/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-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 07:47:04,691 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 07:47:04,692 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 07:47:04,712 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 07:47:04,712 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 07:47:04,713 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 07:47:04,714 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 07:47:04,715 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 07:47:04,716 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 07:47:04,717 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 07:47:04,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 07:47:04,718 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 07:47:04,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 07:47:04,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 07:47:04,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 07:47:04,720 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 07:47:04,721 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 07:47:04,722 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 07:47:04,723 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 07:47:04,725 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 07:47:04,726 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 07:47:04,726 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 07:47:04,727 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 07:47:04,728 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 07:47:04,729 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 07:47:04,730 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 07:47:04,730 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 07:47:04,730 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 07:47:04,731 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 07:47:04,731 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 07:47:04,731 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 07:47:04,732 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 07:47:04,732 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 07:47:04,733 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 07:47:04,733 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 07:47:04,734 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 07:47:04,734 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 07:47:04,734 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 07:47:04,734 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 07:47:04,735 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 07:47:04,735 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 07:47:04,736 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-Before.epf [2022-01-19 07:47:04,783 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 07:47:04,784 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 07:47:04,785 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 07:47:04,785 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 07:47:04,785 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 07:47:04,785 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 07:47:04,785 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 07:47:04,785 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 07:47:04,785 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 07:47:04,786 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 07:47:04,786 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 07:47:04,787 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 07:47:04,787 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 07:47:04,787 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:47:04,787 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 07:47:04,787 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 07:47:04,787 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 07:47:04,788 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 07:47:04,788 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 07:47:04,788 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 07:47:04,788 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 07:47:04,788 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 07:47:04,788 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 07:47:04,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 07:47:04,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 07:47:04,972 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 07:47:04,972 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 07:47:04,973 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 07:47:04,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-01-19 07:47:05,026 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c183fc44/5e6b34bf2dea4d9ca3d2f1a1268fe880/FLAGa72fa4c3f [2022-01-19 07:47:05,391 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 07:47:05,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2022-01-19 07:47:05,396 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c183fc44/5e6b34bf2dea4d9ca3d2f1a1268fe880/FLAGa72fa4c3f [2022-01-19 07:47:05,404 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4c183fc44/5e6b34bf2dea4d9ca3d2f1a1268fe880 [2022-01-19 07:47:05,405 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 07:47:05,406 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 07:47:05,407 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 07:47:05,407 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 07:47:05,414 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 07:47:05,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,415 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23c8abf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05, skipping insertion in model container [2022-01-19 07:47:05,416 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,420 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 07:47:05,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 07:47:05,566 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-01-19 07:47:05,569 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:47:05,576 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 07:47:05,593 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c[3963,3976] [2022-01-19 07:47:05,594 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 07:47:05,603 INFO L208 MainTranslator]: Completed translation [2022-01-19 07:47:05,603 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05 WrapperNode [2022-01-19 07:47:05,603 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 07:47:05,604 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 07:47:05,604 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 07:47:05,604 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 07:47:05,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,615 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,637 INFO L137 Inliner]: procedures = 24, calls = 85, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 238 [2022-01-19 07:47:05,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 07:47:05,638 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 07:47:05,638 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 07:47:05,638 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 07:47:05,644 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,646 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,647 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,654 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,656 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 07:47:05,656 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 07:47:05,656 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 07:47:05,656 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 07:47:05,657 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (1/1) ... [2022-01-19 07:47:05,661 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 07:47:05,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 07:47:05,688 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 07:47:05,695 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 07:47:05,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 07:47:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 07:47:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 07:47:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 07:47:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 07:47:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 07:47:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 07:47:05,731 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-19 07:47:05,731 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-19 07:47:05,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2022-01-19 07:47:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 07:47:05,733 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 07:47:05,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 07:47:05,734 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 07:47:05,843 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 07:47:05,844 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 07:47:06,037 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 07:47:06,088 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 07:47:06,089 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 07:47:06,090 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:47:06 BoogieIcfgContainer [2022-01-19 07:47:06,090 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 07:47:06,091 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 07:47:06,091 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 07:47:06,095 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 07:47:06,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 07:47:05" (1/3) ... [2022-01-19 07:47:06,096 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d0bc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:47:06, skipping insertion in model container [2022-01-19 07:47:06,096 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 07:47:05" (2/3) ... [2022-01-19 07:47:06,097 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39d0bc98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 07:47:06, skipping insertion in model container [2022-01-19 07:47:06,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 07:47:06" (3/3) ... [2022-01-19 07:47:06,097 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2022-01-19 07:47:06,101 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 07:47:06,101 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 07:47:06,101 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 07:47:06,145 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,146 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,147 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,148 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,149 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,150 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,150 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,150 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,150 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,150 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,150 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,150 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,151 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,151 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,151 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,151 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,151 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,151 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,151 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,152 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,153 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,155 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,155 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,155 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,155 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,156 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,156 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,156 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#t~post7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,157 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_#t~post10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,158 WARN L322 ript$VariableManager]: TermVariabe |thread5Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,159 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,159 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,159 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,159 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,159 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,159 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork4_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 07:47:06,163 INFO L148 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2022-01-19 07:47:06,192 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 07:47:06,196 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 07:47:06,196 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-19 07:47:06,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 179 places, 165 transitions, 370 flow [2022-01-19 07:47:06,278 INFO L129 PetriNetUnfolder]: 2/160 cut-off events. [2022-01-19 07:47:06,278 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 07:47:06,280 INFO L84 FinitePrefix]: Finished finitePrefix Result has 181 conditions, 160 events. 2/160 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs, 0 based on Foata normal form. 0/157 useless extension candidates. Maximal degree in co-relation 120. Up to 2 conditions per place. [2022-01-19 07:47:06,281 INFO L82 GeneralOperation]: Start removeDead. Operand has 179 places, 165 transitions, 370 flow [2022-01-19 07:47:06,288 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 159 places, 145 transitions, 320 flow [2022-01-19 07:47:06,327 INFO L129 PetriNetUnfolder]: 2/144 cut-off events. [2022-01-19 07:47:06,327 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2022-01-19 07:47:06,327 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:06,328 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] [2022-01-19 07:47:06,328 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:06,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:06,334 INFO L85 PathProgramCache]: Analyzing trace with hash -1882316905, now seen corresponding path program 1 times [2022-01-19 07:47:06,342 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:06,342 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578129161] [2022-01-19 07:47:06,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:06,343 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:06,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:07,066 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 07:47:07,067 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:07,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578129161] [2022-01-19 07:47:07,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578129161] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:07,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:07,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-19 07:47:07,071 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [613321812] [2022-01-19 07:47:07,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:07,078 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 07:47:07,078 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:07,098 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 07:47:07,099 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2022-01-19 07:47:07,102 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 07:47:07,105 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 145 transitions, 320 flow. Second operand has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:07,105 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:07,105 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 07:47:07,106 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:10,883 INFO L129 PetriNetUnfolder]: 28398/43787 cut-off events. [2022-01-19 07:47:10,883 INFO L130 PetriNetUnfolder]: For 7195/7249 co-relation queries the response was YES. [2022-01-19 07:47:11,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86820 conditions, 43787 events. 28398/43787 cut-off events. For 7195/7249 co-relation queries the response was YES. Maximal size of possible extension queue 1725. Compared 330731 event pairs, 16376 based on Foata normal form. 4/42714 useless extension candidates. Maximal degree in co-relation 68872. Up to 12802 conditions per place. [2022-01-19 07:47:11,145 INFO L132 encePairwiseOnDemand]: 141/165 looper letters, 122 selfloop transitions, 27 changer transitions 26/267 dead transitions. [2022-01-19 07:47:11,145 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 174 places, 267 transitions, 1004 flow [2022-01-19 07:47:11,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 07:47:11,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 07:47:11,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1957 transitions. [2022-01-19 07:47:11,161 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7412878787878788 [2022-01-19 07:47:11,162 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1957 transitions. [2022-01-19 07:47:11,162 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1957 transitions. [2022-01-19 07:47:11,165 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:11,167 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1957 transitions. [2022-01-19 07:47:11,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 122.3125) internal successors, (1957), 16 states have internal predecessors, (1957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:11,180 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:11,181 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 165.0) internal successors, (2805), 17 states have internal predecessors, (2805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:11,183 INFO L186 Difference]: Start difference. First operand has 159 places, 145 transitions, 320 flow. Second operand 16 states and 1957 transitions. [2022-01-19 07:47:11,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 174 places, 267 transitions, 1004 flow [2022-01-19 07:47:11,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 164 places, 267 transitions, 924 flow, removed 0 selfloop flow, removed 10 redundant places. [2022-01-19 07:47:11,273 INFO L242 Difference]: Finished difference. Result has 174 places, 162 transitions, 479 flow [2022-01-19 07:47:11,275 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=296, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=127, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=479, PETRI_PLACES=174, PETRI_TRANSITIONS=162} [2022-01-19 07:47:11,278 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 15 predicate places. [2022-01-19 07:47:11,278 INFO L470 AbstractCegarLoop]: Abstraction has has 174 places, 162 transitions, 479 flow [2022-01-19 07:47:11,279 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:11,279 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:11,280 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] [2022-01-19 07:47:11,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 07:47:11,280 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:11,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:11,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1644980583, now seen corresponding path program 2 times [2022-01-19 07:47:11,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:11,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2089486382] [2022-01-19 07:47:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:11,282 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:11,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:11,640 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 07:47:11,640 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:11,640 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2089486382] [2022-01-19 07:47:11,641 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2089486382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:11,641 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:11,641 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2022-01-19 07:47:11,641 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176577823] [2022-01-19 07:47:11,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:11,642 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 07:47:11,642 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:11,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 07:47:11,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2022-01-19 07:47:11,643 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 07:47:11,645 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 174 places, 162 transitions, 479 flow. Second operand has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:11,645 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:11,645 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 07:47:11,645 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:15,041 INFO L129 PetriNetUnfolder]: 25385/42661 cut-off events. [2022-01-19 07:47:15,041 INFO L130 PetriNetUnfolder]: For 34339/34339 co-relation queries the response was YES. [2022-01-19 07:47:15,162 INFO L84 FinitePrefix]: Finished finitePrefix Result has 108685 conditions, 42661 events. 25385/42661 cut-off events. For 34339/34339 co-relation queries the response was YES. Maximal size of possible extension queue 1845. Compared 370827 event pairs, 6884 based on Foata normal form. 1/42097 useless extension candidates. Maximal degree in co-relation 108666. Up to 22556 conditions per place. [2022-01-19 07:47:15,262 INFO L132 encePairwiseOnDemand]: 146/165 looper letters, 82 selfloop transitions, 29 changer transitions 47/250 dead transitions. [2022-01-19 07:47:15,263 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 177 places, 250 transitions, 1152 flow [2022-01-19 07:47:15,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 07:47:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 07:47:15,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1472 transitions. [2022-01-19 07:47:15,265 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7434343434343434 [2022-01-19 07:47:15,266 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1472 transitions. [2022-01-19 07:47:15,266 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1472 transitions. [2022-01-19 07:47:15,266 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:15,266 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1472 transitions. [2022-01-19 07:47:15,268 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 122.66666666666667) internal successors, (1472), 12 states have internal predecessors, (1472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:15,271 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:15,271 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:15,271 INFO L186 Difference]: Start difference. First operand has 174 places, 162 transitions, 479 flow. Second operand 12 states and 1472 transitions. [2022-01-19 07:47:15,271 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 177 places, 250 transitions, 1152 flow [2022-01-19 07:47:15,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 169 places, 250 transitions, 1109 flow, removed 10 selfloop flow, removed 8 redundant places. [2022-01-19 07:47:15,317 INFO L242 Difference]: Finished difference. Result has 175 places, 174 transitions, 627 flow [2022-01-19 07:47:15,318 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=158, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=627, PETRI_PLACES=175, PETRI_TRANSITIONS=174} [2022-01-19 07:47:15,318 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 16 predicate places. [2022-01-19 07:47:15,318 INFO L470 AbstractCegarLoop]: Abstraction has has 175 places, 174 transitions, 627 flow [2022-01-19 07:47:15,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 115.08333333333333) internal successors, (1381), 12 states have internal predecessors, (1381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:15,319 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:15,319 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] [2022-01-19 07:47:15,319 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 07:47:15,319 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:15,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:15,320 INFO L85 PathProgramCache]: Analyzing trace with hash 1318499785, now seen corresponding path program 3 times [2022-01-19 07:47:15,320 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:15,321 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1698994261] [2022-01-19 07:47:15,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:15,323 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:15,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:15,453 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 07:47:15,455 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:15,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1698994261] [2022-01-19 07:47:15,456 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1698994261] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:15,456 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:15,456 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:47:15,456 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467469955] [2022-01-19 07:47:15,456 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:15,457 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:47:15,458 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:15,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:47:15,458 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:47:15,460 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:15,461 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 174 transitions, 627 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:15,461 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:15,461 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:15,461 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:17,263 INFO L129 PetriNetUnfolder]: 14040/22867 cut-off events. [2022-01-19 07:47:17,264 INFO L130 PetriNetUnfolder]: For 35779/41832 co-relation queries the response was YES. [2022-01-19 07:47:17,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 66682 conditions, 22867 events. 14040/22867 cut-off events. For 35779/41832 co-relation queries the response was YES. Maximal size of possible extension queue 1224. Compared 178398 event pairs, 1545 based on Foata normal form. 201/21583 useless extension candidates. Maximal degree in co-relation 66658. Up to 5638 conditions per place. [2022-01-19 07:47:17,612 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 95 selfloop transitions, 58 changer transitions 1/281 dead transitions. [2022-01-19 07:47:17,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 281 transitions, 1286 flow [2022-01-19 07:47:17,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:47:17,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:47:17,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1347 transitions. [2022-01-19 07:47:17,615 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8163636363636364 [2022-01-19 07:47:17,615 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1347 transitions. [2022-01-19 07:47:17,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1347 transitions. [2022-01-19 07:47:17,616 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:17,616 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1347 transitions. [2022-01-19 07:47:17,620 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 134.7) internal successors, (1347), 10 states have internal predecessors, (1347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:17,626 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:17,626 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:17,626 INFO L186 Difference]: Start difference. First operand has 175 places, 174 transitions, 627 flow. Second operand 10 states and 1347 transitions. [2022-01-19 07:47:17,626 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 281 transitions, 1286 flow [2022-01-19 07:47:17,676 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 281 transitions, 1225 flow, removed 14 selfloop flow, removed 9 redundant places. [2022-01-19 07:47:17,679 INFO L242 Difference]: Finished difference. Result has 172 places, 218 transitions, 831 flow [2022-01-19 07:47:17,679 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=174, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=831, PETRI_PLACES=172, PETRI_TRANSITIONS=218} [2022-01-19 07:47:17,680 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 13 predicate places. [2022-01-19 07:47:17,680 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 218 transitions, 831 flow [2022-01-19 07:47:17,680 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:17,680 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:17,681 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 07:47:17,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 07:47:17,681 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:17,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:17,681 INFO L85 PathProgramCache]: Analyzing trace with hash 1113799159, now seen corresponding path program 4 times [2022-01-19 07:47:17,681 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:17,681 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1848284094] [2022-01-19 07:47:17,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:17,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:17,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:17,816 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 07:47:17,816 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:17,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1848284094] [2022-01-19 07:47:17,817 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1848284094] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:17,817 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:17,817 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:47:17,817 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056017483] [2022-01-19 07:47:17,817 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:17,818 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:47:17,818 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:17,818 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:47:17,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:47:17,819 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:17,820 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 218 transitions, 831 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:17,820 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:17,820 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:17,820 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:20,868 INFO L129 PetriNetUnfolder]: 20024/38070 cut-off events. [2022-01-19 07:47:20,869 INFO L130 PetriNetUnfolder]: For 42114/46734 co-relation queries the response was YES. [2022-01-19 07:47:21,005 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109720 conditions, 38070 events. 20024/38070 cut-off events. For 42114/46734 co-relation queries the response was YES. Maximal size of possible extension queue 2125. Compared 381409 event pairs, 4107 based on Foata normal form. 1352/37946 useless extension candidates. Maximal degree in co-relation 51763. Up to 8245 conditions per place. [2022-01-19 07:47:21,306 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 128 selfloop transitions, 84 changer transitions 0/339 dead transitions. [2022-01-19 07:47:21,306 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 339 transitions, 1813 flow [2022-01-19 07:47:21,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:47:21,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:47:21,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 946 transitions. [2022-01-19 07:47:21,308 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.819047619047619 [2022-01-19 07:47:21,308 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 946 transitions. [2022-01-19 07:47:21,308 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 946 transitions. [2022-01-19 07:47:21,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:21,309 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 946 transitions. [2022-01-19 07:47:21,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.14285714285714) internal successors, (946), 7 states have internal predecessors, (946), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:21,312 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:21,312 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:21,312 INFO L186 Difference]: Start difference. First operand has 172 places, 218 transitions, 831 flow. Second operand 7 states and 946 transitions. [2022-01-19 07:47:21,312 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 339 transitions, 1813 flow [2022-01-19 07:47:21,349 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 175 places, 339 transitions, 1689 flow, removed 57 selfloop flow, removed 3 redundant places. [2022-01-19 07:47:21,352 INFO L242 Difference]: Finished difference. Result has 177 places, 283 transitions, 1388 flow [2022-01-19 07:47:21,352 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=781, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1388, PETRI_PLACES=177, PETRI_TRANSITIONS=283} [2022-01-19 07:47:21,353 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 18 predicate places. [2022-01-19 07:47:21,353 INFO L470 AbstractCegarLoop]: Abstraction has has 177 places, 283 transitions, 1388 flow [2022-01-19 07:47:21,354 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:21,354 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:21,354 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] [2022-01-19 07:47:21,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 07:47:21,354 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:21,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:21,354 INFO L85 PathProgramCache]: Analyzing trace with hash -904049683, now seen corresponding path program 5 times [2022-01-19 07:47:21,355 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:21,355 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416549013] [2022-01-19 07:47:21,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:21,355 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:21,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:21,488 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 07:47:21,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:21,489 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416549013] [2022-01-19 07:47:21,489 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416549013] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:21,489 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:21,489 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 07:47:21,489 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1743263811] [2022-01-19 07:47:21,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:21,490 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 07:47:21,490 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:21,490 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 07:47:21,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-19 07:47:21,491 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:21,492 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 177 places, 283 transitions, 1388 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:21,492 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:21,492 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:21,492 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:24,543 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([491] L109-->L112: Formula: (= (ite (= (ite (or (not (= (mod v_~b~0_6 256) 0)) (= v_~x~0_5 1)) 1 0) 0) 0 1) v_~b~0_5) InVars {~b~0=v_~b~0_6, ~x~0=v_~x~0_5} OutVars{~b~0=v_~b~0_5, ~x~0=v_~x~0_5} AuxVars[] AssignedVars[~b~0][199], [83#L160-4true, 44#L93true, 73#L134true, 145#L112true, 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), 101#L74true, Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 78#L55true, Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 07:47:24,543 INFO L384 tUnfolder$Statistics]: this new event has 103 ancestors and is cut-off event [2022-01-19 07:47:24,543 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-01-19 07:47:24,543 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-01-19 07:47:24,543 INFO L387 tUnfolder$Statistics]: existing Event has 103 ancestors and is cut-off event [2022-01-19 07:47:25,713 INFO L129 PetriNetUnfolder]: 25513/47183 cut-off events. [2022-01-19 07:47:25,714 INFO L130 PetriNetUnfolder]: For 89096/98166 co-relation queries the response was YES. [2022-01-19 07:47:26,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 158297 conditions, 47183 events. 25513/47183 cut-off events. For 89096/98166 co-relation queries the response was YES. Maximal size of possible extension queue 2703. Compared 473679 event pairs, 4721 based on Foata normal form. 1931/46703 useless extension candidates. Maximal degree in co-relation 57954. Up to 11796 conditions per place. [2022-01-19 07:47:26,240 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 129 selfloop transitions, 166 changer transitions 0/422 dead transitions. [2022-01-19 07:47:26,241 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 184 places, 422 transitions, 2718 flow [2022-01-19 07:47:26,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 07:47:26,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 07:47:26,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1094 transitions. [2022-01-19 07:47:26,243 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8287878787878787 [2022-01-19 07:47:26,243 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1094 transitions. [2022-01-19 07:47:26,243 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1094 transitions. [2022-01-19 07:47:26,243 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:26,243 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1094 transitions. [2022-01-19 07:47:26,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.75) internal successors, (1094), 8 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:26,246 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:26,247 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:26,247 INFO L186 Difference]: Start difference. First operand has 177 places, 283 transitions, 1388 flow. Second operand 8 states and 1094 transitions. [2022-01-19 07:47:26,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 184 places, 422 transitions, 2718 flow [2022-01-19 07:47:26,340 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 182 places, 422 transitions, 2694 flow, removed 10 selfloop flow, removed 2 redundant places. [2022-01-19 07:47:26,345 INFO L242 Difference]: Finished difference. Result has 184 places, 360 transitions, 2343 flow [2022-01-19 07:47:26,346 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=1374, PETRI_DIFFERENCE_MINUEND_PLACES=175, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=283, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=170, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=2343, PETRI_PLACES=184, PETRI_TRANSITIONS=360} [2022-01-19 07:47:26,346 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 25 predicate places. [2022-01-19 07:47:26,346 INFO L470 AbstractCegarLoop]: Abstraction has has 184 places, 360 transitions, 2343 flow [2022-01-19 07:47:26,347 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:26,347 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:26,347 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] [2022-01-19 07:47:26,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 07:47:26,347 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:26,348 INFO L85 PathProgramCache]: Analyzing trace with hash -147796337, now seen corresponding path program 6 times [2022-01-19 07:47:26,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:26,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758495533] [2022-01-19 07:47:26,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:26,348 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:26,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:26,428 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 07:47:26,428 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:26,428 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758495533] [2022-01-19 07:47:26,429 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758495533] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:26,429 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:26,429 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:47:26,429 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091893732] [2022-01-19 07:47:26,429 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:26,429 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:47:26,429 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:26,430 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:47:26,430 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:47:26,431 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:26,431 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 184 places, 360 transitions, 2343 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:26,432 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:26,432 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:26,432 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:29,511 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([486] L93-->L96: Formula: (= v_~s~0_79 (+ v_~s~0_80 1)) InVars {~s~0=v_~s~0_80} OutVars{thread3Thread1of1ForFork4_#t~post6#1=|v_thread3Thread1of1ForFork4_#t~post6#1_1|, ~s~0=v_~s~0_79} AuxVars[] AssignedVars[thread3Thread1of1ForFork4_#t~post6#1, ~s~0][197], [42#L115true, 24#L52true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 57#L96true, Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 285#(<= (+ ~s~0 1) ~t~0), 270#(<= ~s~0 ~t~0)]) [2022-01-19 07:47:29,511 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,511 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,511 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,511 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 24#L52true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 07:47:29,512 INFO L384 tUnfolder$Statistics]: this new event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L387 tUnfolder$Statistics]: existing Event has 101 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([474] L55-->L58: Formula: (= v_~s~0_59 (+ v_~s~0_60 1)) InVars {~s~0=v_~s~0_60} OutVars{thread1Thread1of1ForFork0_#t~post2#1=|v_thread1Thread1of1ForFork0_#t~post2#1_1|, ~s~0=v_~s~0_59} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post2#1, ~s~0][241], [42#L115true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 127#L58true, 270#(<= ~s~0 ~t~0), 285#(<= (+ ~s~0 1) ~t~0)]) [2022-01-19 07:47:29,512 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,512 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,742 INFO L382 tUnfolder$Statistics]: inserting event number 4 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 83#L160-4true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), 44#L93true, Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), 78#L55true, Black: 270#(<= ~s~0 ~t~0), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), 21#L71true, Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 07:47:29,742 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,742 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,742 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,742 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,760 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([497] L128-->L131: Formula: (= v_~b~0_7 (ite (= (ite (or (= v_~x~0_6 1) (not (= 0 (mod v_~b~0_8 256)))) 1 0) 0) 0 1)) InVars {~b~0=v_~b~0_8, ~x~0=v_~x~0_6} OutVars{~b~0=v_~b~0_7, ~x~0=v_~x~0_6} AuxVars[] AssignedVars[~b~0][261], [42#L115true, 83#L160-4true, 44#L93true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 302#(<= (+ 3 ~s~0) ~t~0), 286#(<= (+ 2 ~s~0) ~t~0), Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), 271#(<= (+ ~s~0 1) ~t~0), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), Black: 270#(<= ~s~0 ~t~0), 78#L55true, 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 82#L131true, 258#(<= (+ ~s~0 4) ~t~0)]) [2022-01-19 07:47:29,760 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,760 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,760 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,760 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,760 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,760 INFO L382 tUnfolder$Statistics]: inserting event number 5 for the transition-marking pair ([474] L55-->L58: Formula: (= v_~s~0_59 (+ v_~s~0_60 1)) InVars {~s~0=v_~s~0_60} OutVars{thread1Thread1of1ForFork0_#t~post2#1=|v_thread1Thread1of1ForFork0_#t~post2#1_1|, ~s~0=v_~s~0_59} AuxVars[] AssignedVars[thread1Thread1of1ForFork0_#t~post2#1, ~s~0][241], [42#L115true, 83#L160-4true, 44#L93true, Black: 291#(and (<= (+ 2 ~s~0) ~m3~0) (<= (+ 2 ~s~0) ~t~0)), Black: 284#(<= ~s~0 ~t~0), 131#L128true, Black: 263#(and (<= (+ ~s~0 4) ~t~0) (<= (+ ~s~0 4) ~m5~0)), Black: 201#(and (<= ~x~0 0) (<= ~b~0 0) (<= 0 ~b~0)), Black: 227#(= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0), Black: 276#(and (<= (+ ~s~0 1) ~t~0) (<= (+ ~s~0 1) ~m4~0)), Black: 191#(and (<= ~b~0 0) (<= 0 ~b~0)), Black: 186#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~t~0 ~s~0)), 301#(<= (+ 2 ~s~0) ~t~0), 21#L71true, Black: 187#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0) (<= ~m2~0 ~s~0)), 257#(<= (+ 3 ~s~0) ~t~0), Black: 226#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~m1~0 ~s~0)), Black: 188#(and (= (+ (* (- 256) (div ~b~0 256)) ~b~0) 0) (<= ~x~0 0)), 127#L58true, 285#(<= (+ ~s~0 1) ~t~0), 270#(<= ~s~0 ~t~0)]) [2022-01-19 07:47:29,760 INFO L384 tUnfolder$Statistics]: this new event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,760 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,761 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,761 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:29,761 INFO L387 tUnfolder$Statistics]: existing Event has 102 ancestors and is cut-off event [2022-01-19 07:47:31,162 INFO L129 PetriNetUnfolder]: 26530/47127 cut-off events. [2022-01-19 07:47:31,162 INFO L130 PetriNetUnfolder]: For 149341/160102 co-relation queries the response was YES. [2022-01-19 07:47:31,591 INFO L84 FinitePrefix]: Finished finitePrefix Result has 185117 conditions, 47127 events. 26530/47127 cut-off events. For 149341/160102 co-relation queries the response was YES. Maximal size of possible extension queue 2587. Compared 453882 event pairs, 3807 based on Foata normal form. 2373/47034 useless extension candidates. Maximal degree in co-relation 127011. Up to 12762 conditions per place. [2022-01-19 07:47:31,823 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 114 selfloop transitions, 218 changer transitions 2/461 dead transitions. [2022-01-19 07:47:31,823 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 192 places, 461 transitions, 3576 flow [2022-01-19 07:47:31,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:47:31,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:47:31,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1230 transitions. [2022-01-19 07:47:31,828 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2022-01-19 07:47:31,828 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1230 transitions. [2022-01-19 07:47:31,828 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1230 transitions. [2022-01-19 07:47:31,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:31,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1230 transitions. [2022-01-19 07:47:31,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.66666666666666) internal successors, (1230), 9 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:31,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:31,833 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:31,833 INFO L186 Difference]: Start difference. First operand has 184 places, 360 transitions, 2343 flow. Second operand 9 states and 1230 transitions. [2022-01-19 07:47:31,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 192 places, 461 transitions, 3576 flow [2022-01-19 07:47:32,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 190 places, 461 transitions, 3524 flow, removed 24 selfloop flow, removed 2 redundant places. [2022-01-19 07:47:32,378 INFO L242 Difference]: Finished difference. Result has 192 places, 395 transitions, 3138 flow [2022-01-19 07:47:32,379 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=2319, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=360, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=187, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=3138, PETRI_PLACES=192, PETRI_TRANSITIONS=395} [2022-01-19 07:47:32,379 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 33 predicate places. [2022-01-19 07:47:32,379 INFO L470 AbstractCegarLoop]: Abstraction has has 192 places, 395 transitions, 3138 flow [2022-01-19 07:47:32,380 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:32,380 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:32,380 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] [2022-01-19 07:47:32,380 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 07:47:32,380 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:32,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:32,380 INFO L85 PathProgramCache]: Analyzing trace with hash -1325641699, now seen corresponding path program 7 times [2022-01-19 07:47:32,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:32,381 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273913961] [2022-01-19 07:47:32,381 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:32,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:32,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:32,440 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 07:47:32,440 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:32,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273913961] [2022-01-19 07:47:32,440 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273913961] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:32,440 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:32,440 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:47:32,441 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003709059] [2022-01-19 07:47:32,441 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:32,441 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:47:32,441 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:32,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:47:32,441 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:47:32,442 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:32,442 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 192 places, 395 transitions, 3138 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:32,443 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:32,443 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:32,443 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:37,604 INFO L129 PetriNetUnfolder]: 25014/47806 cut-off events. [2022-01-19 07:47:37,605 INFO L130 PetriNetUnfolder]: For 192179/199828 co-relation queries the response was YES. [2022-01-19 07:47:37,836 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200073 conditions, 47806 events. 25014/47806 cut-off events. For 192179/199828 co-relation queries the response was YES. Maximal size of possible extension queue 2716. Compared 498570 event pairs, 5909 based on Foata normal form. 1999/47720 useless extension candidates. Maximal degree in co-relation 105004. Up to 12767 conditions per place. [2022-01-19 07:47:38,046 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 209 selfloop transitions, 137 changer transitions 0/473 dead transitions. [2022-01-19 07:47:38,046 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 473 transitions, 4409 flow [2022-01-19 07:47:38,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:47:38,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:47:38,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 945 transitions. [2022-01-19 07:47:38,048 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8181818181818182 [2022-01-19 07:47:38,048 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 945 transitions. [2022-01-19 07:47:38,048 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 945 transitions. [2022-01-19 07:47:38,048 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:38,048 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 945 transitions. [2022-01-19 07:47:38,050 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.0) internal successors, (945), 7 states have internal predecessors, (945), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:38,051 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:38,051 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:38,051 INFO L186 Difference]: Start difference. First operand has 192 places, 395 transitions, 3138 flow. Second operand 7 states and 945 transitions. [2022-01-19 07:47:38,051 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 473 transitions, 4409 flow [2022-01-19 07:47:38,987 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 473 transitions, 4378 flow, removed 7 selfloop flow, removed 3 redundant places. [2022-01-19 07:47:38,992 INFO L242 Difference]: Finished difference. Result has 197 places, 420 transitions, 3801 flow [2022-01-19 07:47:38,992 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3111, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=395, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=3801, PETRI_PLACES=197, PETRI_TRANSITIONS=420} [2022-01-19 07:47:38,992 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 38 predicate places. [2022-01-19 07:47:38,993 INFO L470 AbstractCegarLoop]: Abstraction has has 197 places, 420 transitions, 3801 flow [2022-01-19 07:47:38,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:38,993 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:38,993 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] [2022-01-19 07:47:38,993 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 07:47:38,994 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:38,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:38,994 INFO L85 PathProgramCache]: Analyzing trace with hash 1392558915, now seen corresponding path program 8 times [2022-01-19 07:47:38,994 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:38,994 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975587838] [2022-01-19 07:47:38,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:38,994 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:39,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:39,063 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 07:47:39,064 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:39,064 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975587838] [2022-01-19 07:47:39,064 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975587838] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:39,064 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:39,064 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:47:39,064 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018149841] [2022-01-19 07:47:39,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:39,065 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:47:39,065 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:39,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:47:39,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:47:39,066 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:39,067 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 197 places, 420 transitions, 3801 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:39,067 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:39,067 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:39,067 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:44,077 INFO L129 PetriNetUnfolder]: 23131/44122 cut-off events. [2022-01-19 07:47:44,078 INFO L130 PetriNetUnfolder]: For 228108/240901 co-relation queries the response was YES. [2022-01-19 07:47:44,347 INFO L84 FinitePrefix]: Finished finitePrefix Result has 200748 conditions, 44122 events. 23131/44122 cut-off events. For 228108/240901 co-relation queries the response was YES. Maximal size of possible extension queue 2695. Compared 459176 event pairs, 5400 based on Foata normal form. 3096/45038 useless extension candidates. Maximal degree in co-relation 131312. Up to 12823 conditions per place. [2022-01-19 07:47:44,557 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 207 selfloop transitions, 176 changer transitions 1/507 dead transitions. [2022-01-19 07:47:44,557 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 203 places, 507 transitions, 5416 flow [2022-01-19 07:47:44,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:47:44,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:47:44,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2022-01-19 07:47:44,560 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8199134199134199 [2022-01-19 07:47:44,560 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2022-01-19 07:47:44,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2022-01-19 07:47:44,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:44,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2022-01-19 07:47:44,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:44,563 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:44,563 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:44,563 INFO L186 Difference]: Start difference. First operand has 197 places, 420 transitions, 3801 flow. Second operand 7 states and 947 transitions. [2022-01-19 07:47:44,563 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 203 places, 507 transitions, 5416 flow [2022-01-19 07:47:45,107 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 507 transitions, 5183 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-01-19 07:47:45,112 INFO L242 Difference]: Finished difference. Result has 200 places, 456 transitions, 4660 flow [2022-01-19 07:47:45,113 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=3561, PETRI_DIFFERENCE_MINUEND_PLACES=192, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=133, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=4660, PETRI_PLACES=200, PETRI_TRANSITIONS=456} [2022-01-19 07:47:45,113 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 41 predicate places. [2022-01-19 07:47:45,113 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 456 transitions, 4660 flow [2022-01-19 07:47:45,114 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:45,114 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:45,114 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] [2022-01-19 07:47:45,114 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 07:47:45,114 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:45,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:45,114 INFO L85 PathProgramCache]: Analyzing trace with hash 62190035, now seen corresponding path program 9 times [2022-01-19 07:47:45,115 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:45,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691796659] [2022-01-19 07:47:45,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:45,115 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:45,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:45,189 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 07:47:45,189 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:45,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691796659] [2022-01-19 07:47:45,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691796659] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:45,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:45,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:47:45,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995686372] [2022-01-19 07:47:45,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:45,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:47:45,190 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:45,190 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:47:45,190 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:47:45,191 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:45,191 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 456 transitions, 4660 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:45,191 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:45,191 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:45,192 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:50,140 INFO L129 PetriNetUnfolder]: 21462/42203 cut-off events. [2022-01-19 07:47:50,140 INFO L130 PetriNetUnfolder]: For 257500/266501 co-relation queries the response was YES. [2022-01-19 07:47:50,348 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196130 conditions, 42203 events. 21462/42203 cut-off events. For 257500/266501 co-relation queries the response was YES. Maximal size of possible extension queue 2633. Compared 448894 event pairs, 5058 based on Foata normal form. 2478/42458 useless extension candidates. Maximal degree in co-relation 59661. Up to 12638 conditions per place. [2022-01-19 07:47:50,546 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 208 selfloop transitions, 207 changer transitions 3/539 dead transitions. [2022-01-19 07:47:50,546 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 539 transitions, 6321 flow [2022-01-19 07:47:50,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:47:50,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:47:50,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 947 transitions. [2022-01-19 07:47:50,549 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8199134199134199 [2022-01-19 07:47:50,549 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 947 transitions. [2022-01-19 07:47:50,549 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 947 transitions. [2022-01-19 07:47:50,549 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:50,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 947 transitions. [2022-01-19 07:47:50,551 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 135.28571428571428) internal successors, (947), 7 states have internal predecessors, (947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:50,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:50,553 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:50,553 INFO L186 Difference]: Start difference. First operand has 200 places, 456 transitions, 4660 flow. Second operand 7 states and 947 transitions. [2022-01-19 07:47:50,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 539 transitions, 6321 flow [2022-01-19 07:47:50,821 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 539 transitions, 6098 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 07:47:50,827 INFO L242 Difference]: Finished difference. Result has 204 places, 487 transitions, 5553 flow [2022-01-19 07:47:50,828 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4425, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=452, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=170, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=280, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=5553, PETRI_PLACES=204, PETRI_TRANSITIONS=487} [2022-01-19 07:47:50,828 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 45 predicate places. [2022-01-19 07:47:50,828 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 487 transitions, 5553 flow [2022-01-19 07:47:50,829 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:50,829 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:50,829 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] [2022-01-19 07:47:50,829 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 07:47:50,829 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:50,829 INFO L85 PathProgramCache]: Analyzing trace with hash 1785034139, now seen corresponding path program 10 times [2022-01-19 07:47:50,829 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:50,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1385560127] [2022-01-19 07:47:50,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:50,830 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:50,897 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 07:47:50,897 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:50,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1385560127] [2022-01-19 07:47:50,897 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1385560127] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:50,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:50,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 07:47:50,900 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405700008] [2022-01-19 07:47:50,900 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:50,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 07:47:50,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:50,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 07:47:50,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-19 07:47:50,902 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:47:50,903 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 487 transitions, 5553 flow. Second operand has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:50,903 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:50,903 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:47:50,903 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:47:54,559 INFO L129 PetriNetUnfolder]: 14692/30055 cut-off events. [2022-01-19 07:47:54,559 INFO L130 PetriNetUnfolder]: For 215793/224682 co-relation queries the response was YES. [2022-01-19 07:47:54,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146057 conditions, 30055 events. 14692/30055 cut-off events. For 215793/224682 co-relation queries the response was YES. Maximal size of possible extension queue 1625. Compared 310966 event pairs, 3012 based on Foata normal form. 2585/31090 useless extension candidates. Maximal degree in co-relation 102978. Up to 9801 conditions per place. [2022-01-19 07:47:55,018 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 200 selfloop transitions, 250 changer transitions 0/561 dead transitions. [2022-01-19 07:47:55,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 561 transitions, 7428 flow [2022-01-19 07:47:55,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 07:47:55,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 07:47:55,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 944 transitions. [2022-01-19 07:47:55,020 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8173160173160173 [2022-01-19 07:47:55,020 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 944 transitions. [2022-01-19 07:47:55,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 944 transitions. [2022-01-19 07:47:55,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:47:55,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 944 transitions. [2022-01-19 07:47:55,022 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 134.85714285714286) internal successors, (944), 7 states have internal predecessors, (944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:55,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:55,023 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 165.0) internal successors, (1320), 8 states have internal predecessors, (1320), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:55,023 INFO L186 Difference]: Start difference. First operand has 204 places, 487 transitions, 5553 flow. Second operand 7 states and 944 transitions. [2022-01-19 07:47:55,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 561 transitions, 7428 flow [2022-01-19 07:47:55,220 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 561 transitions, 7146 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-01-19 07:47:55,226 INFO L242 Difference]: Finished difference. Result has 205 places, 521 transitions, 6754 flow [2022-01-19 07:47:55,227 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=4829, PETRI_DIFFERENCE_MINUEND_PLACES=197, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=453, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=182, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=6754, PETRI_PLACES=205, PETRI_TRANSITIONS=521} [2022-01-19 07:47:55,227 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 46 predicate places. [2022-01-19 07:47:55,227 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 521 transitions, 6754 flow [2022-01-19 07:47:55,227 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 126.57142857142857) internal successors, (886), 7 states have internal predecessors, (886), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:55,227 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:47:55,228 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] [2022-01-19 07:47:55,228 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 07:47:55,228 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:47:55,228 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:47:55,228 INFO L85 PathProgramCache]: Analyzing trace with hash 798052969, now seen corresponding path program 11 times [2022-01-19 07:47:55,228 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:47:55,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341553776] [2022-01-19 07:47:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:47:55,228 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:47:55,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:47:55,345 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 07:47:55,345 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:47:55,345 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341553776] [2022-01-19 07:47:55,345 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [341553776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:47:55,345 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:47:55,345 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:47:55,345 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546224003] [2022-01-19 07:47:55,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:47:55,346 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:47:55,346 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:47:55,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:47:55,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:47:55,347 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 07:47:55,357 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 521 transitions, 6754 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:47:55,357 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:47:55,357 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 07:47:55,357 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:01,129 INFO L129 PetriNetUnfolder]: 26409/43516 cut-off events. [2022-01-19 07:48:01,129 INFO L130 PetriNetUnfolder]: For 355480/355480 co-relation queries the response was YES. [2022-01-19 07:48:01,344 INFO L84 FinitePrefix]: Finished finitePrefix Result has 237788 conditions, 43516 events. 26409/43516 cut-off events. For 355480/355480 co-relation queries the response was YES. Maximal size of possible extension queue 1611. Compared 370246 event pairs, 3507 based on Foata normal form. 457/43172 useless extension candidates. Maximal degree in co-relation 82077. Up to 15759 conditions per place. [2022-01-19 07:48:01,716 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 192 selfloop transitions, 405 changer transitions 2/691 dead transitions. [2022-01-19 07:48:01,716 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 214 places, 691 transitions, 9467 flow [2022-01-19 07:48:01,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:48:01,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:48:01,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1296 transitions. [2022-01-19 07:48:01,718 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7854545454545454 [2022-01-19 07:48:01,718 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1296 transitions. [2022-01-19 07:48:01,718 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1296 transitions. [2022-01-19 07:48:01,719 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:01,719 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1296 transitions. [2022-01-19 07:48:01,721 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 129.6) internal successors, (1296), 10 states have internal predecessors, (1296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:01,722 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:01,722 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:01,722 INFO L186 Difference]: Start difference. First operand has 205 places, 521 transitions, 6754 flow. Second operand 10 states and 1296 transitions. [2022-01-19 07:48:01,722 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 214 places, 691 transitions, 9467 flow [2022-01-19 07:48:02,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 691 transitions, 9164 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 07:48:02,056 INFO L242 Difference]: Finished difference. Result has 211 places, 564 transitions, 8216 flow [2022-01-19 07:48:02,057 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=6490, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=521, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=8216, PETRI_PLACES=211, PETRI_TRANSITIONS=564} [2022-01-19 07:48:02,057 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 52 predicate places. [2022-01-19 07:48:02,057 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 564 transitions, 8216 flow [2022-01-19 07:48:02,058 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:02,058 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:02,058 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] [2022-01-19 07:48:02,058 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 07:48:02,058 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:02,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:02,058 INFO L85 PathProgramCache]: Analyzing trace with hash -1774997625, now seen corresponding path program 12 times [2022-01-19 07:48:02,058 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:02,058 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994340878] [2022-01-19 07:48:02,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:02,059 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:02,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:02,166 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 07:48:02,167 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:02,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994340878] [2022-01-19 07:48:02,167 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994340878] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:02,167 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:02,167 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:48:02,167 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360500951] [2022-01-19 07:48:02,167 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:02,167 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:48:02,167 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:02,168 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:48:02,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:48:02,168 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 07:48:02,169 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 564 transitions, 8216 flow. Second operand has 9 states, 9 states have (on average 116.44444444444444) internal successors, (1048), 9 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:02,169 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:02,169 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 07:48:02,169 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:08,721 INFO L129 PetriNetUnfolder]: 26465/47012 cut-off events. [2022-01-19 07:48:08,721 INFO L130 PetriNetUnfolder]: For 435060/435060 co-relation queries the response was YES. [2022-01-19 07:48:08,934 INFO L84 FinitePrefix]: Finished finitePrefix Result has 254445 conditions, 47012 events. 26465/47012 cut-off events. For 435060/435060 co-relation queries the response was YES. Maximal size of possible extension queue 1741. Compared 435910 event pairs, 4717 based on Foata normal form. 302/46438 useless extension candidates. Maximal degree in co-relation 81297. Up to 13763 conditions per place. [2022-01-19 07:48:09,167 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 227 selfloop transitions, 392 changer transitions 1/712 dead transitions. [2022-01-19 07:48:09,168 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 712 transitions, 10720 flow [2022-01-19 07:48:09,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:48:09,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:48:09,169 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1163 transitions. [2022-01-19 07:48:09,170 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7831649831649832 [2022-01-19 07:48:09,170 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1163 transitions. [2022-01-19 07:48:09,170 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1163 transitions. [2022-01-19 07:48:09,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:09,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1163 transitions. [2022-01-19 07:48:09,173 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 129.22222222222223) internal successors, (1163), 9 states have internal predecessors, (1163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:09,174 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:09,175 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:09,175 INFO L186 Difference]: Start difference. First operand has 211 places, 564 transitions, 8216 flow. Second operand 9 states and 1163 transitions. [2022-01-19 07:48:09,175 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 712 transitions, 10720 flow [2022-01-19 07:48:09,556 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 712 transitions, 10253 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-01-19 07:48:09,565 INFO L242 Difference]: Finished difference. Result has 213 places, 594 transitions, 9281 flow [2022-01-19 07:48:09,565 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=7787, PETRI_DIFFERENCE_MINUEND_PLACES=204, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=564, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=362, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=9281, PETRI_PLACES=213, PETRI_TRANSITIONS=594} [2022-01-19 07:48:09,565 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 54 predicate places. [2022-01-19 07:48:09,566 INFO L470 AbstractCegarLoop]: Abstraction has has 213 places, 594 transitions, 9281 flow [2022-01-19 07:48:09,566 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 116.44444444444444) internal successors, (1048), 9 states have internal predecessors, (1048), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:09,566 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:09,566 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] [2022-01-19 07:48:09,566 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 07:48:09,566 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:09,567 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:09,567 INFO L85 PathProgramCache]: Analyzing trace with hash 480995595, now seen corresponding path program 13 times [2022-01-19 07:48:09,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:09,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1979898382] [2022-01-19 07:48:09,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:09,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:09,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:09,686 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 07:48:09,687 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:09,687 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1979898382] [2022-01-19 07:48:09,687 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1979898382] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:09,687 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:09,687 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:48:09,687 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1105207537] [2022-01-19 07:48:09,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:09,688 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:48:09,688 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:09,688 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:48:09,688 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:48:09,689 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 07:48:09,689 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 213 places, 594 transitions, 9281 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:09,689 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:09,689 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 07:48:09,689 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:17,032 INFO L129 PetriNetUnfolder]: 27397/48818 cut-off events. [2022-01-19 07:48:17,032 INFO L130 PetriNetUnfolder]: For 500100/500129 co-relation queries the response was YES. [2022-01-19 07:48:17,287 INFO L84 FinitePrefix]: Finished finitePrefix Result has 275584 conditions, 48818 events. 27397/48818 cut-off events. For 500100/500129 co-relation queries the response was YES. Maximal size of possible extension queue 1838. Compared 456899 event pairs, 4803 based on Foata normal form. 1293/49104 useless extension candidates. Maximal degree in co-relation 70927. Up to 13911 conditions per place. [2022-01-19 07:48:17,535 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 275 selfloop transitions, 472 changer transitions 1/840 dead transitions. [2022-01-19 07:48:17,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 223 places, 840 transitions, 13432 flow [2022-01-19 07:48:17,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 07:48:17,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 07:48:17,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1429 transitions. [2022-01-19 07:48:17,537 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.78732782369146 [2022-01-19 07:48:17,537 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1429 transitions. [2022-01-19 07:48:17,537 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1429 transitions. [2022-01-19 07:48:17,537 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:17,537 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1429 transitions. [2022-01-19 07:48:17,539 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.9090909090909) internal successors, (1429), 11 states have internal predecessors, (1429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:17,540 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:17,540 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:17,540 INFO L186 Difference]: Start difference. First operand has 213 places, 594 transitions, 9281 flow. Second operand 11 states and 1429 transitions. [2022-01-19 07:48:17,541 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 223 places, 840 transitions, 13432 flow [2022-01-19 07:48:18,247 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 215 places, 840 transitions, 12585 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-01-19 07:48:18,257 INFO L242 Difference]: Finished difference. Result has 217 places, 674 transitions, 11261 flow [2022-01-19 07:48:18,257 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=8591, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=594, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=392, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=202, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=11261, PETRI_PLACES=217, PETRI_TRANSITIONS=674} [2022-01-19 07:48:18,258 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 58 predicate places. [2022-01-19 07:48:18,258 INFO L470 AbstractCegarLoop]: Abstraction has has 217 places, 674 transitions, 11261 flow [2022-01-19 07:48:18,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:18,258 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:18,258 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] [2022-01-19 07:48:18,259 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 07:48:18,259 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:18,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:18,259 INFO L85 PathProgramCache]: Analyzing trace with hash -1373239683, now seen corresponding path program 14 times [2022-01-19 07:48:18,259 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:18,259 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253146590] [2022-01-19 07:48:18,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:18,259 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:18,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:18,350 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 07:48:18,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:18,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253146590] [2022-01-19 07:48:18,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253146590] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:18,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:18,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:48:18,351 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [119360669] [2022-01-19 07:48:18,351 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:18,351 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:48:18,352 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:18,352 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:48:18,352 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:48:18,352 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:48:18,353 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 217 places, 674 transitions, 11261 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:18,353 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:18,353 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:48:18,353 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:23,055 INFO L129 PetriNetUnfolder]: 15479/30504 cut-off events. [2022-01-19 07:48:23,056 INFO L130 PetriNetUnfolder]: For 380728/396936 co-relation queries the response was YES. [2022-01-19 07:48:23,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 173496 conditions, 30504 events. 15479/30504 cut-off events. For 380728/396936 co-relation queries the response was YES. Maximal size of possible extension queue 1511. Compared 307498 event pairs, 2037 based on Foata normal form. 4530/33345 useless extension candidates. Maximal degree in co-relation 59822. Up to 8008 conditions per place. [2022-01-19 07:48:23,379 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 113 selfloop transitions, 569 changer transitions 2/795 dead transitions. [2022-01-19 07:48:23,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 795 transitions, 14273 flow [2022-01-19 07:48:23,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 07:48:23,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 07:48:23,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1230 transitions. [2022-01-19 07:48:23,381 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8282828282828283 [2022-01-19 07:48:23,381 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1230 transitions. [2022-01-19 07:48:23,381 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1230 transitions. [2022-01-19 07:48:23,381 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:23,381 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1230 transitions. [2022-01-19 07:48:23,382 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 136.66666666666666) internal successors, (1230), 9 states have internal predecessors, (1230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:23,383 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:23,384 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 165.0) internal successors, (1650), 10 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:23,384 INFO L186 Difference]: Start difference. First operand has 217 places, 674 transitions, 11261 flow. Second operand 9 states and 1230 transitions. [2022-01-19 07:48:23,384 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 795 transitions, 14273 flow [2022-01-19 07:48:23,769 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 795 transitions, 13582 flow, removed 0 selfloop flow, removed 7 redundant places. [2022-01-19 07:48:23,779 INFO L242 Difference]: Finished difference. Result has 219 places, 728 transitions, 13091 flow [2022-01-19 07:48:23,780 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=10637, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=674, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=514, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=160, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=13091, PETRI_PLACES=219, PETRI_TRANSITIONS=728} [2022-01-19 07:48:23,780 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 60 predicate places. [2022-01-19 07:48:23,780 INFO L470 AbstractCegarLoop]: Abstraction has has 219 places, 728 transitions, 13091 flow [2022-01-19 07:48:23,781 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:23,781 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:23,781 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] [2022-01-19 07:48:23,781 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 07:48:23,781 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:23,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:23,781 INFO L85 PathProgramCache]: Analyzing trace with hash -607118811, now seen corresponding path program 15 times [2022-01-19 07:48:23,781 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:23,781 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588903209] [2022-01-19 07:48:23,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:23,782 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:23,878 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 07:48:23,878 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:23,879 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588903209] [2022-01-19 07:48:23,879 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588903209] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:23,879 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:23,879 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 07:48:23,879 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [315244918] [2022-01-19 07:48:23,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:23,879 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 07:48:23,879 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:23,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 07:48:23,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2022-01-19 07:48:23,880 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:48:23,881 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 219 places, 728 transitions, 13091 flow. Second operand has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:23,881 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:23,881 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:48:23,881 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:28,791 INFO L129 PetriNetUnfolder]: 15027/31282 cut-off events. [2022-01-19 07:48:28,791 INFO L130 PetriNetUnfolder]: For 403358/418218 co-relation queries the response was YES. [2022-01-19 07:48:28,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177232 conditions, 31282 events. 15027/31282 cut-off events. For 403358/418218 co-relation queries the response was YES. Maximal size of possible extension queue 1606. Compared 330068 event pairs, 2122 based on Foata normal form. 4131/33816 useless extension candidates. Maximal degree in co-relation 57623. Up to 7362 conditions per place. [2022-01-19 07:48:29,106 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 156 selfloop transitions, 554 changer transitions 3/824 dead transitions. [2022-01-19 07:48:29,106 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 824 transitions, 15613 flow [2022-01-19 07:48:29,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 07:48:29,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 07:48:29,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1093 transitions. [2022-01-19 07:48:29,113 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.828030303030303 [2022-01-19 07:48:29,113 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1093 transitions. [2022-01-19 07:48:29,113 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1093 transitions. [2022-01-19 07:48:29,114 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:29,114 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1093 transitions. [2022-01-19 07:48:29,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 136.625) internal successors, (1093), 8 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:29,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:29,116 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 165.0) internal successors, (1485), 9 states have internal predecessors, (1485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:29,116 INFO L186 Difference]: Start difference. First operand has 219 places, 728 transitions, 13091 flow. Second operand 8 states and 1093 transitions. [2022-01-19 07:48:29,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 824 transitions, 15613 flow [2022-01-19 07:48:29,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 824 transitions, 14827 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 07:48:29,474 INFO L242 Difference]: Finished difference. Result has 221 places, 756 transitions, 14219 flow [2022-01-19 07:48:29,474 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=12327, PETRI_DIFFERENCE_MINUEND_PLACES=213, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=727, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=524, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=14219, PETRI_PLACES=221, PETRI_TRANSITIONS=756} [2022-01-19 07:48:29,474 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 62 predicate places. [2022-01-19 07:48:29,475 INFO L470 AbstractCegarLoop]: Abstraction has has 221 places, 756 transitions, 14219 flow [2022-01-19 07:48:29,475 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 125.875) internal successors, (1007), 8 states have internal predecessors, (1007), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:29,475 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:29,475 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] [2022-01-19 07:48:29,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 07:48:29,475 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:29,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:29,475 INFO L85 PathProgramCache]: Analyzing trace with hash 477228837, now seen corresponding path program 16 times [2022-01-19 07:48:29,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:29,476 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625602823] [2022-01-19 07:48:29,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:29,476 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:29,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:29,560 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 07:48:29,560 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:29,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625602823] [2022-01-19 07:48:29,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [625602823] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:29,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:29,562 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:48:29,562 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441989494] [2022-01-19 07:48:29,562 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:29,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:48:29,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:48:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:48:29,564 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:48:29,564 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 756 transitions, 14219 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:29,564 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:29,564 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:48:29,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:34,764 INFO L129 PetriNetUnfolder]: 14582/30749 cut-off events. [2022-01-19 07:48:34,764 INFO L130 PetriNetUnfolder]: For 429130/443928 co-relation queries the response was YES. [2022-01-19 07:48:34,918 INFO L84 FinitePrefix]: Finished finitePrefix Result has 177544 conditions, 30749 events. 14582/30749 cut-off events. For 429130/443928 co-relation queries the response was YES. Maximal size of possible extension queue 1541. Compared 328445 event pairs, 1991 based on Foata normal form. 4231/33535 useless extension candidates. Maximal degree in co-relation 101100. Up to 6722 conditions per place. [2022-01-19 07:48:35,077 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 181 selfloop transitions, 617 changer transitions 5/914 dead transitions. [2022-01-19 07:48:35,077 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 914 transitions, 17974 flow [2022-01-19 07:48:35,078 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:48:35,078 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:48:35,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1367 transitions. [2022-01-19 07:48:35,079 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8284848484848485 [2022-01-19 07:48:35,079 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1367 transitions. [2022-01-19 07:48:35,079 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1367 transitions. [2022-01-19 07:48:35,079 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:35,079 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1367 transitions. [2022-01-19 07:48:35,080 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.7) internal successors, (1367), 10 states have internal predecessors, (1367), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:35,081 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:35,081 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:35,083 INFO L186 Difference]: Start difference. First operand has 221 places, 756 transitions, 14219 flow. Second operand 10 states and 1367 transitions. [2022-01-19 07:48:35,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 914 transitions, 17974 flow [2022-01-19 07:48:35,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 914 transitions, 17002 flow, removed 8 selfloop flow, removed 7 redundant places. [2022-01-19 07:48:35,443 INFO L242 Difference]: Finished difference. Result has 225 places, 819 transitions, 16178 flow [2022-01-19 07:48:35,443 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=13344, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=756, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=552, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=16178, PETRI_PLACES=225, PETRI_TRANSITIONS=819} [2022-01-19 07:48:35,444 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 66 predicate places. [2022-01-19 07:48:35,444 INFO L470 AbstractCegarLoop]: Abstraction has has 225 places, 819 transitions, 16178 flow [2022-01-19 07:48:35,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:35,444 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:35,444 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] [2022-01-19 07:48:35,444 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 07:48:35,445 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:35,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:35,447 INFO L85 PathProgramCache]: Analyzing trace with hash 149891473, now seen corresponding path program 17 times [2022-01-19 07:48:35,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:35,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257303811] [2022-01-19 07:48:35,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:35,447 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:35,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:35,524 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 07:48:35,524 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:35,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257303811] [2022-01-19 07:48:35,524 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257303811] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:35,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:35,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 07:48:35,525 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324683260] [2022-01-19 07:48:35,525 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:35,525 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 07:48:35,525 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:35,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 07:48:35,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2022-01-19 07:48:35,526 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:48:35,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 225 places, 819 transitions, 16178 flow. Second operand has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:35,527 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:35,527 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:48:35,527 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:40,783 INFO L129 PetriNetUnfolder]: 13644/29622 cut-off events. [2022-01-19 07:48:40,783 INFO L130 PetriNetUnfolder]: For 430811/442925 co-relation queries the response was YES. [2022-01-19 07:48:40,927 INFO L84 FinitePrefix]: Finished finitePrefix Result has 172092 conditions, 29622 events. 13644/29622 cut-off events. For 430811/442925 co-relation queries the response was YES. Maximal size of possible extension queue 1532. Compared 321492 event pairs, 1995 based on Foata normal form. 3362/31557 useless extension candidates. Maximal degree in co-relation 66242. Up to 6385 conditions per place. [2022-01-19 07:48:41,069 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 177 selfloop transitions, 667 changer transitions 13/968 dead transitions. [2022-01-19 07:48:41,070 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 234 places, 968 transitions, 19921 flow [2022-01-19 07:48:41,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 07:48:41,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 07:48:41,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1364 transitions. [2022-01-19 07:48:41,071 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8266666666666667 [2022-01-19 07:48:41,071 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1364 transitions. [2022-01-19 07:48:41,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1364 transitions. [2022-01-19 07:48:41,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:41,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1364 transitions. [2022-01-19 07:48:41,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 136.4) internal successors, (1364), 10 states have internal predecessors, (1364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:41,074 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:41,074 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 165.0) internal successors, (1815), 11 states have internal predecessors, (1815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:41,074 INFO L186 Difference]: Start difference. First operand has 225 places, 819 transitions, 16178 flow. Second operand 10 states and 1364 transitions. [2022-01-19 07:48:41,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 234 places, 968 transitions, 19921 flow [2022-01-19 07:48:41,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 230 places, 968 transitions, 19793 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 07:48:41,457 INFO L242 Difference]: Finished difference. Result has 232 places, 869 transitions, 18793 flow [2022-01-19 07:48:41,458 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=15990, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=816, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=606, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=18793, PETRI_PLACES=232, PETRI_TRANSITIONS=869} [2022-01-19 07:48:41,458 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 73 predicate places. [2022-01-19 07:48:41,459 INFO L470 AbstractCegarLoop]: Abstraction has has 232 places, 869 transitions, 18793 flow [2022-01-19 07:48:41,459 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 125.33333333333333) internal successors, (1128), 9 states have internal predecessors, (1128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:41,459 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:41,459 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] [2022-01-19 07:48:41,459 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 07:48:41,459 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:41,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:41,459 INFO L85 PathProgramCache]: Analyzing trace with hash -1012830015, now seen corresponding path program 18 times [2022-01-19 07:48:41,459 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:41,460 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84931599] [2022-01-19 07:48:41,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:41,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:41,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:41,582 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 07:48:41,582 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:41,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84931599] [2022-01-19 07:48:41,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84931599] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:41,582 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:41,582 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:48:41,582 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [324321384] [2022-01-19 07:48:41,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:41,583 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:48:41,583 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:41,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:48:41,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:48:41,584 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 07:48:41,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 232 places, 869 transitions, 18793 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:41,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:41,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 07:48:41,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:50,841 INFO L129 PetriNetUnfolder]: 23301/42640 cut-off events. [2022-01-19 07:48:50,842 INFO L130 PetriNetUnfolder]: For 644544/644544 co-relation queries the response was YES. [2022-01-19 07:48:51,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 278365 conditions, 42640 events. 23301/42640 cut-off events. For 644544/644544 co-relation queries the response was YES. Maximal size of possible extension queue 1766. Compared 413297 event pairs, 2775 based on Foata normal form. 249/42095 useless extension candidates. Maximal degree in co-relation 100418. Up to 13889 conditions per place. [2022-01-19 07:48:51,302 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 211 selfloop transitions, 741 changer transitions 5/1049 dead transitions. [2022-01-19 07:48:51,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 1049 transitions, 22120 flow [2022-01-19 07:48:51,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 07:48:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 07:48:51,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1428 transitions. [2022-01-19 07:48:51,304 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7867768595041322 [2022-01-19 07:48:51,304 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1428 transitions. [2022-01-19 07:48:51,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1428 transitions. [2022-01-19 07:48:51,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:51,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1428 transitions. [2022-01-19 07:48:51,305 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.8181818181818) internal successors, (1428), 11 states have internal predecessors, (1428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:51,306 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:51,311 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:51,311 INFO L186 Difference]: Start difference. First operand has 232 places, 869 transitions, 18793 flow. Second operand 11 states and 1428 transitions. [2022-01-19 07:48:51,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 1049 transitions, 22120 flow [2022-01-19 07:48:52,595 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 1049 transitions, 21984 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 07:48:52,611 INFO L242 Difference]: Finished difference. Result has 240 places, 900 transitions, 20926 flow [2022-01-19 07:48:52,612 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=18665, PETRI_DIFFERENCE_MINUEND_PLACES=228, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=869, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=710, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=159, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=20926, PETRI_PLACES=240, PETRI_TRANSITIONS=900} [2022-01-19 07:48:52,612 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 81 predicate places. [2022-01-19 07:48:52,612 INFO L470 AbstractCegarLoop]: Abstraction has has 240 places, 900 transitions, 20926 flow [2022-01-19 07:48:52,612 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:52,612 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:48:52,612 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] [2022-01-19 07:48:52,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 07:48:52,613 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:48:52,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:48:52,613 INFO L85 PathProgramCache]: Analyzing trace with hash 687054829, now seen corresponding path program 19 times [2022-01-19 07:48:52,613 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:48:52,613 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [284178460] [2022-01-19 07:48:52,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:48:52,613 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:48:52,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:48:52,728 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 07:48:52,728 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:48:52,728 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [284178460] [2022-01-19 07:48:52,729 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [284178460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:48:52,729 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:48:52,729 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:48:52,729 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [360772888] [2022-01-19 07:48:52,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:48:52,729 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:48:52,729 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:48:52,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:48:52,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:48:52,730 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 165 [2022-01-19 07:48:52,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 900 transitions, 20926 flow. Second operand has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:52,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:48:52,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 165 [2022-01-19 07:48:52,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:48:59,095 INFO L129 PetriNetUnfolder]: 14114/28108 cut-off events. [2022-01-19 07:48:59,095 INFO L130 PetriNetUnfolder]: For 446043/446057 co-relation queries the response was YES. [2022-01-19 07:48:59,261 INFO L84 FinitePrefix]: Finished finitePrefix Result has 193679 conditions, 28108 events. 14114/28108 cut-off events. For 446043/446057 co-relation queries the response was YES. Maximal size of possible extension queue 1334. Compared 277297 event pairs, 2090 based on Foata normal form. 1479/28910 useless extension candidates. Maximal degree in co-relation 113960. Up to 6832 conditions per place. [2022-01-19 07:48:59,383 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 252 selfloop transitions, 742 changer transitions 56/1142 dead transitions. [2022-01-19 07:48:59,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 250 places, 1142 transitions, 26811 flow [2022-01-19 07:48:59,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 07:48:59,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 07:48:59,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1421 transitions. [2022-01-19 07:48:59,385 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7829201101928375 [2022-01-19 07:48:59,385 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1421 transitions. [2022-01-19 07:48:59,385 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1421 transitions. [2022-01-19 07:48:59,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:48:59,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1421 transitions. [2022-01-19 07:48:59,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.1818181818182) internal successors, (1421), 11 states have internal predecessors, (1421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:59,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:59,388 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:48:59,388 INFO L186 Difference]: Start difference. First operand has 240 places, 900 transitions, 20926 flow. Second operand 11 states and 1421 transitions. [2022-01-19 07:48:59,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 250 places, 1142 transitions, 26811 flow [2022-01-19 07:49:00,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 1142 transitions, 25287 flow, removed 8 selfloop flow, removed 8 redundant places. [2022-01-19 07:49:00,410 INFO L242 Difference]: Finished difference. Result has 245 places, 950 transitions, 22998 flow [2022-01-19 07:49:00,411 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=18826, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=644, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=22998, PETRI_PLACES=245, PETRI_TRANSITIONS=950} [2022-01-19 07:49:00,411 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 86 predicate places. [2022-01-19 07:49:00,411 INFO L470 AbstractCegarLoop]: Abstraction has has 245 places, 950 transitions, 22998 flow [2022-01-19 07:49:00,412 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 115.9) internal successors, (1159), 10 states have internal predecessors, (1159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:00,412 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:49:00,412 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] [2022-01-19 07:49:00,412 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 07:49:00,412 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:49:00,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:49:00,412 INFO L85 PathProgramCache]: Analyzing trace with hash 674938377, now seen corresponding path program 20 times [2022-01-19 07:49:00,412 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:49:00,412 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736702994] [2022-01-19 07:49:00,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:49:00,412 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:49:00,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:49:00,495 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 07:49:00,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:49:00,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736702994] [2022-01-19 07:49:00,495 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736702994] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:49:00,495 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:49:00,495 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:49:00,495 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936572742] [2022-01-19 07:49:00,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:49:00,496 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:49:00,496 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:49:00,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:49:00,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:49:00,497 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:49:00,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 950 transitions, 22998 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:00,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:49:00,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:49:00,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:49:05,092 INFO L129 PetriNetUnfolder]: 8623/20282 cut-off events. [2022-01-19 07:49:05,092 INFO L130 PetriNetUnfolder]: For 362594/369465 co-relation queries the response was YES. [2022-01-19 07:49:05,212 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137246 conditions, 20282 events. 8623/20282 cut-off events. For 362594/369465 co-relation queries the response was YES. Maximal size of possible extension queue 1106. Compared 218908 event pairs, 964 based on Foata normal form. 2455/21922 useless extension candidates. Maximal degree in co-relation 59589. Up to 4193 conditions per place. [2022-01-19 07:49:05,302 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 125 selfloop transitions, 863 changer transitions 39/1138 dead transitions. [2022-01-19 07:49:05,302 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 1138 transitions, 28351 flow [2022-01-19 07:49:05,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 07:49:05,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 07:49:05,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1498 transitions. [2022-01-19 07:49:05,304 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8253443526170798 [2022-01-19 07:49:05,304 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1498 transitions. [2022-01-19 07:49:05,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1498 transitions. [2022-01-19 07:49:05,304 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:49:05,304 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1498 transitions. [2022-01-19 07:49:05,306 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 136.1818181818182) internal successors, (1498), 11 states have internal predecessors, (1498), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:05,307 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:05,307 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 165.0) internal successors, (1980), 12 states have internal predecessors, (1980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:05,307 INFO L186 Difference]: Start difference. First operand has 245 places, 950 transitions, 22998 flow. Second operand 11 states and 1498 transitions. [2022-01-19 07:49:05,307 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 1138 transitions, 28351 flow [2022-01-19 07:49:06,186 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 1138 transitions, 28020 flow, removed 5 selfloop flow, removed 6 redundant places. [2022-01-19 07:49:06,205 INFO L242 Difference]: Finished difference. Result has 251 places, 1022 transitions, 26649 flow [2022-01-19 07:49:06,205 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=22700, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=950, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=767, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=183, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=26649, PETRI_PLACES=251, PETRI_TRANSITIONS=1022} [2022-01-19 07:49:06,206 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 92 predicate places. [2022-01-19 07:49:06,206 INFO L470 AbstractCegarLoop]: Abstraction has has 251 places, 1022 transitions, 26649 flow [2022-01-19 07:49:06,206 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:06,206 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:49:06,206 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] [2022-01-19 07:49:06,206 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 07:49:06,206 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:49:06,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:49:06,206 INFO L85 PathProgramCache]: Analyzing trace with hash -2131165535, now seen corresponding path program 21 times [2022-01-19 07:49:06,207 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:49:06,207 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98315241] [2022-01-19 07:49:06,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:49:06,207 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:49:06,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:49:06,291 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 07:49:06,291 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:49:06,291 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98315241] [2022-01-19 07:49:06,291 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [98315241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:49:06,291 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:49:06,291 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 07:49:06,291 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1899798] [2022-01-19 07:49:06,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:49:06,292 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 07:49:06,292 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:49:06,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 07:49:06,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 07:49:06,293 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:49:06,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 1022 transitions, 26649 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:06,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:49:06,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:49:06,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:49:11,568 INFO L129 PetriNetUnfolder]: 8579/21312 cut-off events. [2022-01-19 07:49:11,569 INFO L130 PetriNetUnfolder]: For 442446/450043 co-relation queries the response was YES. [2022-01-19 07:49:11,693 INFO L84 FinitePrefix]: Finished finitePrefix Result has 148542 conditions, 21312 events. 8579/21312 cut-off events. For 442446/450043 co-relation queries the response was YES. Maximal size of possible extension queue 1216. Compared 239704 event pairs, 1093 based on Foata normal form. 2411/22916 useless extension candidates. Maximal degree in co-relation 64724. Up to 4338 conditions per place. [2022-01-19 07:49:11,940 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 160 selfloop transitions, 979 changer transitions 34/1284 dead transitions. [2022-01-19 07:49:11,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 1284 transitions, 34068 flow [2022-01-19 07:49:11,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 07:49:11,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 07:49:11,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1908 transitions. [2022-01-19 07:49:11,942 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.825974025974026 [2022-01-19 07:49:11,942 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1908 transitions. [2022-01-19 07:49:11,942 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1908 transitions. [2022-01-19 07:49:11,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:49:11,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1908 transitions. [2022-01-19 07:49:11,945 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 136.28571428571428) internal successors, (1908), 14 states have internal predecessors, (1908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:11,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:11,946 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:11,946 INFO L186 Difference]: Start difference. First operand has 251 places, 1022 transitions, 26649 flow. Second operand 14 states and 1908 transitions. [2022-01-19 07:49:11,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 1284 transitions, 34068 flow [2022-01-19 07:49:12,982 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 1284 transitions, 33443 flow, removed 11 selfloop flow, removed 6 redundant places. [2022-01-19 07:49:13,004 INFO L242 Difference]: Finished difference. Result has 261 places, 1138 transitions, 31502 flow [2022-01-19 07:49:13,004 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=26034, PETRI_DIFFERENCE_MINUEND_PLACES=245, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1018, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=838, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=180, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=31502, PETRI_PLACES=261, PETRI_TRANSITIONS=1138} [2022-01-19 07:49:13,005 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 102 predicate places. [2022-01-19 07:49:13,005 INFO L470 AbstractCegarLoop]: Abstraction has has 261 places, 1138 transitions, 31502 flow [2022-01-19 07:49:13,005 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:13,005 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:49:13,005 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] [2022-01-19 07:49:13,005 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 07:49:13,005 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:49:13,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:49:13,006 INFO L85 PathProgramCache]: Analyzing trace with hash 449738703, now seen corresponding path program 22 times [2022-01-19 07:49:13,006 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:49:13,006 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810700006] [2022-01-19 07:49:13,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:49:13,006 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:49:13,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:49:13,113 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 07:49:13,113 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:49:13,113 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810700006] [2022-01-19 07:49:13,113 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810700006] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:49:13,113 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:49:13,113 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 07:49:13,114 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1030323776] [2022-01-19 07:49:13,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:49:13,114 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 07:49:13,114 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:49:13,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 07:49:13,115 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 07:49:13,115 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:49:13,116 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 1138 transitions, 31502 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:13,116 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:49:13,116 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:49:13,116 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:49:18,941 INFO L129 PetriNetUnfolder]: 8582/21892 cut-off events. [2022-01-19 07:49:18,942 INFO L130 PetriNetUnfolder]: For 500025/507571 co-relation queries the response was YES. [2022-01-19 07:49:19,118 INFO L84 FinitePrefix]: Finished finitePrefix Result has 157580 conditions, 21892 events. 8582/21892 cut-off events. For 500025/507571 co-relation queries the response was YES. Maximal size of possible extension queue 1269. Compared 252427 event pairs, 976 based on Foata normal form. 2078/23177 useless extension candidates. Maximal degree in co-relation 95043. Up to 4433 conditions per place. [2022-01-19 07:49:19,214 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 154 selfloop transitions, 1023 changer transitions 52/1340 dead transitions. [2022-01-19 07:49:19,214 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 1340 transitions, 37317 flow [2022-01-19 07:49:19,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 07:49:19,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 07:49:19,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1902 transitions. [2022-01-19 07:49:19,215 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8233766233766234 [2022-01-19 07:49:19,216 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1902 transitions. [2022-01-19 07:49:19,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1902 transitions. [2022-01-19 07:49:19,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:49:19,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1902 transitions. [2022-01-19 07:49:19,217 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.85714285714286) internal successors, (1902), 14 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:19,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:19,219 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:19,219 INFO L186 Difference]: Start difference. First operand has 261 places, 1138 transitions, 31502 flow. Second operand 14 states and 1902 transitions. [2022-01-19 07:49:19,219 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 1340 transitions, 37317 flow [2022-01-19 07:49:20,741 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 268 places, 1340 transitions, 36477 flow, removed 10 selfloop flow, removed 6 redundant places. [2022-01-19 07:49:20,764 INFO L242 Difference]: Finished difference. Result has 271 places, 1182 transitions, 33729 flow [2022-01-19 07:49:20,765 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=30754, PETRI_DIFFERENCE_MINUEND_PLACES=255, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1137, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=937, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=33729, PETRI_PLACES=271, PETRI_TRANSITIONS=1182} [2022-01-19 07:49:20,765 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 112 predicate places. [2022-01-19 07:49:20,765 INFO L470 AbstractCegarLoop]: Abstraction has has 271 places, 1182 transitions, 33729 flow [2022-01-19 07:49:20,766 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:20,766 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:49:20,766 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] [2022-01-19 07:49:20,766 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 07:49:20,766 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:49:20,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:49:20,766 INFO L85 PathProgramCache]: Analyzing trace with hash -560873309, now seen corresponding path program 23 times [2022-01-19 07:49:20,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:49:20,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [535484156] [2022-01-19 07:49:20,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:49:20,767 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:49:20,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:49:20,857 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 07:49:20,858 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:49:20,858 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [535484156] [2022-01-19 07:49:20,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [535484156] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:49:20,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:49:20,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 07:49:20,858 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690777485] [2022-01-19 07:49:20,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:49:20,858 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 07:49:20,858 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:49:20,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 07:49:20,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 07:49:20,859 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:49:20,860 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 1182 transitions, 33729 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:20,860 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:49:20,860 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:49:20,860 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:49:27,209 INFO L129 PetriNetUnfolder]: 8382/21715 cut-off events. [2022-01-19 07:49:27,209 INFO L130 PetriNetUnfolder]: For 555200/561610 co-relation queries the response was YES. [2022-01-19 07:49:27,421 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163554 conditions, 21715 events. 8382/21715 cut-off events. For 555200/561610 co-relation queries the response was YES. Maximal size of possible extension queue 1308. Compared 253808 event pairs, 1083 based on Foata normal form. 1902/22811 useless extension candidates. Maximal degree in co-relation 81573. Up to 4467 conditions per place. [2022-01-19 07:49:27,536 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 144 selfloop transitions, 1043 changer transitions 94/1392 dead transitions. [2022-01-19 07:49:27,536 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 1392 transitions, 40567 flow [2022-01-19 07:49:27,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 07:49:27,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 07:49:27,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1900 transitions. [2022-01-19 07:49:27,538 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8225108225108225 [2022-01-19 07:49:27,538 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1900 transitions. [2022-01-19 07:49:27,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1900 transitions. [2022-01-19 07:49:27,538 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:49:27,538 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1900 transitions. [2022-01-19 07:49:27,540 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 135.71428571428572) internal successors, (1900), 14 states have internal predecessors, (1900), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:27,541 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:27,542 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:27,542 INFO L186 Difference]: Start difference. First operand has 271 places, 1182 transitions, 33729 flow. Second operand 14 states and 1900 transitions. [2022-01-19 07:49:27,542 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 1392 transitions, 40567 flow [2022-01-19 07:49:29,611 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 1392 transitions, 39142 flow, removed 22 selfloop flow, removed 8 redundant places. [2022-01-19 07:49:29,639 INFO L242 Difference]: Finished difference. Result has 278 places, 1202 transitions, 34772 flow [2022-01-19 07:49:29,640 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=32457, PETRI_DIFFERENCE_MINUEND_PLACES=263, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1182, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=945, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=34772, PETRI_PLACES=278, PETRI_TRANSITIONS=1202} [2022-01-19 07:49:29,640 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 119 predicate places. [2022-01-19 07:49:29,640 INFO L470 AbstractCegarLoop]: Abstraction has has 278 places, 1202 transitions, 34772 flow [2022-01-19 07:49:29,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:29,641 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:49:29,641 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] [2022-01-19 07:49:29,641 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 07:49:29,641 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:49:29,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:49:29,641 INFO L85 PathProgramCache]: Analyzing trace with hash 1307665657, now seen corresponding path program 24 times [2022-01-19 07:49:29,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:49:29,642 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914710241] [2022-01-19 07:49:29,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:49:29,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:49:29,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:49:29,741 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 07:49:29,741 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:49:29,741 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914710241] [2022-01-19 07:49:29,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1914710241] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:49:29,741 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:49:29,741 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-01-19 07:49:29,741 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [348920230] [2022-01-19 07:49:29,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:49:29,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-01-19 07:49:29,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:49:29,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-01-19 07:49:29,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2022-01-19 07:49:29,743 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:49:29,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 1202 transitions, 34772 flow. Second operand has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:29,743 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:49:29,743 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:49:29,743 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:49:36,246 INFO L129 PetriNetUnfolder]: 7191/19649 cut-off events. [2022-01-19 07:49:36,246 INFO L130 PetriNetUnfolder]: For 523832/529639 co-relation queries the response was YES. [2022-01-19 07:49:36,443 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152703 conditions, 19649 events. 7191/19649 cut-off events. For 523832/529639 co-relation queries the response was YES. Maximal size of possible extension queue 1262. Compared 233728 event pairs, 814 based on Foata normal form. 2021/20974 useless extension candidates. Maximal degree in co-relation 105532. Up to 4128 conditions per place. [2022-01-19 07:49:36,537 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 156 selfloop transitions, 1048 changer transitions 112/1427 dead transitions. [2022-01-19 07:49:36,537 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 1427 transitions, 41730 flow [2022-01-19 07:49:36,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 07:49:36,538 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 07:49:36,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 1907 transitions. [2022-01-19 07:49:36,540 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8255411255411256 [2022-01-19 07:49:36,540 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 1907 transitions. [2022-01-19 07:49:36,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 1907 transitions. [2022-01-19 07:49:36,540 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:49:36,540 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 1907 transitions. [2022-01-19 07:49:36,542 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 136.21428571428572) internal successors, (1907), 14 states have internal predecessors, (1907), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:36,543 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:36,543 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 165.0) internal successors, (2475), 15 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:36,543 INFO L186 Difference]: Start difference. First operand has 278 places, 1202 transitions, 34772 flow. Second operand 14 states and 1907 transitions. [2022-01-19 07:49:36,543 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 1427 transitions, 41730 flow [2022-01-19 07:49:38,437 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 1427 transitions, 41605 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-01-19 07:49:38,463 INFO L242 Difference]: Finished difference. Result has 290 places, 1205 transitions, 36379 flow [2022-01-19 07:49:38,464 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=34446, PETRI_DIFFERENCE_MINUEND_PLACES=274, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1192, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=939, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=253, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=36379, PETRI_PLACES=290, PETRI_TRANSITIONS=1205} [2022-01-19 07:49:38,464 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 131 predicate places. [2022-01-19 07:49:38,464 INFO L470 AbstractCegarLoop]: Abstraction has has 290 places, 1205 transitions, 36379 flow [2022-01-19 07:49:38,465 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 124.54545454545455) internal successors, (1370), 11 states have internal predecessors, (1370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:38,465 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:49:38,465 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] [2022-01-19 07:49:38,465 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 07:49:38,465 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:49:38,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:49:38,465 INFO L85 PathProgramCache]: Analyzing trace with hash -2145194715, now seen corresponding path program 25 times [2022-01-19 07:49:38,465 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:49:38,465 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942224632] [2022-01-19 07:49:38,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:49:38,466 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:49:38,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:49:38,562 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 07:49:38,562 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:49:38,562 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942224632] [2022-01-19 07:49:38,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942224632] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:49:38,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:49:38,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 07:49:38,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1932950210] [2022-01-19 07:49:38,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:49:38,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 07:49:38,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:49:38,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 07:49:38,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=53, Unknown=0, NotChecked=0, Total=90 [2022-01-19 07:49:38,564 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:49:38,565 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 1205 transitions, 36379 flow. Second operand has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:38,565 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:49:38,565 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:49:38,565 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 07:49:44,021 INFO L129 PetriNetUnfolder]: 6096/16699 cut-off events. [2022-01-19 07:49:44,022 INFO L130 PetriNetUnfolder]: For 479629/484041 co-relation queries the response was YES. [2022-01-19 07:49:44,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 131979 conditions, 16699 events. 6096/16699 cut-off events. For 479629/484041 co-relation queries the response was YES. Maximal size of possible extension queue 1048. Compared 193442 event pairs, 810 based on Foata normal form. 1258/17290 useless extension candidates. Maximal degree in co-relation 67277. Up to 3543 conditions per place. [2022-01-19 07:49:44,261 INFO L132 encePairwiseOnDemand]: 151/165 looper letters, 99 selfloop transitions, 1071 changer transitions 2/1283 dead transitions. [2022-01-19 07:49:44,261 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 301 places, 1283 transitions, 39438 flow [2022-01-19 07:49:44,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 07:49:44,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 07:49:44,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1617 transitions. [2022-01-19 07:49:44,263 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8166666666666667 [2022-01-19 07:49:44,263 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1617 transitions. [2022-01-19 07:49:44,263 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1617 transitions. [2022-01-19 07:49:44,263 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 07:49:44,263 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1617 transitions. [2022-01-19 07:49:44,265 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 134.75) internal successors, (1617), 12 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:44,266 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:44,266 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 165.0) internal successors, (2145), 13 states have internal predecessors, (2145), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:44,266 INFO L186 Difference]: Start difference. First operand has 290 places, 1205 transitions, 36379 flow. Second operand 12 states and 1617 transitions. [2022-01-19 07:49:44,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 301 places, 1283 transitions, 39438 flow [2022-01-19 07:49:46,146 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 1283 transitions, 39318 flow, removed 8 selfloop flow, removed 4 redundant places. [2022-01-19 07:49:46,172 INFO L242 Difference]: Finished difference. Result has 298 places, 1213 transitions, 38546 flow [2022-01-19 07:49:46,173 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=165, PETRI_DIFFERENCE_MINUEND_FLOW=36263, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1063, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=38546, PETRI_PLACES=298, PETRI_TRANSITIONS=1213} [2022-01-19 07:49:46,173 INFO L334 CegarLoopForPetriNet]: 159 programPoint places, 139 predicate places. [2022-01-19 07:49:46,174 INFO L470 AbstractCegarLoop]: Abstraction has has 298 places, 1213 transitions, 38546 flow [2022-01-19 07:49:46,174 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 124.9) internal successors, (1249), 10 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:46,174 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 07:49:46,174 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] [2022-01-19 07:49:46,174 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 07:49:46,174 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-19 07:49:46,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 07:49:46,174 INFO L85 PathProgramCache]: Analyzing trace with hash -1450747203, now seen corresponding path program 26 times [2022-01-19 07:49:46,175 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 07:49:46,175 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [348394309] [2022-01-19 07:49:46,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 07:49:46,175 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 07:49:46,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 07:49:46,261 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 07:49:46,262 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 07:49:46,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [348394309] [2022-01-19 07:49:46,262 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [348394309] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 07:49:46,262 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 07:49:46,262 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2022-01-19 07:49:46,262 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [881501964] [2022-01-19 07:49:46,262 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 07:49:46,263 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 07:49:46,263 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 07:49:46,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 07:49:46,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2022-01-19 07:49:46,265 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 165 [2022-01-19 07:49:46,266 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 1213 transitions, 38546 flow. Second operand has 13 states, 13 states have (on average 124.0) internal successors, (1612), 13 states have internal predecessors, (1612), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 07:49:46,266 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 07:49:46,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 165 [2022-01-19 07:49:46,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand