/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-file-item-subst.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 12:59:49,531 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 12:59:49,533 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 12:59:49,588 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 12:59:49,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 12:59:49,591 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 12:59:49,593 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 12:59:49,594 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 12:59:49,594 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 12:59:49,595 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 12:59:49,596 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 12:59:49,596 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 12:59:49,596 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 12:59:49,597 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 12:59:49,598 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 12:59:49,598 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 12:59:49,599 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 12:59:49,599 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 12:59:49,600 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 12:59:49,601 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 12:59:49,602 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 12:59:49,608 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 12:59:49,611 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 12:59:49,613 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 12:59:49,618 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 12:59:49,618 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 12:59:49,618 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 12:59:49,618 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 12:59:49,619 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 12:59:49,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 12:59:49,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 12:59:49,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 12:59:49,620 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 12:59:49,620 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 12:59:49,621 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 12:59:49,621 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 12:59:49,621 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 12:59:49,622 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 12:59:49,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 12:59:49,622 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 12:59:49,623 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 12:59:49,627 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 12:59:49,651 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 12:59:49,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 12:59:49,652 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 12:59:49,652 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 12:59:49,653 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 12:59:49,653 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 12:59:49,653 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 12:59:49,653 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 12:59:49,653 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 12:59:49,653 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 12:59:49,654 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 12:59:49,655 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 12:59:49,655 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 12:59:49,655 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 12:59:49,655 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 12:59:49,655 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 12:59:49,655 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:59:49,655 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 12:59:49,655 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 12:59:49,655 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 12:59:49,656 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 12:59:49,656 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 12:59:49,656 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 12:59:49,656 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 12:59:49,656 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 12:59:49,656 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 12:59:49,798 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 12:59:49,813 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 12:59:49,815 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 12:59:49,816 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 12:59:49,816 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 12:59:49,817 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2022-01-19 12:59:49,857 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af5daed7/4f7066fec6214f0f98aa603af61b21a6/FLAGe356f0384 [2022-01-19 12:59:50,136 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 12:59:50,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/chl-file-item-subst.wvr.c [2022-01-19 12:59:50,146 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af5daed7/4f7066fec6214f0f98aa603af61b21a6/FLAGe356f0384 [2022-01-19 12:59:50,577 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9af5daed7/4f7066fec6214f0f98aa603af61b21a6 [2022-01-19 12:59:50,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 12:59:50,579 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 12:59:50,580 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 12:59:50,580 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 12:59:50,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 12:59:50,583 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,584 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b650a16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50, skipping insertion in model container [2022-01-19 12:59:50,584 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,588 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 12:59:50,599 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 12:59:50,754 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-file-item-subst.wvr.c[3015,3028] [2022-01-19 12:59:50,764 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:59:50,772 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 12:59:50,804 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-file-item-subst.wvr.c[3015,3028] [2022-01-19 12:59:50,805 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 12:59:50,817 INFO L208 MainTranslator]: Completed translation [2022-01-19 12:59:50,817 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50 WrapperNode [2022-01-19 12:59:50,818 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 12:59:50,819 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 12:59:50,819 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 12:59:50,819 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 12:59:50,823 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,840 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,858 INFO L137 Inliner]: procedures = 23, calls = 31, calls flagged for inlining = 9, calls inlined = 13, statements flattened = 221 [2022-01-19 12:59:50,859 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 12:59:50,859 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 12:59:50,859 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 12:59:50,859 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 12:59:50,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,876 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,884 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,885 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,886 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,888 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 12:59:50,896 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 12:59:50,896 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 12:59:50,896 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 12:59:50,897 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (1/1) ... [2022-01-19 12:59:50,902 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 12:59:50,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 12:59:50,920 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 12:59:50,943 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 12:59:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 12:59:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 12:59:50,948 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 12:59:50,948 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 12:59:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 12:59:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 12:59:50,949 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 12:59:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 12:59:50,949 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 12:59:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 12:59:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 12:59:50,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 12:59:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 12:59:50,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 12:59:50,951 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 12:59:51,077 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 12:59:51,078 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 12:59:51,335 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 12:59:51,342 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 12:59:51,343 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 12:59:51,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:59:51 BoogieIcfgContainer [2022-01-19 12:59:51,344 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 12:59:51,348 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 12:59:51,349 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 12:59:51,351 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 12:59:51,352 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 12:59:50" (1/3) ... [2022-01-19 12:59:51,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc45a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:59:51, skipping insertion in model container [2022-01-19 12:59:51,353 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 12:59:50" (2/3) ... [2022-01-19 12:59:51,353 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc45a23 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 12:59:51, skipping insertion in model container [2022-01-19 12:59:51,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 12:59:51" (3/3) ... [2022-01-19 12:59:51,354 INFO L111 eAbstractionObserver]: Analyzing ICFG chl-file-item-subst.wvr.c [2022-01-19 12:59:51,358 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 12:59:51,358 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 12:59:51,358 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 12:59:51,423 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,424 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,424 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,424 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,424 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,424 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,425 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,426 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,427 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,428 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,429 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,429 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,429 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,430 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,431 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,432 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,433 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,434 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,434 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,434 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,434 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,434 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,434 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,435 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,436 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,437 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,438 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,439 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,440 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,441 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,442 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,444 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,448 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,449 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,449 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,450 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,451 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,452 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,453 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,453 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,453 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,454 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,455 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,455 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,455 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,455 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,455 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,455 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,456 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,457 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,458 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,459 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,460 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,461 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,462 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,463 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,464 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,465 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,466 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,468 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,469 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,469 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,469 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,469 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,469 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,470 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,471 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,472 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,473 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,473 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,476 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,476 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,476 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,476 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,481 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,481 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,481 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,481 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,481 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,481 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,482 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,482 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,482 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,482 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,482 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,482 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,483 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,484 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,485 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,486 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,487 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,488 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,489 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,489 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,489 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,489 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,489 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,489 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,489 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,490 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,490 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,490 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,492 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,493 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,495 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,496 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,496 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,496 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,497 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,501 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,501 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,501 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,501 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,501 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ret10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,502 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,503 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite14#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,503 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite13#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,503 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,503 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~ite8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite20#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite19#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,505 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite16#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite18#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ret17#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite21#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~ite15#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,506 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ret3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,508 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~ite4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_minus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,509 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 12:59:51,514 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 12:59:51,557 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 12:59:51,576 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 12:59:51,577 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 12:59:51,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 270 places, 286 transitions, 596 flow [2022-01-19 12:59:51,702 INFO L129 PetriNetUnfolder]: 26/283 cut-off events. [2022-01-19 12:59:51,702 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 12:59:51,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 296 conditions, 283 events. 26/283 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 738 event pairs, 0 based on Foata normal form. 0/256 useless extension candidates. Maximal degree in co-relation 199. Up to 2 conditions per place. [2022-01-19 12:59:51,709 INFO L82 GeneralOperation]: Start removeDead. Operand has 270 places, 286 transitions, 596 flow [2022-01-19 12:59:51,718 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 256 places, 272 transitions, 562 flow [2022-01-19 12:59:51,749 INFO L129 PetriNetUnfolder]: 26/271 cut-off events. [2022-01-19 12:59:51,750 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 12:59:51,750 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:51,750 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] [2022-01-19 12:59:51,751 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:51,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:51,754 INFO L85 PathProgramCache]: Analyzing trace with hash -1493606533, now seen corresponding path program 1 times [2022-01-19 12:59:51,759 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:51,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055936423] [2022-01-19 12:59:51,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:51,760 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:51,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:51,985 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 12:59:51,986 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:51,986 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055936423] [2022-01-19 12:59:51,986 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1055936423] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:51,987 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:51,987 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 12:59:51,988 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732434063] [2022-01-19 12:59:51,988 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:51,994 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 12:59:51,994 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:52,012 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 12:59:52,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 12:59:52,019 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 12:59:52,024 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 272 transitions, 562 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,024 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:52,024 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 12:59:52,026 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:52,202 INFO L129 PetriNetUnfolder]: 87/962 cut-off events. [2022-01-19 12:59:52,202 INFO L130 PetriNetUnfolder]: For 46/50 co-relation queries the response was YES. [2022-01-19 12:59:52,213 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1055 conditions, 962 events. 87/962 cut-off events. For 46/50 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 6584 event pairs, 8 based on Foata normal form. 46/891 useless extension candidates. Maximal degree in co-relation 859. Up to 28 conditions per place. [2022-01-19 12:59:52,218 INFO L132 encePairwiseOnDemand]: 274/286 looper letters, 17 selfloop transitions, 2 changer transitions 2/271 dead transitions. [2022-01-19 12:59:52,218 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 258 places, 271 transitions, 613 flow [2022-01-19 12:59:52,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 12:59:52,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 12:59:52,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 832 transitions. [2022-01-19 12:59:52,232 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9696969696969697 [2022-01-19 12:59:52,233 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 832 transitions. [2022-01-19 12:59:52,233 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 832 transitions. [2022-01-19 12:59:52,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:52,237 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 832 transitions. [2022-01-19 12:59:52,242 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 277.3333333333333) internal successors, (832), 3 states have internal predecessors, (832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,251 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,251 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,253 INFO L186 Difference]: Start difference. First operand has 256 places, 272 transitions, 562 flow. Second operand 3 states and 832 transitions. [2022-01-19 12:59:52,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 258 places, 271 transitions, 613 flow [2022-01-19 12:59:52,258 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 271 transitions, 591 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 12:59:52,264 INFO L242 Difference]: Finished difference. Result has 254 places, 264 transitions, 550 flow [2022-01-19 12:59:52,266 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=534, PETRI_DIFFERENCE_MINUEND_PLACES=250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=550, PETRI_PLACES=254, PETRI_TRANSITIONS=264} [2022-01-19 12:59:52,269 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, -2 predicate places. [2022-01-19 12:59:52,269 INFO L470 AbstractCegarLoop]: Abstraction has has 254 places, 264 transitions, 550 flow [2022-01-19 12:59:52,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,269 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:52,270 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] [2022-01-19 12:59:52,270 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 12:59:52,270 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:52,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:52,271 INFO L85 PathProgramCache]: Analyzing trace with hash 1388136453, now seen corresponding path program 1 times [2022-01-19 12:59:52,271 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:52,271 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472759440] [2022-01-19 12:59:52,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:52,271 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:52,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:52,385 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 12:59:52,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:52,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472759440] [2022-01-19 12:59:52,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472759440] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:52,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:52,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 12:59:52,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1588816024] [2022-01-19 12:59:52,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:52,387 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 12:59:52,387 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:52,388 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 12:59:52,388 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 12:59:52,389 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 12:59:52,390 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 254 places, 264 transitions, 550 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,390 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:52,390 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 12:59:52,390 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:52,603 INFO L129 PetriNetUnfolder]: 137/1588 cut-off events. [2022-01-19 12:59:52,604 INFO L130 PetriNetUnfolder]: For 56/59 co-relation queries the response was YES. [2022-01-19 12:59:52,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1755 conditions, 1588 events. 137/1588 cut-off events. For 56/59 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 13149 event pairs, 19 based on Foata normal form. 0/1419 useless extension candidates. Maximal degree in co-relation 967. Up to 78 conditions per place. [2022-01-19 12:59:52,625 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 17 selfloop transitions, 5 changer transitions 0/272 dead transitions. [2022-01-19 12:59:52,625 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 272 transitions, 615 flow [2022-01-19 12:59:52,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 12:59:52,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 12:59:52,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 12:59:52,627 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 12:59:52,627 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 12:59:52,628 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 12:59:52,628 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:52,628 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 12:59:52,629 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,631 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,631 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,631 INFO L186 Difference]: Start difference. First operand has 254 places, 264 transitions, 550 flow. Second operand 3 states and 814 transitions. [2022-01-19 12:59:52,631 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 272 transitions, 615 flow [2022-01-19 12:59:52,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 253 places, 272 transitions, 613 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 12:59:52,637 INFO L242 Difference]: Finished difference. Result has 255 places, 267 transitions, 586 flow [2022-01-19 12:59:52,637 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=548, PETRI_DIFFERENCE_MINUEND_PLACES=251, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=259, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=586, PETRI_PLACES=255, PETRI_TRANSITIONS=267} [2022-01-19 12:59:52,638 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, -1 predicate places. [2022-01-19 12:59:52,638 INFO L470 AbstractCegarLoop]: Abstraction has has 255 places, 267 transitions, 586 flow [2022-01-19 12:59:52,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,639 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:52,639 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] [2022-01-19 12:59:52,639 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 12:59:52,639 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:52,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:52,640 INFO L85 PathProgramCache]: Analyzing trace with hash 378354523, now seen corresponding path program 1 times [2022-01-19 12:59:52,640 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:52,640 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539810241] [2022-01-19 12:59:52,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:52,640 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:52,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:52,717 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 12:59:52,718 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:52,718 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539810241] [2022-01-19 12:59:52,718 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [539810241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:52,718 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:52,718 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 12:59:52,719 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [714605968] [2022-01-19 12:59:52,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:52,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 12:59:52,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:52,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 12:59:52,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 12:59:52,722 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 12:59:52,723 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 267 transitions, 586 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,723 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:52,723 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 12:59:52,724 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:52,925 INFO L129 PetriNetUnfolder]: 119/1497 cut-off events. [2022-01-19 12:59:52,926 INFO L130 PetriNetUnfolder]: For 120/120 co-relation queries the response was YES. [2022-01-19 12:59:52,933 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1699 conditions, 1497 events. 119/1497 cut-off events. For 120/120 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 11223 event pairs, 19 based on Foata normal form. 12/1359 useless extension candidates. Maximal degree in co-relation 701. Up to 55 conditions per place. [2022-01-19 12:59:52,937 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 22 selfloop transitions, 3 changer transitions 0/275 dead transitions. [2022-01-19 12:59:52,938 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 275 transitions, 663 flow [2022-01-19 12:59:52,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 12:59:52,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 12:59:52,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 12:59:52,939 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 12:59:52,939 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 12:59:52,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 12:59:52,940 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:52,940 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 12:59:52,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,942 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,943 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,943 INFO L186 Difference]: Start difference. First operand has 255 places, 267 transitions, 586 flow. Second operand 3 states and 814 transitions. [2022-01-19 12:59:52,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 275 transitions, 663 flow [2022-01-19 12:59:52,944 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 275 transitions, 653 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 12:59:52,946 INFO L242 Difference]: Finished difference. Result has 257 places, 270 transitions, 612 flow [2022-01-19 12:59:52,947 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=576, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=267, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=264, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=612, PETRI_PLACES=257, PETRI_TRANSITIONS=270} [2022-01-19 12:59:52,947 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1 predicate places. [2022-01-19 12:59:52,947 INFO L470 AbstractCegarLoop]: Abstraction has has 257 places, 270 transitions, 612 flow [2022-01-19 12:59:52,948 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,948 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:52,948 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] [2022-01-19 12:59:52,948 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 12:59:52,948 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:52,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:52,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1782641751, now seen corresponding path program 2 times [2022-01-19 12:59:52,949 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:52,949 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214778337] [2022-01-19 12:59:52,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:52,949 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:52,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:52,984 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 12:59:52,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:52,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214778337] [2022-01-19 12:59:52,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214778337] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:52,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:52,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 12:59:52,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789393438] [2022-01-19 12:59:52,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:52,985 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 12:59:52,985 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:52,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 12:59:52,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 12:59:52,987 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 12:59:52,987 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 270 transitions, 612 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:52,987 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:52,987 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 12:59:52,987 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:53,090 INFO L129 PetriNetUnfolder]: 74/1053 cut-off events. [2022-01-19 12:59:53,090 INFO L130 PetriNetUnfolder]: For 51/51 co-relation queries the response was YES. [2022-01-19 12:59:53,097 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1197 conditions, 1053 events. 74/1053 cut-off events. For 51/51 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 7174 event pairs, 8 based on Foata normal form. 0/960 useless extension candidates. Maximal degree in co-relation 910. Up to 28 conditions per place. [2022-01-19 12:59:53,101 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 17 selfloop transitions, 4 changer transitions 0/277 dead transitions. [2022-01-19 12:59:53,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 259 places, 277 transitions, 677 flow [2022-01-19 12:59:53,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 12:59:53,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 12:59:53,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2022-01-19 12:59:53,103 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951048951048951 [2022-01-19 12:59:53,103 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 816 transitions. [2022-01-19 12:59:53,103 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 816 transitions. [2022-01-19 12:59:53,103 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:53,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 816 transitions. [2022-01-19 12:59:53,105 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,106 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,106 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,106 INFO L186 Difference]: Start difference. First operand has 257 places, 270 transitions, 612 flow. Second operand 3 states and 816 transitions. [2022-01-19 12:59:53,106 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 259 places, 277 transitions, 677 flow [2022-01-19 12:59:53,108 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 277 transitions, 668 flow, removed 3 selfloop flow, removed 1 redundant places. [2022-01-19 12:59:53,111 INFO L242 Difference]: Finished difference. Result has 260 places, 272 transitions, 635 flow [2022-01-19 12:59:53,111 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=603, PETRI_DIFFERENCE_MINUEND_PLACES=256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=270, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=635, PETRI_PLACES=260, PETRI_TRANSITIONS=272} [2022-01-19 12:59:53,112 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 4 predicate places. [2022-01-19 12:59:53,113 INFO L470 AbstractCegarLoop]: Abstraction has has 260 places, 272 transitions, 635 flow [2022-01-19 12:59:53,113 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,113 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:53,113 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] [2022-01-19 12:59:53,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 12:59:53,113 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:53,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:53,114 INFO L85 PathProgramCache]: Analyzing trace with hash 29985841, now seen corresponding path program 1 times [2022-01-19 12:59:53,114 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:53,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217843107] [2022-01-19 12:59:53,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:53,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:53,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:53,178 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 12:59:53,178 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:53,178 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217843107] [2022-01-19 12:59:53,178 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217843107] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:53,178 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:53,178 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 12:59:53,178 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1103088470] [2022-01-19 12:59:53,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:53,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 12:59:53,179 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:53,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 12:59:53,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 12:59:53,180 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 12:59:53,181 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 272 transitions, 635 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,181 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:53,181 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 12:59:53,181 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:53,431 INFO L129 PetriNetUnfolder]: 209/3217 cut-off events. [2022-01-19 12:59:53,431 INFO L130 PetriNetUnfolder]: For 86/135 co-relation queries the response was YES. [2022-01-19 12:59:53,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3519 conditions, 3217 events. 209/3217 cut-off events. For 86/135 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 33504 event pairs, 38 based on Foata normal form. 0/2922 useless extension candidates. Maximal degree in co-relation 1975. Up to 143 conditions per place. [2022-01-19 12:59:53,462 INFO L132 encePairwiseOnDemand]: 276/286 looper letters, 18 selfloop transitions, 6 changer transitions 0/280 dead transitions. [2022-01-19 12:59:53,462 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 280 transitions, 703 flow [2022-01-19 12:59:53,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 12:59:53,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 12:59:53,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 12:59:53,464 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 12:59:53,464 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 12:59:53,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 12:59:53,465 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:53,465 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 12:59:53,466 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,467 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,468 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,468 INFO L186 Difference]: Start difference. First operand has 260 places, 272 transitions, 635 flow. Second operand 3 states and 811 transitions. [2022-01-19 12:59:53,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 280 transitions, 703 flow [2022-01-19 12:59:53,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 280 transitions, 691 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 12:59:53,474 INFO L242 Difference]: Finished difference. Result has 262 places, 276 transitions, 671 flow [2022-01-19 12:59:53,474 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=623, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=671, PETRI_PLACES=262, PETRI_TRANSITIONS=276} [2022-01-19 12:59:53,476 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 6 predicate places. [2022-01-19 12:59:53,476 INFO L470 AbstractCegarLoop]: Abstraction has has 262 places, 276 transitions, 671 flow [2022-01-19 12:59:53,477 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,477 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:53,477 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] [2022-01-19 12:59:53,477 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 12:59:53,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:53,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:53,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1606902331, now seen corresponding path program 1 times [2022-01-19 12:59:53,478 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:53,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369670546] [2022-01-19 12:59:53,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:53,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:53,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:53,517 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 12:59:53,517 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:53,517 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369670546] [2022-01-19 12:59:53,518 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1369670546] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:53,518 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:53,518 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 12:59:53,518 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258276231] [2022-01-19 12:59:53,519 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:53,519 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 12:59:53,519 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:53,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 12:59:53,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 12:59:53,521 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 12:59:53,521 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 276 transitions, 671 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,521 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:53,521 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 12:59:53,521 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:53,708 INFO L129 PetriNetUnfolder]: 144/2249 cut-off events. [2022-01-19 12:59:53,708 INFO L130 PetriNetUnfolder]: For 203/248 co-relation queries the response was YES. [2022-01-19 12:59:53,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2632 conditions, 2249 events. 144/2249 cut-off events. For 203/248 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 20271 event pairs, 24 based on Foata normal form. 28/2113 useless extension candidates. Maximal degree in co-relation 1281. Up to 96 conditions per place. [2022-01-19 12:59:53,721 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 24 selfloop transitions, 4 changer transitions 0/284 dead transitions. [2022-01-19 12:59:53,721 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 284 transitions, 755 flow [2022-01-19 12:59:53,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 12:59:53,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 12:59:53,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 12:59:53,723 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 12:59:53,723 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 12:59:53,723 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 12:59:53,723 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:53,723 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 12:59:53,724 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,726 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,726 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,726 INFO L186 Difference]: Start difference. First operand has 262 places, 276 transitions, 671 flow. Second operand 3 states and 811 transitions. [2022-01-19 12:59:53,726 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 284 transitions, 755 flow [2022-01-19 12:59:53,728 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 262 places, 284 transitions, 743 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 12:59:53,731 INFO L242 Difference]: Finished difference. Result has 264 places, 280 transitions, 707 flow [2022-01-19 12:59:53,731 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=659, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=276, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=707, PETRI_PLACES=264, PETRI_TRANSITIONS=280} [2022-01-19 12:59:53,733 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 8 predicate places. [2022-01-19 12:59:53,733 INFO L470 AbstractCegarLoop]: Abstraction has has 264 places, 280 transitions, 707 flow [2022-01-19 12:59:53,734 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,734 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:53,734 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] [2022-01-19 12:59:53,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 12:59:53,734 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:53,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:53,735 INFO L85 PathProgramCache]: Analyzing trace with hash -297655397, now seen corresponding path program 1 times [2022-01-19 12:59:53,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:53,735 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188605977] [2022-01-19 12:59:53,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:53,735 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:53,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:53,823 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 12:59:53,823 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:53,824 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188605977] [2022-01-19 12:59:53,824 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188605977] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:53,824 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:53,824 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 12:59:53,824 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595418677] [2022-01-19 12:59:53,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:53,827 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 12:59:53,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:53,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 12:59:53,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 12:59:53,829 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 286 [2022-01-19 12:59:53,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 280 transitions, 707 flow. Second operand has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:53,830 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:53,830 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 286 [2022-01-19 12:59:53,830 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:54,015 INFO L129 PetriNetUnfolder]: 123/1881 cut-off events. [2022-01-19 12:59:54,015 INFO L130 PetriNetUnfolder]: For 104/253 co-relation queries the response was YES. [2022-01-19 12:59:54,027 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2316 conditions, 1881 events. 123/1881 cut-off events. For 104/253 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 17953 event pairs, 26 based on Foata normal form. 2/1753 useless extension candidates. Maximal degree in co-relation 1683. Up to 133 conditions per place. [2022-01-19 12:59:54,031 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 23 selfloop transitions, 2 changer transitions 17/300 dead transitions. [2022-01-19 12:59:54,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 300 transitions, 844 flow [2022-01-19 12:59:54,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 12:59:54,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 12:59:54,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2320 transitions. [2022-01-19 12:59:54,036 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9013209013209014 [2022-01-19 12:59:54,036 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2320 transitions. [2022-01-19 12:59:54,036 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2320 transitions. [2022-01-19 12:59:54,037 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:54,037 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2320 transitions. [2022-01-19 12:59:54,040 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 257.77777777777777) internal successors, (2320), 9 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,043 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,043 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,043 INFO L186 Difference]: Start difference. First operand has 264 places, 280 transitions, 707 flow. Second operand 9 states and 2320 transitions. [2022-01-19 12:59:54,043 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 300 transitions, 844 flow [2022-01-19 12:59:54,045 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 300 transitions, 832 flow, removed 4 selfloop flow, removed 1 redundant places. [2022-01-19 12:59:54,048 INFO L242 Difference]: Finished difference. Result has 278 places, 281 transitions, 718 flow [2022-01-19 12:59:54,048 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=695, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=280, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=718, PETRI_PLACES=278, PETRI_TRANSITIONS=281} [2022-01-19 12:59:54,048 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 22 predicate places. [2022-01-19 12:59:54,049 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 281 transitions, 718 flow [2022-01-19 12:59:54,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,049 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:54,049 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] [2022-01-19 12:59:54,050 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 12:59:54,050 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:54,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:54,050 INFO L85 PathProgramCache]: Analyzing trace with hash -1373554015, now seen corresponding path program 1 times [2022-01-19 12:59:54,050 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:54,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666043892] [2022-01-19 12:59:54,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:54,050 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:54,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:54,132 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 12:59:54,132 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:54,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666043892] [2022-01-19 12:59:54,132 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666043892] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:54,132 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:54,132 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 12:59:54,132 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595681393] [2022-01-19 12:59:54,133 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:54,133 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 12:59:54,133 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:54,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 12:59:54,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 12:59:54,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 12:59:54,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 281 transitions, 718 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:54,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 12:59:54,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:54,679 INFO L129 PetriNetUnfolder]: 960/4324 cut-off events. [2022-01-19 12:59:54,679 INFO L130 PetriNetUnfolder]: For 269/366 co-relation queries the response was YES. [2022-01-19 12:59:54,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6478 conditions, 4324 events. 960/4324 cut-off events. For 269/366 co-relation queries the response was YES. Maximal size of possible extension queue 334. Compared 46936 event pairs, 215 based on Foata normal form. 3/4090 useless extension candidates. Maximal degree in co-relation 6457. Up to 911 conditions per place. [2022-01-19 12:59:54,706 INFO L132 encePairwiseOnDemand]: 272/286 looper letters, 65 selfloop transitions, 46 changer transitions 22/384 dead transitions. [2022-01-19 12:59:54,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 294 places, 384 transitions, 1224 flow [2022-01-19 12:59:54,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 12:59:54,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 12:59:54,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5524 transitions. [2022-01-19 12:59:54,714 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8779402415766052 [2022-01-19 12:59:54,714 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5524 transitions. [2022-01-19 12:59:54,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5524 transitions. [2022-01-19 12:59:54,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:54,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5524 transitions. [2022-01-19 12:59:54,722 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 251.0909090909091) internal successors, (5524), 22 states have internal predecessors, (5524), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,730 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,731 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,731 INFO L186 Difference]: Start difference. First operand has 278 places, 281 transitions, 718 flow. Second operand 22 states and 5524 transitions. [2022-01-19 12:59:54,731 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 294 places, 384 transitions, 1224 flow [2022-01-19 12:59:54,733 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 384 transitions, 1207 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-01-19 12:59:54,736 INFO L242 Difference]: Finished difference. Result has 302 places, 326 transitions, 996 flow [2022-01-19 12:59:54,737 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=707, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=281, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=270, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=996, PETRI_PLACES=302, PETRI_TRANSITIONS=326} [2022-01-19 12:59:54,738 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 46 predicate places. [2022-01-19 12:59:54,738 INFO L470 AbstractCegarLoop]: Abstraction has has 302 places, 326 transitions, 996 flow [2022-01-19 12:59:54,740 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,741 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:54,741 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] [2022-01-19 12:59:54,741 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 12:59:54,741 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:54,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:54,741 INFO L85 PathProgramCache]: Analyzing trace with hash 1394085275, now seen corresponding path program 1 times [2022-01-19 12:59:54,741 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:54,741 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1274813495] [2022-01-19 12:59:54,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:54,742 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:54,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:54,849 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 12:59:54,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:54,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1274813495] [2022-01-19 12:59:54,850 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1274813495] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:54,850 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:54,850 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 12:59:54,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1736312393] [2022-01-19 12:59:54,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:54,850 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 12:59:54,850 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 12:59:54,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 12:59:54,853 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 12:59:54,859 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 302 places, 326 transitions, 996 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:54,859 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:54,859 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 12:59:54,859 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:55,503 INFO L129 PetriNetUnfolder]: 1007/4631 cut-off events. [2022-01-19 12:59:55,503 INFO L130 PetriNetUnfolder]: For 3320/3435 co-relation queries the response was YES. [2022-01-19 12:59:55,529 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9706 conditions, 4631 events. 1007/4631 cut-off events. For 3320/3435 co-relation queries the response was YES. Maximal size of possible extension queue 371. Compared 51785 event pairs, 480 based on Foata normal form. 2/4409 useless extension candidates. Maximal degree in co-relation 9656. Up to 1392 conditions per place. [2022-01-19 12:59:55,542 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 120 selfloop transitions, 31 changer transitions 28/430 dead transitions. [2022-01-19 12:59:55,542 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 323 places, 430 transitions, 1757 flow [2022-01-19 12:59:55,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 12:59:55,542 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 12:59:55,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6015 transitions. [2022-01-19 12:59:55,551 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8763111888111889 [2022-01-19 12:59:55,551 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6015 transitions. [2022-01-19 12:59:55,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6015 transitions. [2022-01-19 12:59:55,553 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:55,553 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6015 transitions. [2022-01-19 12:59:55,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.625) internal successors, (6015), 24 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:55,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:55,570 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:55,570 INFO L186 Difference]: Start difference. First operand has 302 places, 326 transitions, 996 flow. Second operand 24 states and 6015 transitions. [2022-01-19 12:59:55,571 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 323 places, 430 transitions, 1757 flow [2022-01-19 12:59:55,592 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 321 places, 430 transitions, 1747 flow, removed 5 selfloop flow, removed 2 redundant places. [2022-01-19 12:59:55,596 INFO L242 Difference]: Finished difference. Result has 341 places, 355 transitions, 1319 flow [2022-01-19 12:59:55,596 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=992, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=326, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=1319, PETRI_PLACES=341, PETRI_TRANSITIONS=355} [2022-01-19 12:59:55,597 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 85 predicate places. [2022-01-19 12:59:55,597 INFO L470 AbstractCegarLoop]: Abstraction has has 341 places, 355 transitions, 1319 flow [2022-01-19 12:59:55,598 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:55,598 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:55,598 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] [2022-01-19 12:59:55,598 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 12:59:55,598 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:55,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:55,598 INFO L85 PathProgramCache]: Analyzing trace with hash -2142703709, now seen corresponding path program 2 times [2022-01-19 12:59:55,598 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:55,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204780465] [2022-01-19 12:59:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:55,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:55,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:55,686 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 12:59:55,686 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:55,686 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204780465] [2022-01-19 12:59:55,686 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204780465] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:55,686 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:55,686 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 12:59:55,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264079496] [2022-01-19 12:59:55,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:55,687 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 12:59:55,687 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:55,687 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 12:59:55,687 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 12:59:55,689 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 12:59:55,691 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 355 transitions, 1319 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:55,691 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:55,691 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 12:59:55,691 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:56,477 INFO L129 PetriNetUnfolder]: 1092/4901 cut-off events. [2022-01-19 12:59:56,477 INFO L130 PetriNetUnfolder]: For 9057/9172 co-relation queries the response was YES. [2022-01-19 12:59:56,504 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13202 conditions, 4901 events. 1092/4901 cut-off events. For 9057/9172 co-relation queries the response was YES. Maximal size of possible extension queue 402. Compared 54836 event pairs, 562 based on Foata normal form. 4/4652 useless extension candidates. Maximal degree in co-relation 13133. Up to 1583 conditions per place. [2022-01-19 12:59:56,517 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 123 selfloop transitions, 41 changer transitions 18/433 dead transitions. [2022-01-19 12:59:56,517 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 356 places, 433 transitions, 2280 flow [2022-01-19 12:59:56,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 12:59:56,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 12:59:56,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 12:59:56,523 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 12:59:56,523 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 12:59:56,523 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 12:59:56,524 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:56,524 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 12:59:56,529 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:56,534 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:56,535 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:56,535 INFO L186 Difference]: Start difference. First operand has 341 places, 355 transitions, 1319 flow. Second operand 18 states and 4511 transitions. [2022-01-19 12:59:56,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 356 places, 433 transitions, 2280 flow [2022-01-19 12:59:56,588 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 433 transitions, 2052 flow, removed 114 selfloop flow, removed 2 redundant places. [2022-01-19 12:59:56,592 INFO L242 Difference]: Finished difference. Result has 364 places, 384 transitions, 1599 flow [2022-01-19 12:59:56,593 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1219, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=355, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=332, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1599, PETRI_PLACES=364, PETRI_TRANSITIONS=384} [2022-01-19 12:59:56,593 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 108 predicate places. [2022-01-19 12:59:56,593 INFO L470 AbstractCegarLoop]: Abstraction has has 364 places, 384 transitions, 1599 flow [2022-01-19 12:59:56,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:56,594 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:56,594 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] [2022-01-19 12:59:56,594 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 12:59:56,594 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:56,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:56,594 INFO L85 PathProgramCache]: Analyzing trace with hash 2035053495, now seen corresponding path program 3 times [2022-01-19 12:59:56,594 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:56,595 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479096302] [2022-01-19 12:59:56,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:56,595 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:56,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:56,672 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 12:59:56,672 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:56,672 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479096302] [2022-01-19 12:59:56,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479096302] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:56,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:56,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 12:59:56,672 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576355970] [2022-01-19 12:59:56,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:56,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 12:59:56,673 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:56,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 12:59:56,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 12:59:56,675 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 12:59:56,677 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 364 places, 384 transitions, 1599 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:56,677 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:56,677 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 12:59:56,677 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:57,441 INFO L129 PetriNetUnfolder]: 1157/5281 cut-off events. [2022-01-19 12:59:57,441 INFO L130 PetriNetUnfolder]: For 10719/10834 co-relation queries the response was YES. [2022-01-19 12:59:57,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14775 conditions, 5281 events. 1157/5281 cut-off events. For 10719/10834 co-relation queries the response was YES. Maximal size of possible extension queue 445. Compared 60501 event pairs, 541 based on Foata normal form. 2/5040 useless extension candidates. Maximal degree in co-relation 14697. Up to 1617 conditions per place. [2022-01-19 12:59:57,492 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 130 selfloop transitions, 53 changer transitions 14/448 dead transitions. [2022-01-19 12:59:57,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 377 places, 448 transitions, 2510 flow [2022-01-19 12:59:57,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 12:59:57,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 12:59:57,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4014 transitions. [2022-01-19 12:59:57,568 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8771853146853147 [2022-01-19 12:59:57,568 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4014 transitions. [2022-01-19 12:59:57,568 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4014 transitions. [2022-01-19 12:59:57,570 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:57,570 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4014 transitions. [2022-01-19 12:59:57,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 250.875) internal successors, (4014), 16 states have internal predecessors, (4014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:57,580 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:57,580 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:57,581 INFO L186 Difference]: Start difference. First operand has 364 places, 384 transitions, 1599 flow. Second operand 16 states and 4014 transitions. [2022-01-19 12:59:57,581 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 377 places, 448 transitions, 2510 flow [2022-01-19 12:59:57,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 375 places, 448 transitions, 2386 flow, removed 62 selfloop flow, removed 2 redundant places. [2022-01-19 12:59:57,661 INFO L242 Difference]: Finished difference. Result has 386 places, 403 transitions, 1892 flow [2022-01-19 12:59:57,661 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1509, PETRI_DIFFERENCE_MINUEND_PLACES=360, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=344, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1892, PETRI_PLACES=386, PETRI_TRANSITIONS=403} [2022-01-19 12:59:57,661 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 130 predicate places. [2022-01-19 12:59:57,661 INFO L470 AbstractCegarLoop]: Abstraction has has 386 places, 403 transitions, 1892 flow [2022-01-19 12:59:57,662 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:57,662 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:57,662 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] [2022-01-19 12:59:57,662 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 12:59:57,662 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:57,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:57,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1940695569, now seen corresponding path program 4 times [2022-01-19 12:59:57,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:57,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740019036] [2022-01-19 12:59:57,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:57,663 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:57,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:57,737 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 12:59:57,737 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:57,737 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740019036] [2022-01-19 12:59:57,737 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740019036] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:57,737 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:57,737 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 12:59:57,738 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1957517821] [2022-01-19 12:59:57,738 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:57,738 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 12:59:57,738 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:57,738 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 12:59:57,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 12:59:57,740 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 12:59:57,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 386 places, 403 transitions, 1892 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:57,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:57,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 12:59:57,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:58,670 INFO L129 PetriNetUnfolder]: 1294/5780 cut-off events. [2022-01-19 12:59:58,671 INFO L130 PetriNetUnfolder]: For 17111/17235 co-relation queries the response was YES. [2022-01-19 12:59:58,709 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17423 conditions, 5780 events. 1294/5780 cut-off events. For 17111/17235 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 66911 event pairs, 599 based on Foata normal form. 4/5534 useless extension candidates. Maximal degree in co-relation 17335. Up to 1691 conditions per place. [2022-01-19 12:59:58,724 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 166 selfloop transitions, 44 changer transitions 17/478 dead transitions. [2022-01-19 12:59:58,724 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 400 places, 478 transitions, 3090 flow [2022-01-19 12:59:58,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 12:59:58,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 12:59:58,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4268 transitions. [2022-01-19 12:59:58,728 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778280542986425 [2022-01-19 12:59:58,728 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4268 transitions. [2022-01-19 12:59:58,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4268 transitions. [2022-01-19 12:59:58,729 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 12:59:58,729 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4268 transitions. [2022-01-19 12:59:58,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 251.05882352941177) internal successors, (4268), 17 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:58,739 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:58,739 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:58,739 INFO L186 Difference]: Start difference. First operand has 386 places, 403 transitions, 1892 flow. Second operand 17 states and 4268 transitions. [2022-01-19 12:59:58,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 400 places, 478 transitions, 3090 flow [2022-01-19 12:59:58,828 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 397 places, 478 transitions, 2960 flow, removed 56 selfloop flow, removed 3 redundant places. [2022-01-19 12:59:58,832 INFO L242 Difference]: Finished difference. Result has 408 places, 432 transitions, 2364 flow [2022-01-19 12:59:58,833 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=1792, PETRI_DIFFERENCE_MINUEND_PLACES=381, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=377, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=2364, PETRI_PLACES=408, PETRI_TRANSITIONS=432} [2022-01-19 12:59:58,833 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 152 predicate places. [2022-01-19 12:59:58,833 INFO L470 AbstractCegarLoop]: Abstraction has has 408 places, 432 transitions, 2364 flow [2022-01-19 12:59:58,834 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:58,834 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 12:59:58,834 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] [2022-01-19 12:59:58,834 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 12:59:58,834 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 12:59:58,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 12:59:58,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1748130669, now seen corresponding path program 5 times [2022-01-19 12:59:58,834 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 12:59:58,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930884382] [2022-01-19 12:59:58,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 12:59:58,835 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 12:59:58,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 12:59:58,909 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 12:59:58,909 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 12:59:58,909 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930884382] [2022-01-19 12:59:58,909 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930884382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 12:59:58,909 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 12:59:58,909 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 12:59:58,909 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947782153] [2022-01-19 12:59:58,909 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 12:59:58,910 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 12:59:58,910 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 12:59:58,910 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 12:59:58,910 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 12:59:58,911 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 12:59:58,913 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 408 places, 432 transitions, 2364 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 12:59:58,913 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 12:59:58,913 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 12:59:58,913 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 12:59:59,971 INFO L129 PetriNetUnfolder]: 1357/6057 cut-off events. [2022-01-19 12:59:59,971 INFO L130 PetriNetUnfolder]: For 23009/23142 co-relation queries the response was YES. [2022-01-19 13:00:00,021 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19519 conditions, 6057 events. 1357/6057 cut-off events. For 23009/23142 co-relation queries the response was YES. Maximal size of possible extension queue 531. Compared 71249 event pairs, 559 based on Foata normal form. 11/5825 useless extension candidates. Maximal degree in co-relation 19422. Up to 1709 conditions per place. [2022-01-19 13:00:00,040 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 158 selfloop transitions, 83 changer transitions 24/516 dead transitions. [2022-01-19 13:00:00,041 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 427 places, 516 transitions, 3730 flow [2022-01-19 13:00:00,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:00:00,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:00:00,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5507 transitions. [2022-01-19 13:00:00,046 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8752383979656707 [2022-01-19 13:00:00,046 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5507 transitions. [2022-01-19 13:00:00,046 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5507 transitions. [2022-01-19 13:00:00,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:00,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5507 transitions. [2022-01-19 13:00:00,054 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.3181818181818) internal successors, (5507), 22 states have internal predecessors, (5507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:00,059 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:00,060 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:00,060 INFO L186 Difference]: Start difference. First operand has 408 places, 432 transitions, 2364 flow. Second operand 22 states and 5507 transitions. [2022-01-19 13:00:00,060 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 427 places, 516 transitions, 3730 flow [2022-01-19 13:00:00,237 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 425 places, 516 transitions, 3462 flow, removed 134 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:00,242 INFO L242 Difference]: Finished difference. Result has 438 places, 460 transitions, 2806 flow [2022-01-19 13:00:00,242 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2166, PETRI_DIFFERENCE_MINUEND_PLACES=404, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=367, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2806, PETRI_PLACES=438, PETRI_TRANSITIONS=460} [2022-01-19 13:00:00,243 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 182 predicate places. [2022-01-19 13:00:00,243 INFO L470 AbstractCegarLoop]: Abstraction has has 438 places, 460 transitions, 2806 flow [2022-01-19 13:00:00,243 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:00,243 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:00,243 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] [2022-01-19 13:00:00,243 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 13:00:00,244 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:00,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:00,244 INFO L85 PathProgramCache]: Analyzing trace with hash -854273631, now seen corresponding path program 6 times [2022-01-19 13:00:00,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:00,244 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1683093816] [2022-01-19 13:00:00,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:00,244 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:00,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:00,317 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 13:00:00,317 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:00,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1683093816] [2022-01-19 13:00:00,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1683093816] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:00,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:00,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:00,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893267892] [2022-01-19 13:00:00,318 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:00,318 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:00,318 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:00,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:00,320 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:00,321 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 460 transitions, 2806 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:00,321 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:00,321 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:00,321 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:01,421 INFO L129 PetriNetUnfolder]: 1414/6351 cut-off events. [2022-01-19 13:00:01,422 INFO L130 PetriNetUnfolder]: For 29087/29220 co-relation queries the response was YES. [2022-01-19 13:00:01,472 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21474 conditions, 6351 events. 1414/6351 cut-off events. For 29087/29220 co-relation queries the response was YES. Maximal size of possible extension queue 563. Compared 75858 event pairs, 586 based on Foata normal form. 5/6104 useless extension candidates. Maximal degree in co-relation 21365. Up to 1814 conditions per place. [2022-01-19 13:00:01,494 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 185 selfloop transitions, 76 changer transitions 16/528 dead transitions. [2022-01-19 13:00:01,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 452 places, 528 transitions, 4194 flow [2022-01-19 13:00:01,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:00:01,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:00:01,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 13:00:01,498 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 13:00:01,498 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 13:00:01,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 13:00:01,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:01,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 13:00:01,504 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:01,508 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:01,508 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:01,508 INFO L186 Difference]: Start difference. First operand has 438 places, 460 transitions, 2806 flow. Second operand 17 states and 4265 transitions. [2022-01-19 13:00:01,509 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 452 places, 528 transitions, 4194 flow [2022-01-19 13:00:01,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 449 places, 528 transitions, 3998 flow, removed 96 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:01,671 INFO L242 Difference]: Finished difference. Result has 460 places, 487 transitions, 3408 flow [2022-01-19 13:00:01,671 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=2640, PETRI_DIFFERENCE_MINUEND_PLACES=433, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=460, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=403, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=3408, PETRI_PLACES=460, PETRI_TRANSITIONS=487} [2022-01-19 13:00:01,672 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 204 predicate places. [2022-01-19 13:00:01,672 INFO L470 AbstractCegarLoop]: Abstraction has has 460 places, 487 transitions, 3408 flow [2022-01-19 13:00:01,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:01,673 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:01,673 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] [2022-01-19 13:00:01,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 13:00:01,673 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:01,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:01,673 INFO L85 PathProgramCache]: Analyzing trace with hash -1348829887, now seen corresponding path program 7 times [2022-01-19 13:00:01,673 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:01,673 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060682093] [2022-01-19 13:00:01,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:01,674 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:01,781 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 13:00:01,782 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:01,782 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060682093] [2022-01-19 13:00:01,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060682093] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:01,782 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:01,782 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:01,782 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374079307] [2022-01-19 13:00:01,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:01,782 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:01,782 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:01,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:01,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:01,784 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:01,786 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 460 places, 487 transitions, 3408 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:01,786 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:01,786 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:01,786 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:02,988 INFO L129 PetriNetUnfolder]: 1423/6554 cut-off events. [2022-01-19 13:00:02,988 INFO L130 PetriNetUnfolder]: For 37589/37775 co-relation queries the response was YES. [2022-01-19 13:00:03,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 22781 conditions, 6554 events. 1423/6554 cut-off events. For 37589/37775 co-relation queries the response was YES. Maximal size of possible extension queue 575. Compared 78659 event pairs, 594 based on Foata normal form. 24/6327 useless extension candidates. Maximal degree in co-relation 22663. Up to 1825 conditions per place. [2022-01-19 13:00:03,055 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 170 selfloop transitions, 98 changer transitions 23/542 dead transitions. [2022-01-19 13:00:03,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 475 places, 542 transitions, 4530 flow [2022-01-19 13:00:03,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:00:03,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:00:03,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 13:00:03,059 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 13:00:03,059 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 13:00:03,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 13:00:03,060 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:03,060 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 13:00:03,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:03,068 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:03,068 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:03,068 INFO L186 Difference]: Start difference. First operand has 460 places, 487 transitions, 3408 flow. Second operand 18 states and 4511 transitions. [2022-01-19 13:00:03,068 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 475 places, 542 transitions, 4530 flow [2022-01-19 13:00:03,256 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 473 places, 542 transitions, 4224 flow, removed 153 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:03,263 INFO L242 Difference]: Finished difference. Result has 481 places, 499 transitions, 3613 flow [2022-01-19 13:00:03,264 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3148, PETRI_DIFFERENCE_MINUEND_PLACES=456, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=487, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=396, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3613, PETRI_PLACES=481, PETRI_TRANSITIONS=499} [2022-01-19 13:00:03,265 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 225 predicate places. [2022-01-19 13:00:03,265 INFO L470 AbstractCegarLoop]: Abstraction has has 481 places, 499 transitions, 3613 flow [2022-01-19 13:00:03,265 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:03,265 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:03,266 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] [2022-01-19 13:00:03,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 13:00:03,266 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:03,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:03,266 INFO L85 PathProgramCache]: Analyzing trace with hash 1324436189, now seen corresponding path program 8 times [2022-01-19 13:00:03,266 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:03,266 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060218065] [2022-01-19 13:00:03,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:03,266 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:03,454 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 13:00:03,454 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:03,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060218065] [2022-01-19 13:00:03,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060218065] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:03,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:03,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:03,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131418288] [2022-01-19 13:00:03,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:03,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:03,457 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:03,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:03,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:03,459 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:03,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 481 places, 499 transitions, 3613 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:03,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:03,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:03,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:04,923 INFO L129 PetriNetUnfolder]: 1455/6847 cut-off events. [2022-01-19 13:00:04,923 INFO L130 PetriNetUnfolder]: For 41796/41938 co-relation queries the response was YES. [2022-01-19 13:00:04,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24229 conditions, 6847 events. 1455/6847 cut-off events. For 41796/41938 co-relation queries the response was YES. Maximal size of possible extension queue 617. Compared 84051 event pairs, 579 based on Foata normal form. 11/6607 useless extension candidates. Maximal degree in co-relation 24104. Up to 1825 conditions per place. [2022-01-19 13:00:04,991 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 215 selfloop transitions, 83 changer transitions 23/572 dead transitions. [2022-01-19 13:00:04,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 499 places, 572 transitions, 5227 flow [2022-01-19 13:00:04,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:00:04,991 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:00:04,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5261 transitions. [2022-01-19 13:00:04,994 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875957375957376 [2022-01-19 13:00:04,994 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5261 transitions. [2022-01-19 13:00:04,994 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5261 transitions. [2022-01-19 13:00:04,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:04,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5261 transitions. [2022-01-19 13:00:05,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.52380952380952) internal successors, (5261), 21 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:05,004 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:05,005 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:05,006 INFO L186 Difference]: Start difference. First operand has 481 places, 499 transitions, 3613 flow. Second operand 21 states and 5261 transitions. [2022-01-19 13:00:05,006 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 499 places, 572 transitions, 5227 flow [2022-01-19 13:00:05,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 496 places, 572 transitions, 5086 flow, removed 51 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:05,239 INFO L242 Difference]: Finished difference. Result has 510 places, 526 transitions, 4302 flow [2022-01-19 13:00:05,239 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=3482, PETRI_DIFFERENCE_MINUEND_PLACES=476, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=499, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=432, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=4302, PETRI_PLACES=510, PETRI_TRANSITIONS=526} [2022-01-19 13:00:05,240 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 254 predicate places. [2022-01-19 13:00:05,240 INFO L470 AbstractCegarLoop]: Abstraction has has 510 places, 526 transitions, 4302 flow [2022-01-19 13:00:05,240 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:05,240 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:05,240 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] [2022-01-19 13:00:05,240 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 13:00:05,240 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:05,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:05,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1929026691, now seen corresponding path program 9 times [2022-01-19 13:00:05,241 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:05,241 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718315297] [2022-01-19 13:00:05,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:05,241 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:05,321 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 13:00:05,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:05,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718315297] [2022-01-19 13:00:05,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718315297] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:05,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:05,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:05,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526089403] [2022-01-19 13:00:05,322 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:05,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:05,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:05,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:05,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:05,324 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:05,325 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 510 places, 526 transitions, 4302 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:05,325 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:05,325 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:05,325 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:06,699 INFO L129 PetriNetUnfolder]: 1500/7096 cut-off events. [2022-01-19 13:00:06,699 INFO L130 PetriNetUnfolder]: For 54862/55019 co-relation queries the response was YES. [2022-01-19 13:00:06,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 26457 conditions, 7096 events. 1500/7096 cut-off events. For 54862/55019 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 87331 event pairs, 522 based on Foata normal form. 4/6857 useless extension candidates. Maximal degree in co-relation 26319. Up to 1456 conditions per place. [2022-01-19 13:00:06,774 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 236 selfloop transitions, 133 changer transitions 26/646 dead transitions. [2022-01-19 13:00:06,775 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 531 places, 646 transitions, 6495 flow [2022-01-19 13:00:06,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:00:06,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:00:06,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6012 transitions. [2022-01-19 13:00:06,779 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8758741258741258 [2022-01-19 13:00:06,779 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6012 transitions. [2022-01-19 13:00:06,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6012 transitions. [2022-01-19 13:00:06,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:06,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6012 transitions. [2022-01-19 13:00:06,785 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.5) internal successors, (6012), 24 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:06,789 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:06,789 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:06,790 INFO L186 Difference]: Start difference. First operand has 510 places, 526 transitions, 4302 flow. Second operand 24 states and 6012 transitions. [2022-01-19 13:00:06,790 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 531 places, 646 transitions, 6495 flow [2022-01-19 13:00:07,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 529 places, 646 transitions, 6175 flow, removed 160 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:07,080 INFO L242 Difference]: Finished difference. Result has 548 places, 552 transitions, 5048 flow [2022-01-19 13:00:07,080 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=4052, PETRI_DIFFERENCE_MINUEND_PLACES=506, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=526, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=107, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=406, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=5048, PETRI_PLACES=548, PETRI_TRANSITIONS=552} [2022-01-19 13:00:07,081 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 292 predicate places. [2022-01-19 13:00:07,081 INFO L470 AbstractCegarLoop]: Abstraction has has 548 places, 552 transitions, 5048 flow [2022-01-19 13:00:07,081 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:07,081 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:07,082 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] [2022-01-19 13:00:07,082 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 13:00:07,082 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:07,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:07,082 INFO L85 PathProgramCache]: Analyzing trace with hash 625378761, now seen corresponding path program 10 times [2022-01-19 13:00:07,082 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:07,082 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2080994901] [2022-01-19 13:00:07,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:07,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:07,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:07,150 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 13:00:07,151 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:07,151 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2080994901] [2022-01-19 13:00:07,151 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2080994901] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:07,151 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:07,151 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:07,151 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424783056] [2022-01-19 13:00:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:07,151 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:07,151 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:07,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:07,153 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:07,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 548 places, 552 transitions, 5048 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:07,154 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:07,154 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:07,154 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:08,670 INFO L129 PetriNetUnfolder]: 1534/7181 cut-off events. [2022-01-19 13:00:08,671 INFO L130 PetriNetUnfolder]: For 63086/63258 co-relation queries the response was YES. [2022-01-19 13:00:08,747 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28394 conditions, 7181 events. 1534/7181 cut-off events. For 63086/63258 co-relation queries the response was YES. Maximal size of possible extension queue 654. Compared 88874 event pairs, 628 based on Foata normal form. 2/6918 useless extension candidates. Maximal degree in co-relation 28238. Up to 1963 conditions per place. [2022-01-19 13:00:08,763 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 242 selfloop transitions, 97 changer transitions 17/607 dead transitions. [2022-01-19 13:00:08,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 563 places, 607 transitions, 6620 flow [2022-01-19 13:00:08,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:00:08,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:00:08,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4515 transitions. [2022-01-19 13:00:08,766 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.877039627039627 [2022-01-19 13:00:08,766 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4515 transitions. [2022-01-19 13:00:08,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4515 transitions. [2022-01-19 13:00:08,767 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:08,767 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4515 transitions. [2022-01-19 13:00:08,770 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.83333333333334) internal successors, (4515), 18 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:08,773 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:08,773 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:08,773 INFO L186 Difference]: Start difference. First operand has 548 places, 552 transitions, 5048 flow. Second operand 18 states and 4515 transitions. [2022-01-19 13:00:08,774 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 563 places, 607 transitions, 6620 flow [2022-01-19 13:00:09,286 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 559 places, 607 transitions, 6387 flow, removed 90 selfloop flow, removed 4 redundant places. [2022-01-19 13:00:09,292 INFO L242 Difference]: Finished difference. Result has 567 places, 571 transitions, 5594 flow [2022-01-19 13:00:09,293 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=4836, PETRI_DIFFERENCE_MINUEND_PLACES=542, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=552, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=469, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5594, PETRI_PLACES=567, PETRI_TRANSITIONS=571} [2022-01-19 13:00:09,293 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 311 predicate places. [2022-01-19 13:00:09,293 INFO L470 AbstractCegarLoop]: Abstraction has has 567 places, 571 transitions, 5594 flow [2022-01-19 13:00:09,294 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:09,294 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:09,294 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] [2022-01-19 13:00:09,294 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 13:00:09,294 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:09,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:09,294 INFO L85 PathProgramCache]: Analyzing trace with hash 804127363, now seen corresponding path program 11 times [2022-01-19 13:00:09,294 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:09,294 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [199942646] [2022-01-19 13:00:09,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:09,295 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:09,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:09,371 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 13:00:09,371 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:09,371 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [199942646] [2022-01-19 13:00:09,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [199942646] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:09,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:09,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:09,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837059821] [2022-01-19 13:00:09,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:09,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:09,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:09,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:09,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:09,374 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:09,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 567 places, 571 transitions, 5594 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:09,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:09,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:09,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:10,916 INFO L129 PetriNetUnfolder]: 1540/7388 cut-off events. [2022-01-19 13:00:10,917 INFO L130 PetriNetUnfolder]: For 57855/58015 co-relation queries the response was YES. [2022-01-19 13:00:10,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28889 conditions, 7388 events. 1540/7388 cut-off events. For 57855/58015 co-relation queries the response was YES. Maximal size of possible extension queue 679. Compared 92344 event pairs, 601 based on Foata normal form. 11/7143 useless extension candidates. Maximal degree in co-relation 28727. Up to 2002 conditions per place. [2022-01-19 13:00:11,017 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 241 selfloop transitions, 105 changer transitions 19/616 dead transitions. [2022-01-19 13:00:11,017 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 581 places, 616 transitions, 6936 flow [2022-01-19 13:00:11,017 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:00:11,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:00:11,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 13:00:11,020 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 13:00:11,020 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 13:00:11,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 13:00:11,021 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:11,021 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 13:00:11,025 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:11,028 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:11,028 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:11,028 INFO L186 Difference]: Start difference. First operand has 567 places, 571 transitions, 5594 flow. Second operand 17 states and 4265 transitions. [2022-01-19 13:00:11,028 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 581 places, 616 transitions, 6936 flow [2022-01-19 13:00:11,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 578 places, 616 transitions, 6665 flow, removed 134 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:11,468 INFO L242 Difference]: Finished difference. Result has 585 places, 585 transitions, 5908 flow [2022-01-19 13:00:11,468 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=5337, PETRI_DIFFERENCE_MINUEND_PLACES=562, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=571, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=475, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=5908, PETRI_PLACES=585, PETRI_TRANSITIONS=585} [2022-01-19 13:00:11,469 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 329 predicate places. [2022-01-19 13:00:11,469 INFO L470 AbstractCegarLoop]: Abstraction has has 585 places, 585 transitions, 5908 flow [2022-01-19 13:00:11,469 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:11,469 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:11,469 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] [2022-01-19 13:00:11,470 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 13:00:11,470 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:11,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:11,470 INFO L85 PathProgramCache]: Analyzing trace with hash -1401213629, now seen corresponding path program 12 times [2022-01-19 13:00:11,470 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:11,470 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219610240] [2022-01-19 13:00:11,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:11,470 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:11,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:11,565 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 13:00:11,565 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:11,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219610240] [2022-01-19 13:00:11,565 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219610240] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:11,565 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:11,565 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:11,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91492793] [2022-01-19 13:00:11,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:11,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:11,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:11,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:11,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:11,568 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:11,569 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 585 places, 585 transitions, 5908 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:11,569 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:11,569 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:11,569 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:13,277 INFO L129 PetriNetUnfolder]: 1578/7867 cut-off events. [2022-01-19 13:00:13,277 INFO L130 PetriNetUnfolder]: For 60699/60859 co-relation queries the response was YES. [2022-01-19 13:00:13,363 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30554 conditions, 7867 events. 1578/7867 cut-off events. For 60699/60859 co-relation queries the response was YES. Maximal size of possible extension queue 731. Compared 100709 event pairs, 614 based on Foata normal form. 11/7616 useless extension candidates. Maximal degree in co-relation 30387. Up to 2039 conditions per place. [2022-01-19 13:00:13,380 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 231 selfloop transitions, 143 changer transitions 19/644 dead transitions. [2022-01-19 13:00:13,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 602 places, 644 transitions, 7502 flow [2022-01-19 13:00:13,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:00:13,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:00:13,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5008 transitions. [2022-01-19 13:00:13,383 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8755244755244755 [2022-01-19 13:00:13,383 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5008 transitions. [2022-01-19 13:00:13,383 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5008 transitions. [2022-01-19 13:00:13,384 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:13,384 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5008 transitions. [2022-01-19 13:00:13,388 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.4) internal successors, (5008), 20 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:13,395 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:13,395 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:13,395 INFO L186 Difference]: Start difference. First operand has 585 places, 585 transitions, 5908 flow. Second operand 20 states and 5008 transitions. [2022-01-19 13:00:13,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 602 places, 644 transitions, 7502 flow [2022-01-19 13:00:13,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 599 places, 644 transitions, 7338 flow, removed 55 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:13,978 INFO L242 Difference]: Finished difference. Result has 610 places, 605 transitions, 6606 flow [2022-01-19 13:00:13,978 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=5760, PETRI_DIFFERENCE_MINUEND_PLACES=580, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=585, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=123, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=454, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6606, PETRI_PLACES=610, PETRI_TRANSITIONS=605} [2022-01-19 13:00:13,979 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 354 predicate places. [2022-01-19 13:00:13,979 INFO L470 AbstractCegarLoop]: Abstraction has has 610 places, 605 transitions, 6606 flow [2022-01-19 13:00:13,979 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:13,979 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:13,979 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] [2022-01-19 13:00:13,979 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 13:00:13,979 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:13,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:13,980 INFO L85 PathProgramCache]: Analyzing trace with hash -1933410467, now seen corresponding path program 13 times [2022-01-19 13:00:13,980 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:13,980 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1404729765] [2022-01-19 13:00:13,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:13,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:13,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:14,054 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 13:00:14,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:14,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1404729765] [2022-01-19 13:00:14,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1404729765] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:14,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:14,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:14,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185007787] [2022-01-19 13:00:14,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:14,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:14,056 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:14,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:14,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:14,058 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:14,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 610 places, 605 transitions, 6606 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:14,059 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:14,059 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:14,059 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:15,997 INFO L129 PetriNetUnfolder]: 1575/7784 cut-off events. [2022-01-19 13:00:15,998 INFO L130 PetriNetUnfolder]: For 64655/64815 co-relation queries the response was YES. [2022-01-19 13:00:16,081 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31003 conditions, 7784 events. 1575/7784 cut-off events. For 64655/64815 co-relation queries the response was YES. Maximal size of possible extension queue 723. Compared 99073 event pairs, 614 based on Foata normal form. 11/7534 useless extension candidates. Maximal degree in co-relation 30827. Up to 2046 conditions per place. [2022-01-19 13:00:16,097 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 238 selfloop transitions, 134 changer transitions 22/645 dead transitions. [2022-01-19 13:00:16,097 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 625 places, 645 transitions, 7839 flow [2022-01-19 13:00:16,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:00:16,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:00:16,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 13:00:16,100 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 13:00:16,100 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 13:00:16,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 13:00:16,101 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:16,101 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 13:00:16,104 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:16,107 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:16,107 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:16,107 INFO L186 Difference]: Start difference. First operand has 610 places, 605 transitions, 6606 flow. Second operand 18 states and 4511 transitions. [2022-01-19 13:00:16,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 625 places, 645 transitions, 7839 flow [2022-01-19 13:00:16,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 622 places, 645 transitions, 7609 flow, removed 88 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:16,648 INFO L242 Difference]: Finished difference. Result has 629 places, 614 transitions, 6933 flow [2022-01-19 13:00:16,648 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=6408, PETRI_DIFFERENCE_MINUEND_PLACES=605, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=605, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=474, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6933, PETRI_PLACES=629, PETRI_TRANSITIONS=614} [2022-01-19 13:00:16,648 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 373 predicate places. [2022-01-19 13:00:16,649 INFO L470 AbstractCegarLoop]: Abstraction has has 629 places, 614 transitions, 6933 flow [2022-01-19 13:00:16,649 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:16,649 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:16,649 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] [2022-01-19 13:00:16,649 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 13:00:16,649 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:16,650 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:16,650 INFO L85 PathProgramCache]: Analyzing trace with hash -371423587, now seen corresponding path program 14 times [2022-01-19 13:00:16,650 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:16,650 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468287925] [2022-01-19 13:00:16,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:16,650 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:16,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:16,728 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 13:00:16,729 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:16,729 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468287925] [2022-01-19 13:00:16,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468287925] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:16,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:16,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:16,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030209158] [2022-01-19 13:00:16,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:16,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:16,730 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:16,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:16,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:16,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:16,733 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 629 places, 614 transitions, 6933 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:16,733 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:16,733 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:16,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:18,553 INFO L129 PetriNetUnfolder]: 1610/7909 cut-off events. [2022-01-19 13:00:18,553 INFO L130 PetriNetUnfolder]: For 64491/64651 co-relation queries the response was YES. [2022-01-19 13:00:18,645 INFO L84 FinitePrefix]: Finished finitePrefix Result has 32018 conditions, 7909 events. 1610/7909 cut-off events. For 64491/64651 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 101060 event pairs, 601 based on Foata normal form. 4/7655 useless extension candidates. Maximal degree in co-relation 31837. Up to 2020 conditions per place. [2022-01-19 13:00:18,662 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 307 selfloop transitions, 110 changer transitions 23/691 dead transitions. [2022-01-19 13:00:18,662 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 646 places, 691 transitions, 8943 flow [2022-01-19 13:00:18,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:00:18,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:00:18,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5012 transitions. [2022-01-19 13:00:18,665 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762237762237762 [2022-01-19 13:00:18,665 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5012 transitions. [2022-01-19 13:00:18,665 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5012 transitions. [2022-01-19 13:00:18,666 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:18,666 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5012 transitions. [2022-01-19 13:00:18,669 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.6) internal successors, (5012), 20 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:18,672 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:18,672 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:18,672 INFO L186 Difference]: Start difference. First operand has 629 places, 614 transitions, 6933 flow. Second operand 20 states and 5012 transitions. [2022-01-19 13:00:18,672 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 646 places, 691 transitions, 8943 flow [2022-01-19 13:00:19,198 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 643 places, 691 transitions, 8795 flow, removed 45 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:19,206 INFO L242 Difference]: Finished difference. Result has 657 places, 641 transitions, 7750 flow [2022-01-19 13:00:19,206 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=6791, PETRI_DIFFERENCE_MINUEND_PLACES=624, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=614, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=523, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=7750, PETRI_PLACES=657, PETRI_TRANSITIONS=641} [2022-01-19 13:00:19,207 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 401 predicate places. [2022-01-19 13:00:19,207 INFO L470 AbstractCegarLoop]: Abstraction has has 657 places, 641 transitions, 7750 flow [2022-01-19 13:00:19,207 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:19,207 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:19,207 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] [2022-01-19 13:00:19,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 13:00:19,207 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:19,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:19,208 INFO L85 PathProgramCache]: Analyzing trace with hash -1634434539, now seen corresponding path program 15 times [2022-01-19 13:00:19,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:19,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2094228299] [2022-01-19 13:00:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:19,208 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:19,288 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 13:00:19,288 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:19,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2094228299] [2022-01-19 13:00:19,288 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2094228299] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:19,288 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:19,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:19,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188295434] [2022-01-19 13:00:19,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:19,289 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:19,289 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:19,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:19,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:19,291 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:19,292 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 657 places, 641 transitions, 7750 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:19,292 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:19,292 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:19,292 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:21,471 INFO L129 PetriNetUnfolder]: 1646/8326 cut-off events. [2022-01-19 13:00:21,471 INFO L130 PetriNetUnfolder]: For 76832/76992 co-relation queries the response was YES. [2022-01-19 13:00:21,561 INFO L84 FinitePrefix]: Finished finitePrefix Result has 34290 conditions, 8326 events. 1646/8326 cut-off events. For 76832/76992 co-relation queries the response was YES. Maximal size of possible extension queue 788. Compared 108232 event pairs, 602 based on Foata normal form. 4/8079 useless extension candidates. Maximal degree in co-relation 34097. Up to 2022 conditions per place. [2022-01-19 13:00:21,578 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 270 selfloop transitions, 162 changer transitions 23/706 dead transitions. [2022-01-19 13:00:21,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 676 places, 706 transitions, 9565 flow [2022-01-19 13:00:21,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:00:21,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:00:21,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5505 transitions. [2022-01-19 13:00:21,580 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8749205340114431 [2022-01-19 13:00:21,580 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5505 transitions. [2022-01-19 13:00:21,580 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5505 transitions. [2022-01-19 13:00:21,581 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:21,581 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5505 transitions. [2022-01-19 13:00:21,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.22727272727272) internal successors, (5505), 22 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:21,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:21,588 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:21,588 INFO L186 Difference]: Start difference. First operand has 657 places, 641 transitions, 7750 flow. Second operand 22 states and 5505 transitions. [2022-01-19 13:00:21,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 676 places, 706 transitions, 9565 flow [2022-01-19 13:00:22,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 673 places, 706 transitions, 9157 flow, removed 174 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:22,232 INFO L242 Difference]: Finished difference. Result has 685 places, 665 transitions, 8427 flow [2022-01-19 13:00:22,232 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=7456, PETRI_DIFFERENCE_MINUEND_PLACES=652, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=641, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=140, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=493, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=8427, PETRI_PLACES=685, PETRI_TRANSITIONS=665} [2022-01-19 13:00:22,233 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 429 predicate places. [2022-01-19 13:00:22,233 INFO L470 AbstractCegarLoop]: Abstraction has has 685 places, 665 transitions, 8427 flow [2022-01-19 13:00:22,233 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:22,233 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:22,233 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] [2022-01-19 13:00:22,233 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 13:00:22,233 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:22,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:22,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1823746883, now seen corresponding path program 16 times [2022-01-19 13:00:22,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:22,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1545675259] [2022-01-19 13:00:22,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:22,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:22,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:22,298 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 13:00:22,298 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:22,298 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1545675259] [2022-01-19 13:00:22,298 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1545675259] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:22,298 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:22,299 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:22,299 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1096812570] [2022-01-19 13:00:22,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:22,299 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:22,299 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:22,299 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:22,299 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:22,301 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:22,301 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 685 places, 665 transitions, 8427 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:22,301 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:22,301 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:22,302 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:24,318 INFO L129 PetriNetUnfolder]: 1681/8660 cut-off events. [2022-01-19 13:00:24,318 INFO L130 PetriNetUnfolder]: For 80024/80184 co-relation queries the response was YES. [2022-01-19 13:00:24,440 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35589 conditions, 8660 events. 1681/8660 cut-off events. For 80024/80184 co-relation queries the response was YES. Maximal size of possible extension queue 825. Compared 113685 event pairs, 609 based on Foata normal form. 4/8406 useless extension candidates. Maximal degree in co-relation 35386. Up to 2106 conditions per place. [2022-01-19 13:00:24,460 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 321 selfloop transitions, 131 changer transitions 16/719 dead transitions. [2022-01-19 13:00:24,461 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 699 places, 719 transitions, 10185 flow [2022-01-19 13:00:24,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:00:24,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:00:24,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4264 transitions. [2022-01-19 13:00:24,464 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8770053475935828 [2022-01-19 13:00:24,464 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4264 transitions. [2022-01-19 13:00:24,464 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4264 transitions. [2022-01-19 13:00:24,464 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:24,464 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4264 transitions. [2022-01-19 13:00:24,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.8235294117647) internal successors, (4264), 17 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:24,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:24,469 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:24,470 INFO L186 Difference]: Start difference. First operand has 685 places, 665 transitions, 8427 flow. Second operand 17 states and 4264 transitions. [2022-01-19 13:00:24,470 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 699 places, 719 transitions, 10185 flow [2022-01-19 13:00:25,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 695 places, 719 transitions, 9971 flow, removed 104 selfloop flow, removed 4 redundant places. [2022-01-19 13:00:25,368 INFO L242 Difference]: Finished difference. Result has 704 places, 685 transitions, 9050 flow [2022-01-19 13:00:25,369 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=8217, PETRI_DIFFERENCE_MINUEND_PLACES=679, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=665, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=548, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=9050, PETRI_PLACES=704, PETRI_TRANSITIONS=685} [2022-01-19 13:00:25,369 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 448 predicate places. [2022-01-19 13:00:25,369 INFO L470 AbstractCegarLoop]: Abstraction has has 704 places, 685 transitions, 9050 flow [2022-01-19 13:00:25,370 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:25,370 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:25,370 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] [2022-01-19 13:00:25,370 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 13:00:25,370 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:25,370 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:25,370 INFO L85 PathProgramCache]: Analyzing trace with hash -1612718341, now seen corresponding path program 17 times [2022-01-19 13:00:25,370 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:25,370 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1309181422] [2022-01-19 13:00:25,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:25,371 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:25,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:25,464 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 13:00:25,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:25,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1309181422] [2022-01-19 13:00:25,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1309181422] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:25,464 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:25,464 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:25,464 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2029097979] [2022-01-19 13:00:25,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:25,465 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:25,465 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:25,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:25,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:25,466 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:25,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 704 places, 685 transitions, 9050 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:25,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:25,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:25,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:27,621 INFO L129 PetriNetUnfolder]: 1715/8923 cut-off events. [2022-01-19 13:00:27,621 INFO L130 PetriNetUnfolder]: For 84428/84588 co-relation queries the response was YES. [2022-01-19 13:00:27,735 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37177 conditions, 8923 events. 1715/8923 cut-off events. For 84428/84588 co-relation queries the response was YES. Maximal size of possible extension queue 855. Compared 118154 event pairs, 603 based on Foata normal form. 4/8669 useless extension candidates. Maximal degree in co-relation 36968. Up to 2063 conditions per place. [2022-01-19 13:00:27,753 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 341 selfloop transitions, 134 changer transitions 21/747 dead transitions. [2022-01-19 13:00:27,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 722 places, 747 transitions, 10970 flow [2022-01-19 13:00:27,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:00:27,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:00:27,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5258 transitions. [2022-01-19 13:00:27,756 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8754578754578755 [2022-01-19 13:00:27,756 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5258 transitions. [2022-01-19 13:00:27,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5258 transitions. [2022-01-19 13:00:27,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:27,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5258 transitions. [2022-01-19 13:00:27,759 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.38095238095238) internal successors, (5258), 21 states have internal predecessors, (5258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:27,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:27,762 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:27,762 INFO L186 Difference]: Start difference. First operand has 704 places, 685 transitions, 9050 flow. Second operand 21 states and 5258 transitions. [2022-01-19 13:00:27,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 722 places, 747 transitions, 10970 flow [2022-01-19 13:00:28,485 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 719 places, 747 transitions, 10773 flow, removed 97 selfloop flow, removed 3 redundant places. [2022-01-19 13:00:28,494 INFO L242 Difference]: Finished difference. Result has 730 places, 707 transitions, 9782 flow [2022-01-19 13:00:28,494 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=8857, PETRI_DIFFERENCE_MINUEND_PLACES=699, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=685, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=113, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=564, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=9782, PETRI_PLACES=730, PETRI_TRANSITIONS=707} [2022-01-19 13:00:28,495 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 474 predicate places. [2022-01-19 13:00:28,495 INFO L470 AbstractCegarLoop]: Abstraction has has 730 places, 707 transitions, 9782 flow [2022-01-19 13:00:28,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:28,495 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:28,495 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] [2022-01-19 13:00:28,495 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 13:00:28,495 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:28,496 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:28,496 INFO L85 PathProgramCache]: Analyzing trace with hash 244749245, now seen corresponding path program 18 times [2022-01-19 13:00:28,496 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:28,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439834126] [2022-01-19 13:00:28,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:28,496 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:28,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:28,551 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 13:00:28,552 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:28,552 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439834126] [2022-01-19 13:00:28,552 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439834126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:28,552 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:28,552 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:28,552 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [990990764] [2022-01-19 13:00:28,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:28,552 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:28,552 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:28,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:28,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:28,554 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:28,555 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 730 places, 707 transitions, 9782 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:28,555 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:28,555 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:28,555 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:30,984 INFO L129 PetriNetUnfolder]: 1718/9061 cut-off events. [2022-01-19 13:00:30,984 INFO L130 PetriNetUnfolder]: For 88072/88232 co-relation queries the response was YES. [2022-01-19 13:00:31,105 INFO L84 FinitePrefix]: Finished finitePrefix Result has 37998 conditions, 9061 events. 1718/9061 cut-off events. For 88072/88232 co-relation queries the response was YES. Maximal size of possible extension queue 868. Compared 120556 event pairs, 610 based on Foata normal form. 4/8815 useless extension candidates. Maximal degree in co-relation 37780. Up to 2176 conditions per place. [2022-01-19 13:00:31,123 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 298 selfloop transitions, 181 changer transitions 22/752 dead transitions. [2022-01-19 13:00:31,123 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 743 places, 752 transitions, 11237 flow [2022-01-19 13:00:31,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 13:00:31,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 13:00:31,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4017 transitions. [2022-01-19 13:00:31,125 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778409090909091 [2022-01-19 13:00:31,125 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4017 transitions. [2022-01-19 13:00:31,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4017 transitions. [2022-01-19 13:00:31,126 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:31,126 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4017 transitions. [2022-01-19 13:00:31,128 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 251.0625) internal successors, (4017), 16 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:31,130 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:31,130 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:31,130 INFO L186 Difference]: Start difference. First operand has 730 places, 707 transitions, 9782 flow. Second operand 16 states and 4017 transitions. [2022-01-19 13:00:31,130 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 743 places, 752 transitions, 11237 flow [2022-01-19 13:00:31,889 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 739 places, 752 transitions, 11004 flow, removed 107 selfloop flow, removed 4 redundant places. [2022-01-19 13:00:31,898 INFO L242 Difference]: Finished difference. Result has 746 places, 715 transitions, 10163 flow [2022-01-19 13:00:31,899 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=9562, PETRI_DIFFERENCE_MINUEND_PLACES=724, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=707, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=173, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=530, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=10163, PETRI_PLACES=746, PETRI_TRANSITIONS=715} [2022-01-19 13:00:31,899 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 490 predicate places. [2022-01-19 13:00:31,899 INFO L470 AbstractCegarLoop]: Abstraction has has 746 places, 715 transitions, 10163 flow [2022-01-19 13:00:31,900 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:31,900 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:31,900 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] [2022-01-19 13:00:31,900 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 13:00:31,900 INFO L402 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:31,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:31,900 INFO L85 PathProgramCache]: Analyzing trace with hash -1572504923, now seen corresponding path program 19 times [2022-01-19 13:00:31,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:31,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89381363] [2022-01-19 13:00:31,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:31,901 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:31,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:31,968 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 13:00:31,968 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:31,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89381363] [2022-01-19 13:00:31,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89381363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:31,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:31,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:31,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [546118650] [2022-01-19 13:00:31,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:31,969 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:31,969 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:31,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:31,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:31,970 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:31,971 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 746 places, 715 transitions, 10163 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:31,971 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:31,971 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:31,971 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:34,534 INFO L129 PetriNetUnfolder]: 1723/9109 cut-off events. [2022-01-19 13:00:34,535 INFO L130 PetriNetUnfolder]: For 86759/86919 co-relation queries the response was YES. [2022-01-19 13:00:34,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38646 conditions, 9109 events. 1723/9109 cut-off events. For 86759/86919 co-relation queries the response was YES. Maximal size of possible extension queue 875. Compared 121391 event pairs, 618 based on Foata normal form. 4/8854 useless extension candidates. Maximal degree in co-relation 38424. Up to 2183 conditions per place. [2022-01-19 13:00:34,666 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 352 selfloop transitions, 135 changer transitions 21/759 dead transitions. [2022-01-19 13:00:34,666 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 761 places, 759 transitions, 11710 flow [2022-01-19 13:00:34,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:00:34,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:00:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 13:00:34,668 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 13:00:34,668 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 13:00:34,668 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 13:00:34,669 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:34,669 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 13:00:34,671 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:34,673 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:34,674 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:34,674 INFO L186 Difference]: Start difference. First operand has 746 places, 715 transitions, 10163 flow. Second operand 18 states and 4514 transitions. [2022-01-19 13:00:34,674 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 761 places, 759 transitions, 11710 flow [2022-01-19 13:00:35,439 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 756 places, 759 transitions, 11362 flow, removed 59 selfloop flow, removed 5 redundant places. [2022-01-19 13:00:35,449 INFO L242 Difference]: Finished difference. Result has 763 places, 727 transitions, 10454 flow [2022-01-19 13:00:35,450 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=9833, PETRI_DIFFERENCE_MINUEND_PLACES=739, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=715, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=125, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=586, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10454, PETRI_PLACES=763, PETRI_TRANSITIONS=727} [2022-01-19 13:00:35,450 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 507 predicate places. [2022-01-19 13:00:35,450 INFO L470 AbstractCegarLoop]: Abstraction has has 763 places, 727 transitions, 10454 flow [2022-01-19 13:00:35,451 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:35,451 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:35,451 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] [2022-01-19 13:00:35,451 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 13:00:35,451 INFO L402 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:35,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:35,452 INFO L85 PathProgramCache]: Analyzing trace with hash -993370193, now seen corresponding path program 20 times [2022-01-19 13:00:35,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:35,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [175872223] [2022-01-19 13:00:35,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:35,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:35,521 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 13:00:35,521 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:35,521 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [175872223] [2022-01-19 13:00:35,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [175872223] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:35,521 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:35,521 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:35,521 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761715768] [2022-01-19 13:00:35,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:35,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:35,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:35,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:35,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:35,523 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:35,524 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 763 places, 727 transitions, 10454 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:35,524 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:35,524 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:35,524 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:37,853 INFO L129 PetriNetUnfolder]: 1723/9092 cut-off events. [2022-01-19 13:00:37,853 INFO L130 PetriNetUnfolder]: For 86517/86677 co-relation queries the response was YES. [2022-01-19 13:00:37,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38495 conditions, 9092 events. 1723/9092 cut-off events. For 86517/86677 co-relation queries the response was YES. Maximal size of possible extension queue 872. Compared 120944 event pairs, 614 based on Foata normal form. 4/8843 useless extension candidates. Maximal degree in co-relation 38273. Up to 2193 conditions per place. [2022-01-19 13:00:38,156 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 339 selfloop transitions, 152 changer transitions 28/769 dead transitions. [2022-01-19 13:00:38,157 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 778 places, 769 transitions, 11926 flow [2022-01-19 13:00:38,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:00:38,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:00:38,160 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 13:00:38,161 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 13:00:38,161 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 13:00:38,161 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 13:00:38,162 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:38,162 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 13:00:38,165 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:38,167 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:38,167 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:38,167 INFO L186 Difference]: Start difference. First operand has 763 places, 727 transitions, 10454 flow. Second operand 18 states and 4514 transitions. [2022-01-19 13:00:38,167 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 778 places, 769 transitions, 11926 flow [2022-01-19 13:00:38,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 776 places, 769 transitions, 11812 flow, removed 57 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:38,970 INFO L242 Difference]: Finished difference. Result has 783 places, 735 transitions, 10935 flow [2022-01-19 13:00:38,970 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10342, PETRI_DIFFERENCE_MINUEND_PLACES=759, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=578, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=10935, PETRI_PLACES=783, PETRI_TRANSITIONS=735} [2022-01-19 13:00:38,970 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 527 predicate places. [2022-01-19 13:00:38,971 INFO L470 AbstractCegarLoop]: Abstraction has has 783 places, 735 transitions, 10935 flow [2022-01-19 13:00:38,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:38,971 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:38,971 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] [2022-01-19 13:00:38,971 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 13:00:38,982 INFO L402 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:38,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:38,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1797839325, now seen corresponding path program 1 times [2022-01-19 13:00:38,982 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:38,982 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718337029] [2022-01-19 13:00:38,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:38,983 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:39,029 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 13:00:39,029 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:39,029 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718337029] [2022-01-19 13:00:39,029 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718337029] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:39,030 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:39,030 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 13:00:39,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62309539] [2022-01-19 13:00:39,031 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:39,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 13:00:39,031 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:39,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 13:00:39,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 13:00:39,032 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 253 out of 286 [2022-01-19 13:00:39,033 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 783 places, 735 transitions, 10935 flow. Second operand has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:39,033 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:39,033 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 253 of 286 [2022-01-19 13:00:39,033 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:40,320 INFO L129 PetriNetUnfolder]: 659/6002 cut-off events. [2022-01-19 13:00:40,321 INFO L130 PetriNetUnfolder]: For 53722/54429 co-relation queries the response was YES. [2022-01-19 13:00:40,411 INFO L84 FinitePrefix]: Finished finitePrefix Result has 23035 conditions, 6002 events. 659/6002 cut-off events. For 53722/54429 co-relation queries the response was YES. Maximal size of possible extension queue 400. Compared 77484 event pairs, 35 based on Foata normal form. 25/5848 useless extension candidates. Maximal degree in co-relation 22817. Up to 312 conditions per place. [2022-01-19 13:00:40,420 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 20 selfloop transitions, 0 changer transitions 25/755 dead transitions. [2022-01-19 13:00:40,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 789 places, 755 transitions, 11076 flow [2022-01-19 13:00:40,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 13:00:40,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 13:00:40,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2320 transitions. [2022-01-19 13:00:40,422 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9013209013209014 [2022-01-19 13:00:40,422 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2320 transitions. [2022-01-19 13:00:40,422 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2320 transitions. [2022-01-19 13:00:40,422 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:40,422 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2320 transitions. [2022-01-19 13:00:40,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 257.77777777777777) internal successors, (2320), 9 states have internal predecessors, (2320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:40,425 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:40,425 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 286.0) internal successors, (2860), 10 states have internal predecessors, (2860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:40,425 INFO L186 Difference]: Start difference. First operand has 783 places, 735 transitions, 10935 flow. Second operand 9 states and 2320 transitions. [2022-01-19 13:00:40,425 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 789 places, 755 transitions, 11076 flow [2022-01-19 13:00:40,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 785 places, 755 transitions, 10877 flow, removed 62 selfloop flow, removed 4 redundant places. [2022-01-19 13:00:40,939 INFO L242 Difference]: Finished difference. Result has 791 places, 730 transitions, 10729 flow [2022-01-19 13:00:40,940 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10736, PETRI_DIFFERENCE_MINUEND_PLACES=777, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=735, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=735, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=10729, PETRI_PLACES=791, PETRI_TRANSITIONS=730} [2022-01-19 13:00:40,940 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 535 predicate places. [2022-01-19 13:00:40,940 INFO L470 AbstractCegarLoop]: Abstraction has has 791 places, 730 transitions, 10729 flow [2022-01-19 13:00:40,941 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 255.85714285714286) internal successors, (1791), 7 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:40,941 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:40,941 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] [2022-01-19 13:00:40,941 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 13:00:40,941 INFO L402 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:40,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:40,941 INFO L85 PathProgramCache]: Analyzing trace with hash 356499216, now seen corresponding path program 1 times [2022-01-19 13:00:40,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:40,941 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634082891] [2022-01-19 13:00:40,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:40,941 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:41,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:41,133 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 13:00:41,134 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:41,134 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634082891] [2022-01-19 13:00:41,134 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1634082891] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:41,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:41,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 13:00:41,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63149563] [2022-01-19 13:00:41,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:41,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 13:00:41,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:41,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 13:00:41,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-19 13:00:41,136 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 286 [2022-01-19 13:00:41,142 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 791 places, 730 transitions, 10729 flow. Second operand has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 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 13:00:41,142 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:41,142 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 286 [2022-01-19 13:00:41,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:42,115 INFO L129 PetriNetUnfolder]: 479/4086 cut-off events. [2022-01-19 13:00:42,116 INFO L130 PetriNetUnfolder]: For 35786/36082 co-relation queries the response was YES. [2022-01-19 13:00:42,165 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15554 conditions, 4086 events. 479/4086 cut-off events. For 35786/36082 co-relation queries the response was YES. Maximal size of possible extension queue 274. Compared 49058 event pairs, 35 based on Foata normal form. 10/3954 useless extension candidates. Maximal degree in co-relation 15343. Up to 222 conditions per place. [2022-01-19 13:00:42,173 INFO L132 encePairwiseOnDemand]: 274/286 looper letters, 27 selfloop transitions, 1 changer transitions 32/762 dead transitions. [2022-01-19 13:00:42,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 794 places, 762 transitions, 10946 flow [2022-01-19 13:00:42,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 13:00:42,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 13:00:42,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 3271 transitions. [2022-01-19 13:00:42,175 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8797740720817644 [2022-01-19 13:00:42,175 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 3271 transitions. [2022-01-19 13:00:42,175 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 3271 transitions. [2022-01-19 13:00:42,175 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:42,175 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 3271 transitions. [2022-01-19 13:00:42,177 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 251.6153846153846) internal successors, (3271), 13 states have internal predecessors, (3271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:42,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:42,179 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 286.0) internal successors, (4004), 14 states have internal predecessors, (4004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:42,179 INFO L186 Difference]: Start difference. First operand has 791 places, 730 transitions, 10729 flow. Second operand 13 states and 3271 transitions. [2022-01-19 13:00:42,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 794 places, 762 transitions, 10946 flow [2022-01-19 13:00:42,550 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 768 places, 762 transitions, 10830 flow, removed 31 selfloop flow, removed 26 redundant places. [2022-01-19 13:00:42,559 INFO L242 Difference]: Finished difference. Result has 779 places, 730 transitions, 10646 flow [2022-01-19 13:00:42,560 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10621, PETRI_DIFFERENCE_MINUEND_PLACES=756, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=729, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=10646, PETRI_PLACES=779, PETRI_TRANSITIONS=730} [2022-01-19 13:00:42,560 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 523 predicate places. [2022-01-19 13:00:42,560 INFO L470 AbstractCegarLoop]: Abstraction has has 779 places, 730 transitions, 10646 flow [2022-01-19 13:00:42,560 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 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 13:00:42,560 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:42,560 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] [2022-01-19 13:00:42,561 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 13:00:42,561 INFO L402 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:42,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:42,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1720911886, now seen corresponding path program 1 times [2022-01-19 13:00:42,561 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:42,561 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051495321] [2022-01-19 13:00:42,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:42,561 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:42,626 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 13:00:42,626 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:42,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051495321] [2022-01-19 13:00:42,626 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1051495321] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:42,626 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:42,626 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:42,626 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566041345] [2022-01-19 13:00:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:42,627 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:42,627 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:42,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:42,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:42,629 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:42,629 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 779 places, 730 transitions, 10646 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:42,629 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:42,630 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:42,630 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:44,297 INFO L129 PetriNetUnfolder]: 1174/6241 cut-off events. [2022-01-19 13:00:44,298 INFO L130 PetriNetUnfolder]: For 52447/52578 co-relation queries the response was YES. [2022-01-19 13:00:44,391 INFO L84 FinitePrefix]: Finished finitePrefix Result has 24305 conditions, 6241 events. 1174/6241 cut-off events. For 52447/52578 co-relation queries the response was YES. Maximal size of possible extension queue 477. Compared 77746 event pairs, 412 based on Foata normal form. 18/6090 useless extension candidates. Maximal degree in co-relation 24108. Up to 1878 conditions per place. [2022-01-19 13:00:44,404 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 375 selfloop transitions, 30 changer transitions 28/844 dead transitions. [2022-01-19 13:00:44,404 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 792 places, 844 transitions, 12137 flow [2022-01-19 13:00:44,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:00:44,404 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:00:44,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6015 transitions. [2022-01-19 13:00:44,407 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8763111888111889 [2022-01-19 13:00:44,407 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6015 transitions. [2022-01-19 13:00:44,407 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6015 transitions. [2022-01-19 13:00:44,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:44,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6015 transitions. [2022-01-19 13:00:44,410 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.625) internal successors, (6015), 24 states have internal predecessors, (6015), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:44,413 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:44,413 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:44,413 INFO L186 Difference]: Start difference. First operand has 779 places, 730 transitions, 10646 flow. Second operand 24 states and 6015 transitions. [2022-01-19 13:00:44,413 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 792 places, 844 transitions, 12137 flow [2022-01-19 13:00:45,064 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 781 places, 844 transitions, 12104 flow, removed 16 selfloop flow, removed 11 redundant places. [2022-01-19 13:00:45,075 INFO L242 Difference]: Finished difference. Result has 801 places, 759 transitions, 10978 flow [2022-01-19 13:00:45,076 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10625, PETRI_DIFFERENCE_MINUEND_PLACES=758, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=730, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=720, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=10978, PETRI_PLACES=801, PETRI_TRANSITIONS=759} [2022-01-19 13:00:45,076 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 545 predicate places. [2022-01-19 13:00:45,076 INFO L470 AbstractCegarLoop]: Abstraction has has 801 places, 759 transitions, 10978 flow [2022-01-19 13:00:45,076 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:45,076 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:45,077 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:00:45,077 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 13:00:45,077 INFO L402 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:45,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:45,077 INFO L85 PathProgramCache]: Analyzing trace with hash -1613400096, now seen corresponding path program 2 times [2022-01-19 13:00:45,077 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:45,077 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563433645] [2022-01-19 13:00:45,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:45,077 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:45,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:45,172 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 13:00:45,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:45,172 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563433645] [2022-01-19 13:00:45,172 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [563433645] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:45,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:45,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:45,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1457428721] [2022-01-19 13:00:45,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:45,173 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:45,173 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:45,173 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:45,173 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:45,174 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:45,175 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 801 places, 759 transitions, 10978 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:45,175 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:45,175 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:45,175 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:46,977 INFO L129 PetriNetUnfolder]: 1290/6605 cut-off events. [2022-01-19 13:00:46,978 INFO L130 PetriNetUnfolder]: For 62874/63000 co-relation queries the response was YES. [2022-01-19 13:00:47,084 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28557 conditions, 6605 events. 1290/6605 cut-off events. For 62874/63000 co-relation queries the response was YES. Maximal size of possible extension queue 519. Compared 82883 event pairs, 458 based on Foata normal form. 13/6428 useless extension candidates. Maximal degree in co-relation 28350. Up to 2050 conditions per place. [2022-01-19 13:00:47,100 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 359 selfloop transitions, 45 changer transitions 19/834 dead transitions. [2022-01-19 13:00:47,101 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 818 places, 834 transitions, 12429 flow [2022-01-19 13:00:47,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:00:47,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:00:47,253 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5008 transitions. [2022-01-19 13:00:47,254 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8755244755244755 [2022-01-19 13:00:47,254 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5008 transitions. [2022-01-19 13:00:47,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5008 transitions. [2022-01-19 13:00:47,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:47,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5008 transitions. [2022-01-19 13:00:47,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.4) internal successors, (5008), 20 states have internal predecessors, (5008), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:47,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:47,260 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:47,260 INFO L186 Difference]: Start difference. First operand has 801 places, 759 transitions, 10978 flow. Second operand 20 states and 5008 transitions. [2022-01-19 13:00:47,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 818 places, 834 transitions, 12429 flow [2022-01-19 13:00:47,959 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 816 places, 834 transitions, 12203 flow, removed 113 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:47,970 INFO L242 Difference]: Finished difference. Result has 831 places, 791 transitions, 11331 flow [2022-01-19 13:00:47,971 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=10850, PETRI_DIFFERENCE_MINUEND_PLACES=797, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=759, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=734, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11331, PETRI_PLACES=831, PETRI_TRANSITIONS=791} [2022-01-19 13:00:47,972 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 575 predicate places. [2022-01-19 13:00:47,972 INFO L470 AbstractCegarLoop]: Abstraction has has 831 places, 791 transitions, 11331 flow [2022-01-19 13:00:47,972 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:47,972 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:47,973 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] [2022-01-19 13:00:47,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 13:00:47,973 INFO L402 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:47,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:47,973 INFO L85 PathProgramCache]: Analyzing trace with hash 204801746, now seen corresponding path program 3 times [2022-01-19 13:00:47,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:47,973 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948603833] [2022-01-19 13:00:47,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:47,973 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:48,049 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 13:00:48,049 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:48,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948603833] [2022-01-19 13:00:48,049 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948603833] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:48,049 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:48,049 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:48,049 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171718010] [2022-01-19 13:00:48,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:48,050 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:48,050 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:48,050 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:48,050 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:48,051 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:48,052 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 831 places, 791 transitions, 11331 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:48,052 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:48,052 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:48,052 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:50,139 INFO L129 PetriNetUnfolder]: 1336/6926 cut-off events. [2022-01-19 13:00:50,139 INFO L130 PetriNetUnfolder]: For 69488/69631 co-relation queries the response was YES. [2022-01-19 13:00:50,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 30714 conditions, 6926 events. 1336/6926 cut-off events. For 69488/69631 co-relation queries the response was YES. Maximal size of possible extension queue 557. Compared 87563 event pairs, 516 based on Foata normal form. 21/6755 useless extension candidates. Maximal degree in co-relation 30493. Up to 2098 conditions per place. [2022-01-19 13:00:50,251 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 401 selfloop transitions, 42 changer transitions 22/876 dead transitions. [2022-01-19 13:00:50,251 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 848 places, 876 transitions, 13150 flow [2022-01-19 13:00:50,251 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 13:00:50,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 13:00:50,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 5012 transitions. [2022-01-19 13:00:50,254 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762237762237762 [2022-01-19 13:00:50,254 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 5012 transitions. [2022-01-19 13:00:50,254 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 5012 transitions. [2022-01-19 13:00:50,255 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:50,255 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 5012 transitions. [2022-01-19 13:00:50,258 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 250.6) internal successors, (5012), 20 states have internal predecessors, (5012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:50,260 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:50,260 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 286.0) internal successors, (6006), 21 states have internal predecessors, (6006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:50,260 INFO L186 Difference]: Start difference. First operand has 831 places, 791 transitions, 11331 flow. Second operand 20 states and 5012 transitions. [2022-01-19 13:00:50,260 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 848 places, 876 transitions, 13150 flow [2022-01-19 13:00:51,054 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 846 places, 876 transitions, 12860 flow, removed 145 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:51,065 INFO L242 Difference]: Finished difference. Result has 861 places, 823 transitions, 11712 flow [2022-01-19 13:00:51,066 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=11193, PETRI_DIFFERENCE_MINUEND_PLACES=827, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=791, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=767, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11712, PETRI_PLACES=861, PETRI_TRANSITIONS=823} [2022-01-19 13:00:51,071 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 605 predicate places. [2022-01-19 13:00:51,071 INFO L470 AbstractCegarLoop]: Abstraction has has 861 places, 823 transitions, 11712 flow [2022-01-19 13:00:51,072 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:51,072 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:51,072 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] [2022-01-19 13:00:51,072 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 13:00:51,072 INFO L402 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:51,072 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash 1676019516, now seen corresponding path program 4 times [2022-01-19 13:00:51,072 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:51,072 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669809620] [2022-01-19 13:00:51,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:51,073 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:51,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:51,133 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 13:00:51,133 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:51,133 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669809620] [2022-01-19 13:00:51,133 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [669809620] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:51,134 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:51,134 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:51,134 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [988557547] [2022-01-19 13:00:51,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:51,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:51,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:51,134 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:51,134 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:51,135 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:51,136 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 861 places, 823 transitions, 11712 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:51,136 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:51,136 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:51,136 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:53,222 INFO L129 PetriNetUnfolder]: 1381/7212 cut-off events. [2022-01-19 13:00:53,222 INFO L130 PetriNetUnfolder]: For 69132/69276 co-relation queries the response was YES. [2022-01-19 13:00:53,334 INFO L84 FinitePrefix]: Finished finitePrefix Result has 31405 conditions, 7212 events. 1381/7212 cut-off events. For 69132/69276 co-relation queries the response was YES. Maximal size of possible extension queue 592. Compared 92486 event pairs, 443 based on Foata normal form. 13/7039 useless extension candidates. Maximal degree in co-relation 31170. Up to 1903 conditions per place. [2022-01-19 13:00:53,350 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 423 selfloop transitions, 81 changer transitions 26/941 dead transitions. [2022-01-19 13:00:53,351 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 882 places, 941 transitions, 13831 flow [2022-01-19 13:00:53,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-01-19 13:00:53,351 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2022-01-19 13:00:53,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 6012 transitions. [2022-01-19 13:00:53,353 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8758741258741258 [2022-01-19 13:00:53,353 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 6012 transitions. [2022-01-19 13:00:53,353 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 6012 transitions. [2022-01-19 13:00:53,354 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:53,354 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 6012 transitions. [2022-01-19 13:00:53,357 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 250.5) internal successors, (6012), 24 states have internal predecessors, (6012), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:53,360 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:53,360 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 286.0) internal successors, (7150), 25 states have internal predecessors, (7150), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:53,360 INFO L186 Difference]: Start difference. First operand has 861 places, 823 transitions, 11712 flow. Second operand 24 states and 6012 transitions. [2022-01-19 13:00:53,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 882 places, 941 transitions, 13831 flow [2022-01-19 13:00:54,148 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 880 places, 941 transitions, 13519 flow, removed 156 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:54,159 INFO L242 Difference]: Finished difference. Result has 900 places, 851 transitions, 12215 flow [2022-01-19 13:00:54,160 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=11532, PETRI_DIFFERENCE_MINUEND_PLACES=857, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=823, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=757, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=12215, PETRI_PLACES=900, PETRI_TRANSITIONS=851} [2022-01-19 13:00:54,160 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 644 predicate places. [2022-01-19 13:00:54,160 INFO L470 AbstractCegarLoop]: Abstraction has has 900 places, 851 transitions, 12215 flow [2022-01-19 13:00:54,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:54,161 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:54,161 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] [2022-01-19 13:00:54,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 13:00:54,161 INFO L402 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:54,161 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:54,161 INFO L85 PathProgramCache]: Analyzing trace with hash -231405122, now seen corresponding path program 5 times [2022-01-19 13:00:54,161 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:54,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2027408759] [2022-01-19 13:00:54,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:54,161 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:54,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:54,233 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 13:00:54,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:54,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2027408759] [2022-01-19 13:00:54,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2027408759] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:54,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:54,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:54,233 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98039600] [2022-01-19 13:00:54,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:54,234 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:54,234 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:54,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:54,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:54,235 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:54,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 900 places, 851 transitions, 12215 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:54,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:54,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:54,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:00:56,739 INFO L129 PetriNetUnfolder]: 1481/7642 cut-off events. [2022-01-19 13:00:56,739 INFO L130 PetriNetUnfolder]: For 75910/76068 co-relation queries the response was YES. [2022-01-19 13:00:56,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 33967 conditions, 7642 events. 1481/7642 cut-off events. For 75910/76068 co-relation queries the response was YES. Maximal size of possible extension queue 644. Compared 99210 event pairs, 481 based on Foata normal form. 36/7493 useless extension candidates. Maximal degree in co-relation 33713. Up to 2193 conditions per place. [2022-01-19 13:00:56,873 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 419 selfloop transitions, 86 changer transitions 24/940 dead transitions. [2022-01-19 13:00:56,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 919 places, 940 transitions, 14223 flow [2022-01-19 13:00:56,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:00:56,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:00:56,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5507 transitions. [2022-01-19 13:00:56,876 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8752383979656707 [2022-01-19 13:00:56,876 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5507 transitions. [2022-01-19 13:00:56,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5507 transitions. [2022-01-19 13:00:56,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:00:56,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5507 transitions. [2022-01-19 13:00:56,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.3181818181818) internal successors, (5507), 22 states have internal predecessors, (5507), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:56,881 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:56,882 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:56,882 INFO L186 Difference]: Start difference. First operand has 900 places, 851 transitions, 12215 flow. Second operand 22 states and 5507 transitions. [2022-01-19 13:00:56,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 919 places, 940 transitions, 14223 flow [2022-01-19 13:00:57,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 917 places, 940 transitions, 13999 flow, removed 112 selfloop flow, removed 2 redundant places. [2022-01-19 13:00:57,860 INFO L242 Difference]: Finished difference. Result has 931 places, 883 transitions, 12803 flow [2022-01-19 13:00:57,861 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12079, PETRI_DIFFERENCE_MINUEND_PLACES=896, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=851, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=786, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=12803, PETRI_PLACES=931, PETRI_TRANSITIONS=883} [2022-01-19 13:00:57,861 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 675 predicate places. [2022-01-19 13:00:57,861 INFO L470 AbstractCegarLoop]: Abstraction has has 931 places, 883 transitions, 12803 flow [2022-01-19 13:00:57,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:57,862 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:00:57,862 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] [2022-01-19 13:00:57,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-19 13:00:57,862 INFO L402 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:00:57,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:00:57,862 INFO L85 PathProgramCache]: Analyzing trace with hash 946547592, now seen corresponding path program 6 times [2022-01-19 13:00:57,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:00:57,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255953405] [2022-01-19 13:00:57,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:00:57,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:00:57,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:00:57,923 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 13:00:57,923 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:00:57,923 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255953405] [2022-01-19 13:00:57,923 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255953405] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:00:57,923 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:00:57,923 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:00:57,923 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1201409175] [2022-01-19 13:00:57,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:00:57,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:00:57,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:00:57,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:00:57,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:00:57,925 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:00:57,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 931 places, 883 transitions, 12803 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:00:57,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:00:57,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:00:57,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:00,436 INFO L129 PetriNetUnfolder]: 1538/7928 cut-off events. [2022-01-19 13:01:00,436 INFO L130 PetriNetUnfolder]: For 74116/74275 co-relation queries the response was YES. [2022-01-19 13:01:00,577 INFO L84 FinitePrefix]: Finished finitePrefix Result has 35414 conditions, 7928 events. 1538/7928 cut-off events. For 74116/74275 co-relation queries the response was YES. Maximal size of possible extension queue 672. Compared 103566 event pairs, 508 based on Foata normal form. 28/7762 useless extension candidates. Maximal degree in co-relation 35147. Up to 2275 conditions per place. [2022-01-19 13:01:00,597 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 428 selfloop transitions, 89 changer transitions 16/944 dead transitions. [2022-01-19 13:01:00,597 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 945 places, 944 transitions, 14547 flow [2022-01-19 13:01:00,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:01:00,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:01:00,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 13:01:00,599 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 13:01:00,599 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 13:01:00,599 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 13:01:00,600 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:00,600 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 13:01:00,602 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:00,604 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:00,604 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:00,604 INFO L186 Difference]: Start difference. First operand has 931 places, 883 transitions, 12803 flow. Second operand 17 states and 4265 transitions. [2022-01-19 13:01:00,604 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 945 places, 944 transitions, 14547 flow [2022-01-19 13:01:01,645 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 943 places, 944 transitions, 14379 flow, removed 84 selfloop flow, removed 2 redundant places. [2022-01-19 13:01:01,657 INFO L242 Difference]: Finished difference. Result has 952 places, 904 transitions, 13261 flow [2022-01-19 13:01:01,657 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12663, PETRI_DIFFERENCE_MINUEND_PLACES=927, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=883, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=809, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=13261, PETRI_PLACES=952, PETRI_TRANSITIONS=904} [2022-01-19 13:01:01,658 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 696 predicate places. [2022-01-19 13:01:01,658 INFO L470 AbstractCegarLoop]: Abstraction has has 952 places, 904 transitions, 13261 flow [2022-01-19 13:01:01,658 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:01,658 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:01,658 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] [2022-01-19 13:01:01,658 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-19 13:01:01,658 INFO L402 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:01,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:01,659 INFO L85 PathProgramCache]: Analyzing trace with hash 425111128, now seen corresponding path program 7 times [2022-01-19 13:01:01,659 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:01,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836929126] [2022-01-19 13:01:01,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:01,659 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:01,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:01,722 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 13:01:01,722 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:01,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836929126] [2022-01-19 13:01:01,722 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836929126] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:01,722 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:01,722 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:01,722 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535387024] [2022-01-19 13:01:01,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:01,723 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:01,723 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:01,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:01,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:01,725 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:01,725 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 952 places, 904 transitions, 13261 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:01,726 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:01,726 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:01,726 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:04,332 INFO L129 PetriNetUnfolder]: 1565/8073 cut-off events. [2022-01-19 13:01:04,333 INFO L130 PetriNetUnfolder]: For 77985/78148 co-relation queries the response was YES. [2022-01-19 13:01:04,478 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36588 conditions, 8073 events. 1565/8073 cut-off events. For 77985/78148 co-relation queries the response was YES. Maximal size of possible extension queue 699. Compared 106323 event pairs, 521 based on Foata normal form. 32/7920 useless extension candidates. Maximal degree in co-relation 36313. Up to 2331 conditions per place. [2022-01-19 13:01:04,499 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 436 selfloop transitions, 104 changer transitions 14/965 dead transitions. [2022-01-19 13:01:04,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 965 places, 965 transitions, 15016 flow [2022-01-19 13:01:04,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 13:01:04,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 13:01:04,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4014 transitions. [2022-01-19 13:01:04,501 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8771853146853147 [2022-01-19 13:01:04,501 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4014 transitions. [2022-01-19 13:01:04,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4014 transitions. [2022-01-19 13:01:04,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:04,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4014 transitions. [2022-01-19 13:01:04,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 250.875) internal successors, (4014), 16 states have internal predecessors, (4014), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:04,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:04,505 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:04,505 INFO L186 Difference]: Start difference. First operand has 952 places, 904 transitions, 13261 flow. Second operand 16 states and 4014 transitions. [2022-01-19 13:01:04,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 965 places, 965 transitions, 15016 flow [2022-01-19 13:01:05,433 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 963 places, 965 transitions, 14886 flow, removed 65 selfloop flow, removed 2 redundant places. [2022-01-19 13:01:05,445 INFO L242 Difference]: Finished difference. Result has 972 places, 922 transitions, 13689 flow [2022-01-19 13:01:05,446 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13135, PETRI_DIFFERENCE_MINUEND_PLACES=948, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=904, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=813, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=13689, PETRI_PLACES=972, PETRI_TRANSITIONS=922} [2022-01-19 13:01:05,446 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 716 predicate places. [2022-01-19 13:01:05,446 INFO L470 AbstractCegarLoop]: Abstraction has has 972 places, 922 transitions, 13689 flow [2022-01-19 13:01:05,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:05,447 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:05,447 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] [2022-01-19 13:01:05,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-19 13:01:05,447 INFO L402 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:05,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:05,447 INFO L85 PathProgramCache]: Analyzing trace with hash 1029021466, now seen corresponding path program 8 times [2022-01-19 13:01:05,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:05,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433192522] [2022-01-19 13:01:05,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:05,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:05,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:05,519 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 13:01:05,519 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:05,519 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433192522] [2022-01-19 13:01:05,519 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433192522] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:05,519 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:05,519 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:05,520 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1394719080] [2022-01-19 13:01:05,520 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:05,520 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:05,520 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:05,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:05,520 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:05,521 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:05,522 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 972 places, 922 transitions, 13689 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:05,522 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:05,522 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:05,522 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:08,383 INFO L129 PetriNetUnfolder]: 1600/8473 cut-off events. [2022-01-19 13:01:08,384 INFO L130 PetriNetUnfolder]: For 83808/83975 co-relation queries the response was YES. [2022-01-19 13:01:08,537 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38361 conditions, 8473 events. 1600/8473 cut-off events. For 83808/83975 co-relation queries the response was YES. Maximal size of possible extension queue 741. Compared 113034 event pairs, 533 based on Foata normal form. 15/8299 useless extension candidates. Maximal degree in co-relation 38078. Up to 2269 conditions per place. [2022-01-19 13:01:08,561 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 460 selfloop transitions, 98 changer transitions 23/992 dead transitions. [2022-01-19 13:01:08,561 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 990 places, 992 transitions, 15742 flow [2022-01-19 13:01:08,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:01:08,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:01:08,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5261 transitions. [2022-01-19 13:01:08,563 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.875957375957376 [2022-01-19 13:01:08,563 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5261 transitions. [2022-01-19 13:01:08,563 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5261 transitions. [2022-01-19 13:01:08,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:08,564 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5261 transitions. [2022-01-19 13:01:08,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.52380952380952) internal successors, (5261), 21 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:08,569 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:08,569 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:08,569 INFO L186 Difference]: Start difference. First operand has 972 places, 922 transitions, 13689 flow. Second operand 21 states and 5261 transitions. [2022-01-19 13:01:08,569 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 990 places, 992 transitions, 15742 flow [2022-01-19 13:01:09,539 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 987 places, 992 transitions, 15598 flow, removed 50 selfloop flow, removed 3 redundant places. [2022-01-19 13:01:09,552 INFO L242 Difference]: Finished difference. Result has 1001 places, 946 transitions, 14381 flow [2022-01-19 13:01:09,552 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13583, PETRI_DIFFERENCE_MINUEND_PLACES=967, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=922, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=839, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=14381, PETRI_PLACES=1001, PETRI_TRANSITIONS=946} [2022-01-19 13:01:09,552 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 745 predicate places. [2022-01-19 13:01:09,553 INFO L470 AbstractCegarLoop]: Abstraction has has 1001 places, 946 transitions, 14381 flow [2022-01-19 13:01:09,553 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:09,553 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:09,553 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:01:09,553 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-19 13:01:09,553 INFO L402 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:09,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:09,553 INFO L85 PathProgramCache]: Analyzing trace with hash 215260482, now seen corresponding path program 9 times [2022-01-19 13:01:09,554 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:09,554 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [126450633] [2022-01-19 13:01:09,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:09,554 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:09,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:09,616 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 13:01:09,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:09,617 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [126450633] [2022-01-19 13:01:09,617 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [126450633] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:09,617 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:09,617 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:09,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506187654] [2022-01-19 13:01:09,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:09,617 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:09,617 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:09,617 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:09,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:09,618 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:09,619 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1001 places, 946 transitions, 14381 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:09,619 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:09,619 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:09,619 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:12,547 INFO L129 PetriNetUnfolder]: 1600/8552 cut-off events. [2022-01-19 13:01:12,547 INFO L130 PetriNetUnfolder]: For 89441/89644 co-relation queries the response was YES. [2022-01-19 13:01:12,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 39130 conditions, 8552 events. 1600/8552 cut-off events. For 89441/89644 co-relation queries the response was YES. Maximal size of possible extension queue 751. Compared 114240 event pairs, 508 based on Foata normal form. 39/8405 useless extension candidates. Maximal degree in co-relation 38835. Up to 2369 conditions per place. [2022-01-19 13:01:12,730 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 449 selfloop transitions, 117 changer transitions 23/1000 dead transitions. [2022-01-19 13:01:12,730 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1016 places, 1000 transitions, 16143 flow [2022-01-19 13:01:12,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:01:12,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:01:12,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 13:01:12,732 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 13:01:12,732 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 13:01:12,732 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 13:01:12,733 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:12,733 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 13:01:12,735 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:12,737 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:12,737 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:12,737 INFO L186 Difference]: Start difference. First operand has 1001 places, 946 transitions, 14381 flow. Second operand 18 states and 4511 transitions. [2022-01-19 13:01:12,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1016 places, 1000 transitions, 16143 flow [2022-01-19 13:01:13,763 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1014 places, 1000 transitions, 15939 flow, removed 102 selfloop flow, removed 2 redundant places. [2022-01-19 13:01:13,776 INFO L242 Difference]: Finished difference. Result has 1022 places, 956 transitions, 14694 flow [2022-01-19 13:01:13,776 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=14191, PETRI_DIFFERENCE_MINUEND_PLACES=997, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=946, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=833, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=14694, PETRI_PLACES=1022, PETRI_TRANSITIONS=956} [2022-01-19 13:01:13,776 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 766 predicate places. [2022-01-19 13:01:13,777 INFO L470 AbstractCegarLoop]: Abstraction has has 1022 places, 956 transitions, 14694 flow [2022-01-19 13:01:13,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:13,777 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:13,777 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] [2022-01-19 13:01:13,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-19 13:01:13,777 INFO L402 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:13,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:13,777 INFO L85 PathProgramCache]: Analyzing trace with hash -423495574, now seen corresponding path program 10 times [2022-01-19 13:01:13,777 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:13,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352016757] [2022-01-19 13:01:13,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:13,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:13,842 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 13:01:13,842 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:13,842 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352016757] [2022-01-19 13:01:13,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352016757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:13,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:13,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:13,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636602474] [2022-01-19 13:01:13,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:13,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:13,843 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:13,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:13,843 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:13,844 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:13,845 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1022 places, 956 transitions, 14694 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:13,845 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:13,845 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:13,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:17,070 INFO L129 PetriNetUnfolder]: 1633/8830 cut-off events. [2022-01-19 13:01:17,071 INFO L130 PetriNetUnfolder]: For 92355/92543 co-relation queries the response was YES. [2022-01-19 13:01:17,247 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40511 conditions, 8830 events. 1633/8830 cut-off events. For 92355/92543 co-relation queries the response was YES. Maximal size of possible extension queue 783. Compared 119087 event pairs, 537 based on Foata normal form. 15/8653 useless extension candidates. Maximal degree in co-relation 40209. Up to 2419 conditions per place. [2022-01-19 13:01:17,269 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 477 selfloop transitions, 107 changer transitions 15/1010 dead transitions. [2022-01-19 13:01:17,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1036 places, 1010 transitions, 16599 flow [2022-01-19 13:01:17,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:01:17,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:01:17,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4265 transitions. [2022-01-19 13:01:17,272 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8772110242698478 [2022-01-19 13:01:17,272 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4265 transitions. [2022-01-19 13:01:17,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4265 transitions. [2022-01-19 13:01:17,272 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:17,272 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4265 transitions. [2022-01-19 13:01:17,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.88235294117646) internal successors, (4265), 17 states have internal predecessors, (4265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:17,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:17,276 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:17,276 INFO L186 Difference]: Start difference. First operand has 1022 places, 956 transitions, 14694 flow. Second operand 17 states and 4265 transitions. [2022-01-19 13:01:17,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1036 places, 1010 transitions, 16599 flow [2022-01-19 13:01:18,398 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1032 places, 1010 transitions, 16415 flow, removed 48 selfloop flow, removed 4 redundant places. [2022-01-19 13:01:18,412 INFO L242 Difference]: Finished difference. Result has 1041 places, 977 transitions, 15244 flow [2022-01-19 13:01:18,412 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=14526, PETRI_DIFFERENCE_MINUEND_PLACES=1016, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=956, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=864, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=15244, PETRI_PLACES=1041, PETRI_TRANSITIONS=977} [2022-01-19 13:01:18,413 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 785 predicate places. [2022-01-19 13:01:18,413 INFO L470 AbstractCegarLoop]: Abstraction has has 1041 places, 977 transitions, 15244 flow [2022-01-19 13:01:18,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:18,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:18,413 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] [2022-01-19 13:01:18,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-19 13:01:18,413 INFO L402 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:18,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:18,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1996532382, now seen corresponding path program 11 times [2022-01-19 13:01:18,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:18,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534597751] [2022-01-19 13:01:18,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:18,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:18,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:18,478 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 13:01:18,478 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:18,478 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534597751] [2022-01-19 13:01:18,478 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534597751] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:18,478 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:18,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:18,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581641857] [2022-01-19 13:01:18,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:18,479 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:18,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:18,480 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:18,480 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:18,481 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:18,482 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1041 places, 977 transitions, 15244 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:18,482 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:18,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:18,482 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:21,506 INFO L129 PetriNetUnfolder]: 1636/8777 cut-off events. [2022-01-19 13:01:21,507 INFO L130 PetriNetUnfolder]: For 92457/92634 co-relation queries the response was YES. [2022-01-19 13:01:21,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41035 conditions, 8777 events. 1636/8777 cut-off events. For 92457/92634 co-relation queries the response was YES. Maximal size of possible extension queue 779. Compared 118177 event pairs, 517 based on Foata normal form. 28/8602 useless extension candidates. Maximal degree in co-relation 40725. Up to 2441 conditions per place. [2022-01-19 13:01:21,716 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 462 selfloop transitions, 127 changer transitions 20/1020 dead transitions. [2022-01-19 13:01:21,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1056 places, 1020 transitions, 16913 flow [2022-01-19 13:01:21,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:01:21,717 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:01:21,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 13:01:21,718 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 13:01:21,718 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 13:01:21,719 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 13:01:21,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:21,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 13:01:21,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:21,723 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:21,724 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:21,724 INFO L186 Difference]: Start difference. First operand has 1041 places, 977 transitions, 15244 flow. Second operand 18 states and 4511 transitions. [2022-01-19 13:01:21,724 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1056 places, 1020 transitions, 16913 flow [2022-01-19 13:01:23,023 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1053 places, 1020 transitions, 16729 flow, removed 67 selfloop flow, removed 3 redundant places. [2022-01-19 13:01:23,037 INFO L242 Difference]: Finished difference. Result has 1060 places, 989 transitions, 15624 flow [2022-01-19 13:01:23,038 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15066, PETRI_DIFFERENCE_MINUEND_PLACES=1036, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=977, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=856, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15624, PETRI_PLACES=1060, PETRI_TRANSITIONS=989} [2022-01-19 13:01:23,038 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 804 predicate places. [2022-01-19 13:01:23,038 INFO L470 AbstractCegarLoop]: Abstraction has has 1060 places, 989 transitions, 15624 flow [2022-01-19 13:01:23,038 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:23,038 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:23,038 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] [2022-01-19 13:01:23,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-19 13:01:23,039 INFO L402 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:23,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:23,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1398421174, now seen corresponding path program 12 times [2022-01-19 13:01:23,039 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:23,039 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961118717] [2022-01-19 13:01:23,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:23,039 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:23,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:23,112 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 13:01:23,112 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:23,112 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961118717] [2022-01-19 13:01:23,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961118717] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:23,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:23,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:23,113 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391587575] [2022-01-19 13:01:23,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:23,113 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:23,113 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:23,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:23,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:23,115 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:23,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1060 places, 989 transitions, 15624 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:23,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:23,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:23,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:26,424 INFO L129 PetriNetUnfolder]: 1635/9079 cut-off events. [2022-01-19 13:01:26,424 INFO L130 PetriNetUnfolder]: For 96515/96709 co-relation queries the response was YES. [2022-01-19 13:01:26,609 INFO L84 FinitePrefix]: Finished finitePrefix Result has 41507 conditions, 9079 events. 1635/9079 cut-off events. For 96515/96709 co-relation queries the response was YES. Maximal size of possible extension queue 808. Compared 123711 event pairs, 532 based on Foata normal form. 15/8904 useless extension candidates. Maximal degree in co-relation 41192. Up to 2431 conditions per place. [2022-01-19 13:01:26,632 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 480 selfloop transitions, 116 changer transitions 24/1031 dead transitions. [2022-01-19 13:01:26,632 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1075 places, 1031 transitions, 17288 flow [2022-01-19 13:01:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:01:26,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:01:26,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4515 transitions. [2022-01-19 13:01:26,635 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.877039627039627 [2022-01-19 13:01:26,635 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4515 transitions. [2022-01-19 13:01:26,635 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4515 transitions. [2022-01-19 13:01:26,635 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:26,635 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4515 transitions. [2022-01-19 13:01:26,637 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.83333333333334) internal successors, (4515), 18 states have internal predecessors, (4515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:26,639 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:26,640 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:26,640 INFO L186 Difference]: Start difference. First operand has 1060 places, 989 transitions, 15624 flow. Second operand 18 states and 4515 transitions. [2022-01-19 13:01:26,640 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1075 places, 1031 transitions, 17288 flow [2022-01-19 13:01:27,823 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1071 places, 1031 transitions, 17145 flow, removed 45 selfloop flow, removed 4 redundant places. [2022-01-19 13:01:27,837 INFO L242 Difference]: Finished difference. Result has 1078 places, 998 transitions, 15992 flow [2022-01-19 13:01:27,838 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15487, PETRI_DIFFERENCE_MINUEND_PLACES=1054, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=989, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=876, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=15992, PETRI_PLACES=1078, PETRI_TRANSITIONS=998} [2022-01-19 13:01:27,838 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 822 predicate places. [2022-01-19 13:01:27,838 INFO L470 AbstractCegarLoop]: Abstraction has has 1078 places, 998 transitions, 15992 flow [2022-01-19 13:01:27,839 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:27,839 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:27,839 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] [2022-01-19 13:01:27,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 13:01:27,839 INFO L402 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:27,839 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:27,839 INFO L85 PathProgramCache]: Analyzing trace with hash 436524064, now seen corresponding path program 13 times [2022-01-19 13:01:27,839 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:27,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465901968] [2022-01-19 13:01:27,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:27,839 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:27,898 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 13:01:27,898 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:27,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465901968] [2022-01-19 13:01:27,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465901968] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:27,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:27,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:27,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398705939] [2022-01-19 13:01:27,898 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:27,899 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:27,899 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:27,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:27,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:27,900 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:27,901 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1078 places, 998 transitions, 15992 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:27,901 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:27,901 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:27,901 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:31,287 INFO L129 PetriNetUnfolder]: 1734/9491 cut-off events. [2022-01-19 13:01:31,287 INFO L130 PetriNetUnfolder]: For 107430/107609 co-relation queries the response was YES. [2022-01-19 13:01:31,479 INFO L84 FinitePrefix]: Finished finitePrefix Result has 44070 conditions, 9491 events. 1734/9491 cut-off events. For 107430/107609 co-relation queries the response was YES. Maximal size of possible extension queue 845. Compared 129037 event pairs, 538 based on Foata normal form. 13/9318 useless extension candidates. Maximal degree in co-relation 43751. Up to 2415 conditions per place. [2022-01-19 13:01:31,504 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 509 selfloop transitions, 144 changer transitions 23/1087 dead transitions. [2022-01-19 13:01:31,504 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1097 places, 1087 transitions, 18411 flow [2022-01-19 13:01:31,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-19 13:01:31,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2022-01-19 13:01:31,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 5505 transitions. [2022-01-19 13:01:31,506 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8749205340114431 [2022-01-19 13:01:31,506 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 5505 transitions. [2022-01-19 13:01:31,506 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 5505 transitions. [2022-01-19 13:01:31,507 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:31,507 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 5505 transitions. [2022-01-19 13:01:31,510 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 250.22727272727272) internal successors, (5505), 22 states have internal predecessors, (5505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:31,512 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:31,512 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 286.0) internal successors, (6578), 23 states have internal predecessors, (6578), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:31,512 INFO L186 Difference]: Start difference. First operand has 1078 places, 998 transitions, 15992 flow. Second operand 22 states and 5505 transitions. [2022-01-19 13:01:31,513 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1097 places, 1087 transitions, 18411 flow [2022-01-19 13:01:32,846 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1094 places, 1087 transitions, 18284 flow, removed 62 selfloop flow, removed 3 redundant places. [2022-01-19 13:01:32,860 INFO L242 Difference]: Finished difference. Result has 1108 places, 1030 transitions, 16933 flow [2022-01-19 13:01:32,861 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15867, PETRI_DIFFERENCE_MINUEND_PLACES=1073, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=998, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=875, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=16933, PETRI_PLACES=1108, PETRI_TRANSITIONS=1030} [2022-01-19 13:01:32,861 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 852 predicate places. [2022-01-19 13:01:32,861 INFO L470 AbstractCegarLoop]: Abstraction has has 1108 places, 1030 transitions, 16933 flow [2022-01-19 13:01:32,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:32,862 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:32,862 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] [2022-01-19 13:01:32,862 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 13:01:32,862 INFO L402 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:32,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:32,862 INFO L85 PathProgramCache]: Analyzing trace with hash -212568294, now seen corresponding path program 14 times [2022-01-19 13:01:32,862 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:32,862 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103608823] [2022-01-19 13:01:32,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:32,863 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:32,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:32,928 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 13:01:32,929 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:32,929 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103608823] [2022-01-19 13:01:32,929 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103608823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:32,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:32,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:32,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778236045] [2022-01-19 13:01:32,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:32,929 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:32,929 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:32,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:32,929 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:32,930 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:32,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1108 places, 1030 transitions, 16933 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:32,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:32,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:32,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:36,664 INFO L129 PetriNetUnfolder]: 1768/9802 cut-off events. [2022-01-19 13:01:36,664 INFO L130 PetriNetUnfolder]: For 117112/117283 co-relation queries the response was YES. [2022-01-19 13:01:36,871 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46342 conditions, 9802 events. 1768/9802 cut-off events. For 117112/117283 co-relation queries the response was YES. Maximal size of possible extension queue 883. Compared 134752 event pairs, 586 based on Foata normal form. 13/9623 useless extension candidates. Maximal degree in co-relation 46011. Up to 2440 conditions per place. [2022-01-19 13:01:36,897 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 561 selfloop transitions, 106 changer transitions 21/1099 dead transitions. [2022-01-19 13:01:36,897 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1126 places, 1099 transitions, 19237 flow [2022-01-19 13:01:36,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 13:01:36,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 13:01:36,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 5258 transitions. [2022-01-19 13:01:36,899 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8754578754578755 [2022-01-19 13:01:36,899 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 5258 transitions. [2022-01-19 13:01:36,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 5258 transitions. [2022-01-19 13:01:36,900 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:36,900 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 5258 transitions. [2022-01-19 13:01:36,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 250.38095238095238) internal successors, (5258), 21 states have internal predecessors, (5258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:36,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:36,905 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 286.0) internal successors, (6292), 22 states have internal predecessors, (6292), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:36,905 INFO L186 Difference]: Start difference. First operand has 1108 places, 1030 transitions, 16933 flow. Second operand 21 states and 5258 transitions. [2022-01-19 13:01:36,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1126 places, 1099 transitions, 19237 flow [2022-01-19 13:01:38,334 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1124 places, 1099 transitions, 19033 flow, removed 102 selfloop flow, removed 2 redundant places. [2022-01-19 13:01:38,348 INFO L242 Difference]: Finished difference. Result has 1138 places, 1054 transitions, 17606 flow [2022-01-19 13:01:38,349 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=16743, PETRI_DIFFERENCE_MINUEND_PLACES=1104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1030, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=939, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=17606, PETRI_PLACES=1138, PETRI_TRANSITIONS=1054} [2022-01-19 13:01:38,349 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 882 predicate places. [2022-01-19 13:01:38,349 INFO L470 AbstractCegarLoop]: Abstraction has has 1138 places, 1054 transitions, 17606 flow [2022-01-19 13:01:38,349 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:38,349 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:38,349 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] [2022-01-19 13:01:38,349 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-19 13:01:38,350 INFO L402 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:38,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:38,350 INFO L85 PathProgramCache]: Analyzing trace with hash -1792130372, now seen corresponding path program 15 times [2022-01-19 13:01:38,350 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:38,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137019535] [2022-01-19 13:01:38,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:38,350 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:38,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:38,410 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 13:01:38,410 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:38,410 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137019535] [2022-01-19 13:01:38,410 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [137019535] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:38,410 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:38,410 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:38,410 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537514500] [2022-01-19 13:01:38,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:38,411 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:38,411 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:38,411 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:38,411 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:38,412 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:38,412 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1138 places, 1054 transitions, 17606 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:38,413 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:38,413 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:38,413 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:42,090 INFO L129 PetriNetUnfolder]: 1791/10041 cut-off events. [2022-01-19 13:01:42,091 INFO L130 PetriNetUnfolder]: For 122972/123143 co-relation queries the response was YES. [2022-01-19 13:01:42,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 47673 conditions, 10041 events. 1791/10041 cut-off events. For 122972/123143 co-relation queries the response was YES. Maximal size of possible extension queue 907. Compared 139005 event pairs, 526 based on Foata normal form. 13/9868 useless extension candidates. Maximal degree in co-relation 47329. Up to 2511 conditions per place. [2022-01-19 13:01:42,518 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 530 selfloop transitions, 162 changer transitions 18/1121 dead transitions. [2022-01-19 13:01:42,518 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1153 places, 1121 transitions, 19829 flow [2022-01-19 13:01:42,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:01:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:01:42,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4511 transitions. [2022-01-19 13:01:42,520 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8762626262626263 [2022-01-19 13:01:42,520 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4511 transitions. [2022-01-19 13:01:42,520 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4511 transitions. [2022-01-19 13:01:42,520 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:42,520 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4511 transitions. [2022-01-19 13:01:42,522 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.61111111111111) internal successors, (4511), 18 states have internal predecessors, (4511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:42,524 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:42,525 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:42,525 INFO L186 Difference]: Start difference. First operand has 1138 places, 1054 transitions, 17606 flow. Second operand 18 states and 4511 transitions. [2022-01-19 13:01:42,525 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1153 places, 1121 transitions, 19829 flow [2022-01-19 13:01:44,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1151 places, 1121 transitions, 19627 flow, removed 101 selfloop flow, removed 2 redundant places. [2022-01-19 13:01:44,089 INFO L242 Difference]: Finished difference. Result has 1159 places, 1075 transitions, 18261 flow [2022-01-19 13:01:44,090 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=17406, PETRI_DIFFERENCE_MINUEND_PLACES=1134, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1054, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=144, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=906, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=18261, PETRI_PLACES=1159, PETRI_TRANSITIONS=1075} [2022-01-19 13:01:44,090 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 903 predicate places. [2022-01-19 13:01:44,090 INFO L470 AbstractCegarLoop]: Abstraction has has 1159 places, 1075 transitions, 18261 flow [2022-01-19 13:01:44,090 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:44,090 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:44,090 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] [2022-01-19 13:01:44,090 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-19 13:01:44,090 INFO L402 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:44,091 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:44,091 INFO L85 PathProgramCache]: Analyzing trace with hash 830839342, now seen corresponding path program 16 times [2022-01-19 13:01:44,091 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:44,091 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308092503] [2022-01-19 13:01:44,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:44,091 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:44,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:44,153 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 13:01:44,154 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:44,154 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308092503] [2022-01-19 13:01:44,154 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1308092503] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:44,154 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:44,154 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:44,154 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665695703] [2022-01-19 13:01:44,154 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:44,154 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:44,154 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:44,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:44,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:44,155 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:44,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1159 places, 1075 transitions, 18261 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:44,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:44,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:44,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:47,914 INFO L129 PetriNetUnfolder]: 1846/10267 cut-off events. [2022-01-19 13:01:47,914 INFO L130 PetriNetUnfolder]: For 129120/129291 co-relation queries the response was YES. [2022-01-19 13:01:48,309 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49767 conditions, 10267 events. 1846/10267 cut-off events. For 129120/129291 co-relation queries the response was YES. Maximal size of possible extension queue 940. Compared 143121 event pairs, 525 based on Foata normal form. 13/10086 useless extension candidates. Maximal degree in co-relation 49416. Up to 2554 conditions per place. [2022-01-19 13:01:48,337 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 571 selfloop transitions, 135 changer transitions 16/1133 dead transitions. [2022-01-19 13:01:48,337 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1173 places, 1133 transitions, 20493 flow [2022-01-19 13:01:48,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:01:48,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:01:48,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4264 transitions. [2022-01-19 13:01:48,339 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8770053475935828 [2022-01-19 13:01:48,339 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4264 transitions. [2022-01-19 13:01:48,339 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4264 transitions. [2022-01-19 13:01:48,339 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:48,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4264 transitions. [2022-01-19 13:01:48,342 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 250.8235294117647) internal successors, (4264), 17 states have internal predecessors, (4264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:48,343 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:48,344 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:48,344 INFO L186 Difference]: Start difference. First operand has 1159 places, 1075 transitions, 18261 flow. Second operand 17 states and 4264 transitions. [2022-01-19 13:01:48,344 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1173 places, 1133 transitions, 20493 flow [2022-01-19 13:01:50,039 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1171 places, 1133 transitions, 20267 flow, removed 113 selfloop flow, removed 2 redundant places. [2022-01-19 13:01:50,055 INFO L242 Difference]: Finished difference. Result has 1180 places, 1096 transitions, 18898 flow [2022-01-19 13:01:50,056 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=18079, PETRI_DIFFERENCE_MINUEND_PLACES=1155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1075, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=955, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=18898, PETRI_PLACES=1180, PETRI_TRANSITIONS=1096} [2022-01-19 13:01:50,056 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 924 predicate places. [2022-01-19 13:01:50,056 INFO L470 AbstractCegarLoop]: Abstraction has has 1180 places, 1096 transitions, 18898 flow [2022-01-19 13:01:50,056 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:50,056 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:50,056 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:01:50,056 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2022-01-19 13:01:50,056 INFO L402 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:50,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:50,057 INFO L85 PathProgramCache]: Analyzing trace with hash 382049174, now seen corresponding path program 17 times [2022-01-19 13:01:50,057 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:50,057 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275373049] [2022-01-19 13:01:50,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:50,057 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:50,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:50,119 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 13:01:50,120 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:50,120 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275373049] [2022-01-19 13:01:50,120 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275373049] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:50,120 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:50,120 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:50,120 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912203933] [2022-01-19 13:01:50,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:50,120 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:50,120 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:50,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:50,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:50,121 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:50,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1180 places, 1096 transitions, 18898 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:50,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:50,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:50,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:01:54,230 INFO L129 PetriNetUnfolder]: 1869/10467 cut-off events. [2022-01-19 13:01:54,230 INFO L130 PetriNetUnfolder]: For 137038/137209 co-relation queries the response was YES. [2022-01-19 13:01:54,464 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51237 conditions, 10467 events. 1869/10467 cut-off events. For 137038/137209 co-relation queries the response was YES. Maximal size of possible extension queue 958. Compared 145793 event pairs, 578 based on Foata normal form. 13/10286 useless extension candidates. Maximal degree in co-relation 50878. Up to 2589 conditions per place. [2022-01-19 13:01:54,492 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 596 selfloop transitions, 127 changer transitions 17/1151 dead transitions. [2022-01-19 13:01:54,492 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1195 places, 1151 transitions, 21136 flow [2022-01-19 13:01:54,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:01:54,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:01:54,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 13:01:54,494 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 13:01:54,494 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 13:01:54,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 13:01:54,494 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:01:54,494 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 13:01:54,497 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:54,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:54,499 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:54,499 INFO L186 Difference]: Start difference. First operand has 1180 places, 1096 transitions, 18898 flow. Second operand 18 states and 4514 transitions. [2022-01-19 13:01:54,499 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1195 places, 1151 transitions, 21136 flow [2022-01-19 13:01:56,310 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1193 places, 1151 transitions, 20996 flow, removed 70 selfloop flow, removed 2 redundant places. [2022-01-19 13:01:56,326 INFO L242 Difference]: Finished difference. Result has 1201 places, 1115 transitions, 19566 flow [2022-01-19 13:01:56,327 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=18762, PETRI_DIFFERENCE_MINUEND_PLACES=1176, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1096, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=110, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=982, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=19566, PETRI_PLACES=1201, PETRI_TRANSITIONS=1115} [2022-01-19 13:01:56,327 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 945 predicate places. [2022-01-19 13:01:56,327 INFO L470 AbstractCegarLoop]: Abstraction has has 1201 places, 1115 transitions, 19566 flow [2022-01-19 13:01:56,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:56,328 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:01:56,328 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] [2022-01-19 13:01:56,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2022-01-19 13:01:56,328 INFO L402 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:01:56,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:01:56,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1365412372, now seen corresponding path program 18 times [2022-01-19 13:01:56,328 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:01:56,328 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072453244] [2022-01-19 13:01:56,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:01:56,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:01:56,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:01:56,388 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 13:01:56,388 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:01:56,388 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072453244] [2022-01-19 13:01:56,388 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072453244] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:01:56,388 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:01:56,388 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:01:56,389 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530808484] [2022-01-19 13:01:56,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:01:56,389 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:01:56,389 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:01:56,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:01:56,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:01:56,390 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:01:56,391 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1201 places, 1115 transitions, 19566 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:01:56,391 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:01:56,391 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:01:56,391 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:00,626 INFO L129 PetriNetUnfolder]: 1872/10609 cut-off events. [2022-01-19 13:02:00,626 INFO L130 PetriNetUnfolder]: For 143882/144053 co-relation queries the response was YES. [2022-01-19 13:02:00,884 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52092 conditions, 10609 events. 1872/10609 cut-off events. For 143882/144053 co-relation queries the response was YES. Maximal size of possible extension queue 974. Compared 148129 event pairs, 535 based on Foata normal form. 13/10435 useless extension candidates. Maximal degree in co-relation 51726. Up to 2615 conditions per place. [2022-01-19 13:02:00,912 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 554 selfloop transitions, 179 changer transitions 22/1166 dead transitions. [2022-01-19 13:02:00,913 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1214 places, 1166 transitions, 21554 flow [2022-01-19 13:02:00,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 13:02:00,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 13:02:00,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 4017 transitions. [2022-01-19 13:02:00,914 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778409090909091 [2022-01-19 13:02:00,914 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 4017 transitions. [2022-01-19 13:02:00,914 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 4017 transitions. [2022-01-19 13:02:00,915 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:00,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 4017 transitions. [2022-01-19 13:02:00,917 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 251.0625) internal successors, (4017), 16 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:00,919 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:00,919 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 286.0) internal successors, (4862), 17 states have internal predecessors, (4862), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:00,919 INFO L186 Difference]: Start difference. First operand has 1201 places, 1115 transitions, 19566 flow. Second operand 16 states and 4017 transitions. [2022-01-19 13:02:00,919 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1214 places, 1166 transitions, 21554 flow [2022-01-19 13:02:02,858 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1212 places, 1166 transitions, 21376 flow, removed 89 selfloop flow, removed 2 redundant places. [2022-01-19 13:02:02,873 INFO L242 Difference]: Finished difference. Result has 1219 places, 1123 transitions, 19979 flow [2022-01-19 13:02:02,874 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=19390, PETRI_DIFFERENCE_MINUEND_PLACES=1197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=171, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=940, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=19979, PETRI_PLACES=1219, PETRI_TRANSITIONS=1123} [2022-01-19 13:02:02,874 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 963 predicate places. [2022-01-19 13:02:02,874 INFO L470 AbstractCegarLoop]: Abstraction has has 1219 places, 1123 transitions, 19979 flow [2022-01-19 13:02:02,875 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:02,875 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:02,875 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 13:02:02,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2022-01-19 13:02:02,875 INFO L402 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:02,875 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:02,875 INFO L85 PathProgramCache]: Analyzing trace with hash -192138724, now seen corresponding path program 19 times [2022-01-19 13:02:02,875 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:02,875 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421726992] [2022-01-19 13:02:02,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:02,876 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:02,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:02,965 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 13:02:02,965 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:02,965 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421726992] [2022-01-19 13:02:02,965 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421726992] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:02,965 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:02,965 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:02:02,965 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177899509] [2022-01-19 13:02:02,965 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:02,966 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:02:02,966 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:02,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:02:02,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:02:02,967 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:02:02,968 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1219 places, 1123 transitions, 19979 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:02,968 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:02,968 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:02:02,968 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:07,355 INFO L129 PetriNetUnfolder]: 1891/10729 cut-off events. [2022-01-19 13:02:07,355 INFO L130 PetriNetUnfolder]: For 151412/151583 co-relation queries the response was YES. [2022-01-19 13:02:07,621 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53544 conditions, 10729 events. 1891/10729 cut-off events. For 151412/151583 co-relation queries the response was YES. Maximal size of possible extension queue 994. Compared 151171 event pairs, 531 based on Foata normal form. 13/10543 useless extension candidates. Maximal degree in co-relation 53172. Up to 2636 conditions per place. [2022-01-19 13:02:07,652 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 585 selfloop transitions, 153 changer transitions 23/1172 dead transitions. [2022-01-19 13:02:07,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1234 places, 1172 transitions, 22084 flow [2022-01-19 13:02:07,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-01-19 13:02:07,652 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2022-01-19 13:02:07,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 4514 transitions. [2022-01-19 13:02:07,656 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8768453768453769 [2022-01-19 13:02:07,656 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 4514 transitions. [2022-01-19 13:02:07,656 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 4514 transitions. [2022-01-19 13:02:07,656 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:07,656 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 4514 transitions. [2022-01-19 13:02:07,659 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 250.77777777777777) internal successors, (4514), 18 states have internal predecessors, (4514), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:07,661 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:07,661 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 286.0) internal successors, (5434), 19 states have internal predecessors, (5434), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:07,661 INFO L186 Difference]: Start difference. First operand has 1219 places, 1123 transitions, 19979 flow. Second operand 18 states and 4514 transitions. [2022-01-19 13:02:07,661 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1234 places, 1172 transitions, 22084 flow [2022-01-19 13:02:09,590 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1229 places, 1172 transitions, 21779 flow, removed 36 selfloop flow, removed 5 redundant places. [2022-01-19 13:02:09,606 INFO L242 Difference]: Finished difference. Result has 1236 places, 1137 transitions, 20419 flow [2022-01-19 13:02:09,607 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=19692, PETRI_DIFFERENCE_MINUEND_PLACES=1212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1123, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=141, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=978, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=20419, PETRI_PLACES=1236, PETRI_TRANSITIONS=1137} [2022-01-19 13:02:09,607 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 980 predicate places. [2022-01-19 13:02:09,607 INFO L470 AbstractCegarLoop]: Abstraction has has 1236 places, 1137 transitions, 20419 flow [2022-01-19 13:02:09,607 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:09,607 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:09,608 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] [2022-01-19 13:02:09,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2022-01-19 13:02:09,608 INFO L402 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:09,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:09,608 INFO L85 PathProgramCache]: Analyzing trace with hash 704259706, now seen corresponding path program 20 times [2022-01-19 13:02:09,608 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:09,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455176809] [2022-01-19 13:02:09,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:09,608 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:09,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:09,683 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 13:02:09,683 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:09,683 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455176809] [2022-01-19 13:02:09,683 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [455176809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:09,683 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:09,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 13:02:09,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14827164] [2022-01-19 13:02:09,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:09,684 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 13:02:09,684 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:09,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 13:02:09,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2022-01-19 13:02:09,685 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 245 out of 286 [2022-01-19 13:02:09,686 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1236 places, 1137 transitions, 20419 flow. Second operand has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:09,686 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:09,686 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 245 of 286 [2022-01-19 13:02:09,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:14,100 INFO L129 PetriNetUnfolder]: 1891/10916 cut-off events. [2022-01-19 13:02:14,100 INFO L130 PetriNetUnfolder]: For 152977/153148 co-relation queries the response was YES. [2022-01-19 13:02:14,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53795 conditions, 10916 events. 1891/10916 cut-off events. For 152977/153148 co-relation queries the response was YES. Maximal size of possible extension queue 1005. Compared 154121 event pairs, 578 based on Foata normal form. 13/10738 useless extension candidates. Maximal degree in co-relation 53418. Up to 2632 conditions per place. [2022-01-19 13:02:14,570 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 605 selfloop transitions, 138 changer transitions 25/1179 dead transitions. [2022-01-19 13:02:14,570 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1250 places, 1179 transitions, 22357 flow [2022-01-19 13:02:14,570 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-01-19 13:02:14,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2022-01-19 13:02:14,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 4268 transitions. [2022-01-19 13:02:14,572 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8778280542986425 [2022-01-19 13:02:14,572 INFO L72 ComplementDD]: Start complementDD. Operand 17 states and 4268 transitions. [2022-01-19 13:02:14,572 INFO L73 IsDeterministic]: Start isDeterministic. Operand 17 states and 4268 transitions. [2022-01-19 13:02:14,572 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:14,572 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 17 states and 4268 transitions. [2022-01-19 13:02:14,575 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 18 states, 17 states have (on average 251.05882352941177) internal successors, (4268), 17 states have internal predecessors, (4268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:14,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:14,577 INFO L81 ComplementDD]: Finished complementDD. Result has 18 states, 18 states have (on average 286.0) internal successors, (5148), 18 states have internal predecessors, (5148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:14,577 INFO L186 Difference]: Start difference. First operand has 1236 places, 1137 transitions, 20419 flow. Second operand 17 states and 4268 transitions. [2022-01-19 13:02:14,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1250 places, 1179 transitions, 22357 flow [2022-01-19 13:02:16,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1246 places, 1179 transitions, 22167 flow, removed 57 selfloop flow, removed 4 redundant places. [2022-01-19 13:02:16,540 INFO L242 Difference]: Finished difference. Result has 1253 places, 1145 transitions, 20768 flow [2022-01-19 13:02:16,540 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20235, PETRI_DIFFERENCE_MINUEND_PLACES=1230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=131, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1002, PETRI_DIFFERENCE_SUBTRAHEND_STATES=17, PETRI_FLOW=20768, PETRI_PLACES=1253, PETRI_TRANSITIONS=1145} [2022-01-19 13:02:16,541 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 997 predicate places. [2022-01-19 13:02:16,541 INFO L470 AbstractCegarLoop]: Abstraction has has 1253 places, 1145 transitions, 20768 flow [2022-01-19 13:02:16,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 247.6) internal successors, (2476), 10 states have internal predecessors, (2476), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:16,541 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:16,541 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] [2022-01-19 13:02:16,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2022-01-19 13:02:16,541 INFO L402 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:16,542 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:16,542 INFO L85 PathProgramCache]: Analyzing trace with hash -2038128082, now seen corresponding path program 1 times [2022-01-19 13:02:16,542 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:16,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819181926] [2022-01-19 13:02:16,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:16,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:16,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:16,574 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 13:02:16,574 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:16,574 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819181926] [2022-01-19 13:02:16,574 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819181926] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:16,574 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:16,574 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:02:16,574 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [524722638] [2022-01-19 13:02:16,574 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:16,575 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:02:16,575 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:16,575 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:02:16,575 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:02:16,575 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 13:02:16,576 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1253 places, 1145 transitions, 20768 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:16,576 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:16,576 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 13:02:16,576 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:19,855 INFO L129 PetriNetUnfolder]: 1030/9683 cut-off events. [2022-01-19 13:02:19,855 INFO L130 PetriNetUnfolder]: For 131408/132185 co-relation queries the response was YES. [2022-01-19 13:02:20,115 INFO L84 FinitePrefix]: Finished finitePrefix Result has 43541 conditions, 9683 events. 1030/9683 cut-off events. For 131408/132185 co-relation queries the response was YES. Maximal size of possible extension queue 742. Compared 140130 event pairs, 25 based on Foata normal form. 22/9447 useless extension candidates. Maximal degree in co-relation 43160. Up to 538 conditions per place. [2022-01-19 13:02:20,144 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 15 selfloop transitions, 4 changer transitions 0/1152 dead transitions. [2022-01-19 13:02:20,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1253 places, 1152 transitions, 20825 flow [2022-01-19 13:02:20,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:02:20,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:02:20,145 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2022-01-19 13:02:20,145 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951048951048951 [2022-01-19 13:02:20,145 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 816 transitions. [2022-01-19 13:02:20,145 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 816 transitions. [2022-01-19 13:02:20,145 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:20,146 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 816 transitions. [2022-01-19 13:02:20,146 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:20,146 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:20,147 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:20,147 INFO L186 Difference]: Start difference. First operand has 1253 places, 1145 transitions, 20768 flow. Second operand 3 states and 816 transitions. [2022-01-19 13:02:20,147 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1253 places, 1152 transitions, 20825 flow [2022-01-19 13:02:22,022 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1250 places, 1152 transitions, 20648 flow, removed 52 selfloop flow, removed 3 redundant places. [2022-01-19 13:02:22,036 INFO L242 Difference]: Finished difference. Result has 1252 places, 1147 transitions, 20619 flow [2022-01-19 13:02:22,037 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20591, PETRI_DIFFERENCE_MINUEND_PLACES=1248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1145, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1141, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20619, PETRI_PLACES=1252, PETRI_TRANSITIONS=1147} [2022-01-19 13:02:22,037 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 996 predicate places. [2022-01-19 13:02:22,037 INFO L470 AbstractCegarLoop]: Abstraction has has 1252 places, 1147 transitions, 20619 flow [2022-01-19 13:02:22,037 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:22,037 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:22,038 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] [2022-01-19 13:02:22,038 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2022-01-19 13:02:22,038 INFO L402 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:22,038 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:22,038 INFO L85 PathProgramCache]: Analyzing trace with hash 1109948976, now seen corresponding path program 2 times [2022-01-19 13:02:22,038 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:22,038 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620452553] [2022-01-19 13:02:22,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:22,038 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:22,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:22,057 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 13:02:22,058 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:22,058 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620452553] [2022-01-19 13:02:22,058 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620452553] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:22,058 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:22,058 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:02:22,058 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571696896] [2022-01-19 13:02:22,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:22,058 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:02:22,058 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:22,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:02:22,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:02:22,060 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 286 [2022-01-19 13:02:22,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1252 places, 1147 transitions, 20619 flow. Second operand has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:22,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:22,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 286 [2022-01-19 13:02:22,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:24,852 INFO L129 PetriNetUnfolder]: 864/8186 cut-off events. [2022-01-19 13:02:24,852 INFO L130 PetriNetUnfolder]: For 105249/106012 co-relation queries the response was YES. [2022-01-19 13:02:25,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 36015 conditions, 8186 events. 864/8186 cut-off events. For 105249/106012 co-relation queries the response was YES. Maximal size of possible extension queue 618. Compared 114130 event pairs, 23 based on Foata normal form. 37/8007 useless extension candidates. Maximal degree in co-relation 35635. Up to 422 conditions per place. [2022-01-19 13:02:25,083 INFO L132 encePairwiseOnDemand]: 282/286 looper letters, 19 selfloop transitions, 2 changer transitions 0/1154 dead transitions. [2022-01-19 13:02:25,083 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1254 places, 1154 transitions, 20684 flow [2022-01-19 13:02:25,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:02:25,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:02:25,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 816 transitions. [2022-01-19 13:02:25,084 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.951048951048951 [2022-01-19 13:02:25,084 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 816 transitions. [2022-01-19 13:02:25,084 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 816 transitions. [2022-01-19 13:02:25,085 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:25,085 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 816 transitions. [2022-01-19 13:02:25,085 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 272.0) internal successors, (816), 3 states have internal predecessors, (816), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:25,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:25,086 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:25,086 INFO L186 Difference]: Start difference. First operand has 1252 places, 1147 transitions, 20619 flow. Second operand 3 states and 816 transitions. [2022-01-19 13:02:25,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1254 places, 1154 transitions, 20684 flow [2022-01-19 13:02:26,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1252 places, 1154 transitions, 20668 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-01-19 13:02:26,703 INFO L242 Difference]: Finished difference. Result has 1254 places, 1149 transitions, 20627 flow [2022-01-19 13:02:26,703 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20603, PETRI_DIFFERENCE_MINUEND_PLACES=1250, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1147, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20627, PETRI_PLACES=1254, PETRI_TRANSITIONS=1149} [2022-01-19 13:02:26,704 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 998 predicate places. [2022-01-19 13:02:26,704 INFO L470 AbstractCegarLoop]: Abstraction has has 1254 places, 1149 transitions, 20627 flow [2022-01-19 13:02:26,704 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 268.3333333333333) internal successors, (805), 3 states have internal predecessors, (805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:26,704 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:26,704 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] [2022-01-19 13:02:26,704 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2022-01-19 13:02:26,704 INFO L402 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:26,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:26,705 INFO L85 PathProgramCache]: Analyzing trace with hash 1357903948, now seen corresponding path program 1 times [2022-01-19 13:02:26,705 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:26,705 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1932730826] [2022-01-19 13:02:26,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:26,705 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:26,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:26,730 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 13:02:26,731 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:26,731 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1932730826] [2022-01-19 13:02:26,731 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1932730826] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:26,731 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:26,731 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:02:26,731 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283607206] [2022-01-19 13:02:26,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:26,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:02:26,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:26,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:02:26,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:02:26,732 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 13:02:26,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1254 places, 1149 transitions, 20627 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:26,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:26,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 13:02:26,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:30,355 INFO L129 PetriNetUnfolder]: 977/10078 cut-off events. [2022-01-19 13:02:30,355 INFO L130 PetriNetUnfolder]: For 111108/111957 co-relation queries the response was YES. [2022-01-19 13:02:30,620 INFO L84 FinitePrefix]: Finished finitePrefix Result has 40201 conditions, 10078 events. 977/10078 cut-off events. For 111108/111957 co-relation queries the response was YES. Maximal size of possible extension queue 715. Compared 144314 event pairs, 66 based on Foata normal form. 101/9811 useless extension candidates. Maximal degree in co-relation 39820. Up to 561 conditions per place. [2022-01-19 13:02:30,645 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 20 selfloop transitions, 4 changer transitions 2/1157 dead transitions. [2022-01-19 13:02:30,645 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1256 places, 1157 transitions, 20695 flow [2022-01-19 13:02:30,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:02:30,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:02:30,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 13:02:30,646 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 13:02:30,646 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 13:02:30,646 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 13:02:30,646 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:30,646 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 13:02:30,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:30,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:30,647 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:30,647 INFO L186 Difference]: Start difference. First operand has 1254 places, 1149 transitions, 20627 flow. Second operand 3 states and 811 transitions. [2022-01-19 13:02:30,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1256 places, 1157 transitions, 20695 flow [2022-01-19 13:02:32,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1255 places, 1157 transitions, 20689 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 13:02:32,327 INFO L242 Difference]: Finished difference. Result has 1257 places, 1151 transitions, 20653 flow [2022-01-19 13:02:32,327 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20621, PETRI_DIFFERENCE_MINUEND_PLACES=1253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20653, PETRI_PLACES=1257, PETRI_TRANSITIONS=1151} [2022-01-19 13:02:32,328 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1001 predicate places. [2022-01-19 13:02:32,328 INFO L470 AbstractCegarLoop]: Abstraction has has 1257 places, 1151 transitions, 20653 flow [2022-01-19 13:02:32,328 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:32,328 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:32,328 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] [2022-01-19 13:02:32,328 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2022-01-19 13:02:32,328 INFO L402 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:32,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:32,329 INFO L85 PathProgramCache]: Analyzing trace with hash -1001247616, now seen corresponding path program 1 times [2022-01-19 13:02:32,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:32,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359173468] [2022-01-19 13:02:32,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:32,329 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:32,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:32,346 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 13:02:32,346 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:32,346 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359173468] [2022-01-19 13:02:32,346 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359173468] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:32,346 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:32,346 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:02:32,346 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978816382] [2022-01-19 13:02:32,347 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:32,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:02:32,347 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:32,347 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:02:32,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:02:32,347 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 261 out of 286 [2022-01-19 13:02:32,348 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1257 places, 1151 transitions, 20653 flow. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:32,348 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:32,348 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 261 of 286 [2022-01-19 13:02:32,348 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:35,621 INFO L129 PetriNetUnfolder]: 946/9148 cut-off events. [2022-01-19 13:02:35,622 INFO L130 PetriNetUnfolder]: For 109917/110725 co-relation queries the response was YES. [2022-01-19 13:02:35,842 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38561 conditions, 9148 events. 946/9148 cut-off events. For 109917/110725 co-relation queries the response was YES. Maximal size of possible extension queue 675. Compared 128920 event pairs, 48 based on Foata normal form. 77/8954 useless extension candidates. Maximal degree in co-relation 38179. Up to 545 conditions per place. [2022-01-19 13:02:35,866 INFO L132 encePairwiseOnDemand]: 276/286 looper letters, 22 selfloop transitions, 6 changer transitions 0/1159 dead transitions. [2022-01-19 13:02:35,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1259 places, 1159 transitions, 20737 flow [2022-01-19 13:02:35,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:02:35,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:02:35,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 811 transitions. [2022-01-19 13:02:35,867 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9452214452214452 [2022-01-19 13:02:35,867 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 811 transitions. [2022-01-19 13:02:35,867 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 811 transitions. [2022-01-19 13:02:35,867 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:35,867 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 811 transitions. [2022-01-19 13:02:35,868 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 270.3333333333333) internal successors, (811), 3 states have internal predecessors, (811), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:35,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:35,868 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:35,868 INFO L186 Difference]: Start difference. First operand has 1257 places, 1151 transitions, 20653 flow. Second operand 3 states and 811 transitions. [2022-01-19 13:02:35,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1259 places, 1159 transitions, 20737 flow [2022-01-19 13:02:37,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1258 places, 1159 transitions, 20733 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 13:02:37,444 INFO L242 Difference]: Finished difference. Result has 1260 places, 1155 transitions, 20705 flow [2022-01-19 13:02:37,444 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20649, PETRI_DIFFERENCE_MINUEND_PLACES=1256, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1151, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=20705, PETRI_PLACES=1260, PETRI_TRANSITIONS=1155} [2022-01-19 13:02:37,445 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1004 predicate places. [2022-01-19 13:02:37,445 INFO L470 AbstractCegarLoop]: Abstraction has has 1260 places, 1155 transitions, 20705 flow [2022-01-19 13:02:37,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:37,445 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:37,446 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] [2022-01-19 13:02:37,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2022-01-19 13:02:37,446 INFO L402 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:37,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:37,446 INFO L85 PathProgramCache]: Analyzing trace with hash -1396385364, now seen corresponding path program 1 times [2022-01-19 13:02:37,446 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:37,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595042255] [2022-01-19 13:02:37,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:37,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:37,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:37,492 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 13:02:37,492 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:37,492 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595042255] [2022-01-19 13:02:37,492 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595042255] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:37,492 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:37,493 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 13:02:37,493 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1637946660] [2022-01-19 13:02:37,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:37,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 13:02:37,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:37,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 13:02:37,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2022-01-19 13:02:37,494 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 247 out of 286 [2022-01-19 13:02:37,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1260 places, 1155 transitions, 20705 flow. Second operand has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 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 13:02:37,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:37,495 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 247 of 286 [2022-01-19 13:02:37,495 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:02:41,916 INFO L129 PetriNetUnfolder]: 1235/11962 cut-off events. [2022-01-19 13:02:41,916 INFO L130 PetriNetUnfolder]: For 153387/155476 co-relation queries the response was YES. [2022-01-19 13:02:42,208 INFO L84 FinitePrefix]: Finished finitePrefix Result has 51798 conditions, 11962 events. 1235/11962 cut-off events. For 153387/155476 co-relation queries the response was YES. Maximal size of possible extension queue 729. Compared 170538 event pairs, 50 based on Foata normal form. 176/11916 useless extension candidates. Maximal degree in co-relation 51415. Up to 713 conditions per place. [2022-01-19 13:02:42,234 INFO L132 encePairwiseOnDemand]: 273/286 looper letters, 45 selfloop transitions, 9 changer transitions 11/1191 dead transitions. [2022-01-19 13:02:42,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1274 places, 1191 transitions, 20934 flow [2022-01-19 13:02:42,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 13:02:42,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 13:02:42,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 3770 transitions. [2022-01-19 13:02:42,236 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8787878787878788 [2022-01-19 13:02:42,236 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 3770 transitions. [2022-01-19 13:02:42,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 3770 transitions. [2022-01-19 13:02:42,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:02:42,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 3770 transitions. [2022-01-19 13:02:42,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 251.33333333333334) internal successors, (3770), 15 states have internal predecessors, (3770), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:42,240 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:42,240 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 286.0) internal successors, (4576), 16 states have internal predecessors, (4576), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:42,240 INFO L186 Difference]: Start difference. First operand has 1260 places, 1155 transitions, 20705 flow. Second operand 15 states and 3770 transitions. [2022-01-19 13:02:42,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1274 places, 1191 transitions, 20934 flow [2022-01-19 13:02:44,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1272 places, 1191 transitions, 20914 flow, removed 4 selfloop flow, removed 2 redundant places. [2022-01-19 13:02:44,422 INFO L242 Difference]: Finished difference. Result has 1283 places, 1160 transitions, 20745 flow [2022-01-19 13:02:44,423 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20685, PETRI_DIFFERENCE_MINUEND_PLACES=1258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=20745, PETRI_PLACES=1283, PETRI_TRANSITIONS=1160} [2022-01-19 13:02:44,423 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1027 predicate places. [2022-01-19 13:02:44,423 INFO L470 AbstractCegarLoop]: Abstraction has has 1283 places, 1160 transitions, 20745 flow [2022-01-19 13:02:44,424 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 249.66666666666666) internal successors, (2247), 9 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 13:02:44,424 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:02:44,424 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] [2022-01-19 13:02:44,424 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2022-01-19 13:02:44,424 INFO L402 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:02:44,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:02:44,424 INFO L85 PathProgramCache]: Analyzing trace with hash 958013994, now seen corresponding path program 1 times [2022-01-19 13:02:44,424 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:02:44,424 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60498345] [2022-01-19 13:02:44,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:02:44,424 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:02:44,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:02:44,525 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 13:02:44,525 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:02:44,525 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60498345] [2022-01-19 13:02:44,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [60498345] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:02:44,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:02:44,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:02:44,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323777777] [2022-01-19 13:02:44,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:02:44,526 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:02:44,526 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:02:44,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:02:44,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:02:44,528 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:02:44,529 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1283 places, 1160 transitions, 20745 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:02:44,529 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:02:44,529 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:02:44,529 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:03:00,218 INFO L129 PetriNetUnfolder]: 10980/32620 cut-off events. [2022-01-19 13:03:00,219 INFO L130 PetriNetUnfolder]: For 349372/349687 co-relation queries the response was YES. [2022-01-19 13:03:03,042 INFO L84 FinitePrefix]: Finished finitePrefix Result has 136913 conditions, 32620 events. 10980/32620 cut-off events. For 349372/349687 co-relation queries the response was YES. Maximal size of possible extension queue 2678. Compared 450283 event pairs, 6839 based on Foata normal form. 51/30435 useless extension candidates. Maximal degree in co-relation 136519. Up to 18732 conditions per place. [2022-01-19 13:03:03,118 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 884 selfloop transitions, 90 changer transitions 58/1446 dead transitions. [2022-01-19 13:03:03,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1333 places, 1446 transitions, 24846 flow [2022-01-19 13:03:03,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-19 13:03:03,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2022-01-19 13:03:03,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 13825 transitions. [2022-01-19 13:03:03,123 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8334338075717386 [2022-01-19 13:03:03,123 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 13825 transitions. [2022-01-19 13:03:03,123 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 13825 transitions. [2022-01-19 13:03:03,125 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:03:03,125 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 13825 transitions. [2022-01-19 13:03:03,132 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 238.36206896551724) internal successors, (13825), 58 states have internal predecessors, (13825), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:03,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:03,141 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:03,141 INFO L186 Difference]: Start difference. First operand has 1283 places, 1160 transitions, 20745 flow. Second operand 58 states and 13825 transitions. [2022-01-19 13:03:03,141 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1333 places, 1446 transitions, 24846 flow [2022-01-19 13:03:07,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1328 places, 1446 transitions, 24825 flow, removed 10 selfloop flow, removed 5 redundant places. [2022-01-19 13:03:07,971 INFO L242 Difference]: Finished difference. Result has 1380 places, 1249 transitions, 21643 flow [2022-01-19 13:03:07,972 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=20732, PETRI_DIFFERENCE_MINUEND_PLACES=1271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=21643, PETRI_PLACES=1380, PETRI_TRANSITIONS=1249} [2022-01-19 13:03:07,972 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1124 predicate places. [2022-01-19 13:03:07,972 INFO L470 AbstractCegarLoop]: Abstraction has has 1380 places, 1249 transitions, 21643 flow [2022-01-19 13:03:07,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:07,973 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:03:07,973 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] [2022-01-19 13:03:07,973 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2022-01-19 13:03:07,973 INFO L402 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:03:07,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:03:07,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1933941778, now seen corresponding path program 1 times [2022-01-19 13:03:07,973 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:03:07,974 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1234250745] [2022-01-19 13:03:07,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:03:07,974 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:03:07,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:03:08,063 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 13:03:08,063 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:03:08,063 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1234250745] [2022-01-19 13:03:08,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1234250745] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:03:08,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:03:08,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:03:08,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300253527] [2022-01-19 13:03:08,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:03:08,064 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:03:08,064 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:03:08,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:03:08,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:03:08,065 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:03:08,066 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1380 places, 1249 transitions, 21643 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:08,066 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:03:08,066 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:03:08,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:03:26,131 INFO L129 PetriNetUnfolder]: 11680/34679 cut-off events. [2022-01-19 13:03:26,131 INFO L130 PetriNetUnfolder]: For 491827/492152 co-relation queries the response was YES. [2022-01-19 13:03:29,692 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181509 conditions, 34679 events. 11680/34679 cut-off events. For 491827/492152 co-relation queries the response was YES. Maximal size of possible extension queue 2860. Compared 479075 event pairs, 4623 based on Foata normal form. 65/32473 useless extension candidates. Maximal degree in co-relation 181067. Up to 15620 conditions per place. [2022-01-19 13:03:29,773 INFO L132 encePairwiseOnDemand]: 263/286 looper letters, 607 selfloop transitions, 164 changer transitions 512/1522 dead transitions. [2022-01-19 13:03:29,773 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1411 places, 1522 transitions, 27230 flow [2022-01-19 13:03:29,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-01-19 13:03:29,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2022-01-19 13:03:29,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 8197 transitions. [2022-01-19 13:03:29,776 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.84296585767174 [2022-01-19 13:03:29,776 INFO L72 ComplementDD]: Start complementDD. Operand 34 states and 8197 transitions. [2022-01-19 13:03:29,777 INFO L73 IsDeterministic]: Start isDeterministic. Operand 34 states and 8197 transitions. [2022-01-19 13:03:29,777 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:03:29,777 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 34 states and 8197 transitions. [2022-01-19 13:03:29,781 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 35 states, 34 states have (on average 241.08823529411765) internal successors, (8197), 34 states have internal predecessors, (8197), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:29,785 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:29,785 INFO L81 ComplementDD]: Finished complementDD. Result has 35 states, 35 states have (on average 286.0) internal successors, (10010), 35 states have internal predecessors, (10010), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:29,786 INFO L186 Difference]: Start difference. First operand has 1380 places, 1249 transitions, 21643 flow. Second operand 34 states and 8197 transitions. [2022-01-19 13:03:29,786 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1411 places, 1522 transitions, 27230 flow [2022-01-19 13:03:38,667 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1409 places, 1522 transitions, 26916 flow, removed 157 selfloop flow, removed 2 redundant places. [2022-01-19 13:03:38,683 INFO L242 Difference]: Finished difference. Result has 1439 places, 896 transitions, 13786 flow [2022-01-19 13:03:38,684 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=21373, PETRI_DIFFERENCE_MINUEND_PLACES=1376, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=13786, PETRI_PLACES=1439, PETRI_TRANSITIONS=896} [2022-01-19 13:03:38,684 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1183 predicate places. [2022-01-19 13:03:38,684 INFO L470 AbstractCegarLoop]: Abstraction has has 1439 places, 896 transitions, 13786 flow [2022-01-19 13:03:38,684 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:38,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:03:38,684 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] [2022-01-19 13:03:38,685 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2022-01-19 13:03:38,685 INFO L402 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:03:38,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:03:38,685 INFO L85 PathProgramCache]: Analyzing trace with hash 935926426, now seen corresponding path program 1 times [2022-01-19 13:03:38,685 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:03:38,685 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095987869] [2022-01-19 13:03:38,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:03:38,685 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:03:38,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:03:38,703 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 13:03:38,703 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:03:38,703 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095987869] [2022-01-19 13:03:38,703 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095987869] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:03:38,703 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:03:38,703 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:03:38,703 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033426806] [2022-01-19 13:03:38,703 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:03:38,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:03:38,704 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:03:38,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:03:38,704 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:03:38,704 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 13:03:38,705 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1439 places, 896 transitions, 13786 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:38,705 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:03:38,705 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 13:03:38,705 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:03:44,095 INFO L129 PetriNetUnfolder]: 1735/11819 cut-off events. [2022-01-19 13:03:44,095 INFO L130 PetriNetUnfolder]: For 207311/208965 co-relation queries the response was YES. [2022-01-19 13:03:44,480 INFO L84 FinitePrefix]: Finished finitePrefix Result has 63147 conditions, 11819 events. 1735/11819 cut-off events. For 207311/208965 co-relation queries the response was YES. Maximal size of possible extension queue 677. Compared 158953 event pairs, 346 based on Foata normal form. 170/11503 useless extension candidates. Maximal degree in co-relation 62676. Up to 1401 conditions per place. [2022-01-19 13:03:44,511 INFO L132 encePairwiseOnDemand]: 280/286 looper letters, 19 selfloop transitions, 3 changer transitions 0/904 dead transitions. [2022-01-19 13:03:44,512 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1133 places, 904 transitions, 13851 flow [2022-01-19 13:03:44,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:03:44,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:03:44,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 13:03:44,512 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 13:03:44,512 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 13:03:44,513 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 13:03:44,513 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:03:44,513 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 13:03:44,513 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:44,514 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:44,514 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:44,514 INFO L186 Difference]: Start difference. First operand has 1439 places, 896 transitions, 13786 flow. Second operand 3 states and 814 transitions. [2022-01-19 13:03:44,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1133 places, 904 transitions, 13851 flow [2022-01-19 13:03:47,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1009 places, 904 transitions, 12128 flow, removed 700 selfloop flow, removed 124 redundant places. [2022-01-19 13:03:47,726 INFO L242 Difference]: Finished difference. Result has 1011 places, 899 transitions, 12093 flow [2022-01-19 13:03:47,727 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12063, PETRI_DIFFERENCE_MINUEND_PLACES=1007, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=896, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=893, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=12093, PETRI_PLACES=1011, PETRI_TRANSITIONS=899} [2022-01-19 13:03:47,727 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 755 predicate places. [2022-01-19 13:03:47,727 INFO L470 AbstractCegarLoop]: Abstraction has has 1011 places, 899 transitions, 12093 flow [2022-01-19 13:03:47,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:47,727 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:03:47,727 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] [2022-01-19 13:03:47,727 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2022-01-19 13:03:47,727 INFO L402 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:03:47,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:03:47,728 INFO L85 PathProgramCache]: Analyzing trace with hash 782012990, now seen corresponding path program 2 times [2022-01-19 13:03:47,728 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:03:47,728 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978671617] [2022-01-19 13:03:47,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:03:47,728 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:03:47,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:03:47,746 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 13:03:47,746 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:03:47,746 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978671617] [2022-01-19 13:03:47,746 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [978671617] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:03:47,746 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:03:47,746 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 13:03:47,746 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827426158] [2022-01-19 13:03:47,746 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:03:47,747 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 13:03:47,747 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:03:47,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 13:03:47,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 13:03:47,748 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 263 out of 286 [2022-01-19 13:03:47,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1011 places, 899 transitions, 12093 flow. Second operand has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:47,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:03:47,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 263 of 286 [2022-01-19 13:03:47,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:03:51,629 INFO L129 PetriNetUnfolder]: 1686/11920 cut-off events. [2022-01-19 13:03:51,630 INFO L130 PetriNetUnfolder]: For 133166/134351 co-relation queries the response was YES. [2022-01-19 13:03:51,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53404 conditions, 11920 events. 1686/11920 cut-off events. For 133166/134351 co-relation queries the response was YES. Maximal size of possible extension queue 661. Compared 159752 event pairs, 398 based on Foata normal form. 181/11634 useless extension candidates. Maximal degree in co-relation 53045. Up to 1219 conditions per place. [2022-01-19 13:03:51,976 INFO L132 encePairwiseOnDemand]: 278/286 looper letters, 20 selfloop transitions, 5 changer transitions 0/907 dead transitions. [2022-01-19 13:03:51,976 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1013 places, 907 transitions, 12170 flow [2022-01-19 13:03:51,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 13:03:51,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 13:03:51,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 814 transitions. [2022-01-19 13:03:51,977 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9487179487179487 [2022-01-19 13:03:51,977 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 814 transitions. [2022-01-19 13:03:51,977 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 814 transitions. [2022-01-19 13:03:51,977 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:03:51,977 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 814 transitions. [2022-01-19 13:03:51,978 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 271.3333333333333) internal successors, (814), 3 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:51,978 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:51,978 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 286.0) internal successors, (1144), 4 states have internal predecessors, (1144), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:51,978 INFO L186 Difference]: Start difference. First operand has 1011 places, 899 transitions, 12093 flow. Second operand 3 states and 814 transitions. [2022-01-19 13:03:51,978 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1013 places, 907 transitions, 12170 flow [2022-01-19 13:03:53,871 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1011 places, 907 transitions, 12151 flow, removed 8 selfloop flow, removed 2 redundant places. [2022-01-19 13:03:53,881 INFO L242 Difference]: Finished difference. Result has 1013 places, 902 transitions, 12118 flow [2022-01-19 13:03:53,882 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12074, PETRI_DIFFERENCE_MINUEND_PLACES=1009, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=899, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=894, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=12118, PETRI_PLACES=1013, PETRI_TRANSITIONS=902} [2022-01-19 13:03:53,882 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 757 predicate places. [2022-01-19 13:03:53,882 INFO L470 AbstractCegarLoop]: Abstraction has has 1013 places, 902 transitions, 12118 flow [2022-01-19 13:03:53,882 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.3333333333333) internal successors, (799), 3 states have internal predecessors, (799), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:53,882 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:03:53,882 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] [2022-01-19 13:03:53,882 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2022-01-19 13:03:53,882 INFO L402 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:03:53,883 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:03:53,883 INFO L85 PathProgramCache]: Analyzing trace with hash -1843078578, now seen corresponding path program 2 times [2022-01-19 13:03:53,883 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:03:53,883 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729751785] [2022-01-19 13:03:53,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:03:53,883 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:03:53,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:03:53,982 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 13:03:53,982 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:03:53,982 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729751785] [2022-01-19 13:03:53,982 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729751785] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:03:53,982 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:03:53,982 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:03:53,982 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576643173] [2022-01-19 13:03:53,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:03:53,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:03:53,982 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:03:53,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:03:53,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:03:53,984 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:03:53,986 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1013 places, 902 transitions, 12118 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:03:53,986 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:03:53,986 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:03:53,986 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:04:06,628 INFO L129 PetriNetUnfolder]: 10121/30175 cut-off events. [2022-01-19 13:04:06,629 INFO L130 PetriNetUnfolder]: For 396848/398074 co-relation queries the response was YES. [2022-01-19 13:04:08,515 INFO L84 FinitePrefix]: Finished finitePrefix Result has 159880 conditions, 30175 events. 10121/30175 cut-off events. For 396848/398074 co-relation queries the response was YES. Maximal size of possible extension queue 2763. Compared 413645 event pairs, 5772 based on Foata normal form. 6/28240 useless extension candidates. Maximal degree in co-relation 159521. Up to 17092 conditions per place. [2022-01-19 13:04:08,746 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 812 selfloop transitions, 137 changer transitions 62/1256 dead transitions. [2022-01-19 13:04:08,747 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1070 places, 1256 transitions, 17254 flow [2022-01-19 13:04:08,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 58 states. [2022-01-19 13:04:08,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 58 states. [2022-01-19 13:04:08,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 13829 transitions. [2022-01-19 13:04:08,752 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8336749457439112 [2022-01-19 13:04:08,752 INFO L72 ComplementDD]: Start complementDD. Operand 58 states and 13829 transitions. [2022-01-19 13:04:08,752 INFO L73 IsDeterministic]: Start isDeterministic. Operand 58 states and 13829 transitions. [2022-01-19 13:04:08,753 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:04:08,753 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 58 states and 13829 transitions. [2022-01-19 13:04:08,761 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 59 states, 58 states have (on average 238.43103448275863) internal successors, (13829), 58 states have internal predecessors, (13829), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:08,767 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:08,768 INFO L81 ComplementDD]: Finished complementDD. Result has 59 states, 59 states have (on average 286.0) internal successors, (16874), 59 states have internal predecessors, (16874), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:08,768 INFO L186 Difference]: Start difference. First operand has 1013 places, 902 transitions, 12118 flow. Second operand 58 states and 13829 transitions. [2022-01-19 13:04:08,768 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1070 places, 1256 transitions, 17254 flow [2022-01-19 13:04:14,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1068 places, 1256 transitions, 17238 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-01-19 13:04:14,366 INFO L242 Difference]: Finished difference. Result has 1119 places, 991 transitions, 13696 flow [2022-01-19 13:04:14,367 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=12102, PETRI_DIFFERENCE_MINUEND_PLACES=1011, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=902, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=837, PETRI_DIFFERENCE_SUBTRAHEND_STATES=58, PETRI_FLOW=13696, PETRI_PLACES=1119, PETRI_TRANSITIONS=991} [2022-01-19 13:04:14,367 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 863 predicate places. [2022-01-19 13:04:14,367 INFO L470 AbstractCegarLoop]: Abstraction has has 1119 places, 991 transitions, 13696 flow [2022-01-19 13:04:14,368 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:14,368 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:04:14,368 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] [2022-01-19 13:04:14,368 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2022-01-19 13:04:14,368 INFO L402 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:04:14,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:04:14,368 INFO L85 PathProgramCache]: Analyzing trace with hash -552655926, now seen corresponding path program 3 times [2022-01-19 13:04:14,368 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:04:14,368 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459534070] [2022-01-19 13:04:14,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:04:14,369 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:04:14,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:04:14,480 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 13:04:14,480 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:04:14,480 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459534070] [2022-01-19 13:04:14,480 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459534070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:04:14,480 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:04:14,480 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:04:14,480 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614166887] [2022-01-19 13:04:14,480 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:04:14,481 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:04:14,481 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:04:14,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:04:14,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=153, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:04:14,482 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:04:14,483 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1119 places, 991 transitions, 13696 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:14,483 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:04:14,483 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:04:14,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:04:29,312 INFO L129 PetriNetUnfolder]: 10667/31677 cut-off events. [2022-01-19 13:04:29,312 INFO L130 PetriNetUnfolder]: For 487416/488641 co-relation queries the response was YES. [2022-01-19 13:04:32,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 182553 conditions, 31677 events. 10667/31677 cut-off events. For 487416/488641 co-relation queries the response was YES. Maximal size of possible extension queue 2882. Compared 434811 event pairs, 6131 based on Foata normal form. 28/29688 useless extension candidates. Maximal degree in co-relation 182143. Up to 17565 conditions per place. [2022-01-19 13:04:32,489 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 781 selfloop transitions, 116 changer transitions 21/1163 dead transitions. [2022-01-19 13:04:32,490 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1144 places, 1163 transitions, 18023 flow [2022-01-19 13:04:32,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-19 13:04:32,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2022-01-19 13:04:32,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 6716 transitions. [2022-01-19 13:04:32,492 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8386613386613386 [2022-01-19 13:04:32,492 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 6716 transitions. [2022-01-19 13:04:32,492 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 6716 transitions. [2022-01-19 13:04:32,493 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:04:32,493 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 6716 transitions. [2022-01-19 13:04:32,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 239.85714285714286) internal successors, (6716), 28 states have internal predecessors, (6716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:32,499 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 286.0) internal successors, (8294), 29 states have internal predecessors, (8294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:32,500 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 286.0) internal successors, (8294), 29 states have internal predecessors, (8294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:32,500 INFO L186 Difference]: Start difference. First operand has 1119 places, 991 transitions, 13696 flow. Second operand 28 states and 6716 transitions. [2022-01-19 13:04:32,500 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1144 places, 1163 transitions, 18023 flow [2022-01-19 13:04:41,910 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1142 places, 1163 transitions, 17345 flow, removed 339 selfloop flow, removed 2 redundant places. [2022-01-19 13:04:41,928 INFO L242 Difference]: Finished difference. Result has 1159 places, 1045 transitions, 14495 flow [2022-01-19 13:04:41,929 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13126, PETRI_DIFFERENCE_MINUEND_PLACES=1115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=991, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=909, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=14495, PETRI_PLACES=1159, PETRI_TRANSITIONS=1045} [2022-01-19 13:04:41,930 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 903 predicate places. [2022-01-19 13:04:41,930 INFO L470 AbstractCegarLoop]: Abstraction has has 1159 places, 1045 transitions, 14495 flow [2022-01-19 13:04:41,931 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:41,931 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:04:41,931 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] [2022-01-19 13:04:41,931 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2022-01-19 13:04:41,931 INFO L402 AbstractCegarLoop]: === Iteration 62 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:04:41,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:04:41,931 INFO L85 PathProgramCache]: Analyzing trace with hash -1184901988, now seen corresponding path program 4 times [2022-01-19 13:04:41,931 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:04:41,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486962121] [2022-01-19 13:04:41,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:04:41,932 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:04:41,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:04:42,040 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 13:04:42,041 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:04:42,041 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486962121] [2022-01-19 13:04:42,041 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486962121] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:04:42,041 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:04:42,041 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:04:42,041 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350246566] [2022-01-19 13:04:42,041 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:04:42,041 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:04:42,041 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:04:42,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:04:42,042 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=156, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:04:42,043 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:04:42,044 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1159 places, 1045 transitions, 14495 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:04:42,044 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:04:42,044 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:04:42,045 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:05:00,129 INFO L129 PetriNetUnfolder]: 11396/33473 cut-off events. [2022-01-19 13:05:00,129 INFO L130 PetriNetUnfolder]: For 467396/468651 co-relation queries the response was YES. [2022-01-19 13:05:03,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185278 conditions, 33473 events. 11396/33473 cut-off events. For 467396/468651 co-relation queries the response was YES. Maximal size of possible extension queue 3017. Compared 462516 event pairs, 6379 based on Foata normal form. 2/31449 useless extension candidates. Maximal degree in co-relation 184852. Up to 17716 conditions per place. [2022-01-19 13:05:03,115 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 865 selfloop transitions, 126 changer transitions 53/1289 dead transitions. [2022-01-19 13:05:03,116 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1207 places, 1289 transitions, 20251 flow [2022-01-19 13:05:03,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2022-01-19 13:05:03,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2022-01-19 13:05:03,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 12163 transitions. [2022-01-19 13:05:03,120 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8338818044700398 [2022-01-19 13:05:03,120 INFO L72 ComplementDD]: Start complementDD. Operand 51 states and 12163 transitions. [2022-01-19 13:05:03,120 INFO L73 IsDeterministic]: Start isDeterministic. Operand 51 states and 12163 transitions. [2022-01-19 13:05:03,121 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:05:03,121 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 51 states and 12163 transitions. [2022-01-19 13:05:03,127 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 52 states, 51 states have (on average 238.49019607843138) internal successors, (12163), 51 states have internal predecessors, (12163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:03,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 52 states, 52 states have (on average 286.0) internal successors, (14872), 52 states have internal predecessors, (14872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:03,133 INFO L81 ComplementDD]: Finished complementDD. Result has 52 states, 52 states have (on average 286.0) internal successors, (14872), 52 states have internal predecessors, (14872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:03,133 INFO L186 Difference]: Start difference. First operand has 1159 places, 1045 transitions, 14495 flow. Second operand 51 states and 12163 transitions. [2022-01-19 13:05:03,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1207 places, 1289 transitions, 20251 flow [2022-01-19 13:05:10,321 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1205 places, 1289 transitions, 19213 flow, removed 519 selfloop flow, removed 2 redundant places. [2022-01-19 13:05:10,336 INFO L242 Difference]: Finished difference. Result has 1248 places, 1142 transitions, 16267 flow [2022-01-19 13:05:10,336 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=13941, PETRI_DIFFERENCE_MINUEND_PLACES=1155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1045, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=988, PETRI_DIFFERENCE_SUBTRAHEND_STATES=51, PETRI_FLOW=16267, PETRI_PLACES=1248, PETRI_TRANSITIONS=1142} [2022-01-19 13:05:10,337 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 992 predicate places. [2022-01-19 13:05:10,337 INFO L470 AbstractCegarLoop]: Abstraction has has 1248 places, 1142 transitions, 16267 flow [2022-01-19 13:05:10,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:10,337 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:05:10,337 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] [2022-01-19 13:05:10,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2022-01-19 13:05:10,337 INFO L402 AbstractCegarLoop]: === Iteration 63 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:05:10,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:05:10,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2043682932, now seen corresponding path program 5 times [2022-01-19 13:05:10,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:05:10,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [977638294] [2022-01-19 13:05:10,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:05:10,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:05:10,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:05:10,435 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 13:05:10,435 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:05:10,436 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [977638294] [2022-01-19 13:05:10,436 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [977638294] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:05:10,436 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:05:10,436 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:05:10,436 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045195243] [2022-01-19 13:05:10,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:05:10,436 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:05:10,436 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:05:10,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:05:10,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:05:10,438 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:05:10,439 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1248 places, 1142 transitions, 16267 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:10,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:05:10,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:05:10,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:05:28,456 INFO L129 PetriNetUnfolder]: 11573/34062 cut-off events. [2022-01-19 13:05:28,456 INFO L130 PetriNetUnfolder]: For 517066/518323 co-relation queries the response was YES. [2022-01-19 13:05:32,661 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192877 conditions, 34062 events. 11573/34062 cut-off events. For 517066/518323 co-relation queries the response was YES. Maximal size of possible extension queue 3094. Compared 472409 event pairs, 6234 based on Foata normal form. 33/32092 useless extension candidates. Maximal degree in co-relation 192409. Up to 17947 conditions per place. [2022-01-19 13:05:32,754 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 869 selfloop transitions, 188 changer transitions 36/1338 dead transitions. [2022-01-19 13:05:32,755 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1287 places, 1338 transitions, 21469 flow [2022-01-19 13:05:32,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-01-19 13:05:32,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2022-01-19 13:05:32,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 10023 transitions. [2022-01-19 13:05:32,758 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8344155844155844 [2022-01-19 13:05:32,758 INFO L72 ComplementDD]: Start complementDD. Operand 42 states and 10023 transitions. [2022-01-19 13:05:32,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 42 states and 10023 transitions. [2022-01-19 13:05:32,760 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:05:32,760 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 42 states and 10023 transitions. [2022-01-19 13:05:32,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 43 states, 42 states have (on average 238.64285714285714) internal successors, (10023), 42 states have internal predecessors, (10023), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:32,769 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 43 states, 43 states have (on average 286.0) internal successors, (12298), 43 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:32,770 INFO L81 ComplementDD]: Finished complementDD. Result has 43 states, 43 states have (on average 286.0) internal successors, (12298), 43 states have internal predecessors, (12298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:32,770 INFO L186 Difference]: Start difference. First operand has 1248 places, 1142 transitions, 16267 flow. Second operand 42 states and 10023 transitions. [2022-01-19 13:05:32,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1287 places, 1338 transitions, 21469 flow [2022-01-19 13:05:41,248 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1285 places, 1338 transitions, 20065 flow, removed 702 selfloop flow, removed 2 redundant places. [2022-01-19 13:05:41,263 INFO L242 Difference]: Finished difference. Result has 1314 places, 1202 transitions, 16776 flow [2022-01-19 13:05:41,264 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=15169, PETRI_DIFFERENCE_MINUEND_PLACES=1244, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1142, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1001, PETRI_DIFFERENCE_SUBTRAHEND_STATES=42, PETRI_FLOW=16776, PETRI_PLACES=1314, PETRI_TRANSITIONS=1202} [2022-01-19 13:05:41,264 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1058 predicate places. [2022-01-19 13:05:41,264 INFO L470 AbstractCegarLoop]: Abstraction has has 1314 places, 1202 transitions, 16776 flow [2022-01-19 13:05:41,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:41,264 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:05:41,265 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] [2022-01-19 13:05:41,265 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2022-01-19 13:05:41,265 INFO L402 AbstractCegarLoop]: === Iteration 64 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:05:41,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:05:41,265 INFO L85 PathProgramCache]: Analyzing trace with hash -352823078, now seen corresponding path program 6 times [2022-01-19 13:05:41,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:05:41,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640499549] [2022-01-19 13:05:41,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:05:41,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:05:41,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:05:41,370 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 13:05:41,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:05:41,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640499549] [2022-01-19 13:05:41,371 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640499549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:05:41,371 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:05:41,371 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:05:41,371 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580445613] [2022-01-19 13:05:41,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:05:41,372 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:05:41,372 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:05:41,374 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:05:41,374 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:05:41,376 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:05:41,376 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1314 places, 1202 transitions, 16776 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:05:41,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:05:41,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:05:41,377 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:06:00,992 INFO L129 PetriNetUnfolder]: 11808/34327 cut-off events. [2022-01-19 13:06:00,992 INFO L130 PetriNetUnfolder]: For 503833/505090 co-relation queries the response was YES. [2022-01-19 13:06:05,967 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193881 conditions, 34327 events. 11808/34327 cut-off events. For 503833/505090 co-relation queries the response was YES. Maximal size of possible extension queue 3122. Compared 476102 event pairs, 5805 based on Foata normal form. 1/32337 useless extension candidates. Maximal degree in co-relation 193385. Up to 17707 conditions per place. [2022-01-19 13:06:06,060 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 933 selfloop transitions, 222 changer transitions 22/1422 dead transitions. [2022-01-19 13:06:06,060 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1337 places, 1422 transitions, 22434 flow [2022-01-19 13:06:06,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 13:06:06,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 13:06:06,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 6242 transitions. [2022-01-19 13:06:06,063 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8394298009682625 [2022-01-19 13:06:06,063 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 6242 transitions. [2022-01-19 13:06:06,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 6242 transitions. [2022-01-19 13:06:06,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:06:06,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 6242 transitions. [2022-01-19 13:06:06,066 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 240.07692307692307) internal successors, (6242), 26 states have internal predecessors, (6242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:06,069 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:06,069 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:06,069 INFO L186 Difference]: Start difference. First operand has 1314 places, 1202 transitions, 16776 flow. Second operand 26 states and 6242 transitions. [2022-01-19 13:06:06,069 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1337 places, 1422 transitions, 22434 flow [2022-01-19 13:06:14,370 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1334 places, 1422 transitions, 21925 flow, removed 226 selfloop flow, removed 3 redundant places. [2022-01-19 13:06:14,411 INFO L242 Difference]: Finished difference. Result has 1351 places, 1240 transitions, 17611 flow [2022-01-19 13:06:14,412 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=16295, PETRI_DIFFERENCE_MINUEND_PLACES=1309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=185, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1004, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=17611, PETRI_PLACES=1351, PETRI_TRANSITIONS=1240} [2022-01-19 13:06:14,412 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1095 predicate places. [2022-01-19 13:06:14,412 INFO L470 AbstractCegarLoop]: Abstraction has has 1351 places, 1240 transitions, 17611 flow [2022-01-19 13:06:14,413 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:14,413 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:06:14,413 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] [2022-01-19 13:06:14,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2022-01-19 13:06:14,413 INFO L402 AbstractCegarLoop]: === Iteration 65 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:06:14,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:06:14,413 INFO L85 PathProgramCache]: Analyzing trace with hash 619421942, now seen corresponding path program 7 times [2022-01-19 13:06:14,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:06:14,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909668548] [2022-01-19 13:06:14,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:06:14,414 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:06:14,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:06:14,505 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 13:06:14,505 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:06:14,505 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909668548] [2022-01-19 13:06:14,505 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909668548] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:06:14,505 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:06:14,505 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:06:14,505 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784685819] [2022-01-19 13:06:14,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:06:14,506 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:06:14,506 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:06:14,506 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:06:14,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:06:14,507 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:06:14,508 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1351 places, 1240 transitions, 17611 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:14,508 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:06:14,508 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:06:14,508 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 13:06:34,336 INFO L129 PetriNetUnfolder]: 12047/35533 cut-off events. [2022-01-19 13:06:34,336 INFO L130 PetriNetUnfolder]: For 550091/551405 co-relation queries the response was YES. [2022-01-19 13:06:39,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204088 conditions, 35533 events. 12047/35533 cut-off events. For 550091/551405 co-relation queries the response was YES. Maximal size of possible extension queue 3206. Compared 495913 event pairs, 5960 based on Foata normal form. 70/33605 useless extension candidates. Maximal degree in co-relation 203577. Up to 18123 conditions per place. [2022-01-19 13:06:39,275 INFO L132 encePairwiseOnDemand]: 265/286 looper letters, 947 selfloop transitions, 246 changer transitions 18/1456 dead transitions. [2022-01-19 13:06:39,275 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 1374 places, 1456 transitions, 23655 flow [2022-01-19 13:06:39,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-01-19 13:06:39,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2022-01-19 13:06:39,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 6241 transitions. [2022-01-19 13:06:39,278 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8392953200645509 [2022-01-19 13:06:39,278 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 6241 transitions. [2022-01-19 13:06:39,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 6241 transitions. [2022-01-19 13:06:39,279 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 13:06:39,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 6241 transitions. [2022-01-19 13:06:39,282 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 27 states, 26 states have (on average 240.03846153846155) internal successors, (6241), 26 states have internal predecessors, (6241), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:39,284 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:39,285 INFO L81 ComplementDD]: Finished complementDD. Result has 27 states, 27 states have (on average 286.0) internal successors, (7722), 27 states have internal predecessors, (7722), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:39,285 INFO L186 Difference]: Start difference. First operand has 1351 places, 1240 transitions, 17611 flow. Second operand 26 states and 6241 transitions. [2022-01-19 13:06:39,285 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 1374 places, 1456 transitions, 23655 flow [2022-01-19 13:06:48,085 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 1371 places, 1456 transitions, 23023 flow, removed 286 selfloop flow, removed 3 redundant places. [2022-01-19 13:06:48,103 INFO L242 Difference]: Finished difference. Result has 1387 places, 1282 transitions, 18711 flow [2022-01-19 13:06:48,104 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=286, PETRI_DIFFERENCE_MINUEND_FLOW=17156, PETRI_DIFFERENCE_MINUEND_PLACES=1346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=205, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=1025, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=18711, PETRI_PLACES=1387, PETRI_TRANSITIONS=1282} [2022-01-19 13:06:48,105 INFO L334 CegarLoopForPetriNet]: 256 programPoint places, 1131 predicate places. [2022-01-19 13:06:48,105 INFO L470 AbstractCegarLoop]: Abstraction has has 1387 places, 1282 transitions, 18711 flow [2022-01-19 13:06:48,105 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:48,105 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 13:06:48,105 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] [2022-01-19 13:06:48,105 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2022-01-19 13:06:48,105 INFO L402 AbstractCegarLoop]: === Iteration 66 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 13:06:48,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 13:06:48,106 INFO L85 PathProgramCache]: Analyzing trace with hash -180174622, now seen corresponding path program 8 times [2022-01-19 13:06:48,106 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 13:06:48,106 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [638531450] [2022-01-19 13:06:48,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 13:06:48,106 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 13:06:48,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 13:06:48,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 13:06:48,204 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 13:06:48,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [638531450] [2022-01-19 13:06:48,204 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [638531450] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 13:06:48,205 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 13:06:48,205 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2022-01-19 13:06:48,205 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408890037] [2022-01-19 13:06:48,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 13:06:48,205 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-19 13:06:48,205 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 13:06:48,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-19 13:06:48,205 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=154, Unknown=0, NotChecked=0, Total=182 [2022-01-19 13:06:48,206 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 233 out of 286 [2022-01-19 13:06:48,207 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 1387 places, 1282 transitions, 18711 flow. Second operand has 14 states, 14 states have (on average 235.42857142857142) internal successors, (3296), 14 states have internal predecessors, (3296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 13:06:48,207 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 13:06:48,207 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 233 of 286 [2022-01-19 13:06:48,208 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand