/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-RepeatedSemanticLbeWithPredicates.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:43:57,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:43:57,748 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:43:57,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:43:57,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:43:57,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:43:57,787 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:43:57,790 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:43:57,792 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:43:57,793 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:43:57,794 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:43:57,796 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:43:57,796 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:43:57,798 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:43:57,799 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:43:57,800 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:43:57,801 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:43:57,803 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:43:57,805 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:43:57,807 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:43:57,809 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:43:57,810 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:43:57,812 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:43:57,813 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:43:57,816 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:43:57,820 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 22:43:57,821 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 22:43:57,822 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 22:43:57,823 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 22:43:57,824 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 22:43:57,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 22:43:57,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 22:43:57,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 22:43:57,826 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:43:57,827 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:43:57,828 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:43:57,830 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-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:43:57,887 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:43:57,888 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:43:57,889 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:43:57,890 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:43:57,891 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:43:57,892 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:43:57,892 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:43:57,892 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:43:57,892 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:43:57,893 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:43:57,894 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:43:57,894 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:43:57,894 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:43:57,894 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:43:57,895 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:43:57,895 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:43:57,895 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:43:57,895 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:43:57,895 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:43:57,896 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:43:57,896 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:43:57,896 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:43:57,896 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:43:57,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:43:57,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:43:57,897 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:43:57,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:43:57,897 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:43:57,898 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:43:57,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:43:57,898 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:43:58,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:43:58,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:43:58,391 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:43:58,393 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:43:58,393 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:43:58,394 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i [2021-04-28 22:43:58,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b40d71e/db699fada9544f93903b9c8d36168f1e/FLAG3db78059c [2021-04-28 22:43:59,177 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:43:59,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i [2021-04-28 22:43:59,204 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b40d71e/db699fada9544f93903b9c8d36168f1e/FLAG3db78059c [2021-04-28 22:43:59,418 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/83b40d71e/db699fada9544f93903b9c8d36168f1e [2021-04-28 22:43:59,421 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:43:59,466 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:43:59,467 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:43:59,468 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:43:59,472 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:43:59,473 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:43:59" (1/1) ... [2021-04-28 22:43:59,474 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@397716c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:43:59, skipping insertion in model container [2021-04-28 22:43:59,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:43:59" (1/1) ... [2021-04-28 22:43:59,483 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:43:59,529 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:43:59,708 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i[949,962] [2021-04-28 22:44:00,066 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:44:00,081 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:44:00,096 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix057_tso.oepc.i[949,962] [2021-04-28 22:44:00,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:44:00,358 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:44:00,358 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00 WrapperNode [2021-04-28 22:44:00,358 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:44:00,360 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:44:00,360 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:44:00,360 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:44:00,368 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:44:00,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:44:00,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:44:00,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:44:00,437 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,438 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,444 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,458 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... [2021-04-28 22:44:00,473 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:44:00,474 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:44:00,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:44:00,475 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:44:00,476 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:44:00,597 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:44:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:44:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:44:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:44:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:44:00,598 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:44:00,598 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:44:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:44:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:44:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:44:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:44:00,599 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:44:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:44:00,599 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:44:00,600 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:44:00,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:44:00,602 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:44:02,784 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:44:02,785 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:44:02,788 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:44:02 BoogieIcfgContainer [2021-04-28 22:44:02,788 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:44:02,792 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:44:02,792 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:44:02,796 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:44:02,797 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:43:59" (1/3) ... [2021-04-28 22:44:02,798 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fca359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:44:02, skipping insertion in model container [2021-04-28 22:44:02,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:44:00" (2/3) ... [2021-04-28 22:44:02,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5fca359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:44:02, skipping insertion in model container [2021-04-28 22:44:02,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:44:02" (3/3) ... [2021-04-28 22:44:02,801 INFO L111 eAbstractionObserver]: Analyzing ICFG mix057_tso.oepc.i [2021-04-28 22:44:02,813 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:44:02,819 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:44:02,820 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:44:02,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,872 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,873 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,873 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,874 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,874 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,875 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,876 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,876 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,877 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,877 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,877 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,878 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,878 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,879 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,880 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,880 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,880 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,881 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,881 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,883 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,883 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,885 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,886 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,887 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,888 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,889 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,889 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,890 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,890 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,890 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,890 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,890 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,890 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,891 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,891 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,891 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,891 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,892 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,892 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,892 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,893 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,893 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,893 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,893 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,894 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,894 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,894 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,894 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,894 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,895 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,896 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,897 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,897 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,897 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,897 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,897 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,900 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,900 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,900 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,900 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,903 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,903 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,904 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,906 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,907 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,908 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,908 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,909 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,910 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,913 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,915 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,915 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,916 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,922 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,923 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,923 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,923 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,923 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,924 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,924 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,924 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,924 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,926 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,926 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,926 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,927 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:44:02,928 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:44:02,953 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:44:02,994 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:44:02,994 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:44:02,994 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:44:02,994 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:44:02,994 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:44:02,994 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:44:02,995 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:44:02,995 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:44:03,020 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:44:03,074 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:44:03,074 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:44:03,080 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 77 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:44:03,080 INFO L82 GeneralOperation]: Start removeDead. Operand has 123 places, 112 transitions, 244 flow [2021-04-28 22:44:03,087 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 119 places, 108 transitions, 228 flow [2021-04-28 22:44:03,089 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:44:03,106 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:44:03,110 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 119 places, 108 transitions, 228 flow [2021-04-28 22:44:03,113 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 119 places, 108 transitions, 228 flow [2021-04-28 22:44:03,142 INFO L129 PetriNetUnfolder]: 2/108 cut-off events. [2021-04-28 22:44:03,143 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:44:03,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121 conditions, 108 events. 2/108 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 86 event pairs, 0 based on Foata normal form. 0/104 useless extension candidates. Maximal degree in co-relation 74. Up to 2 conditions per place. [2021-04-28 22:44:03,151 INFO L146 LiptonReduction]: Number of co-enabled transitions 2406 [2021-04-28 22:44:04,708 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:44:05,167 WARN L205 SmtUtils]: Spent 454.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:44:07,138 WARN L205 SmtUtils]: Spent 1.97 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:44:08,010 WARN L205 SmtUtils]: Spent 864.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:44:10,863 WARN L205 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:44:11,003 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:44:11,539 WARN L205 SmtUtils]: Spent 534.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2021-04-28 22:44:11,733 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 22:44:14,667 WARN L205 SmtUtils]: Spent 908.00 ms on a formula simplification. DAG size of input: 188 DAG size of output: 187 [2021-04-28 22:44:15,143 WARN L205 SmtUtils]: Spent 474.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:44:16,045 WARN L205 SmtUtils]: Spent 897.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:44:16,980 WARN L205 SmtUtils]: Spent 932.00 ms on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:44:17,994 WARN L205 SmtUtils]: Spent 1.01 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:44:18,484 WARN L205 SmtUtils]: Spent 488.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:44:19,463 WARN L205 SmtUtils]: Spent 970.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:44:20,459 WARN L205 SmtUtils]: Spent 994.00 ms on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:44:21,497 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2021-04-28 22:44:22,032 WARN L205 SmtUtils]: Spent 532.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:44:23,014 WARN L205 SmtUtils]: Spent 980.00 ms on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:44:24,058 WARN L205 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 22:44:26,668 WARN L205 SmtUtils]: Spent 525.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:44:27,220 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:44:28,285 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:44:29,408 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:44:29,994 WARN L205 SmtUtils]: Spent 581.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:44:30,553 WARN L205 SmtUtils]: Spent 558.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:44:31,667 WARN L205 SmtUtils]: Spent 1.11 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:44:32,793 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:44:33,425 WARN L205 SmtUtils]: Spent 626.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:44:34,036 WARN L205 SmtUtils]: Spent 608.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:44:35,186 WARN L205 SmtUtils]: Spent 1.15 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:44:36,350 WARN L205 SmtUtils]: Spent 1.16 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:44:37,585 WARN L205 SmtUtils]: Spent 1.23 s on a formula simplification. DAG size of input: 189 DAG size of output: 188 [2021-04-28 22:44:38,190 WARN L205 SmtUtils]: Spent 601.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:44:39,403 WARN L205 SmtUtils]: Spent 1.21 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:44:40,656 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:44:47,169 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 186 DAG size of output: 185 [2021-04-28 22:44:47,790 WARN L205 SmtUtils]: Spent 618.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:44:49,105 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:44:50,425 WARN L205 SmtUtils]: Spent 1.32 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:44:51,096 WARN L205 SmtUtils]: Spent 666.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:44:51,781 WARN L205 SmtUtils]: Spent 683.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:44:53,090 WARN L205 SmtUtils]: Spent 1.31 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:44:54,456 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:44:55,166 WARN L205 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:44:55,875 WARN L205 SmtUtils]: Spent 707.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:44:58,602 WARN L205 SmtUtils]: Spent 2.73 s on a formula simplification. DAG size of input: 268 DAG size of output: 267 [2021-04-28 22:44:59,977 WARN L205 SmtUtils]: Spent 1.37 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:45:01,752 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:45:02,240 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:45:02,348 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:45:05,667 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:45:05,809 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:45:05,940 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:45:06,077 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 77 [2021-04-28 22:45:06,225 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:45:06,374 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:45:06,522 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:45:06,676 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:45:08,233 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:45:08,364 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:45:08,491 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:45:08,620 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:45:08,732 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:45:08,857 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:45:08,977 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:45:09,094 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:45:09,499 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:09,620 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:09,743 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:09,865 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:10,007 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:45:10,145 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:45:10,294 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:45:10,440 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:45:10,559 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:45:10,680 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:45:10,799 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:45:10,917 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:45:11,034 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:45:11,146 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:45:11,257 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:45:11,372 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:45:11,511 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:45:11,651 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:45:11,789 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:45:11,931 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:45:12,073 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:45:12,233 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:45:12,380 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:45:12,530 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:45:12,657 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:12,792 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:12,922 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:13,050 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:45:13,295 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:13,509 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:13,730 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:13,966 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:14,181 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:14,393 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:14,614 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:14,838 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:15,057 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:15,291 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:15,523 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:15,757 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:15,918 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:45:16,096 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:45:16,256 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:45:16,416 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:45:16,596 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:16,785 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:16,968 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:17,150 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:17,336 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:17,524 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:17,704 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:17,884 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:45:18,092 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:45:18,294 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:45:18,500 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:45:18,707 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:45:18,922 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:45:19,147 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:45:19,374 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:45:19,591 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:45:19,780 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:45:19,982 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:45:20,177 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:45:20,374 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:45:20,583 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:45:20,796 WARN L205 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:45:21,019 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:45:21,244 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:45:21,861 WARN L205 SmtUtils]: Spent 614.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:45:22,144 WARN L205 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:45:22,751 WARN L205 SmtUtils]: Spent 604.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 113 [2021-04-28 22:45:23,027 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 109 [2021-04-28 22:45:23,654 WARN L205 SmtUtils]: Spent 624.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:45:23,968 WARN L205 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:45:24,630 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 118 [2021-04-28 22:45:24,934 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 114 [2021-04-28 22:45:25,165 WARN L205 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:25,400 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:25,615 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:25,840 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:45:26,033 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:45:26,227 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:45:26,423 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:45:26,620 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:45:26,789 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:45:26,953 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:45:27,127 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:45:27,312 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:45:27,487 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:45:27,660 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:45:27,815 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:45:27,977 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:45:28,042 INFO L158 LiptonReduction]: Checked pairs total: 22454 [2021-04-28 22:45:28,042 INFO L160 LiptonReduction]: Total number of compositions: 247 [2021-04-28 22:45:28,047 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 84960 [2021-04-28 22:45:28,090 INFO L129 PetriNetUnfolder]: 1/92 cut-off events. [2021-04-28 22:45:28,090 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:45:28,090 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:28,091 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:28,091 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:28,097 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:28,097 INFO L82 PathProgramCache]: Analyzing trace with hash 50815099, now seen corresponding path program 1 times [2021-04-28 22:45:28,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:28,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708344984] [2021-04-28 22:45:28,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:28,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:28,432 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:28,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:28,443 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:28,443 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708344984] [2021-04-28 22:45:28,444 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:28,444 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:45:28,445 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296969480] [2021-04-28 22:45:28,455 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:45:28,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:28,469 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:45:28,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:45:28,475 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 285 out of 359 [2021-04-28 22:45:28,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 135 transitions, 282 flow. Second operand has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:28,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:28,482 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 285 of 359 [2021-04-28 22:45:28,483 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:28,879 INFO L129 PetriNetUnfolder]: 107/453 cut-off events. [2021-04-28 22:45:28,879 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:45:28,882 INFO L84 FinitePrefix]: Finished finitePrefix Result has 679 conditions, 453 events. 107/453 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 3341 event pairs, 15 based on Foata normal form. 6/217 useless extension candidates. Maximal degree in co-relation 606. Up to 157 conditions per place. [2021-04-28 22:45:28,884 INFO L132 encePairwiseOnDemand]: 343/359 looper letters, 7 selfloop transitions, 2 changer transitions 97/146 dead transitions. [2021-04-28 22:45:28,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 145 places, 146 transitions, 392 flow [2021-04-28 22:45:28,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:45:28,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:45:28,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 904 transitions. [2021-04-28 22:45:28,907 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8393686165273909 [2021-04-28 22:45:28,908 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 904 transitions. [2021-04-28 22:45:28,909 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 904 transitions. [2021-04-28 22:45:28,912 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:28,915 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 904 transitions. [2021-04-28 22:45:28,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 301.3333333333333) internal successors, (904), 3 states have internal predecessors, (904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:28,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:28,934 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:28,937 INFO L185 Difference]: Start difference. First operand has 146 places, 135 transitions, 282 flow. Second operand 3 states and 904 transitions. [2021-04-28 22:45:28,938 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 145 places, 146 transitions, 392 flow [2021-04-28 22:45:28,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 146 transitions, 388 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:45:28,945 INFO L241 Difference]: Finished difference. Result has 141 places, 46 transitions, 104 flow [2021-04-28 22:45:28,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=139, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=130, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=128, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=141, PETRI_TRANSITIONS=46} [2021-04-28 22:45:28,949 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -5 predicate places. [2021-04-28 22:45:28,949 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:28,949 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:45:28,949 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 141 places, 46 transitions, 104 flow [2021-04-28 22:45:28,950 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 57 places, 46 transitions, 104 flow [2021-04-28 22:45:28,957 INFO L129 PetriNetUnfolder]: 0/46 cut-off events. [2021-04-28 22:45:28,957 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:45:28,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 58 conditions, 46 events. 0/46 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 139 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:45:28,958 INFO L146 LiptonReduction]: Number of co-enabled transitions 1278 [2021-04-28 22:45:29,050 INFO L158 LiptonReduction]: Checked pairs total: 1274 [2021-04-28 22:45:29,050 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:29,051 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 102 [2021-04-28 22:45:29,053 INFO L480 AbstractCegarLoop]: Abstraction has has 57 places, 46 transitions, 104 flow [2021-04-28 22:45:29,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 285.6666666666667) internal successors, (857), 3 states have internal predecessors, (857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,054 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:29,054 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:29,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:45:29,055 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:29,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:29,055 INFO L82 PathProgramCache]: Analyzing trace with hash 1588779353, now seen corresponding path program 1 times [2021-04-28 22:45:29,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:29,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836398553] [2021-04-28 22:45:29,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:29,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:29,251 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:29,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:29,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:29,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836398553] [2021-04-28 22:45:29,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:29,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:45:29,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461638483] [2021-04-28 22:45:29,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:45:29,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:29,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:45:29,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:45:29,264 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 359 [2021-04-28 22:45:29,265 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 46 transitions, 104 flow. Second operand has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,265 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:29,266 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 359 [2021-04-28 22:45:29,266 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:29,288 INFO L129 PetriNetUnfolder]: 3/60 cut-off events. [2021-04-28 22:45:29,288 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:45:29,289 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 60 events. 3/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 207 event pairs, 1 based on Foata normal form. 1/36 useless extension candidates. Maximal degree in co-relation 74. Up to 10 conditions per place. [2021-04-28 22:45:29,290 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2021-04-28 22:45:29,290 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 59 places, 48 transitions, 120 flow [2021-04-28 22:45:29,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:45:29,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:45:29,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 745 transitions. [2021-04-28 22:45:29,295 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.691736304549675 [2021-04-28 22:45:29,295 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 745 transitions. [2021-04-28 22:45:29,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 745 transitions. [2021-04-28 22:45:29,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:29,296 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 745 transitions. [2021-04-28 22:45:29,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,302 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,303 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,303 INFO L185 Difference]: Start difference. First operand has 57 places, 46 transitions, 104 flow. Second operand 3 states and 745 transitions. [2021-04-28 22:45:29,303 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 59 places, 48 transitions, 120 flow [2021-04-28 22:45:29,304 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 48 transitions, 116 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:45:29,305 INFO L241 Difference]: Finished difference. Result has 58 places, 48 transitions, 119 flow [2021-04-28 22:45:29,306 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=119, PETRI_PLACES=58, PETRI_TRANSITIONS=48} [2021-04-28 22:45:29,306 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -88 predicate places. [2021-04-28 22:45:29,307 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:29,307 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:45:29,307 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 58 places, 48 transitions, 119 flow [2021-04-28 22:45:29,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 58 places, 48 transitions, 119 flow [2021-04-28 22:45:29,317 INFO L129 PetriNetUnfolder]: 3/58 cut-off events. [2021-04-28 22:45:29,317 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:45:29,318 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 58 events. 3/58 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 199 event pairs, 1 based on Foata normal form. 0/32 useless extension candidates. Maximal degree in co-relation 73. Up to 10 conditions per place. [2021-04-28 22:45:29,319 INFO L146 LiptonReduction]: Number of co-enabled transitions 1388 [2021-04-28 22:45:29,705 INFO L158 LiptonReduction]: Checked pairs total: 1056 [2021-04-28 22:45:29,705 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:29,705 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 398 [2021-04-28 22:45:29,707 INFO L480 AbstractCegarLoop]: Abstraction has has 58 places, 48 transitions, 119 flow [2021-04-28 22:45:29,708 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,708 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:29,709 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:29,709 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:45:29,709 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:29,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:29,709 INFO L82 PathProgramCache]: Analyzing trace with hash -1370520947, now seen corresponding path program 1 times [2021-04-28 22:45:29,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:29,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016723145] [2021-04-28 22:45:29,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:29,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:29,786 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:29,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:29,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:29,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016723145] [2021-04-28 22:45:29,792 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:29,792 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:45:29,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1540552613] [2021-04-28 22:45:29,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:45:29,793 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:29,793 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:45:29,793 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:45:29,795 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:45:29,797 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 48 transitions, 119 flow. Second operand has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,797 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:29,797 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:45:29,797 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:29,828 INFO L129 PetriNetUnfolder]: 10/89 cut-off events. [2021-04-28 22:45:29,828 INFO L130 PetriNetUnfolder]: For 10/16 co-relation queries the response was YES. [2021-04-28 22:45:29,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 137 conditions, 89 events. 10/89 cut-off events. For 10/16 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 360 event pairs, 3 based on Foata normal form. 1/55 useless extension candidates. Maximal degree in co-relation 127. Up to 19 conditions per place. [2021-04-28 22:45:29,830 INFO L132 encePairwiseOnDemand]: 355/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:45:29,830 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:45:29,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:45:29,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:45:29,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 754 transitions. [2021-04-28 22:45:29,839 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7000928505106778 [2021-04-28 22:45:29,840 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 754 transitions. [2021-04-28 22:45:29,840 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 754 transitions. [2021-04-28 22:45:29,840 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:29,840 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 754 transitions. [2021-04-28 22:45:29,843 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.33333333333334) internal successors, (754), 3 states have internal predecessors, (754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,847 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:29,847 INFO L185 Difference]: Start difference. First operand has 58 places, 48 transitions, 119 flow. Second operand 3 states and 754 transitions. [2021-04-28 22:45:29,847 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:45:29,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 59 places, 50 transitions, 132 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:45:29,850 INFO L241 Difference]: Finished difference. Result has 60 places, 50 transitions, 135 flow [2021-04-28 22:45:29,850 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=48, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=135, PETRI_PLACES=60, PETRI_TRANSITIONS=50} [2021-04-28 22:45:29,850 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -86 predicate places. [2021-04-28 22:45:29,850 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:29,850 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:45:29,851 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 60 places, 50 transitions, 135 flow [2021-04-28 22:45:29,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 135 flow [2021-04-28 22:45:29,863 INFO L129 PetriNetUnfolder]: 7/76 cut-off events. [2021-04-28 22:45:29,864 INFO L130 PetriNetUnfolder]: For 7/9 co-relation queries the response was YES. [2021-04-28 22:45:29,864 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119 conditions, 76 events. 7/76 cut-off events. For 7/9 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 318 event pairs, 3 based on Foata normal form. 0/41 useless extension candidates. Maximal degree in co-relation 109. Up to 15 conditions per place. [2021-04-28 22:45:29,867 INFO L146 LiptonReduction]: Number of co-enabled transitions 1486 [2021-04-28 22:45:30,021 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:45:30,021 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:30,022 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 172 [2021-04-28 22:45:30,023 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 135 flow [2021-04-28 22:45:30,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 249.66666666666666) internal successors, (749), 3 states have internal predecessors, (749), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,024 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:30,024 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:30,025 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:45:30,025 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:30,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:30,025 INFO L82 PathProgramCache]: Analyzing trace with hash 463518869, now seen corresponding path program 1 times [2021-04-28 22:45:30,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:30,026 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663524400] [2021-04-28 22:45:30,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:30,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:30,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:30,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:45:30,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:30,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:30,091 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:30,092 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663524400] [2021-04-28 22:45:30,092 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:30,092 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:45:30,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142218232] [2021-04-28 22:45:30,093 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:45:30,093 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:30,093 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:45:30,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:45:30,095 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 249 out of 359 [2021-04-28 22:45:30,097 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 135 flow. Second operand has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,097 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:30,097 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 249 of 359 [2021-04-28 22:45:30,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:30,133 INFO L129 PetriNetUnfolder]: 4/87 cut-off events. [2021-04-28 22:45:30,134 INFO L130 PetriNetUnfolder]: For 26/61 co-relation queries the response was YES. [2021-04-28 22:45:30,134 INFO L84 FinitePrefix]: Finished finitePrefix Result has 146 conditions, 87 events. 4/87 cut-off events. For 26/61 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 413 event pairs, 1 based on Foata normal form. 4/54 useless extension candidates. Maximal degree in co-relation 134. Up to 15 conditions per place. [2021-04-28 22:45:30,135 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/50 dead transitions. [2021-04-28 22:45:30,135 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 147 flow [2021-04-28 22:45:30,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:45:30,138 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:45:30,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 753 transitions. [2021-04-28 22:45:30,140 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6991643454038997 [2021-04-28 22:45:30,140 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 753 transitions. [2021-04-28 22:45:30,141 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 753 transitions. [2021-04-28 22:45:30,141 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:30,141 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 753 transitions. [2021-04-28 22:45:30,144 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 251.0) internal successors, (753), 3 states have internal predecessors, (753), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,147 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,148 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,149 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 135 flow. Second operand 3 states and 753 transitions. [2021-04-28 22:45:30,149 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 147 flow [2021-04-28 22:45:30,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 144 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:45:30,152 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 143 flow [2021-04-28 22:45:30,152 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=143, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 22:45:30,152 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -84 predicate places. [2021-04-28 22:45:30,152 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:30,152 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:45:30,153 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 143 flow [2021-04-28 22:45:30,153 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 62 places, 50 transitions, 143 flow [2021-04-28 22:45:30,166 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 22:45:30,166 INFO L130 PetriNetUnfolder]: For 20/27 co-relation queries the response was YES. [2021-04-28 22:45:30,167 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 78 events. 4/78 cut-off events. For 20/27 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 334 event pairs, 2 based on Foata normal form. 0/43 useless extension candidates. Maximal degree in co-relation 114. Up to 13 conditions per place. [2021-04-28 22:45:30,169 INFO L146 LiptonReduction]: Number of co-enabled transitions 1484 [2021-04-28 22:45:30,360 INFO L158 LiptonReduction]: Checked pairs total: 800 [2021-04-28 22:45:30,360 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:30,360 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 208 [2021-04-28 22:45:30,362 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 143 flow [2021-04-28 22:45:30,363 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 250.0) internal successors, (750), 3 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,363 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:30,363 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:30,363 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:45:30,363 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:30,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:30,364 INFO L82 PathProgramCache]: Analyzing trace with hash 463520822, now seen corresponding path program 1 times [2021-04-28 22:45:30,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:30,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607851377] [2021-04-28 22:45:30,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:30,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:30,520 INFO L142 QuantifierPusher]: treesize reduction 18, result has 43.8 percent of original size [2021-04-28 22:45:30,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:45:30,541 INFO L142 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size [2021-04-28 22:45:30,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:45:30,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:30,543 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607851377] [2021-04-28 22:45:30,544 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:30,544 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:45:30,544 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840958198] [2021-04-28 22:45:30,544 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:45:30,545 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:30,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:45:30,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:45:30,547 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 227 out of 359 [2021-04-28 22:45:30,548 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 143 flow. Second operand has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,548 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:30,549 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 227 of 359 [2021-04-28 22:45:30,549 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:30,663 INFO L129 PetriNetUnfolder]: 91/332 cut-off events. [2021-04-28 22:45:30,663 INFO L130 PetriNetUnfolder]: For 242/310 co-relation queries the response was YES. [2021-04-28 22:45:30,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 643 conditions, 332 events. 91/332 cut-off events. For 242/310 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 2103 event pairs, 24 based on Foata normal form. 9/230 useless extension candidates. Maximal degree in co-relation 630. Up to 125 conditions per place. [2021-04-28 22:45:30,669 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 8 selfloop transitions, 2 changer transitions 0/53 dead transitions. [2021-04-28 22:45:30,669 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 53 transitions, 169 flow [2021-04-28 22:45:30,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:45:30,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:45:30,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 692 transitions. [2021-04-28 22:45:30,673 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6425255338904364 [2021-04-28 22:45:30,674 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 692 transitions. [2021-04-28 22:45:30,674 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 692 transitions. [2021-04-28 22:45:30,674 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:30,674 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 692 transitions. [2021-04-28 22:45:30,677 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 230.66666666666666) internal successors, (692), 3 states have internal predecessors, (692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,681 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,681 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 143 flow. Second operand 3 states and 692 transitions. [2021-04-28 22:45:30,681 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 53 transitions, 169 flow [2021-04-28 22:45:30,683 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 53 transitions, 164 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:45:30,684 INFO L241 Difference]: Finished difference. Result has 64 places, 50 transitions, 146 flow [2021-04-28 22:45:30,684 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=138, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=146, PETRI_PLACES=64, PETRI_TRANSITIONS=50} [2021-04-28 22:45:30,685 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -82 predicate places. [2021-04-28 22:45:30,685 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:30,685 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 50 transitions, 146 flow [2021-04-28 22:45:30,685 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 50 transitions, 146 flow [2021-04-28 22:45:30,686 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 50 transitions, 146 flow [2021-04-28 22:45:30,697 INFO L129 PetriNetUnfolder]: 4/78 cut-off events. [2021-04-28 22:45:30,698 INFO L130 PetriNetUnfolder]: For 23/28 co-relation queries the response was YES. [2021-04-28 22:45:30,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 132 conditions, 78 events. 4/78 cut-off events. For 23/28 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 335 event pairs, 2 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 119. Up to 13 conditions per place. [2021-04-28 22:45:30,701 INFO L146 LiptonReduction]: Number of co-enabled transitions 1480 [2021-04-28 22:45:30,809 INFO L158 LiptonReduction]: Checked pairs total: 730 [2021-04-28 22:45:30,810 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:30,810 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-04-28 22:45:30,811 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 50 transitions, 146 flow [2021-04-28 22:45:30,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 228.0) internal successors, (684), 3 states have internal predecessors, (684), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,812 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:30,812 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:30,813 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:45:30,813 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:30,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:30,813 INFO L82 PathProgramCache]: Analyzing trace with hash 1484232164, now seen corresponding path program 1 times [2021-04-28 22:45:30,813 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:30,814 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2095591653] [2021-04-28 22:45:30,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:30,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:30,888 INFO L142 QuantifierPusher]: treesize reduction 10, result has 58.3 percent of original size [2021-04-28 22:45:30,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:45:30,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:30,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:45:30,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:30,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:45:30,938 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:30,938 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2095591653] [2021-04-28 22:45:30,938 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:30,938 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:45:30,939 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322342386] [2021-04-28 22:45:30,939 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:45:30,939 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:30,940 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:45:30,940 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:45:30,942 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 222 out of 359 [2021-04-28 22:45:30,944 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 50 transitions, 146 flow. Second operand has 5 states, 5 states have (on average 222.8) internal successors, (1114), 5 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:30,945 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:30,945 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 222 of 359 [2021-04-28 22:45:30,945 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:31,122 INFO L129 PetriNetUnfolder]: 72/311 cut-off events. [2021-04-28 22:45:31,122 INFO L130 PetriNetUnfolder]: For 247/292 co-relation queries the response was YES. [2021-04-28 22:45:31,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 607 conditions, 311 events. 72/311 cut-off events. For 247/292 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 2050 event pairs, 10 based on Foata normal form. 9/211 useless extension candidates. Maximal degree in co-relation 592. Up to 81 conditions per place. [2021-04-28 22:45:31,127 INFO L132 encePairwiseOnDemand]: 354/359 looper letters, 10 selfloop transitions, 4 changer transitions 0/57 dead transitions. [2021-04-28 22:45:31,127 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 57 transitions, 188 flow [2021-04-28 22:45:31,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:45:31,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:45:31,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 903 transitions. [2021-04-28 22:45:31,132 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6288300835654597 [2021-04-28 22:45:31,132 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 903 transitions. [2021-04-28 22:45:31,133 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 903 transitions. [2021-04-28 22:45:31,133 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:31,133 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 903 transitions. [2021-04-28 22:45:31,136 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 225.75) internal successors, (903), 4 states have internal predecessors, (903), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,140 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,141 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,142 INFO L185 Difference]: Start difference. First operand has 64 places, 50 transitions, 146 flow. Second operand 4 states and 903 transitions. [2021-04-28 22:45:31,142 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 57 transitions, 188 flow [2021-04-28 22:45:31,143 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 57 transitions, 184 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:45:31,145 INFO L241 Difference]: Finished difference. Result has 66 places, 52 transitions, 163 flow [2021-04-28 22:45:31,145 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=163, PETRI_PLACES=66, PETRI_TRANSITIONS=52} [2021-04-28 22:45:31,145 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -80 predicate places. [2021-04-28 22:45:31,146 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:31,146 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:45:31,146 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 66 places, 52 transitions, 163 flow [2021-04-28 22:45:31,147 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 66 places, 52 transitions, 163 flow [2021-04-28 22:45:31,171 INFO L129 PetriNetUnfolder]: 17/144 cut-off events. [2021-04-28 22:45:31,171 INFO L130 PetriNetUnfolder]: For 107/118 co-relation queries the response was YES. [2021-04-28 22:45:31,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 144 events. 17/144 cut-off events. For 107/118 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 787 event pairs, 7 based on Foata normal form. 1/82 useless extension candidates. Maximal degree in co-relation 273. Up to 33 conditions per place. [2021-04-28 22:45:31,176 INFO L146 LiptonReduction]: Number of co-enabled transitions 1578 [2021-04-28 22:45:31,271 INFO L158 LiptonReduction]: Checked pairs total: 320 [2021-04-28 22:45:31,271 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:31,271 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 125 [2021-04-28 22:45:31,272 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 52 transitions, 163 flow [2021-04-28 22:45:31,273 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 222.8) internal successors, (1114), 5 states have internal predecessors, (1114), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,273 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:31,274 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:31,274 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:45:31,274 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:31,274 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:31,274 INFO L82 PathProgramCache]: Analyzing trace with hash 1119152133, now seen corresponding path program 1 times [2021-04-28 22:45:31,275 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:31,275 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1531299138] [2021-04-28 22:45:31,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:31,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:31,362 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:31,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:45:31,375 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:31,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:45:31,379 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:31,381 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 21 [2021-04-28 22:45:31,419 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.6 percent of original size [2021-04-28 22:45:31,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-04-28 22:45:31,468 INFO L142 QuantifierPusher]: treesize reduction 10, result has 84.1 percent of original size [2021-04-28 22:45:31,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-04-28 22:45:31,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:31,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1531299138] [2021-04-28 22:45:31,511 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:31,511 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:45:31,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132308091] [2021-04-28 22:45:31,512 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:45:31,512 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:31,513 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:45:31,513 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:45:31,516 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 216 out of 359 [2021-04-28 22:45:31,518 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 52 transitions, 163 flow. Second operand has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,518 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:31,545 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 216 of 359 [2021-04-28 22:45:31,545 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:31,757 INFO L129 PetriNetUnfolder]: 87/362 cut-off events. [2021-04-28 22:45:31,757 INFO L130 PetriNetUnfolder]: For 263/290 co-relation queries the response was YES. [2021-04-28 22:45:31,760 INFO L84 FinitePrefix]: Finished finitePrefix Result has 814 conditions, 362 events. 87/362 cut-off events. For 263/290 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2507 event pairs, 10 based on Foata normal form. 5/247 useless extension candidates. Maximal degree in co-relation 798. Up to 117 conditions per place. [2021-04-28 22:45:31,763 INFO L132 encePairwiseOnDemand]: 352/359 looper letters, 11 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2021-04-28 22:45:31,763 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 70 places, 62 transitions, 237 flow [2021-04-28 22:45:31,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:45:31,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:45:31,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1097 transitions. [2021-04-28 22:45:31,769 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6111420612813371 [2021-04-28 22:45:31,769 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1097 transitions. [2021-04-28 22:45:31,769 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1097 transitions. [2021-04-28 22:45:31,770 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:31,770 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1097 transitions. [2021-04-28 22:45:31,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 219.4) internal successors, (1097), 5 states have internal predecessors, (1097), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,777 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,778 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,778 INFO L185 Difference]: Start difference. First operand has 66 places, 52 transitions, 163 flow. Second operand 5 states and 1097 transitions. [2021-04-28 22:45:31,778 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 70 places, 62 transitions, 237 flow [2021-04-28 22:45:31,780 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 62 transitions, 229 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:45:31,782 INFO L241 Difference]: Finished difference. Result has 71 places, 58 transitions, 219 flow [2021-04-28 22:45:31,782 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=219, PETRI_PLACES=71, PETRI_TRANSITIONS=58} [2021-04-28 22:45:31,782 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -75 predicate places. [2021-04-28 22:45:31,782 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:31,782 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 71 places, 58 transitions, 219 flow [2021-04-28 22:45:31,783 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 71 places, 58 transitions, 219 flow [2021-04-28 22:45:31,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 58 transitions, 219 flow [2021-04-28 22:45:31,833 INFO L129 PetriNetUnfolder]: 53/270 cut-off events. [2021-04-28 22:45:31,833 INFO L130 PetriNetUnfolder]: For 253/265 co-relation queries the response was YES. [2021-04-28 22:45:31,835 INFO L84 FinitePrefix]: Finished finitePrefix Result has 640 conditions, 270 events. 53/270 cut-off events. For 253/265 co-relation queries the response was YES. Maximal size of possible extension queue 36. Compared 1733 event pairs, 17 based on Foata normal form. 1/166 useless extension candidates. Maximal degree in co-relation 623. Up to 76 conditions per place. [2021-04-28 22:45:31,843 INFO L146 LiptonReduction]: Number of co-enabled transitions 1856 [2021-04-28 22:45:31,848 INFO L158 LiptonReduction]: Checked pairs total: 310 [2021-04-28 22:45:31,848 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:31,848 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-04-28 22:45:31,850 INFO L480 AbstractCegarLoop]: Abstraction has has 71 places, 58 transitions, 219 flow [2021-04-28 22:45:31,851 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 217.0) internal successors, (1302), 6 states have internal predecessors, (1302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:31,851 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:31,851 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:31,851 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:45:31,851 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:31,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:31,852 INFO L82 PathProgramCache]: Analyzing trace with hash -75783987, now seen corresponding path program 2 times [2021-04-28 22:45:31,852 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:31,852 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052561620] [2021-04-28 22:45:31,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:31,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:31,948 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:31,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:45:31,967 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:31,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 22:45:31,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:31,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-04-28 22:45:32,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:32,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 22:45:32,050 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:32,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:45:32,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:32,078 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052561620] [2021-04-28 22:45:32,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:32,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:45:32,079 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523092834] [2021-04-28 22:45:32,079 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:45:32,079 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:32,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:45:32,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:45:32,083 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 213 out of 359 [2021-04-28 22:45:32,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 58 transitions, 219 flow. Second operand has 7 states, 7 states have (on average 213.85714285714286) internal successors, (1497), 7 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:32,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:32,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 213 of 359 [2021-04-28 22:45:32,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:32,380 INFO L129 PetriNetUnfolder]: 80/345 cut-off events. [2021-04-28 22:45:32,381 INFO L130 PetriNetUnfolder]: For 353/386 co-relation queries the response was YES. [2021-04-28 22:45:32,384 INFO L84 FinitePrefix]: Finished finitePrefix Result has 917 conditions, 345 events. 80/345 cut-off events. For 353/386 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 2385 event pairs, 3 based on Foata normal form. 9/240 useless extension candidates. Maximal degree in co-relation 898. Up to 79 conditions per place. [2021-04-28 22:45:32,387 INFO L132 encePairwiseOnDemand]: 353/359 looper letters, 10 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2021-04-28 22:45:32,387 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 75 places, 64 transitions, 291 flow [2021-04-28 22:45:32,389 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:45:32,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:45:32,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1082 transitions. [2021-04-28 22:45:32,392 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6027855153203343 [2021-04-28 22:45:32,393 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1082 transitions. [2021-04-28 22:45:32,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1082 transitions. [2021-04-28 22:45:32,394 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:32,394 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1082 transitions. [2021-04-28 22:45:32,396 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 216.4) internal successors, (1082), 5 states have internal predecessors, (1082), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:32,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:32,401 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:32,401 INFO L185 Difference]: Start difference. First operand has 71 places, 58 transitions, 219 flow. Second operand 5 states and 1082 transitions. [2021-04-28 22:45:32,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 75 places, 64 transitions, 291 flow [2021-04-28 22:45:32,404 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 74 places, 64 transitions, 284 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:45:32,405 INFO L241 Difference]: Finished difference. Result has 76 places, 60 transitions, 262 flow [2021-04-28 22:45:32,406 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=262, PETRI_PLACES=76, PETRI_TRANSITIONS=60} [2021-04-28 22:45:32,406 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -70 predicate places. [2021-04-28 22:45:32,406 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:32,406 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 60 transitions, 262 flow [2021-04-28 22:45:32,407 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 76 places, 60 transitions, 262 flow [2021-04-28 22:45:32,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 76 places, 60 transitions, 262 flow [2021-04-28 22:45:32,451 INFO L129 PetriNetUnfolder]: 44/254 cut-off events. [2021-04-28 22:45:32,452 INFO L130 PetriNetUnfolder]: For 316/329 co-relation queries the response was YES. [2021-04-28 22:45:32,454 INFO L84 FinitePrefix]: Finished finitePrefix Result has 638 conditions, 254 events. 44/254 cut-off events. For 316/329 co-relation queries the response was YES. Maximal size of possible extension queue 33. Compared 1604 event pairs, 13 based on Foata normal form. 2/160 useless extension candidates. Maximal degree in co-relation 618. Up to 59 conditions per place. [2021-04-28 22:45:32,462 INFO L146 LiptonReduction]: Number of co-enabled transitions 1944 [2021-04-28 22:45:32,468 INFO L158 LiptonReduction]: Checked pairs total: 350 [2021-04-28 22:45:32,468 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:32,468 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 62 [2021-04-28 22:45:32,470 INFO L480 AbstractCegarLoop]: Abstraction has has 76 places, 60 transitions, 262 flow [2021-04-28 22:45:32,471 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 213.85714285714286) internal successors, (1497), 7 states have internal predecessors, (1497), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:32,471 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:32,471 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:32,471 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:45:32,471 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:32,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:32,472 INFO L82 PathProgramCache]: Analyzing trace with hash 867729919, now seen corresponding path program 1 times [2021-04-28 22:45:32,472 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:32,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [19206372] [2021-04-28 22:45:32,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:32,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:32,598 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:32,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:32,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:32,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:45:32,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:32,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:45:32,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:32,621 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [19206372] [2021-04-28 22:45:32,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:32,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:45:32,622 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106800381] [2021-04-28 22:45:32,622 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:45:32,622 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:32,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:45:32,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:45:32,625 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:45:32,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 76 places, 60 transitions, 262 flow. Second operand has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:32,627 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:32,627 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:45:32,627 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:40,230 INFO L129 PetriNetUnfolder]: 38425/56442 cut-off events. [2021-04-28 22:45:40,230 INFO L130 PetriNetUnfolder]: For 13933/18922 co-relation queries the response was YES. [2021-04-28 22:45:40,541 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119690 conditions, 56442 events. 38425/56442 cut-off events. For 13933/18922 co-relation queries the response was YES. Maximal size of possible extension queue 9606. Compared 510948 event pairs, 19380 based on Foata normal form. 1290/17127 useless extension candidates. Maximal degree in co-relation 119668. Up to 36235 conditions per place. [2021-04-28 22:45:40,778 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 35 selfloop transitions, 32 changer transitions 0/103 dead transitions. [2021-04-28 22:45:40,778 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 103 transitions, 482 flow [2021-04-28 22:45:40,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:45:40,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:45:40,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1401 transitions. [2021-04-28 22:45:40,784 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7805013927576602 [2021-04-28 22:45:40,785 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1401 transitions. [2021-04-28 22:45:40,785 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1401 transitions. [2021-04-28 22:45:40,786 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:40,786 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1401 transitions. [2021-04-28 22:45:40,790 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 280.2) internal successors, (1401), 5 states have internal predecessors, (1401), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:40,794 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:40,796 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 359.0) internal successors, (2154), 6 states have internal predecessors, (2154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:40,796 INFO L185 Difference]: Start difference. First operand has 76 places, 60 transitions, 262 flow. Second operand 5 states and 1401 transitions. [2021-04-28 22:45:40,796 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 103 transitions, 482 flow [2021-04-28 22:45:40,841 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 78 places, 103 transitions, 468 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-04-28 22:45:40,843 INFO L241 Difference]: Finished difference. Result has 81 places, 90 transitions, 494 flow [2021-04-28 22:45:40,844 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=494, PETRI_PLACES=81, PETRI_TRANSITIONS=90} [2021-04-28 22:45:40,844 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -65 predicate places. [2021-04-28 22:45:40,844 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:40,844 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 90 transitions, 494 flow [2021-04-28 22:45:40,844 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 90 transitions, 494 flow [2021-04-28 22:45:40,845 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 90 transitions, 494 flow [2021-04-28 22:45:45,936 INFO L129 PetriNetUnfolder]: 32844/47947 cut-off events. [2021-04-28 22:45:45,936 INFO L130 PetriNetUnfolder]: For 20057/87914 co-relation queries the response was YES. [2021-04-28 22:45:46,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 142052 conditions, 47947 events. 32844/47947 cut-off events. For 20057/87914 co-relation queries the response was YES. Maximal size of possible extension queue 8107. Compared 422908 event pairs, 17769 based on Foata normal form. 5/13741 useless extension candidates. Maximal degree in co-relation 142028. Up to 45139 conditions per place. [2021-04-28 22:45:46,613 INFO L146 LiptonReduction]: Number of co-enabled transitions 2894 [2021-04-28 22:45:46,657 INFO L158 LiptonReduction]: Checked pairs total: 380 [2021-04-28 22:45:46,657 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:45:46,657 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5813 [2021-04-28 22:45:46,659 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 90 transitions, 494 flow [2021-04-28 22:45:46,659 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 267.75) internal successors, (1071), 4 states have internal predecessors, (1071), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:46,660 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:45:46,660 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:45:46,660 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:45:46,660 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:45:46,660 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:45:46,660 INFO L82 PathProgramCache]: Analyzing trace with hash 392094291, now seen corresponding path program 1 times [2021-04-28 22:45:46,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:45:46,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54647725] [2021-04-28 22:45:46,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:45:46,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:45:46,727 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:46,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:46,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:46,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:45:46,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:46,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:45:46,761 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:45:46,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:45:46,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:45:46,762 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54647725] [2021-04-28 22:45:46,762 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:45:46,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:45:46,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032387742] [2021-04-28 22:45:46,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:45:46,763 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:45:46,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:45:46,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:45:46,766 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:45:46,768 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 90 transitions, 494 flow. Second operand has 5 states, 5 states have (on average 267.8) internal successors, (1339), 5 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:46,768 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:45:46,768 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:45:46,768 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:45:54,257 INFO L129 PetriNetUnfolder]: 41656/64044 cut-off events. [2021-04-28 22:45:54,257 INFO L130 PetriNetUnfolder]: For 38283/523042 co-relation queries the response was YES. [2021-04-28 22:45:54,602 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249010 conditions, 64044 events. 41656/64044 cut-off events. For 38283/523042 co-relation queries the response was YES. Maximal size of possible extension queue 11742. Compared 613852 event pairs, 7272 based on Foata normal form. 1458/21509 useless extension candidates. Maximal degree in co-relation 248984. Up to 58813 conditions per place. [2021-04-28 22:45:55,101 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 36 selfloop transitions, 62 changer transitions 0/134 dead transitions. [2021-04-28 22:45:55,102 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 134 transitions, 935 flow [2021-04-28 22:45:55,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:45:55,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:45:55,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1965 transitions. [2021-04-28 22:45:55,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.781933943493832 [2021-04-28 22:45:55,119 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1965 transitions. [2021-04-28 22:45:55,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1965 transitions. [2021-04-28 22:45:55,123 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:45:55,124 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1965 transitions. [2021-04-28 22:45:55,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 280.7142857142857) internal successors, (1965), 7 states have internal predecessors, (1965), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:55,139 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:55,140 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 359.0) internal successors, (2872), 8 states have internal predecessors, (2872), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:45:55,140 INFO L185 Difference]: Start difference. First operand has 81 places, 90 transitions, 494 flow. Second operand 7 states and 1965 transitions. [2021-04-28 22:45:55,140 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 134 transitions, 935 flow [2021-04-28 22:45:55,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 87 places, 134 transitions, 935 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:45:55,264 INFO L241 Difference]: Finished difference. Result has 90 places, 120 transitions, 932 flow [2021-04-28 22:45:55,265 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=494, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=32, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=932, PETRI_PLACES=90, PETRI_TRANSITIONS=120} [2021-04-28 22:45:55,265 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -56 predicate places. [2021-04-28 22:45:55,265 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:45:55,265 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 120 transitions, 932 flow [2021-04-28 22:45:55,266 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 120 transitions, 932 flow [2021-04-28 22:45:55,267 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 120 transitions, 932 flow [2021-04-28 22:46:01,472 INFO L129 PetriNetUnfolder]: 36474/55957 cut-off events. [2021-04-28 22:46:01,472 INFO L130 PetriNetUnfolder]: For 73227/293346 co-relation queries the response was YES. [2021-04-28 22:46:01,791 INFO L84 FinitePrefix]: Finished finitePrefix Result has 268725 conditions, 55957 events. 36474/55957 cut-off events. For 73227/293346 co-relation queries the response was YES. Maximal size of possible extension queue 10314. Compared 533745 event pairs, 7593 based on Foata normal form. 12/16863 useless extension candidates. Maximal degree in co-relation 268696. Up to 52519 conditions per place. [2021-04-28 22:46:02,601 INFO L146 LiptonReduction]: Number of co-enabled transitions 4006 [2021-04-28 22:46:02,670 INFO L158 LiptonReduction]: Checked pairs total: 522 [2021-04-28 22:46:02,670 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:46:02,671 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 7406 [2021-04-28 22:46:02,672 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 120 transitions, 932 flow [2021-04-28 22:46:02,673 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 267.8) internal successors, (1339), 5 states have internal predecessors, (1339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:02,673 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:46:02,673 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:46:02,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:46:02,673 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:46:02,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:46:02,674 INFO L82 PathProgramCache]: Analyzing trace with hash -605026554, now seen corresponding path program 1 times [2021-04-28 22:46:02,674 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:46:02,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113389066] [2021-04-28 22:46:02,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:46:02,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:46:02,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:02,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:46:02,722 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:02,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:02,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:46:02,727 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113389066] [2021-04-28 22:46:02,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:46:02,728 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:46:02,728 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2110516019] [2021-04-28 22:46:02,728 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:46:02,728 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:46:02,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:46:02,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:46:02,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 359 [2021-04-28 22:46:02,732 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 120 transitions, 932 flow. Second operand has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:02,732 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:46:02,732 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 359 [2021-04-28 22:46:02,732 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:46:15,555 INFO L129 PetriNetUnfolder]: 67020/101712 cut-off events. [2021-04-28 22:46:15,555 INFO L130 PetriNetUnfolder]: For 152376/763538 co-relation queries the response was YES. [2021-04-28 22:46:16,108 INFO L84 FinitePrefix]: Finished finitePrefix Result has 488556 conditions, 101712 events. 67020/101712 cut-off events. For 152376/763538 co-relation queries the response was YES. Maximal size of possible extension queue 18498. Compared 990956 event pairs, 13887 based on Foata normal form. 286/30169 useless extension candidates. Maximal degree in co-relation 488525. Up to 96712 conditions per place. [2021-04-28 22:46:16,866 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 3 selfloop transitions, 3 changer transitions 0/120 dead transitions. [2021-04-28 22:46:16,866 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 120 transitions, 944 flow [2021-04-28 22:46:16,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:46:16,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:46:16,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2021-04-28 22:46:16,871 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6908077994428969 [2021-04-28 22:46:16,871 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2021-04-28 22:46:16,871 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2021-04-28 22:46:16,872 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:46:16,872 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2021-04-28 22:46:16,875 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:16,877 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:16,878 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 359.0) internal successors, (1436), 4 states have internal predecessors, (1436), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:16,878 INFO L185 Difference]: Start difference. First operand has 90 places, 120 transitions, 932 flow. Second operand 3 states and 744 transitions. [2021-04-28 22:46:16,878 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 120 transitions, 944 flow [2021-04-28 22:46:22,025 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 120 transitions, 786 flow, removed 53 selfloop flow, removed 3 redundant places. [2021-04-28 22:46:22,027 INFO L241 Difference]: Finished difference. Result has 90 places, 120 transitions, 785 flow [2021-04-28 22:46:22,027 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=774, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=120, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=785, PETRI_PLACES=90, PETRI_TRANSITIONS=120} [2021-04-28 22:46:22,028 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -56 predicate places. [2021-04-28 22:46:22,028 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:46:22,028 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 120 transitions, 785 flow [2021-04-28 22:46:22,028 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 120 transitions, 785 flow [2021-04-28 22:46:22,029 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 120 transitions, 785 flow [2021-04-28 22:46:33,549 INFO L129 PetriNetUnfolder]: 67180/101920 cut-off events. [2021-04-28 22:46:33,549 INFO L130 PetriNetUnfolder]: For 193595/356791 co-relation queries the response was YES. [2021-04-28 22:46:34,149 INFO L84 FinitePrefix]: Finished finitePrefix Result has 466928 conditions, 101920 events. 67180/101920 cut-off events. For 193595/356791 co-relation queries the response was YES. Maximal size of possible extension queue 18586. Compared 1017529 event pairs, 14679 based on Foata normal form. 18/30108 useless extension candidates. Maximal degree in co-relation 466899. Up to 87334 conditions per place. [2021-04-28 22:46:35,411 INFO L146 LiptonReduction]: Number of co-enabled transitions 4004 [2021-04-28 22:46:35,504 INFO L158 LiptonReduction]: Checked pairs total: 522 [2021-04-28 22:46:35,504 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:46:35,505 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 13477 [2021-04-28 22:46:35,505 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 120 transitions, 785 flow [2021-04-28 22:46:35,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:35,506 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:46:35,506 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:46:35,506 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:46:35,507 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:46:35,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:46:35,507 INFO L82 PathProgramCache]: Analyzing trace with hash -6279110, now seen corresponding path program 1 times [2021-04-28 22:46:35,507 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:46:35,507 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486903658] [2021-04-28 22:46:35,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:46:35,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:46:35,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:35,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:35,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:35,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:35,590 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:35,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:46:35,599 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:35,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:46:35,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:46:35,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:46:35,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:46:35,616 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486903658] [2021-04-28 22:46:35,616 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:46:35,616 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:46:35,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33012013] [2021-04-28 22:46:35,616 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:46:35,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:46:35,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:46:35,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:46:35,620 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 267 out of 359 [2021-04-28 22:46:35,622 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 120 transitions, 785 flow. Second operand has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:35,622 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:46:35,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 267 of 359 [2021-04-28 22:46:35,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:46:49,988 INFO L129 PetriNetUnfolder]: 68076/108045 cut-off events. [2021-04-28 22:46:49,988 INFO L130 PetriNetUnfolder]: For 162321/812104 co-relation queries the response was YES. [2021-04-28 22:46:50,627 INFO L84 FinitePrefix]: Finished finitePrefix Result has 593815 conditions, 108045 events. 68076/108045 cut-off events. For 162321/812104 co-relation queries the response was YES. Maximal size of possible extension queue 18951. Compared 1115695 event pairs, 1944 based on Foata normal form. 2299/35079 useless extension candidates. Maximal degree in co-relation 593784. Up to 91360 conditions per place. [2021-04-28 22:46:51,301 INFO L132 encePairwiseOnDemand]: 339/359 looper letters, 24 selfloop transitions, 92 changer transitions 12/164 dead transitions. [2021-04-28 22:46:51,301 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 164 transitions, 1427 flow [2021-04-28 22:46:51,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:46:51,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:46:51,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2529 transitions. [2021-04-28 22:46:51,311 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7827298050139275 [2021-04-28 22:46:51,311 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2529 transitions. [2021-04-28 22:46:51,311 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2529 transitions. [2021-04-28 22:46:51,314 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:46:51,314 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2529 transitions. [2021-04-28 22:46:51,320 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 281.0) internal successors, (2529), 9 states have internal predecessors, (2529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:51,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 359.0) internal successors, (3590), 10 states have internal predecessors, (3590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:51,328 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 359.0) internal successors, (3590), 10 states have internal predecessors, (3590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:46:51,328 INFO L185 Difference]: Start difference. First operand has 90 places, 120 transitions, 785 flow. Second operand 9 states and 2529 transitions. [2021-04-28 22:46:51,328 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 164 transitions, 1427 flow [2021-04-28 22:46:56,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 164 transitions, 1422 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:46:56,130 INFO L241 Difference]: Finished difference. Result has 100 places, 149 transitions, 1341 flow [2021-04-28 22:46:56,131 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=359, PETRI_DIFFERENCE_MINUEND_FLOW=763, PETRI_DIFFERENCE_MINUEND_PLACES=89, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1341, PETRI_PLACES=100, PETRI_TRANSITIONS=149} [2021-04-28 22:46:56,131 INFO L343 CegarLoopForPetriNet]: 146 programPoint places, -46 predicate places. [2021-04-28 22:46:56,131 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:46:56,131 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 100 places, 149 transitions, 1341 flow [2021-04-28 22:46:56,132 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 100 places, 149 transitions, 1341 flow [2021-04-28 22:46:56,133 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 100 places, 149 transitions, 1341 flow [2021-04-28 22:47:06,905 INFO L129 PetriNetUnfolder]: 47292/80670 cut-off events. [2021-04-28 22:47:06,905 INFO L130 PetriNetUnfolder]: For 468258/796263 co-relation queries the response was YES. [2021-04-28 22:47:07,507 INFO L84 FinitePrefix]: Finished finitePrefix Result has 486750 conditions, 80670 events. 47292/80670 cut-off events. For 468258/796263 co-relation queries the response was YES. Maximal size of possible extension queue 17524. Compared 957557 event pairs, 1944 based on Foata normal form. 10/22972 useless extension candidates. Maximal degree in co-relation 486717. Up to 66709 conditions per place. [2021-04-28 22:47:08,373 INFO L146 LiptonReduction]: Number of co-enabled transitions 4462 [2021-04-28 22:47:08,429 INFO L158 LiptonReduction]: Checked pairs total: 610 [2021-04-28 22:47:08,429 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:47:08,429 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 12298 [2021-04-28 22:47:08,430 INFO L480 AbstractCegarLoop]: Abstraction has has 100 places, 149 transitions, 1341 flow [2021-04-28 22:47:08,431 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 267.8333333333333) internal successors, (1607), 6 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:47:08,431 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:47:08,432 INFO L263 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] [2021-04-28 22:47:08,432 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 22:47:08,432 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 22:47:08,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:47:08,433 INFO L82 PathProgramCache]: Analyzing trace with hash -195397226, now seen corresponding path program 1 times [2021-04-28 22:47:08,433 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:47:08,433 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322550685] [2021-04-28 22:47:08,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:47:08,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:47:08,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:47:08,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:47:08,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:47:08,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:47:08,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:47:08,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:47:08,738 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:47:08,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322550685] [2021-04-28 22:47:08,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:47:08,739 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:47:08,739 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995833707] [2021-04-28 22:47:08,739 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:47:08,739 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:47:08,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:47:08,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:47:08,742 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 248 out of 359 [2021-04-28 22:47:08,743 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 100 places, 149 transitions, 1341 flow. Second operand has 4 states, 4 states have (on average 249.0) internal successors, (996), 4 states have internal predecessors, (996), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:47:08,744 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:47:08,744 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 248 of 359 [2021-04-28 22:47:08,744 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:47:32,152 INFO L129 PetriNetUnfolder]: 90468/153571 cut-off events. [2021-04-28 22:47:32,153 INFO L130 PetriNetUnfolder]: For 1086225/2089390 co-relation queries the response was YES. [2021-04-28 22:47:33,300 INFO L84 FinitePrefix]: Finished finitePrefix Result has 927862 conditions, 153571 events. 90468/153571 cut-off events. For 1086225/2089390 co-relation queries the response was YES. Maximal size of possible extension queue 33981. Compared 1862651 event pairs, 4266 based on Foata normal form. 281/43340 useless extension candidates. Maximal degree in co-relation 927827. Up to 127450 conditions per place. [2021-04-28 22:47:34,166 INFO L132 encePairwiseOnDemand]: 356/359 looper letters, 4 selfloop transitions, 2 changer transitions 1/151 dead transitions. [2021-04-28 22:47:34,166 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 151 transitions, 1371 flow [2021-04-28 22:47:34,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:47:34,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:47:34,171 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 999 transitions. [2021-04-28 22:47:34,172 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6956824512534819 [2021-04-28 22:47:34,172 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 999 transitions. [2021-04-28 22:47:34,172 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 999 transitions. [2021-04-28 22:47:34,173 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:47:34,173 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 999 transitions. [2021-04-28 22:47:34,176 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 249.75) internal successors, (999), 4 states have internal predecessors, (999), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:47:34,178 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:47:34,179 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 359.0) internal successors, (1795), 5 states have internal predecessors, (1795), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:47:34,179 INFO L185 Difference]: Start difference. First operand has 100 places, 149 transitions, 1341 flow. Second operand 4 states and 999 transitions. [2021-04-28 22:47:34,179 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 151 transitions, 1371 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown