/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/mix053_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-6f4246e9f5583d222ebb38ff8175c901f3a528f0-6f4246e [2021-04-28 22:09:52,659 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-04-28 22:09:52,663 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-04-28 22:09:52,696 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-04-28 22:09:52,697 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-04-28 22:09:52,699 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-04-28 22:09:52,700 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-04-28 22:09:52,703 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-04-28 22:09:52,705 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-04-28 22:09:52,706 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-04-28 22:09:52,707 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-04-28 22:09:52,708 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-04-28 22:09:52,709 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-04-28 22:09:52,710 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-04-28 22:09:52,712 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-04-28 22:09:52,713 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-04-28 22:09:52,714 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-04-28 22:09:52,715 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-04-28 22:09:52,717 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-04-28 22:09:52,719 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-04-28 22:09:52,721 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-04-28 22:09:52,722 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-04-28 22:09:52,724 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-04-28 22:09:52,725 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-04-28 22:09:52,728 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-04-28 22:09:52,732 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-04-28 22:09:52,733 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-04-28 22:09:52,734 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-04-28 22:09:52,735 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-04-28 22:09:52,736 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-04-28 22:09:52,737 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-04-28 22:09:52,738 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-04-28 22:09:52,738 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-04-28 22:09:52,738 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-04-28 22:09:52,739 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-04-28 22:09:52,740 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-04-28 22:09:52,741 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-RepeatedSemanticLbeWithPredicates.epf [2021-04-28 22:09:52,768 INFO L113 SettingsManager]: Loading preferences was successful [2021-04-28 22:09:52,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-04-28 22:09:52,770 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-04-28 22:09:52,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-04-28 22:09:52,771 INFO L138 SettingsManager]: * Use SBE=true [2021-04-28 22:09:52,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-04-28 22:09:52,772 INFO L138 SettingsManager]: * sizeof long=4 [2021-04-28 22:09:52,772 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-04-28 22:09:52,772 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-04-28 22:09:52,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-04-28 22:09:52,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-04-28 22:09:52,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-04-28 22:09:52,774 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-04-28 22:09:52,774 INFO L138 SettingsManager]: * sizeof long double=12 [2021-04-28 22:09:52,774 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-04-28 22:09:52,774 INFO L138 SettingsManager]: * Use constant arrays=true [2021-04-28 22:09:52,775 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-04-28 22:09:52,775 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-04-28 22:09:52,775 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-04-28 22:09:52,775 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-04-28 22:09:52,776 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-04-28 22:09:52,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:09:52,776 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-04-28 22:09:52,777 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-04-28 22:09:52,777 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-04-28 22:09:52,777 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-04-28 22:09:52,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-04-28 22:09:52,778 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=SEMANTIC_BASED_MOVER_CHECK_WITH_PREDICATES [2021-04-28 22:09:52,778 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-04-28 22:09:52,778 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-04-28 22:09:52,778 INFO L138 SettingsManager]: * Apply repeated Lipton Reduction=true WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-04-28 22:09:53,122 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-04-28 22:09:53,147 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-04-28 22:09:53,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-04-28 22:09:53,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-04-28 22:09:53,152 INFO L275 PluginConnector]: CDTParser initialized [2021-04-28 22:09:53,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix053_tso.oepc.i [2021-04-28 22:09:53,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31af8ed7f/b9e83cc0a9ea46d1bc64f91314899e5a/FLAG2a01c671e [2021-04-28 22:09:53,909 INFO L306 CDTParser]: Found 1 translation units. [2021-04-28 22:09:53,909 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix053_tso.oepc.i [2021-04-28 22:09:53,924 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31af8ed7f/b9e83cc0a9ea46d1bc64f91314899e5a/FLAG2a01c671e [2021-04-28 22:09:54,125 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31af8ed7f/b9e83cc0a9ea46d1bc64f91314899e5a [2021-04-28 22:09:54,128 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-04-28 22:09:54,182 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-04-28 22:09:54,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-04-28 22:09:54,185 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-04-28 22:09:54,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-04-28 22:09:54,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:54,190 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b5e30b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54, skipping insertion in model container [2021-04-28 22:09:54,191 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:54,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-04-28 22:09:54,271 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-04-28 22:09:54,493 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/mix053_tso.oepc.i[949,962] [2021-04-28 22:09:54,768 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:09:54,788 INFO L203 MainTranslator]: Completed pre-run [2021-04-28 22:09:54,802 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/mix053_tso.oepc.i[949,962] [2021-04-28 22:09:54,846 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-04-28 22:09:54,925 INFO L208 MainTranslator]: Completed translation [2021-04-28 22:09:54,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54 WrapperNode [2021-04-28 22:09:54,926 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-04-28 22:09:54,927 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-04-28 22:09:54,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-04-28 22:09:54,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-04-28 22:09:54,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:54,955 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:54,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-04-28 22:09:54,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-04-28 22:09:54,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-04-28 22:09:54,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-04-28 22:09:55,011 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:55,011 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:55,016 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:55,017 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:55,027 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:55,032 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:55,036 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... [2021-04-28 22:09:55,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-04-28 22:09:55,043 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-04-28 22:09:55,043 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-04-28 22:09:55,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-04-28 22:09:55,044 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-04-28 22:09:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-04-28 22:09:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-04-28 22:09:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-04-28 22:09:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-04-28 22:09:55,152 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-04-28 22:09:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-04-28 22:09:55,153 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-04-28 22:09:55,153 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-04-28 22:09:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-04-28 22:09:55,158 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-04-28 22:09:55,158 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2021-04-28 22:09:55,159 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2021-04-28 22:09:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-04-28 22:09:55,159 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-04-28 22:09:55,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-04-28 22:09:55,160 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-04-28 22:09:55,162 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-04-28 22:09:57,039 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-04-28 22:09:57,039 INFO L299 CfgBuilder]: Removed 10 assume(true) statements. [2021-04-28 22:09:57,041 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:09:57 BoogieIcfgContainer [2021-04-28 22:09:57,041 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-04-28 22:09:57,043 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-04-28 22:09:57,043 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-04-28 22:09:57,046 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-04-28 22:09:57,047 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.04 10:09:54" (1/3) ... [2021-04-28 22:09:57,047 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e1b538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:09:57, skipping insertion in model container [2021-04-28 22:09:57,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.04 10:09:54" (2/3) ... [2021-04-28 22:09:57,048 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42e1b538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.04 10:09:57, skipping insertion in model container [2021-04-28 22:09:57,048 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.04 10:09:57" (3/3) ... [2021-04-28 22:09:57,050 INFO L111 eAbstractionObserver]: Analyzing ICFG mix053_tso.oepc.i [2021-04-28 22:09:57,057 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-04-28 22:09:57,062 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2021-04-28 22:09:57,063 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-04-28 22:09:57,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,100 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,100 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,101 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,103 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,103 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,104 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,104 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,105 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,106 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,107 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,108 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,108 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,109 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,109 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,109 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,110 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,110 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,111 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,111 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,112 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,114 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,115 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,116 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,116 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,116 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,117 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,117 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,117 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,118 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,119 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,120 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,121 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,123 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,123 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,124 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,125 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,125 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,125 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,127 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,128 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,128 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,128 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,128 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,128 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,128 WARN L313 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,129 WARN L313 ript$VariableManager]: TermVariabe P3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,130 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,130 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,132 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,132 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,132 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,133 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,134 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork3_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-04-28 22:09:57,135 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-04-28 22:09:57,157 INFO L253 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-04-28 22:09:57,182 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-04-28 22:09:57,182 INFO L377 AbstractCegarLoop]: Hoare is false [2021-04-28 22:09:57,183 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-04-28 22:09:57,183 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-04-28 22:09:57,183 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-04-28 22:09:57,183 INFO L381 AbstractCegarLoop]: Difference is false [2021-04-28 22:09:57,183 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-04-28 22:09:57,183 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-04-28 22:09:57,197 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 125 places, 114 transitions, 248 flow [2021-04-28 22:09:57,247 INFO L129 PetriNetUnfolder]: 2/110 cut-off events. [2021-04-28 22:09:57,247 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:57,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 22:09:57,253 INFO L82 GeneralOperation]: Start removeDead. Operand has 125 places, 114 transitions, 248 flow [2021-04-28 22:09:57,259 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 121 places, 110 transitions, 232 flow [2021-04-28 22:09:57,260 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:09:57,276 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 121 places, 110 transitions, 232 flow [2021-04-28 22:09:57,280 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 121 places, 110 transitions, 232 flow [2021-04-28 22:09:57,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 121 places, 110 transitions, 232 flow [2021-04-28 22:09:57,309 INFO L129 PetriNetUnfolder]: 2/110 cut-off events. [2021-04-28 22:09:57,310 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:09:57,311 INFO L84 FinitePrefix]: Finished finitePrefix Result has 123 conditions, 110 events. 2/110 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 81 event pairs, 0 based on Foata normal form. 0/106 useless extension candidates. Maximal degree in co-relation 75. Up to 2 conditions per place. [2021-04-28 22:09:57,315 INFO L146 LiptonReduction]: Number of co-enabled transitions 2530 [2021-04-28 22:10:01,554 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:10:02,032 WARN L205 SmtUtils]: Spent 475.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:10:04,183 WARN L205 SmtUtils]: Spent 2.15 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:10:05,255 WARN L205 SmtUtils]: Spent 1.07 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:10:05,770 WARN L205 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-04-28 22:10:05,902 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 59 [2021-04-28 22:10:06,479 WARN L205 SmtUtils]: Spent 575.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 86 [2021-04-28 22:10:06,704 WARN L205 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 83 [2021-04-28 22:10:09,802 WARN L205 SmtUtils]: Spent 1.10 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 22:10:10,329 WARN L205 SmtUtils]: Spent 522.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:10:12,713 WARN L205 SmtUtils]: Spent 2.38 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-04-28 22:10:13,767 WARN L205 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 22:10:14,890 WARN L205 SmtUtils]: Spent 1.12 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:10:15,444 WARN L205 SmtUtils]: Spent 550.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:10:17,953 WARN L205 SmtUtils]: Spent 2.51 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:10:19,014 WARN L205 SmtUtils]: Spent 1.06 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:10:20,783 WARN L205 SmtUtils]: Spent 1.76 s on a formula simplification. DAG size of input: 232 DAG size of output: 191 [2021-04-28 22:10:21,333 WARN L205 SmtUtils]: Spent 546.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:10:23,983 WARN L205 SmtUtils]: Spent 2.65 s on a formula simplification. DAG size of input: 316 DAG size of output: 271 [2021-04-28 22:10:25,067 WARN L205 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:10:27,644 WARN L205 SmtUtils]: Spent 1.29 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:10:28,238 WARN L205 SmtUtils]: Spent 591.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:10:31,002 WARN L205 SmtUtils]: Spent 2.76 s on a formula simplification. DAG size of input: 315 DAG size of output: 270 [2021-04-28 22:10:32,203 WARN L205 SmtUtils]: Spent 1.20 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:10:33,624 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification. DAG size of input: 231 DAG size of output: 190 [2021-04-28 22:10:34,239 WARN L205 SmtUtils]: Spent 612.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:10:36,933 WARN L205 SmtUtils]: Spent 2.69 s on a formula simplification. DAG size of input: 316 DAG size of output: 271 [2021-04-28 22:10:38,190 WARN L205 SmtUtils]: Spent 1.25 s on a formula simplification that was a NOOP. DAG size: 268 [2021-04-28 22:10:39,598 WARN L205 SmtUtils]: Spent 1.40 s on a formula simplification. DAG size of input: 228 DAG size of output: 188 [2021-04-28 22:10:40,236 WARN L205 SmtUtils]: Spent 634.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2021-04-28 22:10:43,228 WARN L205 SmtUtils]: Spent 2.99 s on a formula simplification. DAG size of input: 312 DAG size of output: 268 [2021-04-28 22:10:44,579 WARN L205 SmtUtils]: Spent 1.35 s on a formula simplification that was a NOOP. DAG size: 265 [2021-04-28 22:10:46,787 WARN L205 SmtUtils]: Spent 2.20 s on a formula simplification. DAG size of input: 230 DAG size of output: 189 [2021-04-28 22:10:47,454 WARN L205 SmtUtils]: Spent 664.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2021-04-28 22:10:50,599 WARN L205 SmtUtils]: Spent 3.14 s on a formula simplification. DAG size of input: 314 DAG size of output: 270 [2021-04-28 22:10:52,056 WARN L205 SmtUtils]: Spent 1.45 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:10:55,657 WARN L205 SmtUtils]: Spent 1.61 s on a formula simplification. DAG size of input: 231 DAG size of output: 191 [2021-04-28 22:10:56,390 WARN L205 SmtUtils]: Spent 728.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2021-04-28 22:10:59,621 WARN L205 SmtUtils]: Spent 3.23 s on a formula simplification. DAG size of input: 315 DAG size of output: 270 [2021-04-28 22:11:01,045 WARN L205 SmtUtils]: Spent 1.42 s on a formula simplification that was a NOOP. DAG size: 267 [2021-04-28 22:11:02,756 WARN L205 SmtUtils]: Spent 1.70 s on a formula simplification. DAG size of input: 230 DAG size of output: 190 [2021-04-28 22:11:03,517 WARN L205 SmtUtils]: Spent 759.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2021-04-28 22:11:06,967 WARN L205 SmtUtils]: Spent 3.45 s on a formula simplification. DAG size of input: 314 DAG size of output: 269 [2021-04-28 22:11:08,480 WARN L205 SmtUtils]: Spent 1.51 s on a formula simplification that was a NOOP. DAG size: 266 [2021-04-28 22:11:11,089 WARN L205 SmtUtils]: Spent 2.60 s on a formula simplification. DAG size of input: 228 DAG size of output: 187 [2021-04-28 22:11:11,889 WARN L205 SmtUtils]: Spent 797.00 ms on a formula simplification that was a NOOP. DAG size: 185 [2021-04-28 22:11:15,557 WARN L205 SmtUtils]: Spent 3.66 s on a formula simplification. DAG size of input: 312 DAG size of output: 267 [2021-04-28 22:11:17,254 WARN L205 SmtUtils]: Spent 1.69 s on a formula simplification that was a NOOP. DAG size: 264 [2021-04-28 22:11:20,213 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:20,317 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:20,422 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:20,526 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:20,641 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:20,755 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:20,868 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:20,990 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:21,272 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 50 [2021-04-28 22:11:22,027 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:11:22,131 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:11:22,251 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:22,375 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:22,489 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:22,600 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:22,734 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:11:22,870 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:11:22,999 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:11:23,131 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 62 [2021-04-28 22:11:23,257 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:23,384 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:23,516 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:23,656 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:23,763 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 52 [2021-04-28 22:11:24,902 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:25,005 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:25,108 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:25,211 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 54 [2021-04-28 22:11:26,750 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:11:26,946 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:11:27,138 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:11:27,331 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 85 [2021-04-28 22:11:27,445 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:27,557 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:27,669 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:27,782 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 58 [2021-04-28 22:11:27,901 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:28,019 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:28,137 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:28,255 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:28,668 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:28,785 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:28,911 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:29,029 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:29,208 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:11:29,386 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:11:29,564 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:11:29,738 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 79 [2021-04-28 22:11:29,856 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:29,974 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:30,092 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:30,210 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:30,318 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:30,425 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:30,532 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:30,639 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 56 [2021-04-28 22:11:30,766 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:30,884 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:31,002 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:31,119 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 60 [2021-04-28 22:11:31,268 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:11:31,412 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:11:31,556 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:11:31,701 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification that was a NOOP. DAG size: 64 [2021-04-28 22:11:31,856 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:11:32,015 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:11:32,171 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:11:32,325 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 68 [2021-04-28 22:11:32,486 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:32,643 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:32,814 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:32,975 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:33,137 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:33,294 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:33,459 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:33,626 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 70 [2021-04-28 22:11:33,799 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:11:33,962 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:11:34,130 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:11:34,302 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2021-04-28 22:11:34,449 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:11:34,594 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:11:34,743 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:11:34,895 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 66 [2021-04-28 22:11:35,073 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:11:35,249 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:11:35,434 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:11:35,619 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2021-04-28 22:11:35,795 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:11:35,962 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:11:36,141 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:11:36,318 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2021-04-28 22:11:36,528 WARN L205 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:11:36,722 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:11:36,915 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:11:37,109 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 78 [2021-04-28 22:11:37,427 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:37,729 WARN L205 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:38,004 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:38,284 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:38,560 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:11:38,838 WARN L205 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:11:39,114 WARN L205 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:11:39,404 WARN L205 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 100 [2021-04-28 22:11:39,661 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:11:39,918 WARN L205 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:11:40,187 WARN L205 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:11:40,458 WARN L205 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 98 [2021-04-28 22:11:40,746 WARN L205 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:41,040 WARN L205 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:41,337 WARN L205 SmtUtils]: Spent 295.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:41,624 WARN L205 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:41,831 WARN L205 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:11:42,033 WARN L205 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:11:42,244 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:11:42,454 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 82 [2021-04-28 22:11:42,696 WARN L205 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:42,940 WARN L205 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:43,180 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:43,425 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:44,241 WARN L205 SmtUtils]: Spent 813.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:11:44,634 WARN L205 SmtUtils]: Spent 391.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:11:45,414 WARN L205 SmtUtils]: Spent 778.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 115 [2021-04-28 22:11:45,799 WARN L205 SmtUtils]: Spent 382.00 ms on a formula simplification that was a NOOP. DAG size: 111 [2021-04-28 22:11:46,052 WARN L205 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:11:46,308 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:11:46,554 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:11:46,795 WARN L205 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2021-04-28 22:11:47,055 WARN L205 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:11:47,317 WARN L205 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:11:47,582 WARN L205 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:11:47,838 WARN L205 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 94 [2021-04-28 22:11:48,050 WARN L205 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:11:48,257 WARN L205 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:11:48,476 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:11:48,695 WARN L205 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 80 [2021-04-28 22:11:48,937 WARN L205 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:49,183 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:49,426 WARN L205 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:49,664 WARN L205 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2021-04-28 22:11:49,919 WARN L205 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:11:50,173 WARN L205 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:11:50,443 WARN L205 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:11:50,711 WARN L205 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 92 [2021-04-28 22:11:50,938 WARN L205 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:11:51,173 WARN L205 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:11:51,409 WARN L205 SmtUtils]: Spent 235.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:11:51,640 WARN L205 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 84 [2021-04-28 22:11:51,913 WARN L205 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:11:52,186 WARN L205 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:11:52,463 WARN L205 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:11:52,741 WARN L205 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2021-04-28 22:11:53,601 WARN L205 SmtUtils]: Spent 857.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:11:54,011 WARN L205 SmtUtils]: Spent 407.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:11:54,846 WARN L205 SmtUtils]: Spent 832.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 120 [2021-04-28 22:11:55,243 WARN L205 SmtUtils]: Spent 395.00 ms on a formula simplification that was a NOOP. DAG size: 116 [2021-04-28 22:11:55,552 WARN L205 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:55,862 WARN L205 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:56,146 WARN L205 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:56,437 WARN L205 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:56,719 WARN L205 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:57,014 WARN L205 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:57,321 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:57,627 WARN L205 SmtUtils]: Spent 305.00 ms on a formula simplification that was a NOOP. DAG size: 102 [2021-04-28 22:11:57,684 INFO L158 LiptonReduction]: Checked pairs total: 21709 [2021-04-28 22:11:57,684 INFO L160 LiptonReduction]: Total number of compositions: 230 [2021-04-28 22:11:57,688 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 120429 [2021-04-28 22:11:57,711 INFO L129 PetriNetUnfolder]: 0/73 cut-off events. [2021-04-28 22:11:57,712 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:11:57,712 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:11:57,713 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:11:57,713 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 22:11:57,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:11:57,719 INFO L82 PathProgramCache]: Analyzing trace with hash -726387924, now seen corresponding path program 1 times [2021-04-28 22:11:57,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:11:57,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [265826040] [2021-04-28 22:11:57,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:11:57,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:11:58,014 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:11:58,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:11:58,027 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:11:58,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [265826040] [2021-04-28 22:11:58,028 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:11:58,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:11:58,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144645863] [2021-04-28 22:11:58,038 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:11:58,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:11:58,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:11:58,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:11:58,057 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 265 out of 344 [2021-04-28 22:11:58,062 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 142 places, 131 transitions, 274 flow. Second operand has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:58,063 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:11:58,063 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 265 of 344 [2021-04-28 22:11:58,064 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:11:58,641 INFO L129 PetriNetUnfolder]: 329/784 cut-off events. [2021-04-28 22:11:58,641 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:11:58,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1341 conditions, 784 events. 329/784 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 5606 event pairs, 195 based on Foata normal form. 11/414 useless extension candidates. Maximal degree in co-relation 1272. Up to 401 conditions per place. [2021-04-28 22:11:58,650 INFO L132 encePairwiseOnDemand]: 327/344 looper letters, 9 selfloop transitions, 2 changer transitions 91/144 dead transitions. [2021-04-28 22:11:58,650 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 141 places, 144 transitions, 398 flow [2021-04-28 22:11:58,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:11:58,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:11:58,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 847 transitions. [2021-04-28 22:11:58,672 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8207364341085271 [2021-04-28 22:11:58,673 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 847 transitions. [2021-04-28 22:11:58,673 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 847 transitions. [2021-04-28 22:11:58,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:11:58,679 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 847 transitions. [2021-04-28 22:11:58,685 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 282.3333333333333) internal successors, (847), 3 states have internal predecessors, (847), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:58,694 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 344.0) internal successors, (1376), 4 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:58,696 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 344.0) internal successors, (1376), 4 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:58,698 INFO L185 Difference]: Start difference. First operand has 142 places, 131 transitions, 274 flow. Second operand 3 states and 847 transitions. [2021-04-28 22:11:58,699 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 141 places, 144 transitions, 398 flow [2021-04-28 22:11:58,703 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 144 transitions, 394 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-04-28 22:11:58,706 INFO L241 Difference]: Finished difference. Result has 137 places, 49 transitions, 110 flow [2021-04-28 22:11:58,708 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=260, PETRI_DIFFERENCE_MINUEND_PLACES=135, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=126, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=110, PETRI_PLACES=137, PETRI_TRANSITIONS=49} [2021-04-28 22:11:58,709 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -5 predicate places. [2021-04-28 22:11:58,709 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:11:58,709 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 137 places, 49 transitions, 110 flow [2021-04-28 22:11:58,710 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 137 places, 49 transitions, 110 flow [2021-04-28 22:11:58,710 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 60 places, 49 transitions, 110 flow [2021-04-28 22:11:58,720 INFO L129 PetriNetUnfolder]: 0/49 cut-off events. [2021-04-28 22:11:58,720 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:11:58,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 49 events. 0/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 176 event pairs, 0 based on Foata normal form. 0/27 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-04-28 22:11:58,722 INFO L146 LiptonReduction]: Number of co-enabled transitions 1430 [2021-04-28 22:11:59,074 INFO L158 LiptonReduction]: Checked pairs total: 1424 [2021-04-28 22:11:59,074 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:11:59,074 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 365 [2021-04-28 22:11:59,077 INFO L480 AbstractCegarLoop]: Abstraction has has 60 places, 49 transitions, 110 flow [2021-04-28 22:11:59,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 265.6666666666667) internal successors, (797), 3 states have internal predecessors, (797), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,078 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:11:59,078 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:11:59,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-04-28 22:11:59,079 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 22:11:59,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:11:59,079 INFO L82 PathProgramCache]: Analyzing trace with hash 828463142, now seen corresponding path program 1 times [2021-04-28 22:11:59,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:11:59,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1437781087] [2021-04-28 22:11:59,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:11:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:11:59,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:11:59,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:11:59,219 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:11:59,220 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1437781087] [2021-04-28 22:11:59,220 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:11:59,220 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-04-28 22:11:59,220 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821501631] [2021-04-28 22:11:59,221 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:11:59,221 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:11:59,222 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:11:59,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:11:59,224 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 344 [2021-04-28 22:11:59,226 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 49 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,226 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:11:59,226 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 344 [2021-04-28 22:11:59,226 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:11:59,251 INFO L129 PetriNetUnfolder]: 3/65 cut-off events. [2021-04-28 22:11:59,252 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:11:59,252 INFO L84 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 65 events. 3/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 228 event pairs, 1 based on Foata normal form. 1/39 useless extension candidates. Maximal degree in co-relation 79. Up to 10 conditions per place. [2021-04-28 22:11:59,253 INFO L132 encePairwiseOnDemand]: 340/344 looper letters, 3 selfloop transitions, 3 changer transitions 0/51 dead transitions. [2021-04-28 22:11:59,253 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 51 transitions, 126 flow [2021-04-28 22:11:59,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:11:59,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:11:59,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 745 transitions. [2021-04-28 22:11:59,258 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7218992248062015 [2021-04-28 22:11:59,259 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 745 transitions. [2021-04-28 22:11:59,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 745 transitions. [2021-04-28 22:11:59,259 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:11:59,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 745 transitions. [2021-04-28 22:11:59,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.33333333333334) internal successors, (745), 3 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 344.0) internal successors, (1376), 4 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,266 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 344.0) internal successors, (1376), 4 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,266 INFO L185 Difference]: Start difference. First operand has 60 places, 49 transitions, 110 flow. Second operand 3 states and 745 transitions. [2021-04-28 22:11:59,266 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 51 transitions, 126 flow [2021-04-28 22:11:59,267 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 51 transitions, 122 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-04-28 22:11:59,268 INFO L241 Difference]: Finished difference. Result has 61 places, 51 transitions, 125 flow [2021-04-28 22:11:59,268 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=125, PETRI_PLACES=61, PETRI_TRANSITIONS=51} [2021-04-28 22:11:59,269 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -81 predicate places. [2021-04-28 22:11:59,269 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:11:59,269 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 22:11:59,270 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 61 places, 51 transitions, 125 flow [2021-04-28 22:11:59,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 51 transitions, 125 flow [2021-04-28 22:11:59,279 INFO L129 PetriNetUnfolder]: 3/61 cut-off events. [2021-04-28 22:11:59,279 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-04-28 22:11:59,279 INFO L84 FinitePrefix]: Finished finitePrefix Result has 84 conditions, 61 events. 3/61 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 236 event pairs, 1 based on Foata normal form. 0/33 useless extension candidates. Maximal degree in co-relation 76. Up to 10 conditions per place. [2021-04-28 22:11:59,281 INFO L146 LiptonReduction]: Number of co-enabled transitions 1548 [2021-04-28 22:11:59,570 INFO L158 LiptonReduction]: Checked pairs total: 1193 [2021-04-28 22:11:59,570 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:11:59,570 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 301 [2021-04-28 22:11:59,572 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 51 transitions, 125 flow [2021-04-28 22:11:59,573 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 246.66666666666666) internal successors, (740), 3 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,573 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:11:59,573 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:11:59,573 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-04-28 22:11:59,573 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 22:11:59,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:11:59,574 INFO L82 PathProgramCache]: Analyzing trace with hash -87448798, now seen corresponding path program 1 times [2021-04-28 22:11:59,574 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:11:59,574 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548981664] [2021-04-28 22:11:59,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:11:59,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:11:59,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:11:59,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:11:59,739 INFO L142 QuantifierPusher]: treesize reduction 16, result has 33.3 percent of original size [2021-04-28 22:11:59,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 22:11:59,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:11:59,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548981664] [2021-04-28 22:11:59,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:11:59,759 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:11:59,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [745287577] [2021-04-28 22:11:59,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:11:59,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:11:59,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:11:59,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:11:59,762 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 212 out of 344 [2021-04-28 22:11:59,764 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 51 transitions, 125 flow. Second operand has 4 states, 4 states have (on average 212.75) internal successors, (851), 4 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,764 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:11:59,764 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 212 of 344 [2021-04-28 22:11:59,764 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:11:59,949 INFO L129 PetriNetUnfolder]: 176/393 cut-off events. [2021-04-28 22:11:59,949 INFO L130 PetriNetUnfolder]: For 11/11 co-relation queries the response was YES. [2021-04-28 22:11:59,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 393 events. 176/393 cut-off events. For 11/11 co-relation queries the response was YES. Maximal size of possible extension queue 57. Compared 2209 event pairs, 68 based on Foata normal form. 3/300 useless extension candidates. Maximal degree in co-relation 717. Up to 249 conditions per place. [2021-04-28 22:11:59,955 INFO L132 encePairwiseOnDemand]: 337/344 looper letters, 8 selfloop transitions, 8 changer transitions 0/59 dead transitions. [2021-04-28 22:11:59,955 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 59 transitions, 173 flow [2021-04-28 22:11:59,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:11:59,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:11:59,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 866 transitions. [2021-04-28 22:11:59,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6293604651162791 [2021-04-28 22:11:59,961 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 866 transitions. [2021-04-28 22:11:59,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 866 transitions. [2021-04-28 22:11:59,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:11:59,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 866 transitions. [2021-04-28 22:11:59,965 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 216.5) internal successors, (866), 4 states have internal predecessors, (866), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,968 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,969 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:11:59,969 INFO L185 Difference]: Start difference. First operand has 61 places, 51 transitions, 125 flow. Second operand 4 states and 866 transitions. [2021-04-28 22:11:59,970 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 59 transitions, 173 flow [2021-04-28 22:11:59,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 59 transitions, 170 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:11:59,972 INFO L241 Difference]: Finished difference. Result has 65 places, 58 transitions, 175 flow [2021-04-28 22:11:59,972 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=175, PETRI_PLACES=65, PETRI_TRANSITIONS=58} [2021-04-28 22:11:59,973 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -77 predicate places. [2021-04-28 22:11:59,973 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:11:59,973 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 65 places, 58 transitions, 175 flow [2021-04-28 22:11:59,973 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 65 places, 58 transitions, 175 flow [2021-04-28 22:11:59,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 65 places, 58 transitions, 175 flow [2021-04-28 22:11:59,998 INFO L129 PetriNetUnfolder]: 21/161 cut-off events. [2021-04-28 22:11:59,998 INFO L130 PetriNetUnfolder]: For 25/28 co-relation queries the response was YES. [2021-04-28 22:11:59,999 INFO L84 FinitePrefix]: Finished finitePrefix Result has 263 conditions, 161 events. 21/161 cut-off events. For 25/28 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 928 event pairs, 8 based on Foata normal form. 0/95 useless extension candidates. Maximal degree in co-relation 252. Up to 28 conditions per place. [2021-04-28 22:12:00,003 INFO L146 LiptonReduction]: Number of co-enabled transitions 1836 [2021-04-28 22:12:00,177 INFO L158 LiptonReduction]: Checked pairs total: 665 [2021-04-28 22:12:00,178 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:00,178 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 205 [2021-04-28 22:12:00,179 INFO L480 AbstractCegarLoop]: Abstraction has has 65 places, 58 transitions, 175 flow [2021-04-28 22:12:00,180 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 212.75) internal successors, (851), 4 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:00,180 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:00,181 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:00,181 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-04-28 22:12:00,181 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 22:12:00,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:00,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1343337756, now seen corresponding path program 1 times [2021-04-28 22:12:00,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:00,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120284365] [2021-04-28 22:12:00,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:00,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:00,282 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:00,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:12:00,301 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:00,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:12:00,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:00,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-04-28 22:12:00,356 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:00,356 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120284365] [2021-04-28 22:12:00,356 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:00,356 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:12:00,356 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [822037197] [2021-04-28 22:12:00,357 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:12:00,357 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:00,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:12:00,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:12:00,360 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 344 [2021-04-28 22:12:00,362 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 58 transitions, 175 flow. Second operand has 5 states, 5 states have (on average 218.8) internal successors, (1094), 5 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:00,362 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:00,362 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 344 [2021-04-28 22:12:00,362 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:00,583 INFO L129 PetriNetUnfolder]: 158/391 cut-off events. [2021-04-28 22:12:00,583 INFO L130 PetriNetUnfolder]: For 199/297 co-relation queries the response was YES. [2021-04-28 22:12:00,586 INFO L84 FinitePrefix]: Finished finitePrefix Result has 952 conditions, 391 events. 158/391 cut-off events. For 199/297 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 2294 event pairs, 55 based on Foata normal form. 15/296 useless extension candidates. Maximal degree in co-relation 939. Up to 189 conditions per place. [2021-04-28 22:12:00,589 INFO L132 encePairwiseOnDemand]: 340/344 looper letters, 15 selfloop transitions, 7 changer transitions 0/65 dead transitions. [2021-04-28 22:12:00,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 65 transitions, 251 flow [2021-04-28 22:12:00,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:12:00,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:12:00,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 889 transitions. [2021-04-28 22:12:00,596 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6460755813953488 [2021-04-28 22:12:00,596 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 889 transitions. [2021-04-28 22:12:00,596 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 889 transitions. [2021-04-28 22:12:00,597 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:00,597 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 889 transitions. [2021-04-28 22:12:00,599 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 222.25) internal successors, (889), 4 states have internal predecessors, (889), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:00,603 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:00,604 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:00,605 INFO L185 Difference]: Start difference. First operand has 65 places, 58 transitions, 175 flow. Second operand 4 states and 889 transitions. [2021-04-28 22:12:00,605 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 65 transitions, 251 flow [2021-04-28 22:12:00,606 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 65 transitions, 251 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:12:00,609 INFO L241 Difference]: Finished difference. Result has 70 places, 60 transitions, 210 flow [2021-04-28 22:12:00,609 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=175, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=210, PETRI_PLACES=70, PETRI_TRANSITIONS=60} [2021-04-28 22:12:00,610 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -72 predicate places. [2021-04-28 22:12:00,610 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:00,610 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 60 transitions, 210 flow [2021-04-28 22:12:00,610 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 70 places, 60 transitions, 210 flow [2021-04-28 22:12:00,611 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 70 places, 60 transitions, 210 flow [2021-04-28 22:12:00,638 INFO L129 PetriNetUnfolder]: 25/167 cut-off events. [2021-04-28 22:12:00,638 INFO L130 PetriNetUnfolder]: For 107/113 co-relation queries the response was YES. [2021-04-28 22:12:00,640 INFO L84 FinitePrefix]: Finished finitePrefix Result has 339 conditions, 167 events. 25/167 cut-off events. For 107/113 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 952 event pairs, 10 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 324. Up to 37 conditions per place. [2021-04-28 22:12:00,644 INFO L146 LiptonReduction]: Number of co-enabled transitions 1914 [2021-04-28 22:12:00,764 INFO L158 LiptonReduction]: Checked pairs total: 673 [2021-04-28 22:12:00,764 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:00,764 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 154 [2021-04-28 22:12:00,766 INFO L480 AbstractCegarLoop]: Abstraction has has 70 places, 60 transitions, 210 flow [2021-04-28 22:12:00,767 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 218.8) internal successors, (1094), 5 states have internal predecessors, (1094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:00,767 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:00,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:00,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-04-28 22:12:00,767 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 22:12:00,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:00,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1582114758, now seen corresponding path program 1 times [2021-04-28 22:12:00,768 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:00,768 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370070656] [2021-04-28 22:12:00,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:00,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:00,892 INFO L142 QuantifierPusher]: treesize reduction 13, result has 53.6 percent of original size [2021-04-28 22:12:00,893 INFO L147 QuantifierPusher]: treesize reduction 4, result has 73.3 percent of original size 11 [2021-04-28 22:12:00,938 INFO L142 QuantifierPusher]: treesize reduction 23, result has 45.2 percent of original size [2021-04-28 22:12:00,940 INFO L147 QuantifierPusher]: treesize reduction 4, result has 78.9 percent of original size 15 [2021-04-28 22:12:00,988 INFO L142 QuantifierPusher]: treesize reduction 14, result has 58.8 percent of original size [2021-04-28 22:12:00,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-04-28 22:12:01,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:01,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1370070656] [2021-04-28 22:12:01,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:01,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:12:01,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021867119] [2021-04-28 22:12:01,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:12:01,030 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:01,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:12:01,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:12:01,032 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 208 out of 344 [2021-04-28 22:12:01,034 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 60 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 208.8) internal successors, (1044), 5 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:01,034 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:01,034 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 208 of 344 [2021-04-28 22:12:01,035 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:01,312 INFO L129 PetriNetUnfolder]: 154/399 cut-off events. [2021-04-28 22:12:01,312 INFO L130 PetriNetUnfolder]: For 350/460 co-relation queries the response was YES. [2021-04-28 22:12:01,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1048 conditions, 399 events. 154/399 cut-off events. For 350/460 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2381 event pairs, 33 based on Foata normal form. 17/305 useless extension candidates. Maximal degree in co-relation 1031. Up to 159 conditions per place. [2021-04-28 22:12:01,319 INFO L132 encePairwiseOnDemand]: 338/344 looper letters, 17 selfloop transitions, 8 changer transitions 0/68 dead transitions. [2021-04-28 22:12:01,319 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 68 transitions, 292 flow [2021-04-28 22:12:01,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:12:01,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:12:01,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 851 transitions. [2021-04-28 22:12:01,326 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6184593023255814 [2021-04-28 22:12:01,326 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 851 transitions. [2021-04-28 22:12:01,326 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 851 transitions. [2021-04-28 22:12:01,327 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:01,327 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 851 transitions. [2021-04-28 22:12:01,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 212.75) internal successors, (851), 4 states have internal predecessors, (851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:01,333 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:01,334 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:01,334 INFO L185 Difference]: Start difference. First operand has 70 places, 60 transitions, 210 flow. Second operand 4 states and 851 transitions. [2021-04-28 22:12:01,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 68 transitions, 292 flow [2021-04-28 22:12:01,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 68 transitions, 287 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-04-28 22:12:01,339 INFO L241 Difference]: Finished difference. Result has 74 places, 63 transitions, 253 flow [2021-04-28 22:12:01,339 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=205, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=60, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=52, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=253, PETRI_PLACES=74, PETRI_TRANSITIONS=63} [2021-04-28 22:12:01,339 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -68 predicate places. [2021-04-28 22:12:01,340 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:01,340 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 63 transitions, 253 flow [2021-04-28 22:12:01,340 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 63 transitions, 253 flow [2021-04-28 22:12:01,341 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 74 places, 63 transitions, 253 flow [2021-04-28 22:12:01,390 INFO L129 PetriNetUnfolder]: 66/271 cut-off events. [2021-04-28 22:12:01,391 INFO L130 PetriNetUnfolder]: For 427/446 co-relation queries the response was YES. [2021-04-28 22:12:01,393 INFO L84 FinitePrefix]: Finished finitePrefix Result has 650 conditions, 271 events. 66/271 cut-off events. For 427/446 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 1683 event pairs, 25 based on Foata normal form. 0/168 useless extension candidates. Maximal degree in co-relation 632. Up to 83 conditions per place. [2021-04-28 22:12:01,400 INFO L146 LiptonReduction]: Number of co-enabled transitions 2074 [2021-04-28 22:12:01,521 INFO L158 LiptonReduction]: Checked pairs total: 512 [2021-04-28 22:12:01,522 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:01,522 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 182 [2021-04-28 22:12:01,523 INFO L480 AbstractCegarLoop]: Abstraction has has 74 places, 63 transitions, 253 flow [2021-04-28 22:12:01,524 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 208.8) internal successors, (1044), 5 states have internal predecessors, (1044), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:01,524 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:01,525 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:01,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-04-28 22:12:01,525 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 22:12:01,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:01,525 INFO L82 PathProgramCache]: Analyzing trace with hash 744262443, now seen corresponding path program 1 times [2021-04-28 22:12:01,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:01,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143746486] [2021-04-28 22:12:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:01,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:01,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:12:01,636 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:01,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:12:01,664 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:01,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:12:01,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:01,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:12:01,728 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:01,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-04-28 22:12:01,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:01,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143746486] [2021-04-28 22:12:01,731 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:01,731 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:12:01,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1550403723] [2021-04-28 22:12:01,731 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:12:01,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:01,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:12:01,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:12:01,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 224 out of 344 [2021-04-28 22:12:01,738 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 74 places, 63 transitions, 253 flow. Second operand has 6 states, 6 states have (on average 225.0) internal successors, (1350), 6 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:01,738 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:01,738 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 224 of 344 [2021-04-28 22:12:01,738 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:02,051 INFO L129 PetriNetUnfolder]: 218/584 cut-off events. [2021-04-28 22:12:02,051 INFO L130 PetriNetUnfolder]: For 943/1177 co-relation queries the response was YES. [2021-04-28 22:12:02,056 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1798 conditions, 584 events. 218/584 cut-off events. For 943/1177 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 3917 event pairs, 35 based on Foata normal form. 11/441 useless extension candidates. Maximal degree in co-relation 1778. Up to 289 conditions per place. [2021-04-28 22:12:02,062 INFO L132 encePairwiseOnDemand]: 336/344 looper letters, 14 selfloop transitions, 21 changer transitions 0/78 dead transitions. [2021-04-28 22:12:02,062 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 78 transitions, 419 flow [2021-04-28 22:12:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:12:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:12:02,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1139 transitions. [2021-04-28 22:12:02,068 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6622093023255814 [2021-04-28 22:12:02,069 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1139 transitions. [2021-04-28 22:12:02,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1139 transitions. [2021-04-28 22:12:02,070 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:02,070 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1139 transitions. [2021-04-28 22:12:02,073 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 227.8) internal successors, (1139), 5 states have internal predecessors, (1139), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:02,076 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 344.0) internal successors, (2064), 6 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 22:12:02,077 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 344.0) internal successors, (2064), 6 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 22:12:02,077 INFO L185 Difference]: Start difference. First operand has 74 places, 63 transitions, 253 flow. Second operand 5 states and 1139 transitions. [2021-04-28 22:12:02,078 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 78 transitions, 419 flow [2021-04-28 22:12:02,081 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 78 transitions, 388 flow, removed 5 selfloop flow, removed 3 redundant places. [2021-04-28 22:12:02,083 INFO L241 Difference]: Finished difference. Result has 77 places, 76 transitions, 392 flow [2021-04-28 22:12:02,083 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=392, PETRI_PLACES=77, PETRI_TRANSITIONS=76} [2021-04-28 22:12:02,084 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -65 predicate places. [2021-04-28 22:12:02,084 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:02,084 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 76 transitions, 392 flow [2021-04-28 22:12:02,084 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 77 places, 76 transitions, 392 flow [2021-04-28 22:12:02,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 76 transitions, 392 flow [2021-04-28 22:12:02,150 INFO L129 PetriNetUnfolder]: 112/354 cut-off events. [2021-04-28 22:12:02,150 INFO L130 PetriNetUnfolder]: For 840/898 co-relation queries the response was YES. [2021-04-28 22:12:02,153 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1076 conditions, 354 events. 112/354 cut-off events. For 840/898 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2198 event pairs, 23 based on Foata normal form. 4/243 useless extension candidates. Maximal degree in co-relation 1057. Up to 128 conditions per place. [2021-04-28 22:12:02,162 INFO L146 LiptonReduction]: Number of co-enabled transitions 2632 [2021-04-28 22:12:02,328 INFO L158 LiptonReduction]: Checked pairs total: 1047 [2021-04-28 22:12:02,329 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:02,329 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 245 [2021-04-28 22:12:02,330 INFO L480 AbstractCegarLoop]: Abstraction has has 77 places, 76 transitions, 392 flow [2021-04-28 22:12:02,331 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 225.0) internal successors, (1350), 6 states have internal predecessors, (1350), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:02,331 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:02,331 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:02,331 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-04-28 22:12:02,331 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 22:12:02,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:02,332 INFO L82 PathProgramCache]: Analyzing trace with hash -1906196543, now seen corresponding path program 2 times [2021-04-28 22:12:02,332 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:02,332 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472749926] [2021-04-28 22:12:02,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:02,415 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:02,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-04-28 22:12:02,441 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:02,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-04-28 22:12:02,476 INFO L142 QuantifierPusher]: treesize reduction 16, result has 46.7 percent of original size [2021-04-28 22:12:02,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-04-28 22:12:02,508 INFO L142 QuantifierPusher]: treesize reduction 26, result has 68.3 percent of original size [2021-04-28 22:12:02,510 INFO L147 QuantifierPusher]: treesize reduction 5, result has 91.1 percent of original size 51 [2021-04-28 22:12:02,565 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:02,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:12:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:02,592 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472749926] [2021-04-28 22:12:02,592 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:02,592 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:12:02,592 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1960546504] [2021-04-28 22:12:02,593 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:12:02,593 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:02,593 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:12:02,593 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:12:02,596 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 199 out of 344 [2021-04-28 22:12:02,598 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 76 transitions, 392 flow. Second operand has 7 states, 7 states have (on average 199.85714285714286) internal successors, (1399), 7 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:02,598 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:02,598 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 199 of 344 [2021-04-28 22:12:02,598 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:03,018 INFO L129 PetriNetUnfolder]: 215/565 cut-off events. [2021-04-28 22:12:03,019 INFO L130 PetriNetUnfolder]: For 1323/1866 co-relation queries the response was YES. [2021-04-28 22:12:03,024 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2105 conditions, 565 events. 215/565 cut-off events. For 1323/1866 co-relation queries the response was YES. Maximal size of possible extension queue 78. Compared 3689 event pairs, 16 based on Foata normal form. 31/454 useless extension candidates. Maximal degree in co-relation 2084. Up to 221 conditions per place. [2021-04-28 22:12:03,030 INFO L132 encePairwiseOnDemand]: 338/344 looper letters, 26 selfloop transitions, 18 changer transitions 0/87 dead transitions. [2021-04-28 22:12:03,031 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 81 places, 87 transitions, 560 flow [2021-04-28 22:12:03,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:12:03,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:12:03,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1016 transitions. [2021-04-28 22:12:03,038 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5906976744186047 [2021-04-28 22:12:03,038 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1016 transitions. [2021-04-28 22:12:03,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1016 transitions. [2021-04-28 22:12:03,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:03,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1016 transitions. [2021-04-28 22:12:03,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 203.2) internal successors, (1016), 5 states have internal predecessors, (1016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:03,045 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 344.0) internal successors, (2064), 6 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 22:12:03,046 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 344.0) internal successors, (2064), 6 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 22:12:03,046 INFO L185 Difference]: Start difference. First operand has 77 places, 76 transitions, 392 flow. Second operand 5 states and 1016 transitions. [2021-04-28 22:12:03,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 81 places, 87 transitions, 560 flow [2021-04-28 22:12:03,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 87 transitions, 539 flow, removed 10 selfloop flow, removed 1 redundant places. [2021-04-28 22:12:03,053 INFO L241 Difference]: Finished difference. Result has 81 places, 78 transitions, 450 flow [2021-04-28 22:12:03,053 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=379, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=450, PETRI_PLACES=81, PETRI_TRANSITIONS=78} [2021-04-28 22:12:03,053 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -61 predicate places. [2021-04-28 22:12:03,053 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:03,054 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 81 places, 78 transitions, 450 flow [2021-04-28 22:12:03,054 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 81 places, 78 transitions, 450 flow [2021-04-28 22:12:03,055 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 81 places, 78 transitions, 450 flow [2021-04-28 22:12:03,125 INFO L129 PetriNetUnfolder]: 111/353 cut-off events. [2021-04-28 22:12:03,125 INFO L130 PetriNetUnfolder]: For 890/954 co-relation queries the response was YES. [2021-04-28 22:12:03,129 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1140 conditions, 353 events. 111/353 cut-off events. For 890/954 co-relation queries the response was YES. Maximal size of possible extension queue 54. Compared 2192 event pairs, 19 based on Foata normal form. 5/242 useless extension candidates. Maximal degree in co-relation 1119. Up to 128 conditions per place. [2021-04-28 22:12:03,139 INFO L146 LiptonReduction]: Number of co-enabled transitions 2718 [2021-04-28 22:12:03,307 INFO L158 LiptonReduction]: Checked pairs total: 1152 [2021-04-28 22:12:03,307 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:03,307 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 254 [2021-04-28 22:12:03,309 INFO L480 AbstractCegarLoop]: Abstraction has has 81 places, 78 transitions, 450 flow [2021-04-28 22:12:03,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 199.85714285714286) internal successors, (1399), 7 states have internal predecessors, (1399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:03,310 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:03,310 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:03,310 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-04-28 22:12:03,310 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 22:12:03,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:03,310 INFO L82 PathProgramCache]: Analyzing trace with hash -1576853567, now seen corresponding path program 1 times [2021-04-28 22:12:03,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:03,311 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836749849] [2021-04-28 22:12:03,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:03,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:03,376 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:03,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-04-28 22:12:03,393 INFO L142 QuantifierPusher]: treesize reduction 10, result has 44.4 percent of original size [2021-04-28 22:12:03,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 22:12:03,411 INFO L142 QuantifierPusher]: treesize reduction 10, result has 44.4 percent of original size [2021-04-28 22:12:03,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 8 [2021-04-28 22:12:03,414 INFO L142 QuantifierPusher]: treesize reduction 10, result has 52.4 percent of original size [2021-04-28 22:12:03,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 11 [2021-04-28 22:12:03,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:03,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836749849] [2021-04-28 22:12:03,439 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:03,439 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:12:03,439 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935577966] [2021-04-28 22:12:03,439 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:12:03,440 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:03,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:12:03,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:12:03,443 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 218 out of 344 [2021-04-28 22:12:03,469 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 78 transitions, 450 flow. Second operand has 5 states, 5 states have (on average 219.2) internal successors, (1096), 5 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:03,469 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:03,469 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 218 of 344 [2021-04-28 22:12:03,470 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:03,756 INFO L129 PetriNetUnfolder]: 215/554 cut-off events. [2021-04-28 22:12:03,756 INFO L130 PetriNetUnfolder]: For 1565/2174 co-relation queries the response was YES. [2021-04-28 22:12:03,763 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2231 conditions, 554 events. 215/554 cut-off events. For 1565/2174 co-relation queries the response was YES. Maximal size of possible extension queue 75. Compared 3565 event pairs, 25 based on Foata normal form. 40/462 useless extension candidates. Maximal degree in co-relation 2208. Up to 270 conditions per place. [2021-04-28 22:12:03,771 INFO L132 encePairwiseOnDemand]: 336/344 looper letters, 18 selfloop transitions, 25 changer transitions 0/86 dead transitions. [2021-04-28 22:12:03,772 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 86 places, 86 transitions, 589 flow [2021-04-28 22:12:03,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-04-28 22:12:03,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-04-28 22:12:03,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1329 transitions. [2021-04-28 22:12:03,779 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6438953488372093 [2021-04-28 22:12:03,779 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1329 transitions. [2021-04-28 22:12:03,779 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1329 transitions. [2021-04-28 22:12:03,780 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:03,780 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1329 transitions. [2021-04-28 22:12:03,784 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 221.5) internal successors, (1329), 6 states have internal predecessors, (1329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:03,788 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 344.0) internal successors, (2408), 7 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:03,789 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 344.0) internal successors, (2408), 7 states have internal predecessors, (2408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:03,789 INFO L185 Difference]: Start difference. First operand has 81 places, 78 transitions, 450 flow. Second operand 6 states and 1329 transitions. [2021-04-28 22:12:03,789 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 86 places, 86 transitions, 589 flow [2021-04-28 22:12:03,794 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 82 places, 86 transitions, 554 flow, removed 2 selfloop flow, removed 4 redundant places. [2021-04-28 22:12:03,796 INFO L241 Difference]: Finished difference. Result has 83 places, 83 transitions, 520 flow [2021-04-28 22:12:03,796 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=406, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=520, PETRI_PLACES=83, PETRI_TRANSITIONS=83} [2021-04-28 22:12:03,796 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -59 predicate places. [2021-04-28 22:12:03,796 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:03,797 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 83 places, 83 transitions, 520 flow [2021-04-28 22:12:03,797 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 83 places, 83 transitions, 520 flow [2021-04-28 22:12:03,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 83 places, 83 transitions, 520 flow [2021-04-28 22:12:03,858 INFO L129 PetriNetUnfolder]: 111/347 cut-off events. [2021-04-28 22:12:03,858 INFO L130 PetriNetUnfolder]: For 809/879 co-relation queries the response was YES. [2021-04-28 22:12:03,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1174 conditions, 347 events. 111/347 cut-off events. For 809/879 co-relation queries the response was YES. Maximal size of possible extension queue 50. Compared 2169 event pairs, 21 based on Foata normal form. 6/247 useless extension candidates. Maximal degree in co-relation 1153. Up to 126 conditions per place. [2021-04-28 22:12:03,873 INFO L146 LiptonReduction]: Number of co-enabled transitions 2850 [2021-04-28 22:12:03,993 INFO L158 LiptonReduction]: Checked pairs total: 1413 [2021-04-28 22:12:03,993 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:03,993 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 197 [2021-04-28 22:12:03,995 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 83 transitions, 520 flow [2021-04-28 22:12:03,995 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 219.2) internal successors, (1096), 5 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:03,996 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:03,996 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:03,996 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-04-28 22:12:03,996 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 22:12:03,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:03,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1861905727, now seen corresponding path program 1 times [2021-04-28 22:12:03,997 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:03,997 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360394871] [2021-04-28 22:12:03,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:04,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:04,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:04,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:04,083 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:12:04,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:12:04,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:04,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:12:04,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:04,109 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360394871] [2021-04-28 22:12:04,110 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:04,110 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:12:04,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431382857] [2021-04-28 22:12:04,110 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:12:04,110 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:04,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:12:04,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:12:04,113 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 344 [2021-04-28 22:12:04,114 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 83 transitions, 520 flow. Second operand has 4 states, 4 states have (on average 257.75) internal successors, (1031), 4 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:04,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:04,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 344 [2021-04-28 22:12:04,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:11,405 INFO L129 PetriNetUnfolder]: 28364/43056 cut-off events. [2021-04-28 22:12:11,405 INFO L130 PetriNetUnfolder]: For 18041/44126 co-relation queries the response was YES. [2021-04-28 22:12:11,665 INFO L84 FinitePrefix]: Finished finitePrefix Result has 95772 conditions, 43056 events. 28364/43056 cut-off events. For 18041/44126 co-relation queries the response was YES. Maximal size of possible extension queue 7944. Compared 401039 event pairs, 13971 based on Foata normal form. 1153/13194 useless extension candidates. Maximal degree in co-relation 95749. Up to 26668 conditions per place. [2021-04-28 22:12:11,869 INFO L132 encePairwiseOnDemand]: 324/344 looper letters, 38 selfloop transitions, 33 changer transitions 0/127 dead transitions. [2021-04-28 22:12:11,869 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 87 places, 127 transitions, 750 flow [2021-04-28 22:12:11,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-04-28 22:12:11,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-04-28 22:12:11,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 1351 transitions. [2021-04-28 22:12:11,876 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7854651162790698 [2021-04-28 22:12:11,876 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 1351 transitions. [2021-04-28 22:12:11,876 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 1351 transitions. [2021-04-28 22:12:11,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:11,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 1351 transitions. [2021-04-28 22:12:11,881 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 270.2) internal successors, (1351), 5 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:11,885 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 344.0) internal successors, (2064), 6 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 22:12:11,886 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 344.0) internal successors, (2064), 6 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 22:12:11,886 INFO L185 Difference]: Start difference. First operand has 83 places, 83 transitions, 520 flow. Second operand 5 states and 1351 transitions. [2021-04-28 22:12:11,886 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 87 places, 127 transitions, 750 flow [2021-04-28 22:12:12,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 127 transitions, 732 flow, removed 6 selfloop flow, removed 2 redundant places. [2021-04-28 22:12:12,064 INFO L241 Difference]: Finished difference. Result has 88 places, 114 transitions, 764 flow [2021-04-28 22:12:12,064 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=502, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=83, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=764, PETRI_PLACES=88, PETRI_TRANSITIONS=114} [2021-04-28 22:12:12,064 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -54 predicate places. [2021-04-28 22:12:12,064 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:12,065 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 88 places, 114 transitions, 764 flow [2021-04-28 22:12:12,065 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 88 places, 114 transitions, 764 flow [2021-04-28 22:12:12,066 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 88 places, 114 transitions, 764 flow [2021-04-28 22:12:16,132 INFO L129 PetriNetUnfolder]: 25835/39866 cut-off events. [2021-04-28 22:12:16,133 INFO L130 PetriNetUnfolder]: For 25528/173565 co-relation queries the response was YES. [2021-04-28 22:12:16,512 INFO L84 FinitePrefix]: Finished finitePrefix Result has 121580 conditions, 39866 events. 25835/39866 cut-off events. For 25528/173565 co-relation queries the response was YES. Maximal size of possible extension queue 6774. Compared 372654 event pairs, 13594 based on Foata normal form. 93/12197 useless extension candidates. Maximal degree in co-relation 121556. Up to 35393 conditions per place. [2021-04-28 22:12:16,906 INFO L146 LiptonReduction]: Number of co-enabled transitions 4346 [2021-04-28 22:12:17,023 INFO L158 LiptonReduction]: Checked pairs total: 1684 [2021-04-28 22:12:17,024 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:17,024 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 4960 [2021-04-28 22:12:17,026 INFO L480 AbstractCegarLoop]: Abstraction has has 88 places, 114 transitions, 764 flow [2021-04-28 22:12:17,026 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 257.75) internal successors, (1031), 4 states have internal predecessors, (1031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:17,026 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:17,027 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:17,027 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-04-28 22:12:17,027 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 22:12:17,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:17,027 INFO L82 PathProgramCache]: Analyzing trace with hash 1822915933, now seen corresponding path program 1 times [2021-04-28 22:12:17,028 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:17,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917199055] [2021-04-28 22:12:17,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:17,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:17,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:17,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:17,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:17,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:17,130 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:12:17,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:12:17,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:17,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:12:17,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:17,158 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917199055] [2021-04-28 22:12:17,158 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:17,158 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-04-28 22:12:17,159 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [51389174] [2021-04-28 22:12:17,159 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-04-28 22:12:17,159 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:17,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-04-28 22:12:17,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-04-28 22:12:17,162 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 344 [2021-04-28 22:12:17,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 88 places, 114 transitions, 764 flow. Second operand has 5 states, 5 states have (on average 257.8) internal successors, (1289), 5 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:17,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:17,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 344 [2021-04-28 22:12:17,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:23,538 INFO L129 PetriNetUnfolder]: 29993/48324 cut-off events. [2021-04-28 22:12:23,538 INFO L130 PetriNetUnfolder]: For 47147/1584965 co-relation queries the response was YES. [2021-04-28 22:12:23,769 INFO L84 FinitePrefix]: Finished finitePrefix Result has 189914 conditions, 48324 events. 29993/48324 cut-off events. For 47147/1584965 co-relation queries the response was YES. Maximal size of possible extension queue 9858. Compared 482724 event pairs, 5409 based on Foata normal form. 1373/16436 useless extension candidates. Maximal degree in co-relation 189888. Up to 43151 conditions per place. [2021-04-28 22:12:23,987 INFO L132 encePairwiseOnDemand]: 324/344 looper letters, 38 selfloop transitions, 64 changer transitions 0/157 dead transitions. [2021-04-28 22:12:23,987 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 94 places, 157 transitions, 1193 flow [2021-04-28 22:12:23,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-04-28 22:12:23,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-04-28 22:12:23,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1895 transitions. [2021-04-28 22:12:23,996 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7869601328903655 [2021-04-28 22:12:23,996 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1895 transitions. [2021-04-28 22:12:23,996 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1895 transitions. [2021-04-28 22:12:23,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:23,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1895 transitions. [2021-04-28 22:12:24,003 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 270.7142857142857) internal successors, (1895), 7 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:24,009 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 344.0) internal successors, (2752), 8 states have internal predecessors, (2752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:24,010 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 344.0) internal successors, (2752), 8 states have internal predecessors, (2752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:24,010 INFO L185 Difference]: Start difference. First operand has 88 places, 114 transitions, 764 flow. Second operand 7 states and 1895 transitions. [2021-04-28 22:12:24,010 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 94 places, 157 transitions, 1193 flow [2021-04-28 22:12:24,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 157 transitions, 1193 flow, removed 0 selfloop flow, removed 0 redundant places. [2021-04-28 22:12:24,095 INFO L241 Difference]: Finished difference. Result has 97 places, 143 transitions, 1194 flow [2021-04-28 22:12:24,096 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=740, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=1194, PETRI_PLACES=97, PETRI_TRANSITIONS=143} [2021-04-28 22:12:24,096 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -45 predicate places. [2021-04-28 22:12:24,096 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:24,096 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 143 transitions, 1194 flow [2021-04-28 22:12:24,096 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 143 transitions, 1194 flow [2021-04-28 22:12:24,098 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 143 transitions, 1194 flow [2021-04-28 22:12:29,258 INFO L129 PetriNetUnfolder]: 27111/44640 cut-off events. [2021-04-28 22:12:29,258 INFO L130 PetriNetUnfolder]: For 101840/967313 co-relation queries the response was YES. [2021-04-28 22:12:29,509 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213841 conditions, 44640 events. 27111/44640 cut-off events. For 101840/967313 co-relation queries the response was YES. Maximal size of possible extension queue 8051. Compared 455929 event pairs, 5136 based on Foata normal form. 122/13594 useless extension candidates. Maximal degree in co-relation 213812. Up to 40667 conditions per place. [2021-04-28 22:12:29,937 INFO L146 LiptonReduction]: Number of co-enabled transitions 5754 [2021-04-28 22:12:30,001 INFO L158 LiptonReduction]: Checked pairs total: 2076 [2021-04-28 22:12:30,002 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:30,002 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 5906 [2021-04-28 22:12:30,003 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 143 transitions, 1194 flow [2021-04-28 22:12:30,004 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 257.8) internal successors, (1289), 5 states have internal predecessors, (1289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:30,004 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:30,004 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:30,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-04-28 22:12:30,005 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 22:12:30,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1175840113, now seen corresponding path program 1 times [2021-04-28 22:12:30,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:30,006 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072580103] [2021-04-28 22:12:30,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:30,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:30,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:30,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:12:30,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:30,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:30,070 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:30,071 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072580103] [2021-04-28 22:12:30,071 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:30,071 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-04-28 22:12:30,071 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150648000] [2021-04-28 22:12:30,072 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-04-28 22:12:30,072 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:30,072 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-04-28 22:12:30,072 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-04-28 22:12:30,073 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 246 out of 344 [2021-04-28 22:12:30,074 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 143 transitions, 1194 flow. Second operand has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:30,074 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:30,074 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 246 of 344 [2021-04-28 22:12:30,074 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:12:39,784 INFO L129 PetriNetUnfolder]: 49036/77694 cut-off events. [2021-04-28 22:12:39,784 INFO L130 PetriNetUnfolder]: For 186941/2033408 co-relation queries the response was YES. [2021-04-28 22:12:40,224 INFO L84 FinitePrefix]: Finished finitePrefix Result has 373984 conditions, 77694 events. 49036/77694 cut-off events. For 186941/2033408 co-relation queries the response was YES. Maximal size of possible extension queue 15591. Compared 811331 event pairs, 9819 based on Foata normal form. 707/23865 useless extension candidates. Maximal degree in co-relation 373953. Up to 72446 conditions per place. [2021-04-28 22:12:40,896 INFO L132 encePairwiseOnDemand]: 341/344 looper letters, 3 selfloop transitions, 3 changer transitions 0/143 dead transitions. [2021-04-28 22:12:40,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 143 transitions, 1206 flow [2021-04-28 22:12:40,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-04-28 22:12:40,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-04-28 22:12:40,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 744 transitions. [2021-04-28 22:12:40,902 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7209302325581395 [2021-04-28 22:12:40,902 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 744 transitions. [2021-04-28 22:12:40,902 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 744 transitions. [2021-04-28 22:12:40,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:12:40,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 744 transitions. [2021-04-28 22:12:40,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 248.0) internal successors, (744), 3 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:40,916 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 344.0) internal successors, (1376), 4 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:40,917 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 344.0) internal successors, (1376), 4 states have internal predecessors, (1376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:40,917 INFO L185 Difference]: Start difference. First operand has 97 places, 143 transitions, 1194 flow. Second operand 3 states and 744 transitions. [2021-04-28 22:12:40,917 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 143 transitions, 1206 flow [2021-04-28 22:12:48,071 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 96 places, 143 transitions, 1044 flow, removed 54 selfloop flow, removed 3 redundant places. [2021-04-28 22:12:48,074 INFO L241 Difference]: Finished difference. Result has 97 places, 143 transitions, 1043 flow [2021-04-28 22:12:48,075 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1032, PETRI_DIFFERENCE_MINUEND_PLACES=94, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=143, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=140, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=1043, PETRI_PLACES=97, PETRI_TRANSITIONS=143} [2021-04-28 22:12:48,075 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -45 predicate places. [2021-04-28 22:12:48,075 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:12:48,075 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 97 places, 143 transitions, 1043 flow [2021-04-28 22:12:48,075 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 97 places, 143 transitions, 1043 flow [2021-04-28 22:12:48,077 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 97 places, 143 transitions, 1043 flow [2021-04-28 22:12:56,399 INFO L129 PetriNetUnfolder]: 47890/76212 cut-off events. [2021-04-28 22:12:56,399 INFO L130 PetriNetUnfolder]: For 190685/392974 co-relation queries the response was YES. [2021-04-28 22:12:56,886 INFO L84 FinitePrefix]: Finished finitePrefix Result has 340324 conditions, 76212 events. 47890/76212 cut-off events. For 190685/392974 co-relation queries the response was YES. Maximal size of possible extension queue 14074. Compared 795478 event pairs, 9576 based on Foata normal form. 171/23132 useless extension candidates. Maximal degree in co-relation 340295. Up to 62866 conditions per place. [2021-04-28 22:12:57,665 INFO L146 LiptonReduction]: Number of co-enabled transitions 5752 [2021-04-28 22:12:58,065 INFO L158 LiptonReduction]: Checked pairs total: 2076 [2021-04-28 22:12:58,066 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:12:58,066 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9991 [2021-04-28 22:12:58,067 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 143 transitions, 1043 flow [2021-04-28 22:12:58,068 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 247.0) internal successors, (741), 3 states have internal predecessors, (741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:58,068 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:12:58,068 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:12:58,068 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-04-28 22:12:58,068 INFO L428 AbstractCegarLoop]: === Iteration 12 === [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 22:12:58,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:12:58,069 INFO L82 PathProgramCache]: Analyzing trace with hash -1654561725, now seen corresponding path program 1 times [2021-04-28 22:12:58,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:12:58,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538976026] [2021-04-28 22:12:58,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:12:58,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:12:58,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:58,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:58,143 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:58,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:58,154 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:58,155 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:12:58,168 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:12:58,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:12:58,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:12:58,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:12:58,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:12:58,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538976026] [2021-04-28 22:12:58,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:12:58,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-04-28 22:12:58,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1081785751] [2021-04-28 22:12:58,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-04-28 22:12:58,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:12:58,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-04-28 22:12:58,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-04-28 22:12:58,200 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 344 [2021-04-28 22:12:58,201 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 143 transitions, 1043 flow. Second operand has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:12:58,201 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:12:58,201 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 344 [2021-04-28 22:12:58,201 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:13:09,252 INFO L129 PetriNetUnfolder]: 47980/80136 cut-off events. [2021-04-28 22:13:09,252 INFO L130 PetriNetUnfolder]: For 153611/1902976 co-relation queries the response was YES. [2021-04-28 22:13:09,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 429527 conditions, 80136 events. 47980/80136 cut-off events. For 153611/1902976 co-relation queries the response was YES. Maximal size of possible extension queue 16251. Compared 884529 event pairs, 1458 based on Foata normal form. 2122/26205 useless extension candidates. Maximal degree in co-relation 429496. Up to 65719 conditions per place. [2021-04-28 22:13:10,059 INFO L132 encePairwiseOnDemand]: 324/344 looper letters, 25 selfloop transitions, 95 changer transitions 12/186 dead transitions. [2021-04-28 22:13:10,059 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 105 places, 186 transitions, 1674 flow [2021-04-28 22:13:10,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-04-28 22:13:10,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-04-28 22:13:10,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 2439 transitions. [2021-04-28 22:13:10,070 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7877906976744186 [2021-04-28 22:13:10,070 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 2439 transitions. [2021-04-28 22:13:10,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 2439 transitions. [2021-04-28 22:13:10,073 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:13:10,073 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 2439 transitions. [2021-04-28 22:13:10,078 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 271.0) internal successors, (2439), 9 states have internal predecessors, (2439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:10,085 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 344.0) internal successors, (3440), 10 states have internal predecessors, (3440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:10,085 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 344.0) internal successors, (3440), 10 states have internal predecessors, (3440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:10,086 INFO L185 Difference]: Start difference. First operand has 97 places, 143 transitions, 1043 flow. Second operand 9 states and 2439 transitions. [2021-04-28 22:13:10,086 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 105 places, 186 transitions, 1674 flow [2021-04-28 22:13:16,634 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 104 places, 186 transitions, 1669 flow, removed 1 selfloop flow, removed 1 redundant places. [2021-04-28 22:13:16,637 INFO L241 Difference]: Finished difference. Result has 107 places, 171 transitions, 1590 flow [2021-04-28 22:13:16,637 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=996, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=58, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=1590, PETRI_PLACES=107, PETRI_TRANSITIONS=171} [2021-04-28 22:13:16,638 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -35 predicate places. [2021-04-28 22:13:16,638 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:13:16,638 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 107 places, 171 transitions, 1590 flow [2021-04-28 22:13:16,638 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 107 places, 171 transitions, 1590 flow [2021-04-28 22:13:16,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 107 places, 171 transitions, 1590 flow [2021-04-28 22:13:24,540 INFO L129 PetriNetUnfolder]: 35251/63288 cut-off events. [2021-04-28 22:13:24,540 INFO L130 PetriNetUnfolder]: For 335239/811601 co-relation queries the response was YES. [2021-04-28 22:13:25,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 371977 conditions, 63288 events. 35251/63288 cut-off events. For 335239/811601 co-relation queries the response was YES. Maximal size of possible extension queue 13625. Compared 765567 event pairs, 1431 based on Foata normal form. 36/18153 useless extension candidates. Maximal degree in co-relation 371944. Up to 51193 conditions per place. [2021-04-28 22:13:25,960 INFO L146 LiptonReduction]: Number of co-enabled transitions 6322 [2021-04-28 22:13:26,018 INFO L158 LiptonReduction]: Checked pairs total: 2271 [2021-04-28 22:13:26,018 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:13:26,018 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 9380 [2021-04-28 22:13:26,019 INFO L480 AbstractCegarLoop]: Abstraction has has 107 places, 171 transitions, 1590 flow [2021-04-28 22:13:26,020 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 257.8333333333333) internal successors, (1547), 6 states have internal predecessors, (1547), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:26,020 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:13:26,020 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-04-28 22:13:26,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-04-28 22:13:26,021 INFO L428 AbstractCegarLoop]: === Iteration 13 === [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 22:13:26,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:13:26,021 INFO L82 PathProgramCache]: Analyzing trace with hash 2112905132, now seen corresponding path program 1 times [2021-04-28 22:13:26,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:13:26,021 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486799100] [2021-04-28 22:13:26,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:13:26,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:13:26,100 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:13:26,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:13:26,108 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:13:26,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:13:26,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:13:26,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:13:26,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:13:26,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:13:26,149 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-04-28 22:13:26,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-04-28 22:13:26,177 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:13:26,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:13:26,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:13:26,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486799100] [2021-04-28 22:13:26,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:13:26,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-04-28 22:13:26,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [162318206] [2021-04-28 22:13:26,180 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-04-28 22:13:26,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:13:26,180 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-04-28 22:13:26,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-04-28 22:13:26,183 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 257 out of 344 [2021-04-28 22:13:26,184 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 107 places, 171 transitions, 1590 flow. Second operand has 7 states, 7 states have (on average 257.85714285714283) internal successors, (1805), 7 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:26,185 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:13:26,185 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 257 of 344 [2021-04-28 22:13:26,185 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:13:36,977 INFO L129 PetriNetUnfolder]: 35857/64449 cut-off events. [2021-04-28 22:13:36,978 INFO L130 PetriNetUnfolder]: For 229715/4293418 co-relation queries the response was YES. [2021-04-28 22:13:37,717 INFO L84 FinitePrefix]: Finished finitePrefix Result has 435851 conditions, 64449 events. 35857/64449 cut-off events. For 229715/4293418 co-relation queries the response was YES. Maximal size of possible extension queue 15591. Compared 753872 event pairs, 0 based on Foata normal form. 1364/19561 useless extension candidates. Maximal degree in co-relation 435816. Up to 51301 conditions per place. [2021-04-28 22:13:38,086 INFO L132 encePairwiseOnDemand]: 324/344 looper letters, 6 selfloop transitions, 113 changer transitions 20/193 dead transitions. [2021-04-28 22:13:38,087 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 193 transitions, 2058 flow [2021-04-28 22:13:38,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-04-28 22:13:38,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-04-28 22:13:38,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2959 transitions. [2021-04-28 22:13:38,099 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7819767441860465 [2021-04-28 22:13:38,099 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2959 transitions. [2021-04-28 22:13:38,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2959 transitions. [2021-04-28 22:13:38,102 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:13:38,103 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2959 transitions. [2021-04-28 22:13:38,110 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 269.0) internal successors, (2959), 11 states have internal predecessors, (2959), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:38,117 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 344.0) internal successors, (4128), 12 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:38,118 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 344.0) internal successors, (4128), 12 states have internal predecessors, (4128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:13:38,118 INFO L185 Difference]: Start difference. First operand has 107 places, 171 transitions, 1590 flow. Second operand 11 states and 2959 transitions. [2021-04-28 22:13:38,118 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 193 transitions, 2058 flow [2021-04-28 22:16:38,178 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 193 transitions, 1707 flow, removed 114 selfloop flow, removed 6 redundant places. [2021-04-28 22:16:38,181 INFO L241 Difference]: Finished difference. Result has 114 places, 170 transitions, 1502 flow [2021-04-28 22:16:38,181 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=344, PETRI_DIFFERENCE_MINUEND_FLOW=1220, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=170, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=112, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=1502, PETRI_PLACES=114, PETRI_TRANSITIONS=170} [2021-04-28 22:16:38,182 INFO L343 CegarLoopForPetriNet]: 142 programPoint places, -28 predicate places. [2021-04-28 22:16:38,182 INFO L171 etLargeBlockEncoding]: Petri net LBE is using conditional semantic-based independence relation. [2021-04-28 22:16:38,182 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 114 places, 170 transitions, 1502 flow [2021-04-28 22:16:38,182 INFO L133 LiptonReduction]: Starting Lipton reduction on Petri net that has 114 places, 170 transitions, 1502 flow [2021-04-28 22:16:38,184 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 112 places, 170 transitions, 1502 flow [2021-04-28 22:16:42,927 INFO L129 PetriNetUnfolder]: 29659/54888 cut-off events. [2021-04-28 22:16:42,927 INFO L130 PetriNetUnfolder]: For 79999/320563 co-relation queries the response was YES. [2021-04-28 22:16:43,415 INFO L84 FinitePrefix]: Finished finitePrefix Result has 244503 conditions, 54888 events. 29659/54888 cut-off events. For 79999/320563 co-relation queries the response was YES. Maximal size of possible extension queue 13711. Compared 681939 event pairs, 0 based on Foata normal form. 27/14963 useless extension candidates. Maximal degree in co-relation 244468. Up to 34560 conditions per place. [2021-04-28 22:16:44,058 INFO L146 LiptonReduction]: Number of co-enabled transitions 6218 [2021-04-28 22:16:45,121 INFO L158 LiptonReduction]: Checked pairs total: 2211 [2021-04-28 22:16:45,121 INFO L160 LiptonReduction]: Total number of compositions: 0 [2021-04-28 22:16:45,121 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 6939 [2021-04-28 22:16:45,122 INFO L480 AbstractCegarLoop]: Abstraction has has 112 places, 170 transitions, 1502 flow [2021-04-28 22:16:45,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 257.85714285714283) internal successors, (1805), 7 states have internal predecessors, (1805), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:16:45,123 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-04-28 22:16:45,123 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] [2021-04-28 22:16:45,123 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-04-28 22:16:45,123 INFO L428 AbstractCegarLoop]: === Iteration 14 === [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 22:16:45,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-04-28 22:16:45,124 INFO L82 PathProgramCache]: Analyzing trace with hash -363445265, now seen corresponding path program 1 times [2021-04-28 22:16:45,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-04-28 22:16:45,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508098522] [2021-04-28 22:16:45,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-04-28 22:16:45,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-04-28 22:16:46,043 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:16:46,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-04-28 22:16:46,046 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:16:46,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:16:46,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-04-28 22:16:46,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-04-28 22:16:46,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-04-28 22:16:46,063 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508098522] [2021-04-28 22:16:46,063 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-04-28 22:16:46,064 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-04-28 22:16:46,064 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2115695427] [2021-04-28 22:16:46,064 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-04-28 22:16:46,064 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-04-28 22:16:46,065 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-04-28 22:16:46,065 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-04-28 22:16:46,067 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 240 out of 344 [2021-04-28 22:16:46,068 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 170 transitions, 1502 flow. Second operand has 4 states, 4 states have (on average 241.0) internal successors, (964), 4 states have internal predecessors, (964), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:16:46,068 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-04-28 22:16:46,068 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 240 of 344 [2021-04-28 22:16:46,068 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-04-28 22:17:00,302 INFO L129 PetriNetUnfolder]: 59160/109065 cut-off events. [2021-04-28 22:17:00,303 INFO L130 PetriNetUnfolder]: For 204550/905078 co-relation queries the response was YES. [2021-04-28 22:17:01,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 486017 conditions, 109065 events. 59160/109065 cut-off events. For 204550/905078 co-relation queries the response was YES. Maximal size of possible extension queue 27843. Compared 1410821 event pairs, 0 based on Foata normal form. 121/29460 useless extension candidates. Maximal degree in co-relation 485980. Up to 69120 conditions per place. [2021-04-28 22:17:01,610 INFO L132 encePairwiseOnDemand]: 341/344 looper letters, 3 selfloop transitions, 2 changer transitions 0/171 dead transitions. [2021-04-28 22:17:01,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 171 transitions, 1514 flow [2021-04-28 22:17:01,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-04-28 22:17:01,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-04-28 22:17:01,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 966 transitions. [2021-04-28 22:17:01,616 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7020348837209303 [2021-04-28 22:17:01,616 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 966 transitions. [2021-04-28 22:17:01,616 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 966 transitions. [2021-04-28 22:17:01,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-04-28 22:17:01,617 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 966 transitions. [2021-04-28 22:17:01,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 241.5) internal successors, (966), 4 states have internal predecessors, (966), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:17:01,622 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:17:01,622 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 344.0) internal successors, (1720), 5 states have internal predecessors, (1720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-04-28 22:17:01,622 INFO L185 Difference]: Start difference. First operand has 112 places, 170 transitions, 1502 flow. Second operand 4 states and 966 transitions. [2021-04-28 22:17:01,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 171 transitions, 1514 flow Received shutdown request... Cannot interrupt operation gracefully because timeout expired. Forcing shutdown