FinitePrefix]: Finished finitePrefix Result has 360 conditions, 351 events. 35/351 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 737 event pairs, 0 based on Foata normal form. 0/315 useless extension candidates. Maximal degree in co-relation 211. Up to 2 conditions per place. [2022-01-19 13:08:32,501 INFO L82 GeneralOperation]: Start removeDead. Operand has 325 places, 353 transitions, 722 flow [2022-01-19 13:08:32,511 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 314 places, 342 transitions, 696 flow [2022-01-19 13:08:32,563 INFO L129 PetriNetUnfolder]: 35/341 cut-off events. [2022-01-19 13:08:32,563 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 13:08:32,564 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:32,564 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] [2022-01-19 13:08:32,565 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:32,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:32,572 INFO L85 PathProgramCache]: Analyzing trace with hash -1977256279, now seen corresponding path program 1 times [2022-01-19 13:08:32,579 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:32,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178806281] [2022-01-19 13:08:32,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:32,580 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:32,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:32,841 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 13:08:32,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:32,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178806281] [2022-01-19 13:08:32,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178806281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:32,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:32,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 13:08:32,843 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065063522] [2022-01-19 13:08:32,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:32,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 13:08:32,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:32,868 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 13:08:32,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 13:08:32,873 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 334 out of 353 [2022-01-19 13:08:32,878 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 314 places, 342 transitions, 696 flow. Second operand has 2 states, 2 states have (on average 337.0) internal successors, (674), 2 states have internal predecessors, (674), 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 13:08:32,878 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:32,878 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 334 of 353 [2022-01-19 13:08:32,879 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:32,931 INFO L129 PetriNetUnfolder]: 21/328 cut-off events. [2022-01-19 13:08:32,932 INFO L130 PetriNetUnfolder]: For 8/9 co-relation queries the response was YES. [2022-01-19 13:08:32,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 342 conditions, 328 events. 21/328 cut-off events. For 8/9 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 709 event pairs, 0 based on Foata normal form. 17/313 useless extension candidates. Maximal degree in co-relation 202. Up to 5 conditions per place. [2022-01-19 13:08:32,936 INFO L132 encePairwiseOnDemand]: 339/353 looper letters, 4 selfloop transitions, 0 changer transitions 3/328 dead transitions. [2022-01-19 13:08:32,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 328 transitions, 676 flow [2022-01-19 13:08:32,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 13:08:32,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 13:08:32,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 686 transitions. [2022-01-19 13:08:32,950 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9716713881019831 [2022-01-19 13:08:32,950 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 686 transitions. [2022-01-19 13:08:32,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 686 transitions. [2022-01-19 13:08:32,954 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:32,955 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 686 transitions. [2022-01-19 13:08:32,959 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 343.0) internal successors, (686), 2 states have internal predecessors, (686), 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 13:08:32,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 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 13:08:32,969 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 353.0) internal successors, (1059), 3 states have internal predecessors, (1059), 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 13:08:32,971 INFO L186 Difference]: Start difference. First operand has 314 places, 342 transitions, 696 flow. Second operand 2 states and 686 transitions. [2022-01-19 13:08:32,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 328 transitions, 676 flow [2022-01-19 13:08:32,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 311 places, 328 transitions, 668 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 13:08:32,984 INFO L242 Difference]: Finished difference. Result has 311 places, 325 transitions, 654 flow [2022-01-19 13:08:32,986 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=660, PETRI_DIFFERENCE_MINUEND_PLACES=310, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=328, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=654, PETRI_PLACES=311, PETRI_TRANSITIONS=325} [2022-01-19 13:08:32,989 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, -3 predicate places. [2022-01-19 13:08:32,989 INFO L470 AbstractCegarLoop]: Abstraction has has 311 places, 325 transitions, 654 flow [2022-01-19 13:08:32,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 337.0) internal successors, (674), 2 states have internal predecessors, (674), 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 13:08:32,990 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:32,990 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] [2022-01-19 13:08:32,991 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 13:08:32,991 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:32,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:32,991 INFO L85 PathProgramCache]: Analyzing trace with hash 1672738487, now seen corresponding path program 1 times [2022-01-19 13:08:32,991 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:32,991 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077019158] [2022-01-19 13:08:32,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:32,992 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:33,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:33,130 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 13:08:33,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:33,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077019158] [2022-01-19 13:08:33,130 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077019158] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:33,130 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:33,130 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:08:33,131 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88886861] [2022-01-19 13:08:33,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:33,132 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:08:33,132 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:33,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:08:33,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:08:33,134 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 353 [2022-01-19 13:08:33,135 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 325 transitions, 654 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 13:08:33,135 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:33,135 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 353 [2022-01-19 13:08:33,135 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:33,550 INFO L129 PetriNetUnfolder]: 642/3582 cut-off events. [2022-01-19 13:08:33,551 INFO L130 PetriNetUnfolder]: For 40/40 co-relation queries the response was YES. [2022-01-19 13:08:33,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4430 conditions, 3582 events. 642/3582 cut-off events. For 40/40 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 33579 event pairs, 264 based on Foata normal form. 0/3053 useless extension candidates. Maximal degree in co-relation 4427. Up to 505 conditions per place. [2022-01-19 13:08:33,573 INFO L132 encePairwiseOnDemand]: 345/353 looper letters, 55 selfloop transitions, 4 changer transitions 0/350 dead transitions. [2022-01-19 13:08:33,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 350 transitions, 825 flow [2022-01-19 13:08:33,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:08:33,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:08:33,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 975 transitions. [2022-01-19 13:08:33,579 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9206798866855525 [2022-01-19 13:08:33,579 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 975 transitions. [2022-01-19 13:08:33,579 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 975 transitions. [2022-01-19 13:08:33,579 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:33,580 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 975 transitions. [2022-01-19 13:08:33,581 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 325.0) internal successors, (975), 3 states have internal predecessors, (975), 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 13:08:33,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:33,584 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:33,584 INFO L186 Difference]: Start difference. First operand has 311 places, 325 transitions, 654 flow. Second operand 3 states and 975 transitions. [2022-01-19 13:08:33,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 350 transitions, 825 flow [2022-01-19 13:08:33,585 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 310 places, 350 transitions, 825 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 13:08:33,590 INFO L242 Difference]: Finished difference. Result has 312 places, 329 transitions, 694 flow [2022-01-19 13:08:33,590 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=654, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=325, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=321, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=694, PETRI_PLACES=312, PETRI_TRANSITIONS=329} [2022-01-19 13:08:33,591 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, -2 predicate places. [2022-01-19 13:08:33,591 INFO L470 AbstractCegarLoop]: Abstraction has has 312 places, 329 transitions, 694 flow [2022-01-19 13:08:33,592 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 13:08:33,592 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:33,592 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] [2022-01-19 13:08:33,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 13:08:33,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:33,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:33,593 INFO L85 PathProgramCache]: Analyzing trace with hash 1890052835, now seen corresponding path program 1 times [2022-01-19 13:08:33,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:33,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415800022] [2022-01-19 13:08:33,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:33,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:33,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:33,663 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 13:08:33,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:33,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415800022] [2022-01-19 13:08:33,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415800022] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:33,664 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:33,664 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:08:33,664 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044429158] [2022-01-19 13:08:33,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:33,665 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:08:33,665 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:33,666 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:08:33,666 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:08:33,667 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 304 out of 353 [2022-01-19 13:08:33,668 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 312 places, 329 transitions, 694 flow. Second operand has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 13:08:33,668 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:33,668 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 304 of 353 [2022-01-19 13:08:33,668 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:33,993 INFO L129 PetriNetUnfolder]: 475/3127 cut-off events. [2022-01-19 13:08:33,994 INFO L130 PetriNetUnfolder]: For 259/259 co-relation queries the response was YES. [2022-01-19 13:08:34,002 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3889 conditions, 3127 events. 475/3127 cut-off events. For 259/259 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 29491 event pairs, 253 based on Foata normal form. 49/2760 useless extension candidates. Maximal degree in co-relation 3884. Up to 317 conditions per place. [2022-01-19 13:08:34,009 INFO L132 encePairwiseOnDemand]: 347/353 looper letters, 57 selfloop transitions, 2 changer transitions 0/350 dead transitions. [2022-01-19 13:08:34,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 314 places, 350 transitions, 853 flow [2022-01-19 13:08:34,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:08:34,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:08:34,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 973 transitions. [2022-01-19 13:08:34,012 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9187913125590179 [2022-01-19 13:08:34,012 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 973 transitions. [2022-01-19 13:08:34,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 973 transitions. [2022-01-19 13:08:34,012 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:34,012 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 973 transitions. [2022-01-19 13:08:34,014 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 324.3333333333333) internal successors, (973), 3 states have internal predecessors, (973), 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 13:08:34,015 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:34,016 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:34,016 INFO L186 Difference]: Start difference. First operand has 312 places, 329 transitions, 694 flow. Second operand 3 states and 973 transitions. [2022-01-19 13:08:34,016 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 314 places, 350 transitions, 853 flow [2022-01-19 13:08:34,018 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 350 transitions, 851 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 13:08:34,021 INFO L242 Difference]: Finished difference. Result has 315 places, 329 transitions, 704 flow [2022-01-19 13:08:34,021 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=680, PETRI_DIFFERENCE_MINUEND_PLACES=311, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=327, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=325, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=704, PETRI_PLACES=315, PETRI_TRANSITIONS=329} [2022-01-19 13:08:34,022 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 1 predicate places. [2022-01-19 13:08:34,022 INFO L470 AbstractCegarLoop]: Abstraction has has 315 places, 329 transitions, 704 flow [2022-01-19 13:08:34,023 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 308.0) internal successors, (924), 3 states have internal predecessors, (924), 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 13:08:34,023 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:34,023 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] [2022-01-19 13:08:34,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 13:08:34,023 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:34,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:34,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1681652397, now seen corresponding path program 1 times [2022-01-19 13:08:34,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:34,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1480152925] [2022-01-19 13:08:34,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:34,030 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:34,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:34,096 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 13:08:34,096 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:34,096 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1480152925] [2022-01-19 13:08:34,096 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1480152925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:34,096 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:34,096 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 13:08:34,097 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1972974254] [2022-01-19 13:08:34,097 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:34,097 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 13:08:34,097 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:34,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 13:08:34,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 13:08:34,102 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 353 [2022-01-19 13:08:34,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 329 transitions, 704 flow. Second operand has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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 13:08:34,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:34,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 353 [2022-01-19 13:08:34,104 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:34,299 INFO L129 PetriNetUnfolder]: 165/1793 cut-off events. [2022-01-19 13:08:34,300 INFO L130 PetriNetUnfolder]: For 29/52 co-relation queries the response was YES. [2022-01-19 13:08:34,306 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2042 conditions, 1793 events. 165/1793 cut-off events. For 29/52 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 13495 event pairs, 21 based on Foata normal form. 1/1607 useless extension candidates. Maximal degree in co-relation 2036. Up to 74 conditions per place. [2022-01-19 13:08:34,310 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 27 selfloop transitions, 11 changer transitions 0/344 dead transitions. [2022-01-19 13:08:34,310 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 318 places, 344 transitions, 814 flow [2022-01-19 13:08:34,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-19 13:08:34,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-01-19 13:08:34,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1299 transitions. [2022-01-19 13:08:34,312 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.919971671388102 [2022-01-19 13:08:34,312 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1299 transitions. [2022-01-19 13:08:34,312 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1299 transitions. [2022-01-19 13:08:34,313 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:34,313 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1299 transitions. [2022-01-19 13:08:34,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.75) internal successors, (1299), 4 states have internal predecessors, (1299), 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 13:08:34,317 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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 13:08:34,317 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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 13:08:34,317 INFO L186 Difference]: Start difference. First operand has 315 places, 329 transitions, 704 flow. Second operand 4 states and 1299 transitions. [2022-01-19 13:08:34,317 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 318 places, 344 transitions, 814 flow [2022-01-19 13:08:34,319 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 317 places, 344 transitions, 812 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 13:08:34,322 INFO L242 Difference]: Finished difference. Result has 320 places, 335 transitions, 772 flow [2022-01-19 13:08:34,322 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=702, PETRI_DIFFERENCE_MINUEND_PLACES=314, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=772, PETRI_PLACES=320, PETRI_TRANSITIONS=335} [2022-01-19 13:08:34,323 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 6 predicate places. [2022-01-19 13:08:34,323 INFO L470 AbstractCegarLoop]: Abstraction has has 320 places, 335 transitions, 772 flow [2022-01-19 13:08:34,324 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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 13:08:34,324 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:34,324 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] [2022-01-19 13:08:34,324 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 13:08:34,324 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:34,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:34,325 INFO L85 PathProgramCache]: Analyzing trace with hash -1341510675, now seen corresponding path program 1 times [2022-01-19 13:08:34,326 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:34,326 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634861323] [2022-01-19 13:08:34,326 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:34,326 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:34,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:34,395 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 13:08:34,395 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:34,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634861323] [2022-01-19 13:08:34,396 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634861323] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:34,396 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:34,396 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:08:34,396 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147086446] [2022-01-19 13:08:34,396 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:34,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:08:34,396 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:34,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:08:34,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:08:34,398 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 353 [2022-01-19 13:08:34,399 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 320 places, 335 transitions, 772 flow. Second operand has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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 13:08:34,399 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:34,399 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 353 [2022-01-19 13:08:34,399 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:34,590 INFO L129 PetriNetUnfolder]: 132/1424 cut-off events. [2022-01-19 13:08:34,590 INFO L130 PetriNetUnfolder]: For 42/53 co-relation queries the response was YES. [2022-01-19 13:08:34,595 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1730 conditions, 1424 events. 132/1424 cut-off events. For 42/53 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 9520 event pairs, 31 based on Foata normal form. 2/1293 useless extension candidates. Maximal degree in co-relation 1722. Up to 113 conditions per place. [2022-01-19 13:08:34,598 INFO L132 encePairwiseOnDemand]: 342/353 looper letters, 30 selfloop transitions, 9 changer transitions 0/352 dead transitions. [2022-01-19 13:08:34,598 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 352 transitions, 890 flow [2022-01-19 13:08:34,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 13:08:34,599 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 13:08:34,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1937 transitions. [2022-01-19 13:08:34,601 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9145420207743153 [2022-01-19 13:08:34,601 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1937 transitions. [2022-01-19 13:08:34,601 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1937 transitions. [2022-01-19 13:08:34,602 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:34,602 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1937 transitions. [2022-01-19 13:08:34,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.8333333333333) internal successors, (1937), 6 states have internal predecessors, (1937), 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 13:08:34,607 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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 13:08:34,608 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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 13:08:34,608 INFO L186 Difference]: Start difference. First operand has 320 places, 335 transitions, 772 flow. Second operand 6 states and 1937 transitions. [2022-01-19 13:08:34,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 352 transitions, 890 flow [2022-01-19 13:08:34,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 352 transitions, 890 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 13:08:34,615 INFO L242 Difference]: Finished difference. Result has 329 places, 341 transitions, 831 flow [2022-01-19 13:08:34,615 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=772, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=335, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=326, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=831, PETRI_PLACES=329, PETRI_TRANSITIONS=341} [2022-01-19 13:08:34,616 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 15 predicate places. [2022-01-19 13:08:34,617 INFO L470 AbstractCegarLoop]: Abstraction has has 329 places, 341 transitions, 831 flow [2022-01-19 13:08:34,617 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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 13:08:34,617 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:34,617 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] [2022-01-19 13:08:34,618 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 13:08:34,618 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:34,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:34,618 INFO L85 PathProgramCache]: Analyzing trace with hash -1215126355, now seen corresponding path program 1 times [2022-01-19 13:08:34,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:34,619 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2003931862] [2022-01-19 13:08:34,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:34,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:34,678 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 13:08:34,679 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:34,679 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2003931862] [2022-01-19 13:08:34,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2003931862] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:34,679 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:34,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:08:34,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515183972] [2022-01-19 13:08:34,679 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:34,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:08:34,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:34,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:08:34,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:08:34,682 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 316 out of 353 [2022-01-19 13:08:34,695 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 341 transitions, 831 flow. Second operand has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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 13:08:34,695 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:34,695 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 316 of 353 [2022-01-19 13:08:34,696 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:34,941 INFO L129 PetriNetUnfolder]: 216/2386 cut-off events. [2022-01-19 13:08:34,941 INFO L130 PetriNetUnfolder]: For 137/148 co-relation queries the response was YES. [2022-01-19 13:08:34,952 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2902 conditions, 2386 events. 216/2386 cut-off events. For 137/148 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 18509 event pairs, 47 based on Foata normal form. 0/2128 useless extension candidates. Maximal degree in co-relation 2889. Up to 176 conditions per place. [2022-01-19 13:08:34,960 INFO L132 encePairwiseOnDemand]: 342/353 looper letters, 29 selfloop transitions, 9 changer transitions 0/357 dead transitions. [2022-01-19 13:08:34,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 357 transitions, 944 flow [2022-01-19 13:08:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 13:08:34,961 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 13:08:34,962 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1936 transitions. [2022-01-19 13:08:34,963 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9140698772426817 [2022-01-19 13:08:34,963 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1936 transitions. [2022-01-19 13:08:34,963 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1936 transitions. [2022-01-19 13:08:34,964 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:34,964 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1936 transitions. [2022-01-19 13:08:34,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 322.6666666666667) internal successors, (1936), 6 states have internal predecessors, (1936), 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 13:08:34,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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 13:08:34,969 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 353.0) internal successors, (2471), 7 states have internal predecessors, (2471), 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 13:08:34,969 INFO L186 Difference]: Start difference. First operand has 329 places, 341 transitions, 831 flow. Second operand 6 states and 1936 transitions. [2022-01-19 13:08:34,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 357 transitions, 944 flow [2022-01-19 13:08:34,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 333 places, 357 transitions, 939 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 13:08:34,976 INFO L242 Difference]: Finished difference. Result has 337 places, 347 transitions, 885 flow [2022-01-19 13:08:34,977 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=826, PETRI_DIFFERENCE_MINUEND_PLACES=328, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=885, PETRI_PLACES=337, PETRI_TRANSITIONS=347} [2022-01-19 13:08:34,978 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 23 predicate places. [2022-01-19 13:08:34,978 INFO L470 AbstractCegarLoop]: Abstraction has has 337 places, 347 transitions, 885 flow [2022-01-19 13:08:34,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 318.6) internal successors, (1593), 5 states have internal predecessors, (1593), 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 13:08:34,979 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:34,979 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] [2022-01-19 13:08:34,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 13:08:34,979 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:34,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:34,980 INFO L85 PathProgramCache]: Analyzing trace with hash 1786217094, now seen corresponding path program 1 times [2022-01-19 13:08:34,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:34,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444089821] [2022-01-19 13:08:34,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:34,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:34,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:35,032 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 13:08:35,032 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:35,032 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444089821] [2022-01-19 13:08:35,032 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444089821] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:35,032 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:35,032 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:08:35,032 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232306277] [2022-01-19 13:08:35,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:35,035 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:08:35,036 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:35,036 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:08:35,036 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:08:35,037 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 322 out of 353 [2022-01-19 13:08:35,038 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 337 places, 347 transitions, 885 flow. Second operand has 5 states, 5 states have (on average 324.4) internal successors, (1622), 5 states have internal predecessors, (1622), 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 13:08:35,038 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:35,038 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 322 of 353 [2022-01-19 13:08:35,038 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:35,244 INFO L129 PetriNetUnfolder]: 110/1717 cut-off events. [2022-01-19 13:08:35,244 INFO L130 PetriNetUnfolder]: For 75/87 co-relation queries the response was YES. [2022-01-19 13:08:35,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2075 conditions, 1717 events. 110/1717 cut-off events. For 75/87 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 11580 event pairs, 4 based on Foata normal form. 0/1581 useless extension candidates. Maximal degree in co-relation 2058. Up to 53 conditions per place. [2022-01-19 13:08:35,254 INFO L132 encePairwiseOnDemand]: 348/353 looper letters, 16 selfloop transitions, 4 changer transitions 0/351 dead transitions. [2022-01-19 13:08:35,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 351 transitions, 933 flow [2022-01-19 13:08:35,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 13:08:35,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 13:08:35,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1631 transitions. [2022-01-19 13:08:35,257 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9240793201133144 [2022-01-19 13:08:35,257 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1631 transitions. [2022-01-19 13:08:35,257 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1631 transitions. [2022-01-19 13:08:35,258 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:35,258 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1631 transitions. [2022-01-19 13:08:35,260 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 326.2) internal successors, (1631), 5 states have internal predecessors, (1631), 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 13:08:35,262 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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 13:08:35,263 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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 13:08:35,264 INFO L186 Difference]: Start difference. First operand has 337 places, 347 transitions, 885 flow. Second operand 5 states and 1631 transitions. [2022-01-19 13:08:35,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 351 transitions, 933 flow [2022-01-19 13:08:35,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 351 transitions, 928 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 13:08:35,269 INFO L242 Difference]: Finished difference. Result has 341 places, 348 transitions, 896 flow [2022-01-19 13:08:35,270 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=880, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=347, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=896, PETRI_PLACES=341, PETRI_TRANSITIONS=348} [2022-01-19 13:08:35,270 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 27 predicate places. [2022-01-19 13:08:35,270 INFO L470 AbstractCegarLoop]: Abstraction has has 341 places, 348 transitions, 896 flow [2022-01-19 13:08:35,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 324.4) internal successors, (1622), 5 states have internal predecessors, (1622), 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 13:08:35,271 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:35,271 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] [2022-01-19 13:08:35,271 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 13:08:35,271 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:35,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:35,271 INFO L85 PathProgramCache]: Analyzing trace with hash 454408965, now seen corresponding path program 1 times [2022-01-19 13:08:35,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:35,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455013950] [2022-01-19 13:08:35,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:35,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:35,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:08:35,335 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:35,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455013950] [2022-01-19 13:08:35,335 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455013950] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 13:08:35,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110086026] [2022-01-19 13:08:35,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:35,335 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 13:08:35,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:08:35,337 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 13:08:35,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 13:08:35,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:35,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 348 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-19 13:08:35,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 13:08:35,796 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:08:35,797 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 13:08:36,022 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:08:36,022 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110086026] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 13:08:36,022 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 13:08:36,023 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-01-19 13:08:36,023 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034181604] [2022-01-19 13:08:36,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 13:08:36,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:08:36,023 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:36,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:08:36,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=132, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:08:36,026 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 321 out of 353 [2022-01-19 13:08:36,029 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 348 transitions, 896 flow. Second operand has 14 states, 14 states have (on average 323.64285714285717) internal successors, (4531), 14 states have internal predecessors, (4531), 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 13:08:36,029 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:36,029 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 321 of 353 [2022-01-19 13:08:36,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:36,279 INFO L129 PetriNetUnfolder]: 110/1726 cut-off events. [2022-01-19 13:08:36,279 INFO L130 PetriNetUnfolder]: For 76/88 co-relation queries the response was YES. [2022-01-19 13:08:36,290 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2096 conditions, 1726 events. 110/1726 cut-off events. For 76/88 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 11560 event pairs, 4 based on Foata normal form. 2/1593 useless extension candidates. Maximal degree in co-relation 2078. Up to 53 conditions per place. [2022-01-19 13:08:36,294 INFO L132 encePairwiseOnDemand]: 345/353 looper letters, 17 selfloop transitions, 11 changer transitions 0/358 dead transitions. [2022-01-19 13:08:36,294 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 351 places, 358 transitions, 974 flow [2022-01-19 13:08:36,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 13:08:36,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 13:08:36,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3561 transitions. [2022-01-19 13:08:36,300 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9170744269894412 [2022-01-19 13:08:36,300 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3561 transitions. [2022-01-19 13:08:36,300 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3561 transitions. [2022-01-19 13:08:36,301 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:36,301 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3561 transitions. [2022-01-19 13:08:36,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 323.72727272727275) internal successors, (3561), 11 states have internal predecessors, (3561), 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 13:08:36,310 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 353.0) internal successors, (4236), 12 states have internal predecessors, (4236), 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 13:08:36,310 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 353.0) internal successors, (4236), 12 states have internal predecessors, (4236), 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 13:08:36,311 INFO L186 Difference]: Start difference. First operand has 341 places, 348 transitions, 896 flow. Second operand 11 states and 3561 transitions. [2022-01-19 13:08:36,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 351 places, 358 transitions, 974 flow [2022-01-19 13:08:36,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 348 places, 358 transitions, 968 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 13:08:36,317 INFO L242 Difference]: Finished difference. Result has 351 places, 354 transitions, 945 flow [2022-01-19 13:08:36,317 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=890, PETRI_DIFFERENCE_MINUEND_PLACES=338, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=348, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=340, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=945, PETRI_PLACES=351, PETRI_TRANSITIONS=354} [2022-01-19 13:08:36,318 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 37 predicate places. [2022-01-19 13:08:36,318 INFO L470 AbstractCegarLoop]: Abstraction has has 351 places, 354 transitions, 945 flow [2022-01-19 13:08:36,320 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 323.64285714285717) internal successors, (4531), 14 states have internal predecessors, (4531), 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 13:08:36,320 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:36,320 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:36,339 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 13:08:36,535 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 13:08:36,536 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:36,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:36,536 INFO L85 PathProgramCache]: Analyzing trace with hash 266249057, now seen corresponding path program 2 times [2022-01-19 13:08:36,536 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:36,536 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70963271] [2022-01-19 13:08:36,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:36,536 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:36,606 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:36,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:36,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70963271] [2022-01-19 13:08:36,606 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70963271] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:36,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:36,607 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 13:08:36,607 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155924951] [2022-01-19 13:08:36,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:36,607 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 13:08:36,607 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:36,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 13:08:36,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-19 13:08:36,609 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 306 out of 353 [2022-01-19 13:08:36,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 354 transitions, 945 flow. Second operand has 8 states, 8 states have (on average 309.125) internal successors, (2473), 8 states have internal predecessors, (2473), 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 13:08:36,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:36,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 306 of 353 [2022-01-19 13:08:36,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:36,866 INFO L129 PetriNetUnfolder]: 111/1830 cut-off events. [2022-01-19 13:08:36,866 INFO L130 PetriNetUnfolder]: For 78/90 co-relation queries the response was YES. [2022-01-19 13:08:36,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2404 conditions, 1830 events. 111/1830 cut-off events. For 78/90 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 12266 event pairs, 4 based on Foata normal form. 8/1703 useless extension candidates. Maximal degree in co-relation 2383. Up to 128 conditions per place. [2022-01-19 13:08:36,881 INFO L132 encePairwiseOnDemand]: 344/353 looper letters, 35 selfloop transitions, 4 changer transitions 5/369 dead transitions. [2022-01-19 13:08:36,881 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 369 transitions, 1063 flow [2022-01-19 13:08:36,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 13:08:36,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 13:08:36,885 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2493 transitions. [2022-01-19 13:08:36,886 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8827903682719547 [2022-01-19 13:08:36,886 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2493 transitions. [2022-01-19 13:08:36,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2493 transitions. [2022-01-19 13:08:36,887 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:36,887 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2493 transitions. [2022-01-19 13:08:36,891 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 311.625) internal successors, (2493), 8 states have internal predecessors, (2493), 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 13:08:36,896 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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 13:08:36,896 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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 13:08:36,896 INFO L186 Difference]: Start difference. First operand has 351 places, 354 transitions, 945 flow. Second operand 8 states and 2493 transitions. [2022-01-19 13:08:36,896 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 369 transitions, 1063 flow [2022-01-19 13:08:36,899 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 369 transitions, 1054 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 13:08:36,903 INFO L242 Difference]: Finished difference. Result has 361 places, 357 transitions, 972 flow [2022-01-19 13:08:36,904 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=936, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=350, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=972, PETRI_PLACES=361, PETRI_TRANSITIONS=357} [2022-01-19 13:08:36,904 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 47 predicate places. [2022-01-19 13:08:36,904 INFO L470 AbstractCegarLoop]: Abstraction has has 361 places, 357 transitions, 972 flow [2022-01-19 13:08:36,905 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 309.125) internal successors, (2473), 8 states have internal predecessors, (2473), 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 13:08:36,905 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:36,905 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:36,906 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 13:08:36,906 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:36,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:36,906 INFO L85 PathProgramCache]: Analyzing trace with hash -1901665691, now seen corresponding path program 1 times [2022-01-19 13:08:36,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:36,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301526281] [2022-01-19 13:08:36,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:36,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:36,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:36,966 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:36,966 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:36,967 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301526281] [2022-01-19 13:08:36,967 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301526281] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:36,967 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:36,967 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 13:08:36,967 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920226132] [2022-01-19 13:08:36,967 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:36,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 13:08:36,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:36,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 13:08:36,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 13:08:36,971 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 353 [2022-01-19 13:08:36,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 357 transitions, 972 flow. Second operand has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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 13:08:36,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:36,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 353 [2022-01-19 13:08:36,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:37,352 INFO L129 PetriNetUnfolder]: 293/2938 cut-off events. [2022-01-19 13:08:37,352 INFO L130 PetriNetUnfolder]: For 212/223 co-relation queries the response was YES. [2022-01-19 13:08:37,367 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3962 conditions, 2938 events. 293/2938 cut-off events. For 212/223 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 23947 event pairs, 64 based on Foata normal form. 0/2626 useless extension candidates. Maximal degree in co-relation 3935. Up to 196 conditions per place. [2022-01-19 13:08:37,372 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 26 selfloop transitions, 11 changer transitions 0/371 dead transitions. [2022-01-19 13:08:37,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 360 places, 371 transitions, 1077 flow [2022-01-19 13:08:37,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-19 13:08:37,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-01-19 13:08:37,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1298 transitions. [2022-01-19 13:08:37,375 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9192634560906515 [2022-01-19 13:08:37,375 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1298 transitions. [2022-01-19 13:08:37,375 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1298 transitions. [2022-01-19 13:08:37,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:37,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1298 transitions. [2022-01-19 13:08:37,377 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 324.5) internal successors, (1298), 4 states have internal predecessors, (1298), 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 13:08:37,379 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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 13:08:37,379 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 353.0) internal successors, (1765), 5 states have internal predecessors, (1765), 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 13:08:37,379 INFO L186 Difference]: Start difference. First operand has 361 places, 357 transitions, 972 flow. Second operand 4 states and 1298 transitions. [2022-01-19 13:08:37,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 360 places, 371 transitions, 1077 flow [2022-01-19 13:08:37,383 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 371 transitions, 1067 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-01-19 13:08:37,386 INFO L242 Difference]: Finished difference. Result has 358 places, 363 transitions, 1032 flow [2022-01-19 13:08:37,387 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=962, PETRI_DIFFERENCE_MINUEND_PLACES=352, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=357, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=346, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=1032, PETRI_PLACES=358, PETRI_TRANSITIONS=363} [2022-01-19 13:08:37,387 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 44 predicate places. [2022-01-19 13:08:37,387 INFO L470 AbstractCegarLoop]: Abstraction has has 358 places, 363 transitions, 1032 flow [2022-01-19 13:08:37,387 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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 13:08:37,388 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:37,388 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:37,388 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 13:08:37,388 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:37,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:37,388 INFO L85 PathProgramCache]: Analyzing trace with hash -227916070, now seen corresponding path program 1 times [2022-01-19 13:08:37,388 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:37,388 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867707602] [2022-01-19 13:08:37,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:37,389 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:37,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:37,443 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:37,443 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:37,444 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1867707602] [2022-01-19 13:08:37,444 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1867707602] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:37,444 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:37,444 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 13:08:37,444 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2104074100] [2022-01-19 13:08:37,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:37,445 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-19 13:08:37,445 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:37,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-19 13:08:37,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-19 13:08:37,446 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 315 out of 353 [2022-01-19 13:08:37,447 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 363 transitions, 1032 flow. Second operand has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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 13:08:37,448 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:37,448 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 315 of 353 [2022-01-19 13:08:37,448 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:37,767 INFO L129 PetriNetUnfolder]: 178/2081 cut-off events. [2022-01-19 13:08:37,767 INFO L130 PetriNetUnfolder]: For 169/305 co-relation queries the response was YES. [2022-01-19 13:08:37,784 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2879 conditions, 2081 events. 178/2081 cut-off events. For 169/305 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 14243 event pairs, 37 based on Foata normal form. 10/1960 useless extension candidates. Maximal degree in co-relation 2854. Up to 136 conditions per place. [2022-01-19 13:08:37,789 INFO L132 encePairwiseOnDemand]: 348/353 looper letters, 35 selfloop transitions, 4 changer transitions 0/372 dead transitions. [2022-01-19 13:08:37,789 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 372 transitions, 1135 flow [2022-01-19 13:08:37,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 13:08:37,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 13:08:37,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1611 transitions. [2022-01-19 13:08:37,791 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9127478753541076 [2022-01-19 13:08:37,791 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1611 transitions. [2022-01-19 13:08:37,791 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1611 transitions. [2022-01-19 13:08:37,792 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:37,792 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1611 transitions. [2022-01-19 13:08:37,794 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 322.2) internal successors, (1611), 5 states have internal predecessors, (1611), 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 13:08:37,795 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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 13:08:37,796 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 353.0) internal successors, (2118), 6 states have internal predecessors, (2118), 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 13:08:37,796 INFO L186 Difference]: Start difference. First operand has 358 places, 363 transitions, 1032 flow. Second operand 5 states and 1611 transitions. [2022-01-19 13:08:37,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 372 transitions, 1135 flow [2022-01-19 13:08:37,799 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 362 places, 372 transitions, 1133 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-01-19 13:08:37,802 INFO L242 Difference]: Finished difference. Result has 363 places, 363 transitions, 1044 flow [2022-01-19 13:08:37,803 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1026, PETRI_DIFFERENCE_MINUEND_PLACES=358, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=1044, PETRI_PLACES=363, PETRI_TRANSITIONS=363} [2022-01-19 13:08:37,803 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 49 predicate places. [2022-01-19 13:08:37,803 INFO L470 AbstractCegarLoop]: Abstraction has has 363 places, 363 transitions, 1044 flow [2022-01-19 13:08:37,803 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 318.0) internal successors, (1272), 4 states have internal predecessors, (1272), 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 13:08:37,803 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:37,804 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:37,804 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 13:08:37,804 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:37,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:37,804 INFO L85 PathProgramCache]: Analyzing trace with hash -731169643, now seen corresponding path program 1 times [2022-01-19 13:08:37,804 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:37,804 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676405627] [2022-01-19 13:08:37,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:37,804 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:37,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:37,849 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:37,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:37,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676405627] [2022-01-19 13:08:37,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676405627] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:37,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:37,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 13:08:37,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096072630] [2022-01-19 13:08:37,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:37,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 13:08:37,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:37,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 13:08:37,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 13:08:37,851 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 296 out of 353 [2022-01-19 13:08:37,853 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 363 places, 363 transitions, 1044 flow. Second operand has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 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 13:08:37,853 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:37,853 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 296 of 353 [2022-01-19 13:08:37,853 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:39,030 INFO L129 PetriNetUnfolder]: 1787/9609 cut-off events. [2022-01-19 13:08:39,030 INFO L130 PetriNetUnfolder]: For 3050/3062 co-relation queries the response was YES. [2022-01-19 13:08:39,062 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15608 conditions, 9609 events. 1787/9609 cut-off events. For 3050/3062 co-relation queries the response was YES. Maximal size of possible extension queue 195. Compared 98130 event pairs, 691 based on Foata normal form. 31/8775 useless extension candidates. Maximal degree in co-relation 15581. Up to 1901 conditions per place. [2022-01-19 13:08:39,082 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 184 selfloop transitions, 36 changer transitions 0/527 dead transitions. [2022-01-19 13:08:39,082 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 379 places, 527 transitions, 2115 flow [2022-01-19 13:08:39,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:08:39,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:08:39,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 5234 transitions. [2022-01-19 13:08:39,089 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.872187968671888 [2022-01-19 13:08:39,089 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 5234 transitions. [2022-01-19 13:08:39,089 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 5234 transitions. [2022-01-19 13:08:39,091 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:39,091 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 5234 transitions. [2022-01-19 13:08:39,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 307.88235294117646) internal successors, (5234), 17 states have internal predecessors, (5234), 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 13:08:39,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 353.0) internal successors, (6354), 18 states have internal predecessors, (6354), 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 13:08:39,102 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 353.0) internal successors, (6354), 18 states have internal predecessors, (6354), 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 13:08:39,102 INFO L186 Difference]: Start difference. First operand has 363 places, 363 transitions, 1044 flow. Second operand 17 states and 5234 transitions. [2022-01-19 13:08:39,102 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 379 places, 527 transitions, 2115 flow [2022-01-19 13:08:39,168 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 377 places, 527 transitions, 2093 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-01-19 13:08:39,172 INFO L242 Difference]: Finished difference. Result has 385 places, 391 transitions, 1302 flow [2022-01-19 13:08:39,172 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=362, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=353, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=1302, PETRI_PLACES=385, PETRI_TRANSITIONS=391} [2022-01-19 13:08:39,173 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 71 predicate places. [2022-01-19 13:08:39,173 INFO L470 AbstractCegarLoop]: Abstraction has has 385 places, 391 transitions, 1302 flow [2022-01-19 13:08:39,173 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 299.3333333333333) internal successors, (1796), 6 states have internal predecessors, (1796), 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 13:08:39,173 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:39,173 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:39,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 13:08:39,174 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:39,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:39,174 INFO L85 PathProgramCache]: Analyzing trace with hash -423907830, now seen corresponding path program 1 times [2022-01-19 13:08:39,174 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:39,174 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1218012567] [2022-01-19 13:08:39,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:39,174 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:39,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:39,210 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:39,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:39,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1218012567] [2022-01-19 13:08:39,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1218012567] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:39,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:39,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:08:39,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98820348] [2022-01-19 13:08:39,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:39,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:08:39,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:08:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:08:39,212 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 353 [2022-01-19 13:08:39,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 385 places, 391 transitions, 1302 flow. Second operand has 5 states, 5 states have (on average 316.8) internal successors, (1584), 5 states have internal predecessors, (1584), 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 13:08:39,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:39,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 353 [2022-01-19 13:08:39,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:39,529 INFO L129 PetriNetUnfolder]: 229/2435 cut-off events. [2022-01-19 13:08:39,530 INFO L130 PetriNetUnfolder]: For 693/821 co-relation queries the response was YES. [2022-01-19 13:08:39,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3658 conditions, 2435 events. 229/2435 cut-off events. For 693/821 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 17296 event pairs, 40 based on Foata normal form. 24/2300 useless extension candidates. Maximal degree in co-relation 3625. Up to 164 conditions per place. [2022-01-19 13:08:39,547 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 44 selfloop transitions, 19 changer transitions 0/410 dead transitions. [2022-01-19 13:08:39,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 391 places, 410 transitions, 1485 flow [2022-01-19 13:08:39,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 13:08:39,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 13:08:39,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2239 transitions. [2022-01-19 13:08:39,550 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9061108862808579 [2022-01-19 13:08:39,550 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2239 transitions. [2022-01-19 13:08:39,550 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2239 transitions. [2022-01-19 13:08:39,551 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:39,551 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2239 transitions. [2022-01-19 13:08:39,554 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 319.85714285714283) internal successors, (2239), 7 states have internal predecessors, (2239), 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 13:08:39,556 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:39,557 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:39,557 INFO L186 Difference]: Start difference. First operand has 385 places, 391 transitions, 1302 flow. Second operand 7 states and 2239 transitions. [2022-01-19 13:08:39,557 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 391 places, 410 transitions, 1485 flow [2022-01-19 13:08:39,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 387 places, 410 transitions, 1451 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-01-19 13:08:39,565 INFO L242 Difference]: Finished difference. Result has 390 places, 397 transitions, 1358 flow [2022-01-19 13:08:39,566 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1268, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=373, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1358, PETRI_PLACES=390, PETRI_TRANSITIONS=397} [2022-01-19 13:08:39,566 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 76 predicate places. [2022-01-19 13:08:39,566 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 397 transitions, 1358 flow [2022-01-19 13:08:39,567 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 316.8) internal successors, (1584), 5 states have internal predecessors, (1584), 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 13:08:39,567 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:39,567 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:39,567 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 13:08:39,567 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:39,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:39,567 INFO L85 PathProgramCache]: Analyzing trace with hash -1856360310, now seen corresponding path program 1 times [2022-01-19 13:08:39,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:39,568 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720549115] [2022-01-19 13:08:39,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:39,568 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:39,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:39,619 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-19 13:08:39,619 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:39,619 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720549115] [2022-01-19 13:08:39,619 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720549115] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:39,619 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:39,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 13:08:39,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1855949689] [2022-01-19 13:08:39,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:39,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 13:08:39,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:39,620 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 13:08:39,620 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 13:08:39,622 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 353 [2022-01-19 13:08:39,623 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 397 transitions, 1358 flow. Second operand has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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 13:08:39,623 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:39,623 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 353 [2022-01-19 13:08:39,623 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:40,075 INFO L129 PetriNetUnfolder]: 270/2864 cut-off events. [2022-01-19 13:08:40,075 INFO L130 PetriNetUnfolder]: For 752/879 co-relation queries the response was YES. [2022-01-19 13:08:40,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4438 conditions, 2864 events. 270/2864 cut-off events. For 752/879 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 21838 event pairs, 50 based on Foata normal form. 17/2691 useless extension candidates. Maximal degree in co-relation 4402. Up to 228 conditions per place. [2022-01-19 13:08:40,096 INFO L132 encePairwiseOnDemand]: 337/353 looper letters, 40 selfloop transitions, 17 changer transitions 0/423 dead transitions. [2022-01-19 13:08:40,096 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 397 places, 423 transitions, 1542 flow [2022-01-19 13:08:40,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 13:08:40,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 13:08:40,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2551 transitions. [2022-01-19 13:08:40,100 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9033286118980169 [2022-01-19 13:08:40,100 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2551 transitions. [2022-01-19 13:08:40,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2551 transitions. [2022-01-19 13:08:40,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:40,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2551 transitions. [2022-01-19 13:08:40,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 318.875) internal successors, (2551), 8 states have internal predecessors, (2551), 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 13:08:40,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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 13:08:40,107 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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 13:08:40,107 INFO L186 Difference]: Start difference. First operand has 390 places, 397 transitions, 1358 flow. Second operand 8 states and 2551 transitions. [2022-01-19 13:08:40,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 397 places, 423 transitions, 1542 flow [2022-01-19 13:08:40,113 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 395 places, 423 transitions, 1524 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-01-19 13:08:40,117 INFO L242 Difference]: Finished difference. Result has 399 places, 407 transitions, 1449 flow [2022-01-19 13:08:40,117 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1340, PETRI_DIFFERENCE_MINUEND_PLACES=388, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=397, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1449, PETRI_PLACES=399, PETRI_TRANSITIONS=407} [2022-01-19 13:08:40,117 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 85 predicate places. [2022-01-19 13:08:40,118 INFO L470 AbstractCegarLoop]: Abstraction has has 399 places, 407 transitions, 1449 flow [2022-01-19 13:08:40,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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 13:08:40,118 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:40,118 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:40,118 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 13:08:40,118 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:40,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:40,119 INFO L85 PathProgramCache]: Analyzing trace with hash -38920124, now seen corresponding path program 1 times [2022-01-19 13:08:40,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:40,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405448859] [2022-01-19 13:08:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:40,119 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:40,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:40,146 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:40,146 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:40,146 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405448859] [2022-01-19 13:08:40,146 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1405448859] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:40,146 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:40,147 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:08:40,147 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198737105] [2022-01-19 13:08:40,147 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:40,147 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:08:40,147 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:40,147 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:08:40,147 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:08:40,148 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 353 [2022-01-19 13:08:40,149 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 407 transitions, 1449 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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 13:08:40,149 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:40,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 353 [2022-01-19 13:08:40,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:41,568 INFO L129 PetriNetUnfolder]: 1317/11822 cut-off events. [2022-01-19 13:08:41,569 INFO L130 PetriNetUnfolder]: For 4086/4151 co-relation queries the response was YES. [2022-01-19 13:08:41,678 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18163 conditions, 11822 events. 1317/11822 cut-off events. For 4086/4151 co-relation queries the response was YES. Maximal size of possible extension queue 216. Compared 133267 event pairs, 377 based on Foata normal form. 10/10854 useless extension candidates. Maximal degree in co-relation 18122. Up to 970 conditions per place. [2022-01-19 13:08:41,698 INFO L132 encePairwiseOnDemand]: 349/353 looper letters, 52 selfloop transitions, 3 changer transitions 0/425 dead transitions. [2022-01-19 13:08:41,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 401 places, 425 transitions, 1618 flow [2022-01-19 13:08:41,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:08:41,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:08:41,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 970 transitions. [2022-01-19 13:08:41,700 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9159584513692163 [2022-01-19 13:08:41,700 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 970 transitions. [2022-01-19 13:08:41,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 970 transitions. [2022-01-19 13:08:41,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:41,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 970 transitions. [2022-01-19 13:08:41,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.3333333333333) internal successors, (970), 3 states have internal predecessors, (970), 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 13:08:41,703 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:41,703 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:41,703 INFO L186 Difference]: Start difference. First operand has 399 places, 407 transitions, 1449 flow. Second operand 3 states and 970 transitions. [2022-01-19 13:08:41,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 401 places, 425 transitions, 1618 flow [2022-01-19 13:08:41,730 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 425 transitions, 1605 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-01-19 13:08:41,734 INFO L242 Difference]: Finished difference. Result has 400 places, 409 transitions, 1458 flow [2022-01-19 13:08:41,734 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=396, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=404, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1458, PETRI_PLACES=400, PETRI_TRANSITIONS=409} [2022-01-19 13:08:41,735 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 86 predicate places. [2022-01-19 13:08:41,735 INFO L470 AbstractCegarLoop]: Abstraction has has 400 places, 409 transitions, 1458 flow [2022-01-19 13:08:41,735 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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 13:08:41,735 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:41,735 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:41,735 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 13:08:41,735 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:41,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:41,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1289922524, now seen corresponding path program 1 times [2022-01-19 13:08:41,736 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:41,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944596607] [2022-01-19 13:08:41,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:41,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:41,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:41,784 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:41,784 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:41,784 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944596607] [2022-01-19 13:08:41,786 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944596607] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:41,786 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:41,786 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 13:08:41,786 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1583210340] [2022-01-19 13:08:41,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:41,786 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 13:08:41,787 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:41,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 13:08:41,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 13:08:41,788 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 353 [2022-01-19 13:08:41,789 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 400 places, 409 transitions, 1458 flow. Second operand has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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 13:08:41,789 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:41,789 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 353 [2022-01-19 13:08:41,789 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:42,648 INFO L129 PetriNetUnfolder]: 430/5025 cut-off events. [2022-01-19 13:08:42,648 INFO L130 PetriNetUnfolder]: For 1306/1598 co-relation queries the response was YES. [2022-01-19 13:08:42,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8064 conditions, 5025 events. 430/5025 cut-off events. For 1306/1598 co-relation queries the response was YES. Maximal size of possible extension queue 96. Compared 44356 event pairs, 88 based on Foata normal form. 42/4801 useless extension candidates. Maximal degree in co-relation 8022. Up to 468 conditions per place. [2022-01-19 13:08:42,690 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 49 selfloop transitions, 13 changer transitions 0/433 dead transitions. [2022-01-19 13:08:42,690 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 406 places, 433 transitions, 1671 flow [2022-01-19 13:08:42,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 13:08:42,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 13:08:42,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2248 transitions. [2022-01-19 13:08:42,693 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9097531363820316 [2022-01-19 13:08:42,693 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2248 transitions. [2022-01-19 13:08:42,693 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2248 transitions. [2022-01-19 13:08:42,694 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:42,694 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2248 transitions. [2022-01-19 13:08:42,696 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 321.14285714285717) internal successors, (2248), 7 states have internal predecessors, (2248), 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 13:08:42,698 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:42,699 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:42,699 INFO L186 Difference]: Start difference. First operand has 400 places, 409 transitions, 1458 flow. Second operand 7 states and 2248 transitions. [2022-01-19 13:08:42,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 406 places, 433 transitions, 1671 flow [2022-01-19 13:08:42,709 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 404 places, 433 transitions, 1665 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 13:08:42,713 INFO L242 Difference]: Finished difference. Result has 409 places, 419 transitions, 1565 flow [2022-01-19 13:08:42,713 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1452, PETRI_DIFFERENCE_MINUEND_PLACES=398, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=409, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=397, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1565, PETRI_PLACES=409, PETRI_TRANSITIONS=419} [2022-01-19 13:08:42,713 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 95 predicate places. [2022-01-19 13:08:42,713 INFO L470 AbstractCegarLoop]: Abstraction has has 409 places, 419 transitions, 1565 flow [2022-01-19 13:08:42,714 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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 13:08:42,714 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:42,714 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:42,714 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 13:08:42,714 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:42,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:42,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1054611153, now seen corresponding path program 1 times [2022-01-19 13:08:42,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:42,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638256133] [2022-01-19 13:08:42,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:42,715 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:42,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:42,763 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2022-01-19 13:08:42,764 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:42,764 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638256133] [2022-01-19 13:08:42,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638256133] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:42,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:42,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 13:08:42,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084653029] [2022-01-19 13:08:42,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:42,764 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 13:08:42,764 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:42,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 13:08:42,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 13:08:42,766 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 312 out of 353 [2022-01-19 13:08:42,767 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 409 places, 419 transitions, 1565 flow. Second operand has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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 13:08:42,767 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:42,767 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 312 of 353 [2022-01-19 13:08:42,767 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:44,172 INFO L129 PetriNetUnfolder]: 1034/9391 cut-off events. [2022-01-19 13:08:44,172 INFO L130 PetriNetUnfolder]: For 3419/3457 co-relation queries the response was YES. [2022-01-19 13:08:44,257 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15122 conditions, 9391 events. 1034/9391 cut-off events. For 3419/3457 co-relation queries the response was YES. Maximal size of possible extension queue 325. Compared 106061 event pairs, 299 based on Foata normal form. 28/8485 useless extension candidates. Maximal degree in co-relation 15075. Up to 1027 conditions per place. [2022-01-19 13:08:44,275 INFO L132 encePairwiseOnDemand]: 337/353 looper letters, 39 selfloop transitions, 17 changer transitions 0/444 dead transitions. [2022-01-19 13:08:44,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 444 transitions, 1744 flow [2022-01-19 13:08:44,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 13:08:44,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 13:08:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 2550 transitions. [2022-01-19 13:08:44,279 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9029745042492918 [2022-01-19 13:08:44,279 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 2550 transitions. [2022-01-19 13:08:44,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 2550 transitions. [2022-01-19 13:08:44,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:44,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 2550 transitions. [2022-01-19 13:08:44,283 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 318.75) internal successors, (2550), 8 states have internal predecessors, (2550), 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 13:08:44,285 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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 13:08:44,286 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 353.0) internal successors, (3177), 9 states have internal predecessors, (3177), 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 13:08:44,286 INFO L186 Difference]: Start difference. First operand has 409 places, 419 transitions, 1565 flow. Second operand 8 states and 2550 transitions. [2022-01-19 13:08:44,286 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 444 transitions, 1744 flow [2022-01-19 13:08:44,306 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 416 places, 444 transitions, 1738 flow, removed 3 selfloop flow, removed 0 redundant places. [2022-01-19 13:08:44,318 INFO L242 Difference]: Finished difference. Result has 420 places, 429 transitions, 1668 flow [2022-01-19 13:08:44,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1559, PETRI_DIFFERENCE_MINUEND_PLACES=409, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=419, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=402, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1668, PETRI_PLACES=420, PETRI_TRANSITIONS=429} [2022-01-19 13:08:44,318 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 106 predicate places. [2022-01-19 13:08:44,319 INFO L470 AbstractCegarLoop]: Abstraction has has 420 places, 429 transitions, 1668 flow [2022-01-19 13:08:44,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 314.7142857142857) internal successors, (2203), 7 states have internal predecessors, (2203), 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 13:08:44,319 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:44,319 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:44,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 13:08:44,319 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:44,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:44,320 INFO L85 PathProgramCache]: Analyzing trace with hash 224451925, now seen corresponding path program 1 times [2022-01-19 13:08:44,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:44,320 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133250445] [2022-01-19 13:08:44,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:44,320 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:44,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:44,357 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:44,357 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:44,357 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133250445] [2022-01-19 13:08:44,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133250445] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:44,358 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:44,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 13:08:44,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186747436] [2022-01-19 13:08:44,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:44,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 13:08:44,358 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:44,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 13:08:44,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 13:08:44,360 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 313 out of 353 [2022-01-19 13:08:44,361 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 420 places, 429 transitions, 1668 flow. Second operand has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 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 13:08:44,361 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:44,361 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 313 of 353 [2022-01-19 13:08:44,361 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:45,765 INFO L129 PetriNetUnfolder]: 1164/9843 cut-off events. [2022-01-19 13:08:45,765 INFO L130 PetriNetUnfolder]: For 4994/5032 co-relation queries the response was YES. [2022-01-19 13:08:45,857 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17036 conditions, 9843 events. 1164/9843 cut-off events. For 4994/5032 co-relation queries the response was YES. Maximal size of possible extension queue 429. Compared 113044 event pairs, 416 based on Foata normal form. 74/8901 useless extension candidates. Maximal degree in co-relation 16984. Up to 1168 conditions per place. [2022-01-19 13:08:45,874 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 46 selfloop transitions, 19 changer transitions 0/446 dead transitions. [2022-01-19 13:08:45,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 426 places, 446 transitions, 1854 flow [2022-01-19 13:08:45,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 13:08:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 13:08:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2238 transitions. [2022-01-19 13:08:45,877 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.905706191825172 [2022-01-19 13:08:45,877 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2238 transitions. [2022-01-19 13:08:45,877 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2238 transitions. [2022-01-19 13:08:45,877 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:45,877 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2238 transitions. [2022-01-19 13:08:45,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 319.7142857142857) internal successors, (2238), 7 states have internal predecessors, (2238), 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 13:08:45,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:45,882 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:45,882 INFO L186 Difference]: Start difference. First operand has 420 places, 429 transitions, 1668 flow. Second operand 7 states and 2238 transitions. [2022-01-19 13:08:45,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 426 places, 446 transitions, 1854 flow [2022-01-19 13:08:45,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 423 places, 446 transitions, 1841 flow, removed 1 selfloop flow, removed 3 redundant places. [2022-01-19 13:08:45,911 INFO L242 Difference]: Finished difference. Result has 426 places, 435 transitions, 1751 flow [2022-01-19 13:08:45,911 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1655, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=411, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1751, PETRI_PLACES=426, PETRI_TRANSITIONS=435} [2022-01-19 13:08:45,911 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 112 predicate places. [2022-01-19 13:08:45,912 INFO L470 AbstractCegarLoop]: Abstraction has has 426 places, 435 transitions, 1751 flow [2022-01-19 13:08:45,912 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 317.0) internal successors, (1585), 5 states have internal predecessors, (1585), 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 13:08:45,912 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:45,912 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:45,912 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 13:08:45,912 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:45,912 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:45,912 INFO L85 PathProgramCache]: Analyzing trace with hash 1161617543, now seen corresponding path program 1 times [2022-01-19 13:08:45,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:45,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176477028] [2022-01-19 13:08:45,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:45,913 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:45,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:45,942 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:45,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:45,942 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176477028] [2022-01-19 13:08:45,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [176477028] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:45,943 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:45,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:08:45,943 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197599358] [2022-01-19 13:08:45,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:45,944 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:08:45,944 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:45,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:08:45,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:08:45,945 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 307 out of 353 [2022-01-19 13:08:45,945 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 426 places, 435 transitions, 1751 flow. Second operand has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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 13:08:45,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:45,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 307 of 353 [2022-01-19 13:08:45,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:50,448 INFO L129 PetriNetUnfolder]: 3174/27589 cut-off events. [2022-01-19 13:08:50,448 INFO L130 PetriNetUnfolder]: For 16718/18283 co-relation queries the response was YES. [2022-01-19 13:08:50,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 48080 conditions, 27589 events. 3174/27589 cut-off events. For 16718/18283 co-relation queries the response was YES. Maximal size of possible extension queue 663. Compared 385483 event pairs, 1289 based on Foata normal form. 48/25580 useless extension candidates. Maximal degree in co-relation 48025. Up to 3009 conditions per place. [2022-01-19 13:08:50,932 INFO L132 encePairwiseOnDemand]: 349/353 looper letters, 51 selfloop transitions, 3 changer transitions 0/452 dead transitions. [2022-01-19 13:08:50,933 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 428 places, 452 transitions, 1919 flow [2022-01-19 13:08:50,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:08:50,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:08:50,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 969 transitions. [2022-01-19 13:08:50,934 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9150141643059491 [2022-01-19 13:08:50,934 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 969 transitions. [2022-01-19 13:08:50,934 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 969 transitions. [2022-01-19 13:08:50,934 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:50,934 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 969 transitions. [2022-01-19 13:08:50,935 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 323.0) internal successors, (969), 3 states have internal predecessors, (969), 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 13:08:50,936 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:50,936 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 353.0) internal successors, (1412), 4 states have internal predecessors, (1412), 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 13:08:50,937 INFO L186 Difference]: Start difference. First operand has 426 places, 435 transitions, 1751 flow. Second operand 3 states and 969 transitions. [2022-01-19 13:08:50,937 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 428 places, 452 transitions, 1919 flow [2022-01-19 13:08:51,476 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 426 places, 452 transitions, 1895 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-01-19 13:08:51,480 INFO L242 Difference]: Finished difference. Result has 428 places, 437 transitions, 1749 flow [2022-01-19 13:08:51,486 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1727, PETRI_DIFFERENCE_MINUEND_PLACES=424, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=435, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1749, PETRI_PLACES=428, PETRI_TRANSITIONS=437} [2022-01-19 13:08:51,487 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 114 predicate places. [2022-01-19 13:08:51,487 INFO L470 AbstractCegarLoop]: Abstraction has has 428 places, 437 transitions, 1749 flow [2022-01-19 13:08:51,487 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 312.6666666666667) internal successors, (938), 3 states have internal predecessors, (938), 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 13:08:51,487 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:51,488 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:51,488 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 13:08:51,488 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:51,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:51,496 INFO L85 PathProgramCache]: Analyzing trace with hash 1604949299, now seen corresponding path program 1 times [2022-01-19 13:08:51,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:51,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539558741] [2022-01-19 13:08:51,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:51,511 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:51,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:51,584 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:51,584 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539558741] [2022-01-19 13:08:51,584 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539558741] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:51,584 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:51,584 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 13:08:51,584 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514632598] [2022-01-19 13:08:51,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:51,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 13:08:51,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:51,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 13:08:51,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 13:08:51,586 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 314 out of 353 [2022-01-19 13:08:51,587 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 428 places, 437 transitions, 1749 flow. Second operand has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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 13:08:51,587 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:51,587 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 314 of 353 [2022-01-19 13:08:51,587 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:54,954 INFO L129 PetriNetUnfolder]: 1878/18064 cut-off events. [2022-01-19 13:08:54,954 INFO L130 PetriNetUnfolder]: For 8872/8947 co-relation queries the response was YES. [2022-01-19 13:08:55,128 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31458 conditions, 18064 events. 1878/18064 cut-off events. For 8872/8947 co-relation queries the response was YES. Maximal size of possible extension queue 690. Compared 239582 event pairs, 673 based on Foata normal form. 107/16639 useless extension candidates. Maximal degree in co-relation 31401. Up to 2346 conditions per place. [2022-01-19 13:08:55,157 INFO L132 encePairwiseOnDemand]: 341/353 looper letters, 48 selfloop transitions, 13 changer transitions 0/460 dead transitions. [2022-01-19 13:08:55,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 434 places, 460 transitions, 1957 flow [2022-01-19 13:08:55,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 13:08:55,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 13:08:55,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2247 transitions. [2022-01-19 13:08:55,159 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9093484419263456 [2022-01-19 13:08:55,159 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2247 transitions. [2022-01-19 13:08:55,159 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2247 transitions. [2022-01-19 13:08:55,159 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:55,160 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2247 transitions. [2022-01-19 13:08:55,161 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 321.0) internal successors, (2247), 7 states have internal predecessors, (2247), 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 13:08:55,164 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:55,164 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 353.0) internal successors, (2824), 8 states have internal predecessors, (2824), 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 13:08:55,164 INFO L186 Difference]: Start difference. First operand has 428 places, 437 transitions, 1749 flow. Second operand 7 states and 2247 transitions. [2022-01-19 13:08:55,164 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 434 places, 460 transitions, 1957 flow [2022-01-19 13:08:55,208 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 432 places, 460 transitions, 1951 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 13:08:55,212 INFO L242 Difference]: Finished difference. Result has 437 places, 447 transitions, 1856 flow [2022-01-19 13:08:55,213 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1743, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=437, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=425, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1856, PETRI_PLACES=437, PETRI_TRANSITIONS=447} [2022-01-19 13:08:55,213 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 123 predicate places. [2022-01-19 13:08:55,213 INFO L470 AbstractCegarLoop]: Abstraction has has 437 places, 447 transitions, 1856 flow [2022-01-19 13:08:55,213 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 316.8333333333333) internal successors, (1901), 6 states have internal predecessors, (1901), 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 13:08:55,213 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:55,213 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:55,213 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 13:08:55,214 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:55,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:55,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1570120376, now seen corresponding path program 1 times [2022-01-19 13:08:55,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:55,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1475397333] [2022-01-19 13:08:55,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:55,214 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:55,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:55,343 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:55,344 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:55,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1475397333] [2022-01-19 13:08:55,344 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1475397333] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 13:08:55,344 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [164419102] [2022-01-19 13:08:55,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:55,344 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 13:08:55,344 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:08:55,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 13:08:55,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 13:08:55,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:55,438 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-19 13:08:55,440 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 13:08:55,684 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:55,684 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 13:08:55,684 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [164419102] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:55,684 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 13:08:55,684 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2022-01-19 13:08:55,684 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134685226] [2022-01-19 13:08:55,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:55,685 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 13:08:55,685 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:55,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 13:08:55,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-19 13:08:55,686 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 353 [2022-01-19 13:08:55,687 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 447 transitions, 1856 flow. Second operand has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 13:08:55,687 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:55,687 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 353 [2022-01-19 13:08:55,687 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:56,554 INFO L129 PetriNetUnfolder]: 439/5629 cut-off events. [2022-01-19 13:08:56,555 INFO L130 PetriNetUnfolder]: For 2940/5712 co-relation queries the response was YES. [2022-01-19 13:08:56,605 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10190 conditions, 5629 events. 439/5629 cut-off events. For 2940/5712 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 52606 event pairs, 116 based on Foata normal form. 45/5382 useless extension candidates. Maximal degree in co-relation 10128. Up to 403 conditions per place. [2022-01-19 13:08:56,614 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 59 selfloop transitions, 19 changer transitions 0/449 dead transitions. [2022-01-19 13:08:56,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 443 places, 449 transitions, 1943 flow [2022-01-19 13:08:56,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 13:08:56,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 13:08:56,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2736 transitions. [2022-01-19 13:08:56,616 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8611898016997167 [2022-01-19 13:08:56,616 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2736 transitions. [2022-01-19 13:08:56,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2736 transitions. [2022-01-19 13:08:56,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:56,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2736 transitions. [2022-01-19 13:08:56,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 304.0) internal successors, (2736), 9 states have internal predecessors, (2736), 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 13:08:56,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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 13:08:56,622 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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 13:08:56,622 INFO L186 Difference]: Start difference. First operand has 437 places, 447 transitions, 1856 flow. Second operand 9 states and 2736 transitions. [2022-01-19 13:08:56,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 443 places, 449 transitions, 1943 flow [2022-01-19 13:08:56,638 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 436 places, 449 transitions, 1877 flow, removed 23 selfloop flow, removed 7 redundant places. [2022-01-19 13:08:56,642 INFO L242 Difference]: Finished difference. Result has 440 places, 434 transitions, 1743 flow [2022-01-19 13:08:56,642 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1672, PETRI_DIFFERENCE_MINUEND_PLACES=428, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=430, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=412, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1743, PETRI_PLACES=440, PETRI_TRANSITIONS=434} [2022-01-19 13:08:56,643 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 126 predicate places. [2022-01-19 13:08:56,643 INFO L470 AbstractCegarLoop]: Abstraction has has 440 places, 434 transitions, 1743 flow [2022-01-19 13:08:56,643 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 13:08:56,643 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:56,643 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:56,658 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-19 13:08:56,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2022-01-19 13:08:56,858 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:56,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:56,859 INFO L85 PathProgramCache]: Analyzing trace with hash 625962326, now seen corresponding path program 1 times [2022-01-19 13:08:56,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:56,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [627622434] [2022-01-19 13:08:56,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:56,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:56,935 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:56,935 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:56,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [627622434] [2022-01-19 13:08:56,935 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [627622434] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 13:08:56,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313909541] [2022-01-19 13:08:56,935 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:56,935 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 13:08:56,935 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 13:08:56,936 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 13:08:56,937 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 13:08:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:57,030 INFO L263 TraceCheckSpWp]: Trace formula consists of 420 conjuncts, 7 conjunts are in the unsatisfiable core [2022-01-19 13:08:57,034 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 13:08:57,264 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:57,264 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 13:08:57,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313909541] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:57,264 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 13:08:57,264 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [9] total 11 [2022-01-19 13:08:57,264 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111750347] [2022-01-19 13:08:57,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:57,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 13:08:57,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:57,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 13:08:57,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=89, Unknown=0, NotChecked=0, Total=110 [2022-01-19 13:08:57,266 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 297 out of 353 [2022-01-19 13:08:57,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 440 places, 434 transitions, 1743 flow. Second operand has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 13:08:57,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:57,267 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 297 of 353 [2022-01-19 13:08:57,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:08:58,513 INFO L129 PetriNetUnfolder]: 1096/6554 cut-off events. [2022-01-19 13:08:58,513 INFO L130 PetriNetUnfolder]: For 3722/3735 co-relation queries the response was YES. [2022-01-19 13:08:58,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12306 conditions, 6554 events. 1096/6554 cut-off events. For 3722/3735 co-relation queries the response was YES. Maximal size of possible extension queue 620. Compared 74329 event pairs, 684 based on Foata normal form. 0/5572 useless extension candidates. Maximal degree in co-relation 12245. Up to 1695 conditions per place. [2022-01-19 13:08:58,566 INFO L132 encePairwiseOnDemand]: 343/353 looper letters, 43 selfloop transitions, 4 changer transitions 62/431 dead transitions. [2022-01-19 13:08:58,567 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 446 places, 431 transitions, 1797 flow [2022-01-19 13:08:58,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 13:08:58,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 13:08:58,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2735 transitions. [2022-01-19 13:08:58,569 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8608750393452943 [2022-01-19 13:08:58,569 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2735 transitions. [2022-01-19 13:08:58,569 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2735 transitions. [2022-01-19 13:08:58,569 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:08:58,569 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2735 transitions. [2022-01-19 13:08:58,571 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 303.8888888888889) internal successors, (2735), 9 states have internal predecessors, (2735), 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 13:08:58,573 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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 13:08:58,573 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 353.0) internal successors, (3530), 10 states have internal predecessors, (3530), 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 13:08:58,573 INFO L186 Difference]: Start difference. First operand has 440 places, 434 transitions, 1743 flow. Second operand 9 states and 2735 transitions. [2022-01-19 13:08:58,573 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 446 places, 431 transitions, 1797 flow [2022-01-19 13:08:58,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 434 places, 431 transitions, 1701 flow, removed 26 selfloop flow, removed 12 redundant places. [2022-01-19 13:08:58,594 INFO L242 Difference]: Finished difference. Result has 437 places, 369 transitions, 1230 flow [2022-01-19 13:08:58,594 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1505, PETRI_DIFFERENCE_MINUEND_PLACES=426, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=414, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1230, PETRI_PLACES=437, PETRI_TRANSITIONS=369} [2022-01-19 13:08:58,594 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 123 predicate places. [2022-01-19 13:08:58,594 INFO L470 AbstractCegarLoop]: Abstraction has has 437 places, 369 transitions, 1230 flow [2022-01-19 13:08:58,595 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 301.0) internal successors, (1806), 6 states have internal predecessors, (1806), 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 13:08:58,595 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:08:58,595 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:08:58,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 13:08:58,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 13:08:58,807 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:08:58,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:08:58,808 INFO L85 PathProgramCache]: Analyzing trace with hash -1422028368, now seen corresponding path program 1 times [2022-01-19 13:08:58,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:08:58,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [619492806] [2022-01-19 13:08:58,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:08:58,808 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:08:58,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:08:58,959 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:08:58,959 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:08:58,960 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [619492806] [2022-01-19 13:08:58,960 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [619492806] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:08:58,960 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:08:58,960 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:08:58,960 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348273482] [2022-01-19 13:08:58,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:08:58,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:08:58,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:08:58,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:08:58,960 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:08:58,962 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:08:58,964 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 437 places, 369 transitions, 1230 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:08:58,964 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:08:58,964 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:08:58,964 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:09:09,784 INFO L129 PetriNetUnfolder]: 16930/58230 cut-off events. [2022-01-19 13:09:09,785 INFO L130 PetriNetUnfolder]: For 33522/35276 co-relation queries the response was YES. [2022-01-19 13:09:10,435 INFO L84 FinitePrefix]: Finished finitePrefix Result has 122763 conditions, 58230 events. 16930/58230 cut-off events. For 33522/35276 co-relation queries the response was YES. Maximal size of possible extension queue 1165. Compared 768837 event pairs, 7521 based on Foata normal form. 1026/57441 useless extension candidates. Maximal degree in co-relation 122706. Up to 17276 conditions per place. [2022-01-19 13:09:10,557 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 502 selfloop transitions, 62 changer transitions 0/831 dead transitions. [2022-01-19 13:09:10,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 831 transitions, 4090 flow [2022-01-19 13:09:10,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 13:09:10,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 13:09:10,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 10794 transitions. [2022-01-19 13:09:10,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7458025288468182 [2022-01-19 13:09:10,563 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 10794 transitions. [2022-01-19 13:09:10,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 10794 transitions. [2022-01-19 13:09:10,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:09:10,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 10794 transitions. [2022-01-19 13:09:10,572 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 263.2682926829268) internal successors, (10794), 41 states have internal predecessors, (10794), 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 13:09:10,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:09:10,580 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:09:10,580 INFO L186 Difference]: Start difference. First operand has 437 places, 369 transitions, 1230 flow. Second operand 41 states and 10794 transitions. [2022-01-19 13:09:10,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 831 transitions, 4090 flow [2022-01-19 13:09:11,109 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 415 places, 831 transitions, 3890 flow, removed 89 selfloop flow, removed 26 redundant places. [2022-01-19 13:09:11,114 INFO L242 Difference]: Finished difference. Result has 445 places, 424 transitions, 1604 flow [2022-01-19 13:09:11,115 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1146, PETRI_DIFFERENCE_MINUEND_PLACES=375, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=1604, PETRI_PLACES=445, PETRI_TRANSITIONS=424} [2022-01-19 13:09:11,115 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 131 predicate places. [2022-01-19 13:09:11,115 INFO L470 AbstractCegarLoop]: Abstraction has has 445 places, 424 transitions, 1604 flow [2022-01-19 13:09:11,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:09:11,119 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:09:11,120 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:11,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 13:09:11,120 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:09:11,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:09:11,120 INFO L85 PathProgramCache]: Analyzing trace with hash 739231410, now seen corresponding path program 2 times [2022-01-19 13:09:11,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:09:11,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1576562076] [2022-01-19 13:09:11,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:09:11,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:09:11,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:09:11,286 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:09:11,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:09:11,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1576562076] [2022-01-19 13:09:11,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1576562076] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:09:11,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:09:11,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:09:11,286 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686414421] [2022-01-19 13:09:11,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:09:11,374 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:09:11,374 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:09:11,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:09:11,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:09:11,376 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:09:11,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 445 places, 424 transitions, 1604 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:09:11,378 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:09:11,378 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:09:11,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:09:22,717 INFO L129 PetriNetUnfolder]: 17233/60373 cut-off events. [2022-01-19 13:09:22,717 INFO L130 PetriNetUnfolder]: For 57201/59036 co-relation queries the response was YES. [2022-01-19 13:09:23,654 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144624 conditions, 60373 events. 17233/60373 cut-off events. For 57201/59036 co-relation queries the response was YES. Maximal size of possible extension queue 1157. Compared 799323 event pairs, 7611 based on Foata normal form. 972/57180 useless extension candidates. Maximal degree in co-relation 144558. Up to 17252 conditions per place. [2022-01-19 13:09:23,808 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 544 selfloop transitions, 96 changer transitions 0/907 dead transitions. [2022-01-19 13:09:23,808 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 485 places, 907 transitions, 5116 flow [2022-01-19 13:09:23,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 13:09:23,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 13:09:23,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 10787 transitions. [2022-01-19 13:09:23,816 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7453188696192911 [2022-01-19 13:09:23,816 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 10787 transitions. [2022-01-19 13:09:23,816 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 10787 transitions. [2022-01-19 13:09:23,818 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:09:23,818 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 10787 transitions. [2022-01-19 13:09:23,828 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 263.0975609756098) internal successors, (10787), 41 states have internal predecessors, (10787), 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 13:09:23,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:09:23,837 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:09:23,837 INFO L186 Difference]: Start difference. First operand has 445 places, 424 transitions, 1604 flow. Second operand 41 states and 10787 transitions. [2022-01-19 13:09:23,837 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 485 places, 907 transitions, 5116 flow [2022-01-19 13:09:24,642 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 480 places, 907 transitions, 4939 flow, removed 25 selfloop flow, removed 5 redundant places. [2022-01-19 13:09:24,652 INFO L242 Difference]: Finished difference. Result has 510 places, 480 transitions, 2316 flow [2022-01-19 13:09:24,652 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=1568, PETRI_DIFFERENCE_MINUEND_PLACES=440, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=43, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=2316, PETRI_PLACES=510, PETRI_TRANSITIONS=480} [2022-01-19 13:09:24,652 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 196 predicate places. [2022-01-19 13:09:24,653 INFO L470 AbstractCegarLoop]: Abstraction has has 510 places, 480 transitions, 2316 flow [2022-01-19 13:09:24,653 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:09:24,653 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:09:24,653 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:24,654 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 13:09:24,654 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:09:24,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:09:24,655 INFO L85 PathProgramCache]: Analyzing trace with hash 186949176, now seen corresponding path program 3 times [2022-01-19 13:09:24,655 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:09:24,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1938142258] [2022-01-19 13:09:24,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:09:24,655 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:09:24,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:09:24,808 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:09:24,808 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:09:24,808 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1938142258] [2022-01-19 13:09:24,808 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1938142258] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:09:24,808 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:09:24,808 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:09:24,808 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1252818390] [2022-01-19 13:09:24,808 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:09:24,809 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:09:24,809 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:09:24,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:09:24,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:09:24,811 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:09:24,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 480 transitions, 2316 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:09:24,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:09:24,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:09:24,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:09:38,639 INFO L129 PetriNetUnfolder]: 17855/62280 cut-off events. [2022-01-19 13:09:38,639 INFO L130 PetriNetUnfolder]: For 119521/121395 co-relation queries the response was YES. [2022-01-19 13:09:39,925 INFO L84 FinitePrefix]: Finished finitePrefix Result has 169636 conditions, 62280 events. 17855/62280 cut-off events. For 119521/121395 co-relation queries the response was YES. Maximal size of possible extension queue 1221. Compared 831432 event pairs, 7721 based on Foata normal form. 1026/59226 useless extension candidates. Maximal degree in co-relation 169539. Up to 17276 conditions per place. [2022-01-19 13:09:40,273 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 514 selfloop transitions, 110 changer transitions 0/891 dead transitions. [2022-01-19 13:09:40,273 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 549 places, 891 transitions, 6390 flow [2022-01-19 13:09:40,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-19 13:09:40,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-19 13:09:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 10500 transitions. [2022-01-19 13:09:40,280 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7436260623229461 [2022-01-19 13:09:40,280 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 10500 transitions. [2022-01-19 13:09:40,280 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 10500 transitions. [2022-01-19 13:09:40,282 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:09:40,282 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 10500 transitions. [2022-01-19 13:09:40,291 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 262.5) internal successors, (10500), 40 states have internal predecessors, (10500), 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 13:09:40,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:09:40,301 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:09:40,301 INFO L186 Difference]: Start difference. First operand has 510 places, 480 transitions, 2316 flow. Second operand 40 states and 10500 transitions. [2022-01-19 13:09:40,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 549 places, 891 transitions, 6390 flow [2022-01-19 13:09:41,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 544 places, 891 transitions, 5951 flow, removed 141 selfloop flow, removed 5 redundant places. [2022-01-19 13:09:41,914 INFO L242 Difference]: Finished difference. Result has 572 places, 532 transitions, 3102 flow [2022-01-19 13:09:41,915 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=2128, PETRI_DIFFERENCE_MINUEND_PLACES=505, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=480, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=408, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=3102, PETRI_PLACES=572, PETRI_TRANSITIONS=532} [2022-01-19 13:09:41,915 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 258 predicate places. [2022-01-19 13:09:41,916 INFO L470 AbstractCegarLoop]: Abstraction has has 572 places, 532 transitions, 3102 flow [2022-01-19 13:09:41,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:09:41,916 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:09:41,916 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:09:41,917 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 13:09:41,917 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:09:41,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:09:41,917 INFO L85 PathProgramCache]: Analyzing trace with hash -1109768790, now seen corresponding path program 4 times [2022-01-19 13:09:41,917 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:09:41,917 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517194714] [2022-01-19 13:09:41,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:09:41,918 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:09:41,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:09:42,082 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:09:42,082 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:09:42,082 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517194714] [2022-01-19 13:09:42,082 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517194714] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:09:42,082 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:09:42,082 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:09:42,082 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565446577] [2022-01-19 13:09:42,082 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:09:42,083 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:09:42,083 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:09:42,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:09:42,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:09:42,085 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:09:42,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 572 places, 532 transitions, 3102 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:09:42,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:09:42,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:09:42,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:09:57,889 INFO L129 PetriNetUnfolder]: 18529/66445 cut-off events. [2022-01-19 13:09:57,889 INFO L130 PetriNetUnfolder]: For 204365/206452 co-relation queries the response was YES. [2022-01-19 13:09:59,843 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193731 conditions, 66445 events. 18529/66445 cut-off events. For 204365/206452 co-relation queries the response was YES. Maximal size of possible extension queue 1233. Compared 895320 event pairs, 7707 based on Foata normal form. 972/63013 useless extension candidates. Maximal degree in co-relation 193605. Up to 17252 conditions per place. [2022-01-19 13:10:00,007 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 558 selfloop transitions, 135 changer transitions 0/960 dead transitions. [2022-01-19 13:10:00,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 611 places, 960 transitions, 7809 flow [2022-01-19 13:10:00,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-19 13:10:00,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-19 13:10:00,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 10497 transitions. [2022-01-19 13:10:00,012 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7434135977337111 [2022-01-19 13:10:00,012 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 10497 transitions. [2022-01-19 13:10:00,012 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 10497 transitions. [2022-01-19 13:10:00,013 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:10:00,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 10497 transitions. [2022-01-19 13:10:00,020 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 262.425) internal successors, (10497), 40 states have internal predecessors, (10497), 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 13:10:00,026 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:10:00,027 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:10:00,027 INFO L186 Difference]: Start difference. First operand has 572 places, 532 transitions, 3102 flow. Second operand 40 states and 10497 transitions. [2022-01-19 13:10:00,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 611 places, 960 transitions, 7809 flow [2022-01-19 13:10:02,594 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 607 places, 960 transitions, 7298 flow, removed 205 selfloop flow, removed 4 redundant places. [2022-01-19 13:10:02,601 INFO L242 Difference]: Finished difference. Result has 635 places, 584 transitions, 3985 flow [2022-01-19 13:10:02,602 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=2782, PETRI_DIFFERENCE_MINUEND_PLACES=568, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=532, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=435, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=3985, PETRI_PLACES=635, PETRI_TRANSITIONS=584} [2022-01-19 13:10:02,602 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 321 predicate places. [2022-01-19 13:10:02,602 INFO L470 AbstractCegarLoop]: Abstraction has has 635 places, 584 transitions, 3985 flow [2022-01-19 13:10:02,603 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:10:02,603 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:10:02,603 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:02,603 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 13:10:02,603 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:10:02,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:10:02,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1878427122, now seen corresponding path program 5 times [2022-01-19 13:10:02,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:10:02,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [471877816] [2022-01-19 13:10:02,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:10:02,603 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:10:02,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:10:02,817 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:10:02,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:10:02,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [471877816] [2022-01-19 13:10:02,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [471877816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:10:02,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:10:02,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:10:02,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810897673] [2022-01-19 13:10:02,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:10:02,817 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:10:02,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:10:02,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:10:02,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:10:02,820 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:10:02,821 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 635 places, 584 transitions, 3985 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:10:02,821 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:10:02,821 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:10:02,821 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:10:21,329 INFO L129 PetriNetUnfolder]: 19535/69392 cut-off events. [2022-01-19 13:10:21,329 INFO L130 PetriNetUnfolder]: For 339230/341186 co-relation queries the response was YES. [2022-01-19 13:10:24,107 INFO L84 FinitePrefix]: Finished finitePrefix Result has 226527 conditions, 69392 events. 19535/69392 cut-off events. For 339230/341186 co-relation queries the response was YES. Maximal size of possible extension queue 1314. Compared 940143 event pairs, 8077 based on Foata normal form. 1027/66030 useless extension candidates. Maximal degree in co-relation 226373. Up to 17276 conditions per place. [2022-01-19 13:10:24,293 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 589 selfloop transitions, 127 changer transitions 0/983 dead transitions. [2022-01-19 13:10:24,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 674 places, 983 transitions, 9421 flow [2022-01-19 13:10:24,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-19 13:10:24,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-19 13:10:24,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 10485 transitions. [2022-01-19 13:10:24,299 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7425637393767706 [2022-01-19 13:10:24,299 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 10485 transitions. [2022-01-19 13:10:24,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 10485 transitions. [2022-01-19 13:10:24,300 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:10:24,300 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 10485 transitions. [2022-01-19 13:10:24,308 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 262.125) internal successors, (10485), 40 states have internal predecessors, (10485), 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 13:10:24,314 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:10:24,315 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:10:24,315 INFO L186 Difference]: Start difference. First operand has 635 places, 584 transitions, 3985 flow. Second operand 40 states and 10485 transitions. [2022-01-19 13:10:24,315 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 674 places, 983 transitions, 9421 flow [2022-01-19 13:10:27,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 670 places, 983 transitions, 8689 flow, removed 308 selfloop flow, removed 4 redundant places. [2022-01-19 13:10:27,661 INFO L242 Difference]: Finished difference. Result has 699 places, 637 transitions, 4960 flow [2022-01-19 13:10:27,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=3514, PETRI_DIFFERENCE_MINUEND_PLACES=631, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=584, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=494, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=4960, PETRI_PLACES=699, PETRI_TRANSITIONS=637} [2022-01-19 13:10:27,662 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 385 predicate places. [2022-01-19 13:10:27,662 INFO L470 AbstractCegarLoop]: Abstraction has has 699 places, 637 transitions, 4960 flow [2022-01-19 13:10:27,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:10:27,662 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:10:27,662 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:27,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 13:10:27,663 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:10:27,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:10:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash 555993134, now seen corresponding path program 6 times [2022-01-19 13:10:27,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:10:27,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475187996] [2022-01-19 13:10:27,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:10:27,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:10:27,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:10:27,796 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:10:27,797 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:10:27,797 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475187996] [2022-01-19 13:10:27,797 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [475187996] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:10:27,797 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:10:27,797 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:10:27,797 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2054141837] [2022-01-19 13:10:27,797 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:10:27,797 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:10:27,797 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:10:27,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:10:27,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:10:27,799 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:10:27,801 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 699 places, 637 transitions, 4960 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:10:27,801 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:10:27,801 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:10:27,801 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:10:49,389 INFO L129 PetriNetUnfolder]: 20609/74741 cut-off events. [2022-01-19 13:10:49,389 INFO L130 PetriNetUnfolder]: For 538631/541051 co-relation queries the response was YES. [2022-01-19 13:10:53,194 INFO L84 FinitePrefix]: Finished finitePrefix Result has 265529 conditions, 74741 events. 20609/74741 cut-off events. For 538631/541051 co-relation queries the response was YES. Maximal size of possible extension queue 1318. Compared 1022571 event pairs, 8043 based on Foata normal form. 972/70940 useless extension candidates. Maximal degree in co-relation 265346. Up to 17252 conditions per place. [2022-01-19 13:10:53,400 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 641 selfloop transitions, 146 changer transitions 0/1054 dead transitions. [2022-01-19 13:10:53,400 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 738 places, 1054 transitions, 11197 flow [2022-01-19 13:10:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-01-19 13:10:53,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2022-01-19 13:10:53,403 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 10483 transitions. [2022-01-19 13:10:53,405 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7424220963172804 [2022-01-19 13:10:53,405 INFO L72 ComplementDD]: Start complementDD. Operand 40 states and 10483 transitions. [2022-01-19 13:10:53,405 INFO L73 IsDeterministic]: Start isDeterministic. Operand 40 states and 10483 transitions. [2022-01-19 13:10:53,406 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:10:53,406 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 40 states and 10483 transitions. [2022-01-19 13:10:53,414 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 41 states, 40 states have (on average 262.075) internal successors, (10483), 40 states have internal predecessors, (10483), 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 13:10:53,420 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:10:53,421 INFO L81 ComplementDD]: Finished complementDD. Result has 41 states, 41 states have (on average 353.0) internal successors, (14473), 41 states have internal predecessors, (14473), 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 13:10:53,421 INFO L186 Difference]: Start difference. First operand has 699 places, 637 transitions, 4960 flow. Second operand 40 states and 10483 transitions. [2022-01-19 13:10:53,421 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 738 places, 1054 transitions, 11197 flow [2022-01-19 13:10:59,960 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 734 places, 1054 transitions, 10223 flow, removed 429 selfloop flow, removed 4 redundant places. [2022-01-19 13:10:59,969 INFO L242 Difference]: Finished difference. Result has 763 places, 690 transitions, 5980 flow [2022-01-19 13:10:59,970 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=4311, PETRI_DIFFERENCE_MINUEND_PLACES=695, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=637, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=95, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=528, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=5980, PETRI_PLACES=763, PETRI_TRANSITIONS=690} [2022-01-19 13:10:59,970 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 449 predicate places. [2022-01-19 13:10:59,970 INFO L470 AbstractCegarLoop]: Abstraction has has 763 places, 690 transitions, 5980 flow [2022-01-19 13:10:59,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:10:59,971 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:10:59,971 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:10:59,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 13:10:59,971 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:10:59,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:10:59,972 INFO L85 PathProgramCache]: Analyzing trace with hash 2097803506, now seen corresponding path program 7 times [2022-01-19 13:10:59,972 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:10:59,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438127847] [2022-01-19 13:10:59,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:10:59,972 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:10:59,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:11:00,113 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:11:00,114 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:11:00,114 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438127847] [2022-01-19 13:11:00,114 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [438127847] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:11:00,114 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:11:00,114 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:11:00,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822575572] [2022-01-19 13:11:00,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:11:00,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:11:00,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:11:00,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:11:00,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:11:00,116 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:11:00,118 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 763 places, 690 transitions, 5980 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:11:00,118 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:11:00,118 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:11:00,118 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:11:27,646 INFO L129 PetriNetUnfolder]: 21807/78208 cut-off events. [2022-01-19 13:11:27,647 INFO L130 PetriNetUnfolder]: For 796432/798520 co-relation queries the response was YES. [2022-01-19 13:11:31,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 307891 conditions, 78208 events. 21807/78208 cut-off events. For 796432/798520 co-relation queries the response was YES. Maximal size of possible extension queue 1423. Compared 1074442 event pairs, 8801 based on Foata normal form. 1028/74450 useless extension candidates. Maximal degree in co-relation 307679. Up to 17276 conditions per place. [2022-01-19 13:11:32,334 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 700 selfloop transitions, 114 changer transitions 0/1081 dead transitions. [2022-01-19 13:11:32,334 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 803 places, 1081 transitions, 12909 flow [2022-01-19 13:11:32,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 13:11:32,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 13:11:32,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 10731 transitions. [2022-01-19 13:11:32,339 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7414495957990741 [2022-01-19 13:11:32,339 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 10731 transitions. [2022-01-19 13:11:32,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 10731 transitions. [2022-01-19 13:11:32,340 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:11:32,340 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 10731 transitions. [2022-01-19 13:11:32,346 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 261.7317073170732) internal successors, (10731), 41 states have internal predecessors, (10731), 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 13:11:32,353 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:11:32,354 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:11:32,354 INFO L186 Difference]: Start difference. First operand has 763 places, 690 transitions, 5980 flow. Second operand 41 states and 10731 transitions. [2022-01-19 13:11:32,354 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 803 places, 1081 transitions, 12909 flow [2022-01-19 13:11:40,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 799 places, 1081 transitions, 11742 flow, removed 518 selfloop flow, removed 4 redundant places. [2022-01-19 13:11:40,964 INFO L242 Difference]: Finished difference. Result has 829 places, 744 transitions, 7015 flow [2022-01-19 13:11:40,965 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=5162, PETRI_DIFFERENCE_MINUEND_PLACES=759, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=690, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=612, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=7015, PETRI_PLACES=829, PETRI_TRANSITIONS=744} [2022-01-19 13:11:40,965 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 515 predicate places. [2022-01-19 13:11:40,965 INFO L470 AbstractCegarLoop]: Abstraction has has 829 places, 744 transitions, 7015 flow [2022-01-19 13:11:40,966 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:11:40,966 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:11:40,966 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:11:40,966 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 13:11:40,966 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:11:40,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:11:40,966 INFO L85 PathProgramCache]: Analyzing trace with hash 957537296, now seen corresponding path program 8 times [2022-01-19 13:11:40,967 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:11:40,967 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870481162] [2022-01-19 13:11:40,967 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:11:40,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:11:40,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:11:41,098 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:11:41,098 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:11:41,099 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870481162] [2022-01-19 13:11:41,099 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1870481162] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:11:41,099 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:11:41,099 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:11:41,099 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1992000398] [2022-01-19 13:11:41,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:11:41,099 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:11:41,099 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:11:41,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:11:41,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:11:41,101 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:11:41,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 829 places, 744 transitions, 7015 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:11:41,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:11:41,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:11:41,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:12:10,402 INFO L129 PetriNetUnfolder]: 23081/84413 cut-off events. [2022-01-19 13:12:10,403 INFO L130 PetriNetUnfolder]: For 1141671/1144937 co-relation queries the response was YES. [2022-01-19 13:12:15,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 356071 conditions, 84413 events. 23081/84413 cut-off events. For 1141671/1144937 co-relation queries the response was YES. Maximal size of possible extension queue 1436. Compared 1171516 event pairs, 8891 based on Foata normal form. 972/80130 useless extension candidates. Maximal degree in co-relation 355829. Up to 17252 conditions per place. [2022-01-19 13:12:16,081 INFO L132 encePairwiseOnDemand]: 331/353 looper letters, 757 selfloop transitions, 127 changer transitions 0/1151 dead transitions. [2022-01-19 13:12:16,081 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 869 places, 1151 transitions, 14728 flow [2022-01-19 13:12:16,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-01-19 13:12:16,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2022-01-19 13:12:16,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 10729 transitions. [2022-01-19 13:12:16,085 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7413114074483521 [2022-01-19 13:12:16,085 INFO L72 ComplementDD]: Start complementDD. Operand 41 states and 10729 transitions. [2022-01-19 13:12:16,085 INFO L73 IsDeterministic]: Start isDeterministic. Operand 41 states and 10729 transitions. [2022-01-19 13:12:16,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:12:16,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 41 states and 10729 transitions. [2022-01-19 13:12:16,092 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 42 states, 41 states have (on average 261.6829268292683) internal successors, (10729), 41 states have internal predecessors, (10729), 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 13:12:16,099 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:12:16,100 INFO L81 ComplementDD]: Finished complementDD. Result has 42 states, 42 states have (on average 353.0) internal successors, (14826), 42 states have internal predecessors, (14826), 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 13:12:16,100 INFO L186 Difference]: Start difference. First operand has 829 places, 744 transitions, 7015 flow. Second operand 41 states and 10729 transitions. [2022-01-19 13:12:16,100 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 869 places, 1151 transitions, 14728 flow [2022-01-19 13:12:32,807 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 865 places, 1151 transitions, 13279 flow, removed 659 selfloop flow, removed 4 redundant places. [2022-01-19 13:12:32,818 INFO L242 Difference]: Finished difference. Result has 895 places, 798 transitions, 8063 flow [2022-01-19 13:12:32,819 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=353, PETRI_DIFFERENCE_MINUEND_FLOW=5993, PETRI_DIFFERENCE_MINUEND_PLACES=825, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=744, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=653, PETRI_DIFFERENCE_SUBTRAHEND_STATES=41, PETRI_FLOW=8063, PETRI_PLACES=895, PETRI_TRANSITIONS=798} [2022-01-19 13:12:32,819 INFO L334 CegarLoopForPetriNet]: 314 programPoint places, 581 predicate places. [2022-01-19 13:12:32,820 INFO L470 AbstractCegarLoop]: Abstraction has has 895 places, 798 transitions, 8063 flow [2022-01-19 13:12:32,820 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:12:32,820 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:12:32,820 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:12:32,820 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 13:12:32,820 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-19 13:12:32,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:12:32,821 INFO L85 PathProgramCache]: Analyzing trace with hash 998736014, now seen corresponding path program 9 times [2022-01-19 13:12:32,821 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:12:32,821 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [220764413] [2022-01-19 13:12:32,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:12:32,821 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:12:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:12:32,954 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2022-01-19 13:12:32,954 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:12:32,954 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [220764413] [2022-01-19 13:12:32,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [220764413] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:12:32,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:12:32,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2022-01-19 13:12:32,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643660832] [2022-01-19 13:12:32,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:12:32,954 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-01-19 13:12:32,954 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:12:32,955 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-01-19 13:12:32,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=241, Unknown=0, NotChecked=0, Total=272 [2022-01-19 13:12:32,957 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 252 out of 353 [2022-01-19 13:12:32,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 895 places, 798 transitions, 8063 flow. Second operand has 17 states, 17 states have (on average 254.94117647058823) internal successors, (4334), 17 states have internal predecessors, (4334), 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 13:12:32,958 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:12:32,958 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 252 of 353 [2022-01-19 13:12:32,958 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand