/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/mix029_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 19:40:08,737 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 19:40:08,742 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 19:40:08,804 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 19:40:08,805 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 19:40:08,810 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 19:40:08,815 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 19:40:08,826 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 19:40:08,830 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 19:40:08,838 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 19:40:08,840 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 19:40:08,842 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 19:40:08,843 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 19:40:08,846 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 19:40:08,848 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 19:40:08,850 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 19:40:08,854 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 19:40:08,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 19:40:08,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 19:40:08,872 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 19:40:08,875 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 19:40:08,877 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 19:40:08,879 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 19:40:08,882 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 19:40:08,892 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 19:40:08,897 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 19:40:08,898 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 19:40:08,901 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 19:40:08,902 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 19:40:08,903 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 19:40:08,904 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 19:40:08,905 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 19:40:08,905 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 19:40:08,906 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 19:40:08,907 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 19:40:08,908 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 19:40:08,909 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 19:40:08,967 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 19:40:08,967 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 19:40:08,972 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 19:40:08,973 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 19:40:08,973 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 19:40:08,973 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 19:40:08,973 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 19:40:08,974 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 19:40:08,974 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 19:40:08,975 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 19:40:08,976 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 19:40:08,976 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 19:40:08,976 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 19:40:08,977 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 19:40:08,977 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 19:40:08,977 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 19:40:08,977 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 19:40:08,978 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 19:40:08,978 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 19:40:08,978 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 19:40:08,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 19:40:08,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 19:40:08,979 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 19:40:08,979 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 19:40:08,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 19:40:08,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 19:40:08,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 19:40:08,980 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 19:40:08,981 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 19:40:08,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 19:40:08,981 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 19:40:09,430 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 19:40:09,461 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 19:40:09,465 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 19:40:09,466 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 19:40:09,467 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 19:40:09,468 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix029_power.opt.i [2021-04-28 19:40:09,578 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c335ae12b/58fbf2912d2f48d58d08b1756ad279a5/FLAGaf695ddea [2021-04-28 19:40:10,506 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 19:40:10,507 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix029_power.opt.i [2021-04-28 19:40:10,523 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c335ae12b/58fbf2912d2f48d58d08b1756ad279a5/FLAGaf695ddea [2021-04-28 19:40:10,677 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c335ae12b/58fbf2912d2f48d58d08b1756ad279a5 [2021-04-28 19:40:10,681 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 19:40:10,741 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 19:40:10,743 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 19:40:10,743 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 19:40:10,748 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 19:40:10,749 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:40:10" (1/1) ... [2021-04-28 19:40:10,751 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70f489ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:10, skipping insertion in model container [2021-04-28 19:40:10,751 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 07:40:10" (1/1) ... [2021-04-28 19:40:10,762 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 19:40:10,811 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 19:40:11,041 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/mix029_power.opt.i[950,963] [2021-04-28 19:40:11,309 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:40:11,322 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 19:40:11,347 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/mix029_power.opt.i[950,963] [2021-04-28 19:40:11,478 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 19:40:11,637 INFO L208 MainTranslator]: Completed translation [2021-04-28 19:40:11,637 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11 WrapperNode [2021-04-28 19:40:11,637 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 19:40:11,639 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 19:40:11,639 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 19:40:11,639 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 19:40:11,648 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,671 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,712 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 19:40:11,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 19:40:11,714 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 19:40:11,714 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 19:40:11,725 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,732 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,733 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,748 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,754 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (1/1) ... [2021-04-28 19:40:11,765 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 19:40:11,766 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 19:40:11,767 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 19:40:11,767 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 19:40:11,768 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (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 19:40:11,909 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 19:40:11,910 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 19:40:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 19:40:11,911 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 19:40:11,913 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 19:40:11,913 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 19:40:11,914 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 19:40:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 19:40:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 19:40:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 19:40:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 19:40:11,915 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 19:40:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 19:40:11,915 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 19:40:11,916 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 19:40:11,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 19:40:11,919 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 19:40:14,591 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 19:40:14,592 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 19:40:14,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:40:14 BoogieIcfgContainer [2021-04-28 19:40:14,595 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 19:40:14,597 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 19:40:14,597 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 19:40:14,602 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 19:40:14,602 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 07:40:10" (1/3) ... [2021-04-28 19:40:14,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133575e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:40:14, skipping insertion in model container [2021-04-28 19:40:14,603 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 07:40:11" (2/3) ... [2021-04-28 19:40:14,603 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@133575e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 07:40:14, skipping insertion in model container [2021-04-28 19:40:14,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 07:40:14" (3/3) ... [2021-04-28 19:40:14,606 INFO L111 eAbstractionObserver]: Analyzing ICFG mix029_power.opt.i [2021-04-28 19:40:14,616 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 19:40:14,622 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 19:40:14,624 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 19:40:14,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,665 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,667 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,667 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,668 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,669 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,670 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,671 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,672 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,673 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,673 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,673 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,674 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,674 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,674 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,674 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,675 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,675 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,675 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,676 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,676 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,677 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,678 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,679 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,680 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,680 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,681 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,681 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,681 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,681 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,681 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,681 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,682 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,683 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,684 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,685 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,686 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,689 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,690 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,691 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,691 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,693 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,694 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,694 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,694 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,694 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,694 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,695 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,695 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,695 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,695 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,697 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,698 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,698 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,699 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,699 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,700 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,700 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,701 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 19:40:14,702 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 19:40:14,731 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 19:40:14,763 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 19:40:14,763 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 19:40:14,763 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 19:40:14,764 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 19:40:14,764 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 19:40:14,764 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 19:40:14,764 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 19:40:14,764 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 19:40:14,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 19:40:14,853 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 19:40:14,853 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:40:14,865 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 89 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:40:14,865 INFO L82 GeneralOperation]: Start removeDead. Operand has 127 places, 116 transitions, 252 flow [2021-04-28 19:40:14,876 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 123 places, 112 transitions, 236 flow [2021-04-28 19:40:14,878 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:40:14,898 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 19:40:14,907 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 123 places, 112 transitions, 236 flow [2021-04-28 19:40:14,914 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 123 places, 112 transitions, 236 flow [2021-04-28 19:40:15,027 INFO L129 PetriNetUnfolder]: 2/112 cut-off events. [2021-04-28 19:40:15,027 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:40:15,028 INFO L84 FinitePrefix]: Finished finitePrefix Result has 125 conditions, 112 events. 2/112 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 93 event pairs, 0 based on Foata normal form. 0/108 useless extension candidates. Maximal degree in co-relation 76. Up to 2 conditions per place. [2021-04-28 19:40:15,036 INFO L146 LiptonReduction]: Number of co-enabled transitions 2630 [2021-04-28 19:40:16,448 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-04-28 19:40:19,068 WARN L205 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 19:40:19,188 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 19:40:19,759 WARN L205 SmtUtils]: Spent 569.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 88 [2021-04-28 19:40:19,997 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 19:40:21,287 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:40:21,835 WARN L205 SmtUtils]: Spent 544.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:40:24,316 WARN L205 SmtUtils]: Spent 2.48 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:40:25,420 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:40:29,574 WARN L205 SmtUtils]: Spent 1.27 s on a formula simplification. DAG size of input: 232 DAG size of output: 192 [2021-04-28 19:40:30,137 WARN L205 SmtUtils]: Spent 559.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:40:32,790 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:40:34,148 WARN L205 SmtUtils]: Spent 1.36 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:40:35,502 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification. DAG size of input: 234 DAG size of output: 194 [2021-04-28 19:40:36,133 WARN L205 SmtUtils]: Spent 628.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2021-04-28 19:40:38,841 WARN L205 SmtUtils]: Spent 2.70 s on a formula simplification. DAG size of input: 318 DAG size of output: 274 [2021-04-28 19:40:40,098 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 271 [2021-04-28 19:40:42,187 WARN L205 SmtUtils]: Spent 2.08 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 19:40:42,895 WARN L205 SmtUtils]: Spent 705.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 19:40:45,959 WARN L205 SmtUtils]: Spent 3.06 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:40:47,380 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:40:52,681 WARN L205 SmtUtils]: Spent 1.57 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 19:40:53,364 WARN L205 SmtUtils]: Spent 680.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:40:56,413 WARN L205 SmtUtils]: Spent 3.05 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:40:57,970 WARN L205 SmtUtils]: Spent 1.55 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:40:59,609 WARN L205 SmtUtils]: Spent 1.63 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 19:41:00,272 WARN L205 SmtUtils]: Spent 660.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 19:41:03,441 WARN L205 SmtUtils]: Spent 3.17 s on a formula simplification. DAG size of input: 316 DAG size of output: 271 [2021-04-28 19:41:04,785 WARN L205 SmtUtils]: Spent 1.34 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 19:41:06,320 WARN L205 SmtUtils]: Spent 1.53 s on a formula simplification. DAG size of input: 233 DAG size of output: 192 [2021-04-28 19:41:07,070 WARN L205 SmtUtils]: Spent 740.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2021-04-28 19:41:10,269 WARN L205 SmtUtils]: Spent 3.20 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:41:11,740 WARN L205 SmtUtils]: Spent 1.47 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:41:13,360 WARN L205 SmtUtils]: Spent 1.62 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:41:14,079 WARN L205 SmtUtils]: Spent 716.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:41:17,311 WARN L205 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:41:18,757 WARN L205 SmtUtils]: Spent 1.44 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:41:22,685 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:41:23,396 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:41:23,500 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:41:23,705 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:41:26,432 WARN L205 SmtUtils]: Spent 1.71 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 19:41:27,213 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 19:41:30,706 WARN L205 SmtUtils]: Spent 3.49 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 19:41:32,349 WARN L205 SmtUtils]: Spent 1.64 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 19:41:34,383 WARN L205 SmtUtils]: Spent 2.03 s on a formula simplification. DAG size of input: 233 DAG size of output: 193 [2021-04-28 19:41:35,301 WARN L205 SmtUtils]: Spent 915.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2021-04-28 19:41:39,262 WARN L205 SmtUtils]: Spent 3.96 s on a formula simplification. DAG size of input: 317 DAG size of output: 273 [2021-04-28 19:41:41,101 WARN L205 SmtUtils]: Spent 1.84 s on a formula simplification that was a NOOP. DAG size: 270 [2021-04-28 19:41:44,020 WARN L205 SmtUtils]: Spent 2.91 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 19:41:44,945 WARN L205 SmtUtils]: Spent 922.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 19:41:49,056 WARN L205 SmtUtils]: Spent 4.11 s on a formula simplification. DAG size of input: 316 DAG size of output: 272 [2021-04-28 19:41:51,039 WARN L205 SmtUtils]: Spent 1.98 s on a formula simplification that was a NOOP. DAG size: 269 [2021-04-28 19:41:51,757 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:41:51,879 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:41:51,988 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:41:52,097 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 48 [2021-04-28 19:41:52,218 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:41:52,340 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:41:52,459 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:41:52,580 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:41:52,691 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:41:52,807 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:41:52,924 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:41:53,038 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:41:53,471 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:41:53,593 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:41:53,724 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:41:53,849 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 19:41:57,082 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-04-28 19:41:57,186 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-04-28 19:41:57,390 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 47 [2021-04-28 19:41:57,720 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 19:41:57,829 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 19:41:57,941 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 19:41:58,049 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-04-28 19:41:58,448 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:41:58,627 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:41:58,807 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:41:58,982 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:41:59,138 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:41:59,292 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:41:59,454 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:41:59,620 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:41:59,809 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:41:59,992 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:42:00,182 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:42:00,373 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 19:42:00,537 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:42:00,702 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:42:00,868 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:42:01,034 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 19:42:01,253 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:42:01,457 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:42:01,648 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:42:01,857 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 19:42:02,010 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:02,167 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:02,333 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:02,498 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:02,649 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:02,798 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:02,948 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:03,098 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:03,245 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:03,394 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:03,545 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:03,714 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:03,891 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:42:04,078 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:42:04,255 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:42:04,436 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 19:42:04,959 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:05,104 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:05,249 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:05,401 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:05,540 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:05,679 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:05,819 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:05,963 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 19:42:06,074 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:42:06,184 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:42:06,292 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:42:06,402 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 19:42:06,531 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:42:06,661 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:42:06,791 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:42:06,921 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 19:42:07,043 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:42:07,158 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:42:07,274 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:42:07,389 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 19:42:07,608 WARN L205 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:42:07,829 WARN L205 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:42:08,049 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:42:08,251 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 81 [2021-04-28 19:42:08,394 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:08,552 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:08,700 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:08,848 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:08,994 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:09,138 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:09,283 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:09,432 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:09,578 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:09,725 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:09,875 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:10,027 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:10,168 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:10,306 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:10,440 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:10,571 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 19:42:10,710 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:10,848 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:10,986 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:11,124 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:11,342 WARN L205 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:42:11,556 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:42:11,771 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:42:11,990 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 87 [2021-04-28 19:42:12,196 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:12,408 WARN L205 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:12,632 WARN L205 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:12,855 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:13,135 WARN L205 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:42:13,391 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:42:13,633 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:42:13,874 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 86 [2021-04-28 19:42:14,026 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:14,178 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:14,333 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:14,481 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 19:42:14,678 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:42:14,868 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:42:15,067 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:42:15,270 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 19:42:15,502 WARN L205 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:42:15,727 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:42:15,943 WARN L205 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:42:16,158 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 19:42:16,386 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:16,602 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:16,846 WARN L205 SmtUtils]: Spent 237.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:17,083 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:17,278 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:42:17,485 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:42:17,690 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:42:17,905 WARN L205 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 19:42:18,127 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:42:18,345 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:42:18,578 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:42:18,798 WARN L205 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 19:42:18,976 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:42:19,159 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:42:19,342 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:42:19,518 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 19:42:19,784 WARN L205 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:42:20,048 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:42:20,325 WARN L205 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:42:20,596 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 19:42:20,891 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:21,188 WARN L205 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:21,460 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:21,734 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:22,038 WARN L205 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:42:22,347 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:42:22,649 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:42:22,957 WARN L205 SmtUtils]: Spent 306.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 19:42:23,211 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:23,482 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:23,756 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:24,020 WARN L205 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:24,253 WARN L205 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:24,509 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:24,747 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:24,972 WARN L205 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:25,320 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:42:25,626 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:42:25,923 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:42:26,215 WARN L205 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 19:42:26,555 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:26,878 WARN L205 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:27,231 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:27,613 WARN L205 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:27,954 WARN L205 SmtUtils]: Spent 337.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:42:28,306 WARN L205 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:42:28,660 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:42:29,016 WARN L205 SmtUtils]: Spent 354.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 19:42:29,244 WARN L205 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:29,473 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:29,702 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:29,928 WARN L205 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 19:42:30,200 WARN L205 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:30,482 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:30,747 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:31,008 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 19:42:31,318 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:31,624 WARN L205 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:31,930 WARN L205 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:32,247 WARN L205 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 19:42:32,581 WARN L205 SmtUtils]: Spent 331.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:42:32,910 WARN L205 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:42:33,270 WARN L205 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:42:33,624 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 19:42:34,007 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:34,389 WARN L205 SmtUtils]: Spent 380.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:34,765 WARN L205 SmtUtils]: Spent 373.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:35,114 WARN L205 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:36,136 WARN L205 SmtUtils]: Spent 1.02 s on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 19:42:36,617 WARN L205 SmtUtils]: Spent 478.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 19:42:37,583 WARN L205 SmtUtils]: Spent 962.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 117 [2021-04-28 19:42:38,032 WARN L205 SmtUtils]: Spent 446.00 ms on a formula simplification that was a NOOP. DAG size: 113 [2021-04-28 19:42:39,066 WARN L205 SmtUtils]: Spent 1.03 s on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 19:42:39,537 WARN L205 SmtUtils]: Spent 468.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 19:42:40,485 WARN L205 SmtUtils]: Spent 946.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 122 [2021-04-28 19:42:40,947 WARN L205 SmtUtils]: Spent 459.00 ms on a formula simplification that was a NOOP. DAG size: 118 [2021-04-28 19:42:41,345 WARN L205 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:41,717 WARN L205 SmtUtils]: Spent 370.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:42,088 WARN L205 SmtUtils]: Spent 368.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:42,443 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:42,823 WARN L205 SmtUtils]: Spent 378.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:43,177 WARN L205 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:43,553 WARN L205 SmtUtils]: Spent 374.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:43,908 WARN L205 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:44,301 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:44,678 WARN L205 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:45,042 WARN L205 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:45,419 WARN L205 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 104 [2021-04-28 19:42:45,730 WARN L205 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:46,042 WARN L205 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:46,361 WARN L205 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:46,665 WARN L205 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 19:42:46,710 INFO L158 LiptonReduction]: Checked pairs total: 26113 [2021-04-28 19:42:46,710 INFO L160 LiptonReduction]: Total number of compositions: 275 [2021-04-28 19:42:46,716 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 151840 [2021-04-28 19:42:46,741 INFO L129 PetriNetUnfolder]: 0/82 cut-off events. [2021-04-28 19:42:46,742 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:42:46,742 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:42:46,743 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:42:46,743 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:42:46,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:42:46,749 INFO L82 PathProgramCache]: Analyzing trace with hash -914108323, now seen corresponding path program 1 times [2021-04-28 19:42:46,759 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:42:46,760 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1381145691] [2021-04-28 19:42:46,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:42:46,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:42:47,030 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:47,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:42:47,047 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 19:42:47,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1381145691] [2021-04-28 19:42:47,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:42:47,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:42:47,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1464839257] [2021-04-28 19:42:47,062 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:42:47,062 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:42:47,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:42:47,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:42:47,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 303 out of 391 [2021-04-28 19:42:47,095 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 144 transitions, 300 flow. Second operand has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 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 19:42:47,095 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:42:47,095 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 303 of 391 [2021-04-28 19:42:47,097 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:42:47,763 INFO L129 PetriNetUnfolder]: 329/808 cut-off events. [2021-04-28 19:42:47,763 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:42:47,767 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1367 conditions, 808 events. 329/808 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 5939 event pairs, 195 based on Foata normal form. 11/397 useless extension candidates. Maximal degree in co-relation 1285. Up to 401 conditions per place. [2021-04-28 19:42:47,771 INFO L132 encePairwiseOnDemand]: 372/391 looper letters, 9 selfloop transitions, 2 changer transitions 103/157 dead transitions. [2021-04-28 19:42:47,771 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 157 transitions, 428 flow [2021-04-28 19:42:47,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:42:47,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:42:47,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 963 transitions. [2021-04-28 19:42:47,795 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8209718670076727 [2021-04-28 19:42:47,796 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 963 transitions. [2021-04-28 19:42:47,796 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 963 transitions. [2021-04-28 19:42:47,801 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:42:47,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 963 transitions. [2021-04-28 19:42:47,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 321.0) internal successors, (963), 3 states have internal predecessors, (963), 0 states have call successors, (0), 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 19:42:47,836 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:42:47,837 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:42:47,839 INFO L185 Difference]: Start difference. First operand has 155 places, 144 transitions, 300 flow. Second operand 3 states and 963 transitions. [2021-04-28 19:42:47,840 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 157 transitions, 428 flow [2021-04-28 19:42:47,849 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 157 transitions, 424 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 19:42:47,858 INFO L241 Difference]: Finished difference. Result has 150 places, 50 transitions, 112 flow [2021-04-28 19:42:47,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=139, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=150, PETRI_TRANSITIONS=50} [2021-04-28 19:42:47,862 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -5 predicate places. [2021-04-28 19:42:47,863 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:42:47,863 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 150 places, 50 transitions, 112 flow [2021-04-28 19:42:47,865 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 150 places, 50 transitions, 112 flow [2021-04-28 19:42:47,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 50 transitions, 112 flow [2021-04-28 19:42:47,881 INFO L129 PetriNetUnfolder]: 0/50 cut-off events. [2021-04-28 19:42:47,881 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:42:47,881 INFO L84 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 50 events. 0/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 172 event pairs, 0 based on Foata normal form. 0/28 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 19:42:47,882 INFO L146 LiptonReduction]: Number of co-enabled transitions 1494 [2021-04-28 19:42:48,210 INFO L158 LiptonReduction]: Checked pairs total: 1518 [2021-04-28 19:42:48,210 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:42:48,211 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 348 [2021-04-28 19:42:48,212 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 50 transitions, 112 flow [2021-04-28 19:42:48,214 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 303.6666666666667) internal successors, (911), 3 states have internal predecessors, (911), 0 states have call successors, (0), 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 19:42:48,214 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:42:48,214 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:42:48,214 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 19:42:48,215 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:42:48,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:42:48,215 INFO L82 PathProgramCache]: Analyzing trace with hash -891907862, now seen corresponding path program 1 times [2021-04-28 19:42:48,215 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:42:48,216 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345082797] [2021-04-28 19:42:48,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:42:48,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:42:48,420 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:48,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:42:48,427 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 19:42:48,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345082797] [2021-04-28 19:42:48,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:42:48,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:42:48,429 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076493561] [2021-04-28 19:42:48,430 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:42:48,430 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:42:48,431 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:42:48,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:42:48,433 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 327 out of 391 [2021-04-28 19:42:48,435 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 50 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 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 19:42:48,435 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:42:48,435 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 327 of 391 [2021-04-28 19:42:48,435 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:42:48,467 INFO L129 PetriNetUnfolder]: 7/78 cut-off events. [2021-04-28 19:42:48,467 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:42:48,468 INFO L84 FinitePrefix]: Finished finitePrefix Result has 109 conditions, 78 events. 7/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 263 event pairs, 3 based on Foata normal form. 1/51 useless extension candidates. Maximal degree in co-relation 100. Up to 18 conditions per place. [2021-04-28 19:42:48,468 INFO L132 encePairwiseOnDemand]: 387/391 looper letters, 4 selfloop transitions, 3 changer transitions 2/52 dead transitions. [2021-04-28 19:42:48,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 52 transitions, 130 flow [2021-04-28 19:42:48,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:42:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:42:48,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 989 transitions. [2021-04-28 19:42:48,475 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8431372549019608 [2021-04-28 19:42:48,475 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 989 transitions. [2021-04-28 19:42:48,475 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 989 transitions. [2021-04-28 19:42:48,476 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:42:48,476 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 989 transitions. [2021-04-28 19:42:48,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 329.6666666666667) internal successors, (989), 3 states have internal predecessors, (989), 0 states have call successors, (0), 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 19:42:48,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:42:48,485 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:42:48,485 INFO L185 Difference]: Start difference. First operand has 61 places, 50 transitions, 112 flow. Second operand 3 states and 989 transitions. [2021-04-28 19:42:48,485 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 52 transitions, 130 flow [2021-04-28 19:42:48,486 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 52 transitions, 126 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:42:48,487 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 123 flow [2021-04-28 19:42:48,488 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=108, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=123, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-04-28 19:42:48,488 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -93 predicate places. [2021-04-28 19:42:48,488 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:42:48,489 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:42:48,489 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 50 transitions, 123 flow [2021-04-28 19:42:48,490 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 50 transitions, 123 flow [2021-04-28 19:42:48,499 INFO L129 PetriNetUnfolder]: 3/62 cut-off events. [2021-04-28 19:42:48,500 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 19:42:48,500 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 62 events. 3/62 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 221 event pairs, 1 based on Foata normal form. 0/37 useless extension candidates. Maximal degree in co-relation 77. Up to 10 conditions per place. [2021-04-28 19:42:48,502 INFO L146 LiptonReduction]: Number of co-enabled transitions 1504 [2021-04-28 19:42:48,619 INFO L158 LiptonReduction]: Checked pairs total: 1416 [2021-04-28 19:42:48,619 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:42:48,620 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 132 [2021-04-28 19:42:48,621 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 50 transitions, 123 flow [2021-04-28 19:42:48,623 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 327.6666666666667) internal successors, (983), 3 states have internal predecessors, (983), 0 states have call successors, (0), 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 19:42:48,623 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:42:48,623 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:42:48,623 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 19:42:48,623 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:42:48,624 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:42:48,624 INFO L82 PathProgramCache]: Analyzing trace with hash -1881346864, now seen corresponding path program 1 times [2021-04-28 19:42:48,624 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:42:48,624 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890950237] [2021-04-28 19:42:48,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:42:48,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:42:48,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:48,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:42:48,774 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 19:42:48,774 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890950237] [2021-04-28 19:42:48,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:42:48,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 19:42:48,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592264001] [2021-04-28 19:42:48,775 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 19:42:48,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:42:48,776 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 19:42:48,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 19:42:48,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 272 out of 391 [2021-04-28 19:42:48,780 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 50 transitions, 123 flow. Second operand has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 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 19:42:48,780 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:42:48,780 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 272 of 391 [2021-04-28 19:42:48,781 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:42:48,801 INFO L129 PetriNetUnfolder]: 2/58 cut-off events. [2021-04-28 19:42:48,801 INFO L130 PetriNetUnfolder]: For 5/5 co-relation queries the response was YES. [2021-04-28 19:42:48,802 INFO L84 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 58 events. 2/58 cut-off events. For 5/5 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 189 event pairs, 0 based on Foata normal form. 2/38 useless extension candidates. Maximal degree in co-relation 75. Up to 8 conditions per place. [2021-04-28 19:42:48,802 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 1 selfloop transitions, 2 changer transitions 1/50 dead transitions. [2021-04-28 19:42:48,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 50 transitions, 129 flow [2021-04-28 19:42:48,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 19:42:48,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 19:42:48,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 820 transitions. [2021-04-28 19:42:48,809 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6990622335890878 [2021-04-28 19:42:48,809 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 820 transitions. [2021-04-28 19:42:48,809 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 820 transitions. [2021-04-28 19:42:48,810 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:42:48,810 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 820 transitions. [2021-04-28 19:42:48,812 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 273.3333333333333) internal successors, (820), 3 states have internal predecessors, (820), 0 states have call successors, (0), 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 19:42:48,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:42:48,817 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 391.0) internal successors, (1564), 4 states have internal predecessors, (1564), 0 states have call successors, (0), 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 19:42:48,818 INFO L185 Difference]: Start difference. First operand has 60 places, 50 transitions, 123 flow. Second operand 3 states and 820 transitions. [2021-04-28 19:42:48,818 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 50 transitions, 129 flow [2021-04-28 19:42:48,819 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 50 transitions, 126 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 19:42:48,820 INFO L241 Difference]: Finished difference. Result has 62 places, 49 transitions, 126 flow [2021-04-28 19:42:48,820 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=120, PETRI_DIFFERENCE_MINUEND_PLACES=59, 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=126, PETRI_PLACES=62, PETRI_TRANSITIONS=49} [2021-04-28 19:42:48,821 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -93 predicate places. [2021-04-28 19:42:48,821 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:42:48,821 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:42:48,821 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 62 places, 49 transitions, 126 flow [2021-04-28 19:42:48,822 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 49 transitions, 126 flow [2021-04-28 19:42:48,831 INFO L129 PetriNetUnfolder]: 2/57 cut-off events. [2021-04-28 19:42:48,831 INFO L130 PetriNetUnfolder]: For 2/3 co-relation queries the response was YES. [2021-04-28 19:42:48,831 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 57 events. 2/57 cut-off events. For 2/3 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 200 event pairs, 0 based on Foata normal form. 0/35 useless extension candidates. Maximal degree in co-relation 74. Up to 8 conditions per place. [2021-04-28 19:42:48,833 INFO L146 LiptonReduction]: Number of co-enabled transitions 1438 [2021-04-28 19:42:48,916 INFO L158 LiptonReduction]: Checked pairs total: 1323 [2021-04-28 19:42:48,916 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:42:48,917 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 96 [2021-04-28 19:42:48,919 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 49 transitions, 126 flow [2021-04-28 19:42:48,920 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 272.6666666666667) internal successors, (818), 3 states have internal predecessors, (818), 0 states have call successors, (0), 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 19:42:48,920 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:42:48,920 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:42:48,920 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 19:42:48,920 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:42:48,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:42:48,921 INFO L82 PathProgramCache]: Analyzing trace with hash 1807785011, now seen corresponding path program 1 times [2021-04-28 19:42:48,921 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:42:48,921 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850293846] [2021-04-28 19:42:48,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:42:48,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:42:49,018 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:49,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:42:49,047 INFO L142 QuantifierPusher]: treesize reduction 21, result has 27.6 percent of original size [2021-04-28 19:42:49,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 19:42:49,066 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 19:42:49,067 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850293846] [2021-04-28 19:42:49,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:42:49,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 19:42:49,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030125429] [2021-04-28 19:42:49,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:42:49,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:42:49,068 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:42:49,068 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:42:49,070 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 230 out of 391 [2021-04-28 19:42:49,072 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 49 transitions, 126 flow. Second operand has 4 states, 4 states have (on average 230.75) internal successors, (923), 4 states have internal predecessors, (923), 0 states have call successors, (0), 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 19:42:49,072 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:42:49,072 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 230 of 391 [2021-04-28 19:42:49,072 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:42:49,261 INFO L129 PetriNetUnfolder]: 107/282 cut-off events. [2021-04-28 19:42:49,262 INFO L130 PetriNetUnfolder]: For 60/76 co-relation queries the response was YES. [2021-04-28 19:42:49,264 INFO L84 FinitePrefix]: Finished finitePrefix Result has 534 conditions, 282 events. 107/282 cut-off events. For 60/76 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 1488 event pairs, 41 based on Foata normal form. 6/215 useless extension candidates. Maximal degree in co-relation 522. Up to 155 conditions per place. [2021-04-28 19:42:49,266 INFO L132 encePairwiseOnDemand]: 384/391 looper letters, 9 selfloop transitions, 7 changer transitions 0/57 dead transitions. [2021-04-28 19:42:49,267 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 57 transitions, 174 flow [2021-04-28 19:42:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:42:49,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:42:49,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 938 transitions. [2021-04-28 19:42:49,273 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5997442455242967 [2021-04-28 19:42:49,273 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 938 transitions. [2021-04-28 19:42:49,273 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 938 transitions. [2021-04-28 19:42:49,274 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:42:49,274 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 938 transitions. [2021-04-28 19:42:49,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 234.5) internal successors, (938), 4 states have internal predecessors, (938), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 19:42:49,282 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:42:49,284 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:42:49,284 INFO L185 Difference]: Start difference. First operand has 61 places, 49 transitions, 126 flow. Second operand 4 states and 938 transitions. [2021-04-28 19:42:49,284 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 57 transitions, 174 flow [2021-04-28 19:42:49,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 57 transitions, 170 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:42:49,287 INFO L241 Difference]: Finished difference. Result has 64 places, 55 transitions, 170 flow [2021-04-28 19:42:49,287 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=43, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=170, PETRI_PLACES=64, PETRI_TRANSITIONS=55} [2021-04-28 19:42:49,287 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -91 predicate places. [2021-04-28 19:42:49,287 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:42:49,288 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions, 170 flow [2021-04-28 19:42:49,288 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 64 places, 55 transitions, 170 flow [2021-04-28 19:42:49,289 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions, 170 flow [2021-04-28 19:42:49,324 INFO L129 PetriNetUnfolder]: 55/210 cut-off events. [2021-04-28 19:42:49,324 INFO L130 PetriNetUnfolder]: For 103/113 co-relation queries the response was YES. [2021-04-28 19:42:49,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 408 conditions, 210 events. 55/210 cut-off events. For 103/113 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 1161 event pairs, 28 based on Foata normal form. 0/136 useless extension candidates. Maximal degree in co-relation 396. Up to 78 conditions per place. [2021-04-28 19:42:49,331 INFO L146 LiptonReduction]: Number of co-enabled transitions 1682 [2021-04-28 19:42:49,405 INFO L158 LiptonReduction]: Checked pairs total: 798 [2021-04-28 19:42:49,405 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:42:49,405 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 118 [2021-04-28 19:42:49,407 INFO L480 AbstractCegarLoop]: Abstraction has has 64 places, 55 transitions, 170 flow [2021-04-28 19:42:49,408 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 230.75) internal successors, (923), 4 states have internal predecessors, (923), 0 states have call successors, (0), 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 19:42:49,409 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:42:49,409 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:42:49,409 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 19:42:49,409 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:42:49,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:42:49,410 INFO L82 PathProgramCache]: Analyzing trace with hash 124084352, now seen corresponding path program 1 times [2021-04-28 19:42:49,410 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:42:49,410 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890894850] [2021-04-28 19:42:49,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:42:49,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:42:49,568 INFO L142 QuantifierPusher]: treesize reduction 16, result has 40.7 percent of original size [2021-04-28 19:42:49,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:42:49,598 INFO L142 QuantifierPusher]: treesize reduction 27, result has 64.0 percent of original size [2021-04-28 19:42:49,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-04-28 19:42:49,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:49,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 19:42:49,674 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 19:42:49,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890894850] [2021-04-28 19:42:49,674 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:42:49,674 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:42:49,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1625509666] [2021-04-28 19:42:49,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:42:49,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:42:49,676 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:42:49,677 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:42:49,679 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 226 out of 391 [2021-04-28 19:42:49,681 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 55 transitions, 170 flow. Second operand has 5 states, 5 states have (on average 226.8) internal successors, (1134), 5 states have internal predecessors, (1134), 0 states have call successors, (0), 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 19:42:49,681 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:42:49,681 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 226 of 391 [2021-04-28 19:42:49,681 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:42:49,926 INFO L129 PetriNetUnfolder]: 100/322 cut-off events. [2021-04-28 19:42:49,926 INFO L130 PetriNetUnfolder]: For 311/430 co-relation queries the response was YES. [2021-04-28 19:42:49,929 INFO L84 FinitePrefix]: Finished finitePrefix Result has 726 conditions, 322 events. 100/322 cut-off events. For 311/430 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 1926 event pairs, 9 based on Foata normal form. 22/256 useless extension candidates. Maximal degree in co-relation 712. Up to 107 conditions per place. [2021-04-28 19:42:49,932 INFO L132 encePairwiseOnDemand]: 385/391 looper letters, 15 selfloop transitions, 7 changer transitions 0/63 dead transitions. [2021-04-28 19:42:49,932 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 67 places, 63 transitions, 244 flow [2021-04-28 19:42:49,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:42:49,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:42:49,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 923 transitions. [2021-04-28 19:42:49,939 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.590153452685422 [2021-04-28 19:42:49,939 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 923 transitions. [2021-04-28 19:42:49,940 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 923 transitions. [2021-04-28 19:42:49,941 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:42:49,941 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 923 transitions. [2021-04-28 19:42:49,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 230.75) internal successors, (923), 4 states have internal predecessors, (923), 0 states have call successors, (0), 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 19:42:49,948 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:42:49,950 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:42:49,950 INFO L185 Difference]: Start difference. First operand has 64 places, 55 transitions, 170 flow. Second operand 4 states and 923 transitions. [2021-04-28 19:42:49,950 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 67 places, 63 transitions, 244 flow [2021-04-28 19:42:49,952 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 63 transitions, 244 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 19:42:49,954 INFO L241 Difference]: Finished difference. Result has 69 places, 58 transitions, 214 flow [2021-04-28 19:42:49,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=48, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=214, PETRI_PLACES=69, PETRI_TRANSITIONS=58} [2021-04-28 19:42:49,954 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -86 predicate places. [2021-04-28 19:42:49,955 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:42:49,955 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 69 places, 58 transitions, 214 flow [2021-04-28 19:42:49,955 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 69 places, 58 transitions, 214 flow [2021-04-28 19:42:49,956 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 69 places, 58 transitions, 214 flow [2021-04-28 19:42:50,006 INFO L129 PetriNetUnfolder]: 80/270 cut-off events. [2021-04-28 19:42:50,006 INFO L130 PetriNetUnfolder]: For 355/403 co-relation queries the response was YES. [2021-04-28 19:42:50,008 INFO L84 FinitePrefix]: Finished finitePrefix Result has 675 conditions, 270 events. 80/270 cut-off events. For 355/403 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1559 event pairs, 22 based on Foata normal form. 2/183 useless extension candidates. Maximal degree in co-relation 659. Up to 100 conditions per place. [2021-04-28 19:42:50,015 INFO L146 LiptonReduction]: Number of co-enabled transitions 1826 [2021-04-28 19:42:50,021 INFO L158 LiptonReduction]: Checked pairs total: 671 [2021-04-28 19:42:50,021 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:42:50,021 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 66 [2021-04-28 19:42:50,023 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 58 transitions, 214 flow [2021-04-28 19:42:50,024 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 226.8) internal successors, (1134), 5 states have internal predecessors, (1134), 0 states have call successors, (0), 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 19:42:50,024 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:42:50,024 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 19:42:50,024 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 19:42:50,024 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:42:50,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:42:50,025 INFO L82 PathProgramCache]: Analyzing trace with hash 776000499, now seen corresponding path program 1 times [2021-04-28 19:42:50,025 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:42:50,025 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266503683] [2021-04-28 19:42:50,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:42:50,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:42:50,101 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:50,102 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:42:50,111 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:42:50,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:42:50,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:50,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:42:50,135 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 19:42:50,135 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266503683] [2021-04-28 19:42:50,136 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:42:50,136 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:42:50,136 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048139216] [2021-04-28 19:42:50,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:42:50,136 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:42:50,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:42:50,137 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:42:50,139 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:42:50,141 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 58 transitions, 214 flow. Second operand has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 0 states have call successors, (0), 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 19:42:50,141 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:42:50,141 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:42:50,142 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:42:54,836 INFO L129 PetriNetUnfolder]: 22834/34084 cut-off events. [2021-04-28 19:42:54,836 INFO L130 PetriNetUnfolder]: For 5256/22418 co-relation queries the response was YES. [2021-04-28 19:42:55,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 71348 conditions, 34084 events. 22834/34084 cut-off events. For 5256/22418 co-relation queries the response was YES. Maximal size of possible extension queue 6648. Compared 303255 event pairs, 11962 based on Foata normal form. 698/10092 useless extension candidates. Maximal degree in co-relation 71330. Up to 21403 conditions per place. [2021-04-28 19:42:55,280 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 35 selfloop transitions, 33 changer transitions 0/102 dead transitions. [2021-04-28 19:42:55,281 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 102 transitions, 438 flow [2021-04-28 19:42:55,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 19:42:55,283 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 19:42:55,287 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1536 transitions. [2021-04-28 19:42:55,288 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7856777493606139 [2021-04-28 19:42:55,288 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1536 transitions. [2021-04-28 19:42:55,288 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1536 transitions. [2021-04-28 19:42:55,290 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:42:55,290 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1536 transitions. [2021-04-28 19:42:55,294 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 307.2) internal successors, (1536), 5 states have internal predecessors, (1536), 0 states have call successors, (0), 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 19:42:55,299 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 391.0) internal successors, (2346), 6 states have internal predecessors, (2346), 0 states have call successors, (0), 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 19:42:55,300 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 391.0) internal successors, (2346), 6 states have internal predecessors, (2346), 0 states have call successors, (0), 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 19:42:55,300 INFO L185 Difference]: Start difference. First operand has 69 places, 58 transitions, 214 flow. Second operand 5 states and 1536 transitions. [2021-04-28 19:42:55,300 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 102 transitions, 438 flow [2021-04-28 19:42:55,309 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 102 transitions, 430 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 19:42:55,313 INFO L241 Difference]: Finished difference. Result has 74 places, 89 transitions, 456 flow [2021-04-28 19:42:55,313 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=67, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=456, PETRI_PLACES=74, PETRI_TRANSITIONS=89} [2021-04-28 19:42:55,314 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -81 predicate places. [2021-04-28 19:42:55,317 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:42:55,317 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 89 transitions, 456 flow [2021-04-28 19:42:55,317 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 89 transitions, 456 flow [2021-04-28 19:42:55,318 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 89 transitions, 456 flow [2021-04-28 19:42:58,642 INFO L129 PetriNetUnfolder]: 19029/28360 cut-off events. [2021-04-28 19:42:58,642 INFO L130 PetriNetUnfolder]: For 11545/106075 co-relation queries the response was YES. [2021-04-28 19:42:58,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83683 conditions, 28360 events. 19029/28360 cut-off events. For 11545/106075 co-relation queries the response was YES. Maximal size of possible extension queue 4437. Compared 243510 event pairs, 10637 based on Foata normal form. 49/8801 useless extension candidates. Maximal degree in co-relation 83664. Up to 26054 conditions per place. [2021-04-28 19:42:59,202 INFO L146 LiptonReduction]: Number of co-enabled transitions 2746 [2021-04-28 19:42:59,234 INFO L158 LiptonReduction]: Checked pairs total: 1147 [2021-04-28 19:42:59,235 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:42:59,235 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3918 [2021-04-28 19:42:59,236 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 89 transitions, 456 flow [2021-04-28 19:42:59,237 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 294.75) internal successors, (1179), 4 states have internal predecessors, (1179), 0 states have call successors, (0), 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 19:42:59,237 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:42:59,237 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 19:42:59,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 19:42:59,238 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:42:59,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:42:59,238 INFO L82 PathProgramCache]: Analyzing trace with hash -1023683741, now seen corresponding path program 1 times [2021-04-28 19:42:59,238 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:42:59,238 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [291506352] [2021-04-28 19:42:59,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:42:59,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:42:59,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:59,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:42:59,381 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:59,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:42:59,394 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:42:59,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:42:59,425 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:42:59,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:42:59,426 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 19:42:59,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [291506352] [2021-04-28 19:42:59,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:42:59,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 19:42:59,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1208856215] [2021-04-28 19:42:59,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 19:42:59,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:42:59,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 19:42:59,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 19:42:59,432 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:42:59,434 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 89 transitions, 456 flow. Second operand has 5 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 0 states have call successors, (0), 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 19:42:59,434 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:42:59,434 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:42:59,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:04,208 INFO L129 PetriNetUnfolder]: 24700/38905 cut-off events. [2021-04-28 19:43:04,208 INFO L130 PetriNetUnfolder]: For 24185/865801 co-relation queries the response was YES. [2021-04-28 19:43:04,380 INFO L84 FinitePrefix]: Finished finitePrefix Result has 150926 conditions, 38905 events. 24700/38905 cut-off events. For 24185/865801 co-relation queries the response was YES. Maximal size of possible extension queue 8583. Compared 367565 event pairs, 4591 based on Foata normal form. 881/13119 useless extension candidates. Maximal degree in co-relation 150905. Up to 35306 conditions per place. [2021-04-28 19:43:04,535 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 36 selfloop transitions, 64 changer transitions 0/134 dead transitions. [2021-04-28 19:43:04,535 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 134 transitions, 905 flow [2021-04-28 19:43:04,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 19:43:04,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 19:43:04,544 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 2154 transitions. [2021-04-28 19:43:04,545 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7869930580928023 [2021-04-28 19:43:04,545 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 2154 transitions. [2021-04-28 19:43:04,545 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 2154 transitions. [2021-04-28 19:43:04,547 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:04,548 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 2154 transitions. [2021-04-28 19:43:04,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 307.7142857142857) internal successors, (2154), 7 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 19:43:04,559 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 391.0) internal successors, (3128), 8 states have internal predecessors, (3128), 0 states have call successors, (0), 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 19:43:04,561 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 391.0) internal successors, (3128), 8 states have internal predecessors, (3128), 0 states have call successors, (0), 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 19:43:04,561 INFO L185 Difference]: Start difference. First operand has 74 places, 89 transitions, 456 flow. Second operand 7 states and 2154 transitions. [2021-04-28 19:43:04,561 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 134 transitions, 905 flow [2021-04-28 19:43:04,660 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 134 transitions, 905 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 19:43:04,663 INFO L241 Difference]: Finished difference. Result has 83 places, 120 transitions, 902 flow [2021-04-28 19:43:04,663 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=456, PETRI_DIFFERENCE_MINUEND_PLACES=74, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=89, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=38, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=902, PETRI_PLACES=83, PETRI_TRANSITIONS=120} [2021-04-28 19:43:04,664 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -72 predicate places. [2021-04-28 19:43:04,664 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:04,664 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 120 transitions, 902 flow [2021-04-28 19:43:04,664 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 120 transitions, 902 flow [2021-04-28 19:43:04,666 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 120 transitions, 902 flow [2021-04-28 19:43:08,155 INFO L129 PetriNetUnfolder]: 20839/32725 cut-off events. [2021-04-28 19:43:08,155 INFO L130 PetriNetUnfolder]: For 95620/295344 co-relation queries the response was YES. [2021-04-28 19:43:08,329 INFO L84 FinitePrefix]: Finished finitePrefix Result has 155999 conditions, 32725 events. 20839/32725 cut-off events. For 95620/295344 co-relation queries the response was YES. Maximal size of possible extension queue 5390. Compared 306251 event pairs, 4521 based on Foata normal form. 89/10330 useless extension candidates. Maximal degree in co-relation 155975. Up to 30260 conditions per place. [2021-04-28 19:43:08,788 INFO L146 LiptonReduction]: Number of co-enabled transitions 3822 [2021-04-28 19:43:08,829 INFO L158 LiptonReduction]: Checked pairs total: 2127 [2021-04-28 19:43:08,830 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:08,830 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4166 [2021-04-28 19:43:08,831 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 120 transitions, 902 flow [2021-04-28 19:43:08,832 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 294.8) internal successors, (1474), 5 states have internal predecessors, (1474), 0 states have call successors, (0), 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 19:43:08,832 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:08,833 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] [2021-04-28 19:43:08,833 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 19:43:08,833 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:43:08,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:08,833 INFO L82 PathProgramCache]: Analyzing trace with hash -2012886723, now seen corresponding path program 1 times [2021-04-28 19:43:08,834 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:08,834 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1254390725] [2021-04-28 19:43:08,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:08,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:08,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:08,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:08,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:08,929 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:08,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:08,946 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:43:08,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:43:08,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:08,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:43:08,978 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 19:43:08,978 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1254390725] [2021-04-28 19:43:08,979 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:08,979 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 19:43:08,979 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1176876901] [2021-04-28 19:43:08,979 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 19:43:08,979 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:08,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 19:43:08,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 19:43:08,983 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:43:08,985 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 120 transitions, 902 flow. Second operand has 6 states, 6 states have (on average 294.8333333333333) internal successors, (1769), 6 states have internal predecessors, (1769), 0 states have call successors, (0), 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 19:43:08,985 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:08,985 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:43:08,985 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:14,529 INFO L129 PetriNetUnfolder]: 22693/38041 cut-off events. [2021-04-28 19:43:14,529 INFO L130 PetriNetUnfolder]: For 54612/1683104 co-relation queries the response was YES. [2021-04-28 19:43:14,738 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216386 conditions, 38041 events. 22693/38041 cut-off events. For 54612/1683104 co-relation queries the response was YES. Maximal size of possible extension queue 8745. Compared 385335 event pairs, 703 based on Foata normal form. 937/12399 useless extension candidates. Maximal degree in co-relation 216360. Up to 35513 conditions per place. [2021-04-28 19:43:14,912 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 24 selfloop transitions, 95 changer transitions 12/165 dead transitions. [2021-04-28 19:43:14,912 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 165 transitions, 1561 flow [2021-04-28 19:43:14,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 19:43:14,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 19:43:14,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2772 transitions. [2021-04-28 19:43:14,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7877237851662404 [2021-04-28 19:43:14,924 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2772 transitions. [2021-04-28 19:43:14,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2772 transitions. [2021-04-28 19:43:14,927 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:14,927 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2772 transitions. [2021-04-28 19:43:14,934 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 308.0) internal successors, (2772), 9 states have internal predecessors, (2772), 0 states have call successors, (0), 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 19:43:14,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 391.0) internal successors, (3910), 10 states have internal predecessors, (3910), 0 states have call successors, (0), 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 19:43:14,945 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 391.0) internal successors, (3910), 10 states have internal predecessors, (3910), 0 states have call successors, (0), 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 19:43:14,945 INFO L185 Difference]: Start difference. First operand has 83 places, 120 transitions, 902 flow. Second operand 9 states and 2772 transitions. [2021-04-28 19:43:14,945 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 165 transitions, 1561 flow [2021-04-28 19:43:17,373 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 165 transitions, 1398 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 19:43:17,378 INFO L241 Difference]: Finished difference. Result has 91 places, 150 transitions, 1317 flow [2021-04-28 19:43:17,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=727, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1317, PETRI_PLACES=91, PETRI_TRANSITIONS=150} [2021-04-28 19:43:17,379 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -64 predicate places. [2021-04-28 19:43:17,379 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:43:17,380 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 91 places, 150 transitions, 1317 flow [2021-04-28 19:43:17,380 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 91 places, 150 transitions, 1317 flow [2021-04-28 19:43:17,382 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 91 places, 150 transitions, 1317 flow [2021-04-28 19:43:20,320 INFO L129 PetriNetUnfolder]: 14750/26177 cut-off events. [2021-04-28 19:43:20,320 INFO L130 PetriNetUnfolder]: For 153547/297027 co-relation queries the response was YES. [2021-04-28 19:43:20,482 INFO L84 FinitePrefix]: Finished finitePrefix Result has 153061 conditions, 26177 events. 14750/26177 cut-off events. For 153547/297027 co-relation queries the response was YES. Maximal size of possible extension queue 5355. Compared 281634 event pairs, 792 based on Foata normal form. 37/7886 useless extension candidates. Maximal degree in co-relation 153034. Up to 20935 conditions per place. [2021-04-28 19:43:20,949 INFO L146 LiptonReduction]: Number of co-enabled transitions 4334 [2021-04-28 19:43:21,004 INFO L158 LiptonReduction]: Checked pairs total: 3169 [2021-04-28 19:43:21,004 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:43:21,005 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3626 [2021-04-28 19:43:21,006 INFO L480 AbstractCegarLoop]: Abstraction has has 91 places, 150 transitions, 1317 flow [2021-04-28 19:43:21,007 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 294.8333333333333) internal successors, (1769), 6 states have internal predecessors, (1769), 0 states have call successors, (0), 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 19:43:21,007 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:43:21,007 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, 1] [2021-04-28 19:43:21,007 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 19:43:21,007 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:43:21,008 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:43:21,008 INFO L82 PathProgramCache]: Analyzing trace with hash 1448481211, now seen corresponding path program 1 times [2021-04-28 19:43:21,008 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:43:21,008 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2123628296] [2021-04-28 19:43:21,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:43:21,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:43:21,095 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:21,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:21,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:21,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:21,116 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:21,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:21,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:21,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:43:21,149 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 19:43:21,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 19:43:21,183 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:43:21,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:43:21,185 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 19:43:21,185 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2123628296] [2021-04-28 19:43:21,185 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:43:21,186 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 19:43:21,186 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124649227] [2021-04-28 19:43:21,186 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 19:43:21,186 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:43:21,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 19:43:21,187 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 19:43:21,190 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 294 out of 391 [2021-04-28 19:43:21,192 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 91 places, 150 transitions, 1317 flow. Second operand has 7 states, 7 states have (on average 294.85714285714283) internal successors, (2064), 7 states have internal predecessors, (2064), 0 states have call successors, (0), 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 19:43:21,192 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:43:21,193 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 294 of 391 [2021-04-28 19:43:21,193 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:43:26,673 INFO L129 PetriNetUnfolder]: 16672/30292 cut-off events. [2021-04-28 19:43:26,673 INFO L130 PetriNetUnfolder]: For 102873/2193332 co-relation queries the response was YES. [2021-04-28 19:43:26,869 INFO L84 FinitePrefix]: Finished finitePrefix Result has 203069 conditions, 30292 events. 16672/30292 cut-off events. For 102873/2193332 co-relation queries the response was YES. Maximal size of possible extension queue 7554. Compared 327377 event pairs, 1 based on Foata normal form. 659/9178 useless extension candidates. Maximal degree in co-relation 203040. Up to 23833 conditions per place. [2021-04-28 19:43:27,037 INFO L132 encePairwiseOnDemand]: 371/391 looper letters, 6 selfloop transitions, 113 changer transitions 20/173 dead transitions. [2021-04-28 19:43:27,037 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 173 transitions, 1805 flow [2021-04-28 19:43:27,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 19:43:27,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 19:43:27,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 3366 transitions. [2021-04-28 19:43:27,061 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.782608695652174 [2021-04-28 19:43:27,061 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 3366 transitions. [2021-04-28 19:43:27,062 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 3366 transitions. [2021-04-28 19:43:27,065 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:43:27,065 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 3366 transitions. [2021-04-28 19:43:27,083 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 306.0) internal successors, (3366), 11 states have internal predecessors, (3366), 0 states have call successors, (0), 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 19:43:27,102 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 391.0) internal successors, (4692), 12 states have internal predecessors, (4692), 0 states have call successors, (0), 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 19:43:27,105 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 391.0) internal successors, (4692), 12 states have internal predecessors, (4692), 0 states have call successors, (0), 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 19:43:27,105 INFO L185 Difference]: Start difference. First operand has 91 places, 150 transitions, 1317 flow. Second operand 11 states and 3366 transitions. [2021-04-28 19:43:27,105 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 173 transitions, 1805 flow [2021-04-28 19:44:12,632 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 173 transitions, 1450 flow, removed 116 selfloop flow, removed 7 redundant places. [2021-04-28 19:44:12,635 INFO L241 Difference]: Finished difference. Result has 97 places, 150 transitions, 1245 flow [2021-04-28 19:44:12,636 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=963, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1245, PETRI_PLACES=97, PETRI_TRANSITIONS=150} [2021-04-28 19:44:12,636 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -58 predicate places. [2021-04-28 19:44:12,636 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:44:12,636 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 150 transitions, 1245 flow [2021-04-28 19:44:12,637 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 150 transitions, 1245 flow [2021-04-28 19:44:12,638 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 95 places, 150 transitions, 1245 flow [2021-04-28 19:44:14,637 INFO L129 PetriNetUnfolder]: 11861/22046 cut-off events. [2021-04-28 19:44:14,637 INFO L130 PetriNetUnfolder]: For 59171/125677 co-relation queries the response was YES. [2021-04-28 19:44:14,754 INFO L84 FinitePrefix]: Finished finitePrefix Result has 98101 conditions, 22046 events. 11861/22046 cut-off events. For 59171/125677 co-relation queries the response was YES. Maximal size of possible extension queue 5307. Compared 247481 event pairs, 3 based on Foata normal form. 6/6325 useless extension candidates. Maximal degree in co-relation 98073. Up to 13824 conditions per place. [2021-04-28 19:44:14,945 INFO L146 LiptonReduction]: Number of co-enabled transitions 4238 [2021-04-28 19:44:15,145 INFO L158 LiptonReduction]: Checked pairs total: 3287 [2021-04-28 19:44:15,145 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:44:15,145 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 2509 [2021-04-28 19:44:15,147 INFO L480 AbstractCegarLoop]: Abstraction has has 95 places, 150 transitions, 1245 flow [2021-04-28 19:44:15,147 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 294.85714285714283) internal successors, (2064), 7 states have internal predecessors, (2064), 0 states have call successors, (0), 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 19:44:15,148 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:44:15,148 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, 1, 1, 1, 1, 1] [2021-04-28 19:44:15,148 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 19:44:15,148 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:44:15,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:44:15,148 INFO L82 PathProgramCache]: Analyzing trace with hash 33797999, now seen corresponding path program 1 times [2021-04-28 19:44:15,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:44:15,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941739822] [2021-04-28 19:44:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:44:15,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:44:15,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:15,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:44:15,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:15,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:44:15,222 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:44:15,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:44:15,231 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 19:44:15,232 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941739822] [2021-04-28 19:44:15,232 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:44:15,232 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:44:15,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549945154] [2021-04-28 19:44:15,232 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:44:15,232 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:44:15,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:44:15,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:44:15,235 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 264 out of 391 [2021-04-28 19:44:15,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 95 places, 150 transitions, 1245 flow. Second operand has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 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 19:44:15,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:44:15,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 264 of 391 [2021-04-28 19:44:15,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:44:20,279 INFO L129 PetriNetUnfolder]: 27161/50582 cut-off events. [2021-04-28 19:44:20,279 INFO L130 PetriNetUnfolder]: For 616637/1554924 co-relation queries the response was YES. [2021-04-28 19:44:20,680 INFO L84 FinitePrefix]: Finished finitePrefix Result has 225586 conditions, 50582 events. 27161/50582 cut-off events. For 616637/1554924 co-relation queries the response was YES. Maximal size of possible extension queue 13524. Compared 604316 event pairs, 2 based on Foata normal form. 95/12746 useless extension candidates. Maximal degree in co-relation 225556. Up to 31104 conditions per place. [2021-04-28 19:44:20,953 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 3 selfloop transitions, 2 changer transitions 0/151 dead transitions. [2021-04-28 19:44:20,953 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 151 transitions, 1257 flow [2021-04-28 19:44:20,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:44:20,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:44:20,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1062 transitions. [2021-04-28 19:44:20,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6790281329923273 [2021-04-28 19:44:20,961 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1062 transitions. [2021-04-28 19:44:20,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1062 transitions. [2021-04-28 19:44:20,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:44:20,963 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1062 transitions. [2021-04-28 19:44:20,966 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 265.5) internal successors, (1062), 4 states have internal predecessors, (1062), 0 states have call successors, (0), 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 19:44:20,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:44:20,970 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:44:20,971 INFO L185 Difference]: Start difference. First operand has 95 places, 150 transitions, 1245 flow. Second operand 4 states and 1062 transitions. [2021-04-28 19:44:20,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 151 transitions, 1257 flow [2021-04-28 19:48:03,075 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 88 places, 151 transitions, 894 flow, removed 80 selfloop flow, removed 10 redundant places. [2021-04-28 19:48:03,078 INFO L241 Difference]: Finished difference. Result has 90 places, 151 transitions, 895 flow [2021-04-28 19:48:03,078 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=391, PETRI_DIFFERENCE_MINUEND_FLOW=882, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=150, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=148, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=895, PETRI_PLACES=90, PETRI_TRANSITIONS=151} [2021-04-28 19:48:03,079 INFO L343 CegarLoopForPetriNet]: 155 programPoint places, -65 predicate places. [2021-04-28 19:48:03,079 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 19:48:03,079 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 90 places, 151 transitions, 895 flow [2021-04-28 19:48:03,079 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 90 places, 151 transitions, 895 flow [2021-04-28 19:48:03,080 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 90 places, 151 transitions, 895 flow [2021-04-28 19:48:06,476 INFO L129 PetriNetUnfolder]: 23569/43432 cut-off events. [2021-04-28 19:48:06,477 INFO L130 PetriNetUnfolder]: For 28597/35694 co-relation queries the response was YES. [2021-04-28 19:48:06,793 INFO L84 FinitePrefix]: Finished finitePrefix Result has 166950 conditions, 43432 events. 23569/43432 cut-off events. For 28597/35694 co-relation queries the response was YES. Maximal size of possible extension queue 9464. Compared 519573 event pairs, 6 based on Foata normal form. 10/11696 useless extension candidates. Maximal degree in co-relation 166924. Up to 27648 conditions per place. [2021-04-28 19:48:07,334 INFO L146 LiptonReduction]: Number of co-enabled transitions 4362 [2021-04-28 19:48:07,736 INFO L158 LiptonReduction]: Checked pairs total: 734 [2021-04-28 19:48:07,736 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 19:48:07,736 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4657 [2021-04-28 19:48:07,737 INFO L480 AbstractCegarLoop]: Abstraction has has 90 places, 151 transitions, 895 flow [2021-04-28 19:48:07,738 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 265.0) internal successors, (1060), 4 states have internal predecessors, (1060), 0 states have call successors, (0), 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 19:48:07,738 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 19:48:07,738 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, 1, 1, 1, 1, 1] [2021-04-28 19:48:07,738 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 19:48:07,738 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-04-28 19:48:07,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 19:48:07,739 INFO L82 PathProgramCache]: Analyzing trace with hash 1507793136, now seen corresponding path program 1 times [2021-04-28 19:48:07,739 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 19:48:07,739 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238391223] [2021-04-28 19:48:07,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 19:48:07,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 19:48:07,810 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:07,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 19:48:07,812 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:07,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:48:07,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 19:48:07,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 19:48:07,830 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 19:48:07,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238391223] [2021-04-28 19:48:07,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 19:48:07,831 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 19:48:07,831 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952343324] [2021-04-28 19:48:07,831 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 19:48:07,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 19:48:07,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 19:48:07,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 19:48:07,834 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 269 out of 391 [2021-04-28 19:48:07,835 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 90 places, 151 transitions, 895 flow. Second operand has 4 states, 4 states have (on average 270.0) internal successors, (1080), 4 states have internal predecessors, (1080), 0 states have call successors, (0), 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 19:48:07,835 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 19:48:07,835 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 269 of 391 [2021-04-28 19:48:07,835 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 19:48:20,638 INFO L129 PetriNetUnfolder]: 52927/98459 cut-off events. [2021-04-28 19:48:20,638 INFO L130 PetriNetUnfolder]: For 75401/350685 co-relation queries the response was YES. [2021-04-28 19:48:21,494 INFO L84 FinitePrefix]: Finished finitePrefix Result has 378548 conditions, 98459 events. 52927/98459 cut-off events. For 75401/350685 co-relation queries the response was YES. Maximal size of possible extension queue 23472. Compared 1255367 event pairs, 6 based on Foata normal form. 109/24976 useless extension candidates. Maximal degree in co-relation 378520. Up to 60480 conditions per place. [2021-04-28 19:48:21,755 INFO L132 encePairwiseOnDemand]: 388/391 looper letters, 3 selfloop transitions, 2 changer transitions 0/152 dead transitions. [2021-04-28 19:48:21,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 152 transitions, 907 flow [2021-04-28 19:48:21,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 19:48:21,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 19:48:21,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 1082 transitions. [2021-04-28 19:48:21,762 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6918158567774936 [2021-04-28 19:48:21,762 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 1082 transitions. [2021-04-28 19:48:21,762 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 1082 transitions. [2021-04-28 19:48:21,763 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 19:48:21,763 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 1082 transitions. [2021-04-28 19:48:21,766 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 270.5) internal successors, (1082), 4 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 19:48:21,768 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:48:21,769 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 391.0) internal successors, (1955), 5 states have internal predecessors, (1955), 0 states have call successors, (0), 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 19:48:21,769 INFO L185 Difference]: Start difference. First operand has 90 places, 151 transitions, 895 flow. Second operand 4 states and 1082 transitions. [2021-04-28 19:48:21,769 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 152 transitions, 907 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown