/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-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-d5b4239aa45c8d22a30959944f2ef622f7386a6d-d5b4239 [2021-03-24 20:08:26,925 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-24 20:08:26,927 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-24 20:08:26,962 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-24 20:08:27,015 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-24 20:08:27,015 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-24 20:08:27,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-24 20:08:27,020 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-SemanticLbe.epf [2021-03-24 20:08:27,054 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-24 20:08:27,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-24 20:08:27,057 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-24 20:08:27,057 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-24 20:08:27,057 INFO L138 SettingsManager]: * Use SBE=true [2021-03-24 20:08:27,058 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-24 20:08:27,058 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-24 20:08:27,058 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-24 20:08:27,058 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-24 20:08:27,058 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-24 20:08:27,059 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-24 20:08:27,059 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-24 20:08:27,059 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-24 20:08:27,059 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-24 20:08:27,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-24 20:08:27,060 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-24 20:08:27,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-24 20:08:27,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-24 20:08:27,060 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-24 20:08:27,060 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-24 20:08:27,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-24 20:08:27,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-24 20:08:27,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-24 20:08:27,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-24 20:08:27,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-24 20:08:27,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-24 20:08:27,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-24 20:08:27,062 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-03-24 20:08:27,062 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-24 20:08:27,378 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-24 20:08:27,396 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-24 20:08:27,397 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-24 20:08:27,398 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-24 20:08:27,399 INFO L275 PluginConnector]: CDTParser initialized [2021-03-24 20:08:27,400 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-03-24 20:08:27,453 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62925e83/0a8524b91e054e568c36117c422e6a8c/FLAG5c676b687 [2021-03-24 20:08:27,984 INFO L306 CDTParser]: Found 1 translation units. [2021-03-24 20:08:27,985 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i [2021-03-24 20:08:28,005 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62925e83/0a8524b91e054e568c36117c422e6a8c/FLAG5c676b687 [2021-03-24 20:08:28,241 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b62925e83/0a8524b91e054e568c36117c422e6a8c [2021-03-24 20:08:28,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-24 20:08:28,246 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-24 20:08:28,248 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-24 20:08:28,249 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-24 20:08:28,251 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-24 20:08:28,252 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 08:08:28" (1/1) ... [2021-03-24 20:08:28,253 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@328b33b7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:28, skipping insertion in model container [2021-03-24 20:08:28,253 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.03 08:08:28" (1/1) ... [2021-03-24 20:08:28,258 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-24 20:08:28,312 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-24 20:08:28,717 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-03-24 20:08:28,734 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 20:08:28,739 INFO L203 MainTranslator]: Completed pre-run [2021-03-24 20:08:28,777 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_1-container_of.i[76077,76090] [2021-03-24 20:08:28,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-24 20:08:29,066 INFO L208 MainTranslator]: Completed translation [2021-03-24 20:08:29,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29 WrapperNode [2021-03-24 20:08:29,066 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-24 20:08:29,067 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-24 20:08:29,067 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-24 20:08:29,069 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-24 20:08:29,074 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,108 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-24 20:08:29,129 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-24 20:08:29,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-24 20:08:29,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-24 20:08:29,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,138 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,164 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,167 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (1/1) ... [2021-03-24 20:08:29,172 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-24 20:08:29,173 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-24 20:08:29,173 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-24 20:08:29,173 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-24 20:08:29,174 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (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 [2021-03-24 20:08:29,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-24 20:08:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-24 20:08:29,238 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-03-24 20:08:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-24 20:08:29,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-24 20:08:29,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-24 20:08:29,240 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-24 20:08:29,240 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-24 20:08:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-24 20:08:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-24 20:08:29,241 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-24 20:08:29,242 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-24 20:08:29,780 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-24 20:08:29,780 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-24 20:08:29,781 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 08:08:29 BoogieIcfgContainer [2021-03-24 20:08:29,782 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-24 20:08:29,783 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-24 20:08:29,783 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-24 20:08:29,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-24 20:08:29,785 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.03 08:08:28" (1/3) ... [2021-03-24 20:08:29,785 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a47228c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 08:08:29, skipping insertion in model container [2021-03-24 20:08:29,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.03 08:08:29" (2/3) ... [2021-03-24 20:08:29,786 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a47228c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.03 08:08:29, skipping insertion in model container [2021-03-24 20:08:29,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.03 08:08:29" (3/3) ... [2021-03-24 20:08:29,787 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_1-container_of.i [2021-03-24 20:08:29,791 INFO L149 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-24 20:08:29,794 INFO L161 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-24 20:08:29,795 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-24 20:08:29,819 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,819 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,819 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,819 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,819 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,820 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,820 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,820 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,820 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,820 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,820 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,820 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,821 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,822 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,823 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,824 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,825 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,826 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,826 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,826 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,826 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,826 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,826 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,826 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,827 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,828 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,829 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,830 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,831 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,832 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,833 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,834 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,834 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,834 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,834 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,834 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,834 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,834 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,835 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,836 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,837 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,838 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,839 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,839 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,839 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,842 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,842 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,843 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,844 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,844 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-24 20:08:29,849 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-24 20:08:29,862 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-24 20:08:29,876 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-24 20:08:29,876 INFO L377 AbstractCegarLoop]: Hoare is false [2021-03-24 20:08:29,876 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-24 20:08:29,876 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-24 20:08:29,877 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-24 20:08:29,877 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-24 20:08:29,877 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-24 20:08:29,877 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-24 20:08:29,888 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 161 places, 165 transitions, 352 flow [2021-03-24 20:08:29,953 INFO L129 PetriNetUnfolder]: 11/205 cut-off events. [2021-03-24 20:08:29,953 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 20:08:29,957 INFO L84 FinitePrefix]: Finished finitePrefix Result has 216 conditions, 205 events. 11/205 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 419 event pairs, 0 based on Foata normal form. 0/185 useless extension candidates. Maximal degree in co-relation 115. Up to 4 conditions per place. [2021-03-24 20:08:29,958 INFO L82 GeneralOperation]: Start removeDead. Operand has 161 places, 165 transitions, 352 flow [2021-03-24 20:08:29,962 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 151 places, 153 transitions, 324 flow [2021-03-24 20:08:29,963 INFO L165 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-24 20:08:29,977 INFO L137 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 151 places, 153 transitions, 324 flow [2021-03-24 20:08:29,979 INFO L129 LiptonReduction]: Starting Lipton reduction on Petri net that has 151 places, 153 transitions, 324 flow [2021-03-24 20:08:29,982 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 151 places, 153 transitions, 324 flow [2021-03-24 20:08:30,009 INFO L129 PetriNetUnfolder]: 8/186 cut-off events. [2021-03-24 20:08:30,009 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2021-03-24 20:08:30,010 INFO L84 FinitePrefix]: Finished finitePrefix Result has 197 conditions, 186 events. 8/186 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 360 event pairs, 0 based on Foata normal form. 0/171 useless extension candidates. Maximal degree in co-relation 105. Up to 4 conditions per place. [2021-03-24 20:08:30,013 INFO L142 LiptonReduction]: Number of co-enabled transitions 2492 [2021-03-24 20:08:39,766 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 22 DAG size of output: 20 [2021-03-24 20:08:46,796 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 30 [2021-03-24 20:09:12,763 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 28 [2021-03-24 20:09:35,668 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2021-03-24 20:09:44,853 INFO L154 LiptonReduction]: Checked pairs total: 3461 [2021-03-24 20:09:44,854 INFO L156 LiptonReduction]: Total number of compositions: 113 [2021-03-24 20:09:44,856 INFO L199 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 74894 [2021-03-24 20:09:44,867 INFO L129 PetriNetUnfolder]: 0/8 cut-off events. [2021-03-24 20:09:44,867 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-03-24 20:09:44,867 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:44,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:44,868 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:44,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:44,872 INFO L82 PathProgramCache]: Analyzing trace with hash 1316921901, now seen corresponding path program 1 times [2021-03-24 20:09:44,877 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:44,877 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040251024] [2021-03-24 20:09:44,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:45,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:45,191 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:45,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:09:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:45,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040251024] [2021-03-24 20:09:45,199 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:45,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 20:09:45,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1440662514] [2021-03-24 20:09:45,207 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 20:09:45,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:45,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 20:09:45,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 20:09:45,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 278 [2021-03-24 20:09:45,222 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 66 transitions, 150 flow. Second operand has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,223 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:45,223 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 278 [2021-03-24 20:09:45,223 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:45,317 INFO L129 PetriNetUnfolder]: 170/401 cut-off events. [2021-03-24 20:09:45,318 INFO L130 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2021-03-24 20:09:45,319 INFO L84 FinitePrefix]: Finished finitePrefix Result has 737 conditions, 401 events. 170/401 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1926 event pairs, 165 based on Foata normal form. 19/376 useless extension candidates. Maximal degree in co-relation 634. Up to 314 conditions per place. [2021-03-24 20:09:45,322 INFO L132 encePairwiseOnDemand]: 270/278 looper letters, 28 selfloop transitions, 4 changer transitions 3/65 dead transitions. [2021-03-24 20:09:45,322 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 65 transitions, 216 flow [2021-03-24 20:09:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 20:09:45,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 20:09:45,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 599 transitions. [2021-03-24 20:09:45,334 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7182254196642686 [2021-03-24 20:09:45,335 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 599 transitions. [2021-03-24 20:09:45,335 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 599 transitions. [2021-03-24 20:09:45,337 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:45,339 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 599 transitions. [2021-03-24 20:09:45,345 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,355 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,355 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,357 INFO L185 Difference]: Start difference. First operand has 66 places, 66 transitions, 150 flow. Second operand 3 states and 599 transitions. [2021-03-24 20:09:45,357 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 65 transitions, 216 flow [2021-03-24 20:09:45,365 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 65 transitions, 204 flow, removed 0 selfloop flow, removed 4 redundant places. [2021-03-24 20:09:45,367 INFO L241 Difference]: Finished difference. Result has 63 places, 62 transitions, 148 flow [2021-03-24 20:09:45,369 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=128, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=148, PETRI_PLACES=63, PETRI_TRANSITIONS=62} [2021-03-24 20:09:45,370 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -3 predicate places. [2021-03-24 20:09:45,370 INFO L480 AbstractCegarLoop]: Abstraction has has 63 places, 62 transitions, 148 flow [2021-03-24 20:09:45,370 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 189.0) internal successors, (567), 3 states have internal predecessors, (567), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,371 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:45,371 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:45,371 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-24 20:09:45,373 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:45,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:45,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1453419847, now seen corresponding path program 1 times [2021-03-24 20:09:45,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:45,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [838950314] [2021-03-24 20:09:45,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:45,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:45,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:45,483 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:09:45,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:45,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [838950314] [2021-03-24 20:09:45,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:45,487 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-03-24 20:09:45,487 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1719817866] [2021-03-24 20:09:45,488 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 20:09:45,488 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:45,492 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 20:09:45,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 20:09:45,495 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 278 [2021-03-24 20:09:45,495 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 62 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,495 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:45,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 278 [2021-03-24 20:09:45,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:45,610 INFO L129 PetriNetUnfolder]: 170/391 cut-off events. [2021-03-24 20:09:45,610 INFO L130 PetriNetUnfolder]: For 50/54 co-relation queries the response was YES. [2021-03-24 20:09:45,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 771 conditions, 391 events. 170/391 cut-off events. For 50/54 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 1829 event pairs, 165 based on Foata normal form. 2/370 useless extension candidates. Maximal degree in co-relation 700. Up to 314 conditions per place. [2021-03-24 20:09:45,614 INFO L132 encePairwiseOnDemand]: 273/278 looper letters, 27 selfloop transitions, 4 changer transitions 1/62 dead transitions. [2021-03-24 20:09:45,614 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 62 places, 62 transitions, 212 flow [2021-03-24 20:09:45,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 20:09:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 20:09:45,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 594 transitions. [2021-03-24 20:09:45,617 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7122302158273381 [2021-03-24 20:09:45,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 594 transitions. [2021-03-24 20:09:45,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 594 transitions. [2021-03-24 20:09:45,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:45,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 594 transitions. [2021-03-24 20:09:45,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 198.0) internal successors, (594), 3 states have internal predecessors, (594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,622 INFO L185 Difference]: Start difference. First operand has 63 places, 62 transitions, 148 flow. Second operand 3 states and 594 transitions. [2021-03-24 20:09:45,622 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 62 places, 62 transitions, 212 flow [2021-03-24 20:09:45,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 62 transitions, 208 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 20:09:45,624 INFO L241 Difference]: Finished difference. Result has 61 places, 61 transitions, 150 flow [2021-03-24 20:09:45,624 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=57, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=150, PETRI_PLACES=61, PETRI_TRANSITIONS=61} [2021-03-24 20:09:45,625 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -5 predicate places. [2021-03-24 20:09:45,625 INFO L480 AbstractCegarLoop]: Abstraction has has 61 places, 61 transitions, 150 flow [2021-03-24 20:09:45,625 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 189.33333333333334) internal successors, (568), 3 states have internal predecessors, (568), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,625 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:45,625 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:45,625 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-24 20:09:45,626 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:45,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:45,626 INFO L82 PathProgramCache]: Analyzing trace with hash 1837389700, now seen corresponding path program 1 times [2021-03-24 20:09:45,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:45,627 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525350549] [2021-03-24 20:09:45,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:45,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:45,714 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:45,719 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:45,723 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:09:45,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:45,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:45,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:45,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525350549] [2021-03-24 20:09:45,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:45,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 20:09:45,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [128046169] [2021-03-24 20:09:45,733 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 20:09:45,733 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:45,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 20:09:45,734 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 20:09:45,735 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 278 [2021-03-24 20:09:45,736 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 61 transitions, 150 flow. Second operand has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,736 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:45,736 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 278 [2021-03-24 20:09:45,736 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:45,931 INFO L129 PetriNetUnfolder]: 386/805 cut-off events. [2021-03-24 20:09:45,931 INFO L130 PetriNetUnfolder]: For 90/94 co-relation queries the response was YES. [2021-03-24 20:09:45,932 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1608 conditions, 805 events. 386/805 cut-off events. For 90/94 co-relation queries the response was YES. Maximal size of possible extension queue 72. Compared 4513 event pairs, 125 based on Foata normal form. 32/797 useless extension candidates. Maximal degree in co-relation 1535. Up to 492 conditions per place. [2021-03-24 20:09:45,936 INFO L132 encePairwiseOnDemand]: 270/278 looper letters, 40 selfloop transitions, 7 changer transitions 13/85 dead transitions. [2021-03-24 20:09:45,936 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 85 transitions, 324 flow [2021-03-24 20:09:45,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 20:09:45,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 20:09:45,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 834 transitions. [2021-03-24 20:09:45,938 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.6 [2021-03-24 20:09:45,939 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 834 transitions. [2021-03-24 20:09:45,939 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 834 transitions. [2021-03-24 20:09:45,939 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:45,939 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 834 transitions. [2021-03-24 20:09:45,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.8) internal successors, (834), 5 states have internal predecessors, (834), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,944 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,944 INFO L185 Difference]: Start difference. First operand has 61 places, 61 transitions, 150 flow. Second operand 5 states and 834 transitions. [2021-03-24 20:09:45,944 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 85 transitions, 324 flow [2021-03-24 20:09:45,946 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 63 places, 85 transitions, 316 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-03-24 20:09:45,954 INFO L241 Difference]: Finished difference. Result has 66 places, 65 transitions, 195 flow [2021-03-24 20:09:45,954 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=142, PETRI_DIFFERENCE_MINUEND_PLACES=59, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=61, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=195, PETRI_PLACES=66, PETRI_TRANSITIONS=65} [2021-03-24 20:09:45,954 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 0 predicate places. [2021-03-24 20:09:45,954 INFO L480 AbstractCegarLoop]: Abstraction has has 66 places, 65 transitions, 195 flow [2021-03-24 20:09:45,955 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 157.75) internal successors, (631), 4 states have internal predecessors, (631), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:45,955 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:45,955 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] [2021-03-24 20:09:45,955 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-24 20:09:45,955 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:45,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:45,958 INFO L82 PathProgramCache]: Analyzing trace with hash -1826966677, now seen corresponding path program 1 times [2021-03-24 20:09:45,958 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:45,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358859354] [2021-03-24 20:09:45,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:46,029 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:46,031 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:09:46,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:46,038 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:46,038 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358859354] [2021-03-24 20:09:46,039 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:46,039 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 20:09:46,039 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062279634] [2021-03-24 20:09:46,039 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-03-24 20:09:46,039 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:46,040 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-03-24 20:09:46,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-03-24 20:09:46,041 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 155 out of 278 [2021-03-24 20:09:46,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 65 transitions, 195 flow. Second operand has 4 states, 4 states have (on average 158.25) internal successors, (633), 4 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:46,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 155 of 278 [2021-03-24 20:09:46,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:46,218 INFO L129 PetriNetUnfolder]: 455/929 cut-off events. [2021-03-24 20:09:46,219 INFO L130 PetriNetUnfolder]: For 831/841 co-relation queries the response was YES. [2021-03-24 20:09:46,220 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2636 conditions, 929 events. 455/929 cut-off events. For 831/841 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5319 event pairs, 145 based on Foata normal form. 47/970 useless extension candidates. Maximal degree in co-relation 2359. Up to 541 conditions per place. [2021-03-24 20:09:46,225 INFO L132 encePairwiseOnDemand]: 271/278 looper letters, 42 selfloop transitions, 9 changer transitions 23/96 dead transitions. [2021-03-24 20:09:46,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 96 transitions, 487 flow [2021-03-24 20:09:46,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-24 20:09:46,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2021-03-24 20:09:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 833 transitions. [2021-03-24 20:09:46,227 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.5992805755395684 [2021-03-24 20:09:46,227 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 833 transitions. [2021-03-24 20:09:46,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 833 transitions. [2021-03-24 20:09:46,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:46,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 833 transitions. [2021-03-24 20:09:46,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 166.6) internal successors, (833), 5 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,233 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 278.0) internal successors, (1668), 6 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,233 INFO L185 Difference]: Start difference. First operand has 66 places, 65 transitions, 195 flow. Second operand 5 states and 833 transitions. [2021-03-24 20:09:46,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 96 transitions, 487 flow [2021-03-24 20:09:46,238 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 96 transitions, 462 flow, removed 5 selfloop flow, removed 2 redundant places. [2021-03-24 20:09:46,240 INFO L241 Difference]: Finished difference. Result has 69 places, 67 transitions, 273 flow [2021-03-24 20:09:46,240 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=273, PETRI_PLACES=69, PETRI_TRANSITIONS=67} [2021-03-24 20:09:46,240 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 3 predicate places. [2021-03-24 20:09:46,240 INFO L480 AbstractCegarLoop]: Abstraction has has 69 places, 67 transitions, 273 flow [2021-03-24 20:09:46,241 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 4 states, 4 states have (on average 158.25) internal successors, (633), 4 states have internal predecessors, (633), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,241 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:46,241 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] [2021-03-24 20:09:46,241 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-24 20:09:46,241 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:46,242 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:46,242 INFO L82 PathProgramCache]: Analyzing trace with hash 2038980540, now seen corresponding path program 1 times [2021-03-24 20:09:46,242 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:46,242 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328201164] [2021-03-24 20:09:46,243 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:46,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:46,299 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:46,300 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:46,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:46,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328201164] [2021-03-24 20:09:46,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:46,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-03-24 20:09:46,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118848135] [2021-03-24 20:09:46,305 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-03-24 20:09:46,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:46,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-03-24 20:09:46,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-03-24 20:09:46,307 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 234 out of 278 [2021-03-24 20:09:46,308 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 69 places, 67 transitions, 273 flow. Second operand has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,308 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:46,308 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 234 of 278 [2021-03-24 20:09:46,308 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:46,324 INFO L129 PetriNetUnfolder]: 6/69 cut-off events. [2021-03-24 20:09:46,324 INFO L130 PetriNetUnfolder]: For 83/105 co-relation queries the response was YES. [2021-03-24 20:09:46,324 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 69 events. 6/69 cut-off events. For 83/105 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 140 event pairs, 4 based on Foata normal form. 15/82 useless extension candidates. Maximal degree in co-relation 134. Up to 14 conditions per place. [2021-03-24 20:09:46,325 INFO L132 encePairwiseOnDemand]: 276/278 looper letters, 3 selfloop transitions, 1 changer transitions 0/46 dead transitions. [2021-03-24 20:09:46,325 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 46 transitions, 148 flow [2021-03-24 20:09:46,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-03-24 20:09:46,326 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-03-24 20:09:46,327 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 707 transitions. [2021-03-24 20:09:46,327 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.8477218225419664 [2021-03-24 20:09:46,327 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 707 transitions. [2021-03-24 20:09:46,328 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 707 transitions. [2021-03-24 20:09:46,328 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:46,328 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 707 transitions. [2021-03-24 20:09:46,329 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 235.66666666666666) internal successors, (707), 3 states have internal predecessors, (707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,332 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 278.0) internal successors, (1112), 4 states have internal predecessors, (1112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,332 INFO L185 Difference]: Start difference. First operand has 69 places, 67 transitions, 273 flow. Second operand 3 states and 707 transitions. [2021-03-24 20:09:46,332 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 46 transitions, 148 flow [2021-03-24 20:09:46,333 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 46 transitions, 124 flow, removed 12 selfloop flow, removed 3 redundant places. [2021-03-24 20:09:46,336 INFO L241 Difference]: Finished difference. Result has 52 places, 46 transitions, 118 flow [2021-03-24 20:09:46,336 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=116, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=118, PETRI_PLACES=52, PETRI_TRANSITIONS=46} [2021-03-24 20:09:46,336 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -14 predicate places. [2021-03-24 20:09:46,336 INFO L480 AbstractCegarLoop]: Abstraction has has 52 places, 46 transitions, 118 flow [2021-03-24 20:09:46,337 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 235.33333333333334) internal successors, (706), 3 states have internal predecessors, (706), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,337 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:46,337 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:46,337 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-24 20:09:46,337 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:46,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:46,337 INFO L82 PathProgramCache]: Analyzing trace with hash -1788791090, now seen corresponding path program 1 times [2021-03-24 20:09:46,338 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:46,338 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59213170] [2021-03-24 20:09:46,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:46,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:46,547 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:46,549 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:46,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:46,556 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:46,563 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:46,574 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:09:46,584 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:46,605 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:46,625 INFO L142 QuantifierPusher]: treesize reduction 12, result has 70.7 percent of original size [2021-03-24 20:09:46,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:09:46,668 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 20:09:46,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:46,712 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 20:09:46,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:46,760 INFO L142 QuantifierPusher]: treesize reduction 27, result has 63.0 percent of original size [2021-03-24 20:09:46,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:09:46,765 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:09:46,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:46,766 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:46,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:46,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:46,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59213170] [2021-03-24 20:09:46,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:46,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 20:09:46,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765230224] [2021-03-24 20:09:46,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 20:09:46,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:46,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 20:09:46,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 20:09:46,788 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 278 [2021-03-24 20:09:46,791 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 46 transitions, 118 flow. Second operand has 11 states, 11 states have (on average 204.54545454545453) internal successors, (2250), 11 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:46,792 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:46,792 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 278 [2021-03-24 20:09:46,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:47,183 INFO L129 PetriNetUnfolder]: 27/141 cut-off events. [2021-03-24 20:09:47,183 INFO L130 PetriNetUnfolder]: For 9/13 co-relation queries the response was YES. [2021-03-24 20:09:47,184 INFO L84 FinitePrefix]: Finished finitePrefix Result has 259 conditions, 141 events. 27/141 cut-off events. For 9/13 co-relation queries the response was YES. Maximal size of possible extension queue 13. Compared 517 event pairs, 4 based on Foata normal form. 7/143 useless extension candidates. Maximal degree in co-relation 252. Up to 24 conditions per place. [2021-03-24 20:09:47,184 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 23 selfloop transitions, 11 changer transitions 0/63 dead transitions. [2021-03-24 20:09:47,185 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 63 transitions, 228 flow [2021-03-24 20:09:47,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:09:47,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:09:47,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2065 transitions. [2021-03-24 20:09:47,189 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7428057553956835 [2021-03-24 20:09:47,189 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2065 transitions. [2021-03-24 20:09:47,189 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2065 transitions. [2021-03-24 20:09:47,190 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:47,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2065 transitions. [2021-03-24 20:09:47,194 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.5) internal successors, (2065), 10 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:47,198 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:47,200 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:47,200 INFO L185 Difference]: Start difference. First operand has 52 places, 46 transitions, 118 flow. Second operand 10 states and 2065 transitions. [2021-03-24 20:09:47,200 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 63 transitions, 228 flow [2021-03-24 20:09:47,201 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 63 transitions, 227 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-03-24 20:09:47,202 INFO L241 Difference]: Finished difference. Result has 62 places, 50 transitions, 161 flow [2021-03-24 20:09:47,202 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=117, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=46, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=161, PETRI_PLACES=62, PETRI_TRANSITIONS=50} [2021-03-24 20:09:47,202 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, -4 predicate places. [2021-03-24 20:09:47,202 INFO L480 AbstractCegarLoop]: Abstraction has has 62 places, 50 transitions, 161 flow [2021-03-24 20:09:47,203 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 204.54545454545453) internal successors, (2250), 11 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:47,203 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:47,203 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:47,203 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-24 20:09:47,203 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:47,204 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:47,204 INFO L82 PathProgramCache]: Analyzing trace with hash 685893476, now seen corresponding path program 1 times [2021-03-24 20:09:47,204 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:47,204 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1152072244] [2021-03-24 20:09:47,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:47,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:47,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:47,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 5 [2021-03-24 20:09:47,330 INFO L142 QuantifierPusher]: treesize reduction 12, result has 53.8 percent of original size [2021-03-24 20:09:47,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:47,338 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:47,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:47,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:47,374 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:47,389 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:47,406 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:47,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:47,447 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:09:47,461 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:09:47,477 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:09:47,491 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:47,513 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:47,531 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:09:47,555 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:47,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:09:47,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:47,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 20:09:47,620 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:47,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:47,640 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:47,655 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:47,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:47,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:47,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1152072244] [2021-03-24 20:09:47,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:47,656 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-24 20:09:47,656 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923342021] [2021-03-24 20:09:47,656 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-24 20:09:47,656 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:47,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-24 20:09:47,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=229, Unknown=0, NotChecked=0, Total=272 [2021-03-24 20:09:47,660 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 131 out of 278 [2021-03-24 20:09:47,662 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 62 places, 50 transitions, 161 flow. Second operand has 17 states, 17 states have (on average 132.88235294117646) internal successors, (2259), 17 states have internal predecessors, (2259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:47,662 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:47,662 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 131 of 278 [2021-03-24 20:09:47,662 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:49,412 INFO L129 PetriNetUnfolder]: 182/399 cut-off events. [2021-03-24 20:09:49,412 INFO L130 PetriNetUnfolder]: For 215/215 co-relation queries the response was YES. [2021-03-24 20:09:49,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1062 conditions, 399 events. 182/399 cut-off events. For 215/215 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1601 event pairs, 3 based on Foata normal form. 1/399 useless extension candidates. Maximal degree in co-relation 1053. Up to 148 conditions per place. [2021-03-24 20:09:49,415 INFO L132 encePairwiseOnDemand]: 264/278 looper letters, 80 selfloop transitions, 42 changer transitions 10/141 dead transitions. [2021-03-24 20:09:49,415 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 89 places, 141 transitions, 771 flow [2021-03-24 20:09:49,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-24 20:09:49,415 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2021-03-24 20:09:49,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 3791 transitions. [2021-03-24 20:09:49,423 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4870246659815005 [2021-03-24 20:09:49,423 INFO L72 ComplementDD]: Start complementDD. Operand 28 states and 3791 transitions. [2021-03-24 20:09:49,423 INFO L73 IsDeterministic]: Start isDeterministic. Operand 28 states and 3791 transitions. [2021-03-24 20:09:49,452 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:49,453 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 28 states and 3791 transitions. [2021-03-24 20:09:49,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 29 states, 28 states have (on average 135.39285714285714) internal successors, (3791), 28 states have internal predecessors, (3791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:49,468 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 29 states, 29 states have (on average 278.0) internal successors, (8062), 29 states have internal predecessors, (8062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:49,471 INFO L81 ComplementDD]: Finished complementDD. Result has 29 states, 29 states have (on average 278.0) internal successors, (8062), 29 states have internal predecessors, (8062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:49,471 INFO L185 Difference]: Start difference. First operand has 62 places, 50 transitions, 161 flow. Second operand 28 states and 3791 transitions. [2021-03-24 20:09:49,471 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 89 places, 141 transitions, 771 flow [2021-03-24 20:09:49,473 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 141 transitions, 750 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-03-24 20:09:49,475 INFO L241 Difference]: Finished difference. Result has 83 places, 76 transitions, 321 flow [2021-03-24 20:09:49,475 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=147, PETRI_DIFFERENCE_MINUEND_PLACES=56, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=34, PETRI_DIFFERENCE_SUBTRAHEND_STATES=28, PETRI_FLOW=321, PETRI_PLACES=83, PETRI_TRANSITIONS=76} [2021-03-24 20:09:49,475 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 17 predicate places. [2021-03-24 20:09:49,476 INFO L480 AbstractCegarLoop]: Abstraction has has 83 places, 76 transitions, 321 flow [2021-03-24 20:09:49,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 132.88235294117646) internal successors, (2259), 17 states have internal predecessors, (2259), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:49,476 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:49,477 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:49,477 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-24 20:09:49,477 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:49,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:49,477 INFO L82 PathProgramCache]: Analyzing trace with hash 1595848208, now seen corresponding path program 2 times [2021-03-24 20:09:49,477 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:49,477 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969223868] [2021-03-24 20:09:49,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:49,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:49,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:49,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:49,623 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:49,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:49,633 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:49,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:49,642 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 20:09:49,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:09:49,658 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:49,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:49,672 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:49,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:49,691 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 20:09:49,692 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:09:49,727 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 20:09:49,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:09:49,772 INFO L142 QuantifierPusher]: treesize reduction 23, result has 69.3 percent of original size [2021-03-24 20:09:49,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:09:49,788 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 20:09:49,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:09:49,791 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:49,792 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:49,809 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:49,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:49,827 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:49,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:49,828 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 20:09:49,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:49,845 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:49,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:49,860 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:49,860 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969223868] [2021-03-24 20:09:49,860 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:49,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 20:09:49,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [404083773] [2021-03-24 20:09:49,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:09:49,861 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:49,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:09:49,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:09:49,863 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 278 [2021-03-24 20:09:49,865 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 83 places, 76 transitions, 321 flow. Second operand has 13 states, 13 states have (on average 124.23076923076923) internal successors, (1615), 13 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:49,865 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:49,865 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 278 [2021-03-24 20:09:49,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:50,394 INFO L129 PetriNetUnfolder]: 181/480 cut-off events. [2021-03-24 20:09:50,394 INFO L130 PetriNetUnfolder]: For 254/266 co-relation queries the response was YES. [2021-03-24 20:09:50,395 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1329 conditions, 480 events. 181/480 cut-off events. For 254/266 co-relation queries the response was YES. Maximal size of possible extension queue 34. Compared 2447 event pairs, 17 based on Foata normal form. 12/487 useless extension candidates. Maximal degree in co-relation 1320. Up to 137 conditions per place. [2021-03-24 20:09:50,397 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 61 selfloop transitions, 24 changer transitions 0/110 dead transitions. [2021-03-24 20:09:50,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 90 places, 110 transitions, 612 flow [2021-03-24 20:09:50,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:09:50,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:09:50,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1283 transitions. [2021-03-24 20:09:50,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4615107913669065 [2021-03-24 20:09:50,402 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1283 transitions. [2021-03-24 20:09:50,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1283 transitions. [2021-03-24 20:09:50,403 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:50,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1283 transitions. [2021-03-24 20:09:50,405 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 128.3) internal successors, (1283), 10 states have internal predecessors, (1283), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:50,409 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:50,409 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:50,409 INFO L185 Difference]: Start difference. First operand has 83 places, 76 transitions, 321 flow. Second operand 10 states and 1283 transitions. [2021-03-24 20:09:50,409 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 90 places, 110 transitions, 612 flow [2021-03-24 20:09:50,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 110 transitions, 536 flow, removed 8 selfloop flow, removed 11 redundant places. [2021-03-24 20:09:50,415 INFO L241 Difference]: Finished difference. Result has 82 places, 85 transitions, 358 flow [2021-03-24 20:09:50,415 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=248, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=358, PETRI_PLACES=82, PETRI_TRANSITIONS=85} [2021-03-24 20:09:50,415 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 16 predicate places. [2021-03-24 20:09:50,415 INFO L480 AbstractCegarLoop]: Abstraction has has 82 places, 85 transitions, 358 flow [2021-03-24 20:09:50,416 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 124.23076923076923) internal successors, (1615), 13 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:50,416 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:50,416 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:50,416 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-24 20:09:50,416 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:50,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:50,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1634819724, now seen corresponding path program 3 times [2021-03-24 20:09:50,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:50,417 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401885632] [2021-03-24 20:09:50,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:50,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:50,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:50,566 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:50,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:50,573 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:50,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:09:50,600 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:50,614 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:50,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:09:50,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:50,641 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:50,661 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 20:09:50,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:50,718 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 20:09:50,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:50,760 INFO L142 QuantifierPusher]: treesize reduction 25, result has 68.8 percent of original size [2021-03-24 20:09:50,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:09:50,815 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 20:09:50,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:09:50,818 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:09:50,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:50,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:50,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:50,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:50,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401885632] [2021-03-24 20:09:50,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:50,822 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:09:50,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168350698] [2021-03-24 20:09:50,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:09:50,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:50,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:09:50,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:09:50,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 110 out of 278 [2021-03-24 20:09:50,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 82 places, 85 transitions, 358 flow. Second operand has 13 states, 13 states have (on average 112.46153846153847) internal successors, (1462), 13 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:50,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:50,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 110 of 278 [2021-03-24 20:09:50,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:51,629 INFO L129 PetriNetUnfolder]: 267/629 cut-off events. [2021-03-24 20:09:51,629 INFO L130 PetriNetUnfolder]: For 762/778 co-relation queries the response was YES. [2021-03-24 20:09:51,631 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2058 conditions, 629 events. 267/629 cut-off events. For 762/778 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3354 event pairs, 67 based on Foata normal form. 19/646 useless extension candidates. Maximal degree in co-relation 2046. Up to 316 conditions per place. [2021-03-24 20:09:51,633 INFO L132 encePairwiseOnDemand]: 262/278 looper letters, 78 selfloop transitions, 33 changer transitions 6/125 dead transitions. [2021-03-24 20:09:51,633 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 96 places, 125 transitions, 794 flow [2021-03-24 20:09:51,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-03-24 20:09:51,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2021-03-24 20:09:51,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1727 transitions. [2021-03-24 20:09:51,638 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4141486810551559 [2021-03-24 20:09:51,638 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1727 transitions. [2021-03-24 20:09:51,638 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1727 transitions. [2021-03-24 20:09:51,639 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:51,639 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1727 transitions. [2021-03-24 20:09:51,642 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 115.13333333333334) internal successors, (1727), 15 states have internal predecessors, (1727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:51,658 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 278.0) internal successors, (4448), 16 states have internal predecessors, (4448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:51,660 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 278.0) internal successors, (4448), 16 states have internal predecessors, (4448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:51,660 INFO L185 Difference]: Start difference. First operand has 82 places, 85 transitions, 358 flow. Second operand 15 states and 1727 transitions. [2021-03-24 20:09:51,660 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 96 places, 125 transitions, 794 flow [2021-03-24 20:09:51,662 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 125 transitions, 768 flow, removed 0 selfloop flow, removed 5 redundant places. [2021-03-24 20:09:51,664 INFO L241 Difference]: Finished difference. Result has 94 places, 92 transitions, 464 flow [2021-03-24 20:09:51,664 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=464, PETRI_PLACES=94, PETRI_TRANSITIONS=92} [2021-03-24 20:09:51,665 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 28 predicate places. [2021-03-24 20:09:51,665 INFO L480 AbstractCegarLoop]: Abstraction has has 94 places, 92 transitions, 464 flow [2021-03-24 20:09:51,665 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 112.46153846153847) internal successors, (1462), 13 states have internal predecessors, (1462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:51,665 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:51,665 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:51,666 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-24 20:09:51,666 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:51,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:51,666 INFO L82 PathProgramCache]: Analyzing trace with hash -1280704754, now seen corresponding path program 4 times [2021-03-24 20:09:51,667 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:51,667 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621912994] [2021-03-24 20:09:51,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:51,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:51,814 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:51,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:51,818 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:51,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:51,828 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:51,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:51,838 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 20:09:51,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:09:51,853 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:51,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:51,867 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:51,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:51,882 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 20:09:51,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:09:51,932 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:09:51,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:09:51,971 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:51,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:52,015 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 20:09:52,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:09:52,032 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:52,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:52,033 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:52,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:52,049 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 20:09:52,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:52,068 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:52,081 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:52,081 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621912994] [2021-03-24 20:09:52,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:52,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 20:09:52,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403039161] [2021-03-24 20:09:52,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:09:52,082 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:52,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:09:52,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:09:52,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 278 [2021-03-24 20:09:52,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 92 transitions, 464 flow. Second operand has 13 states, 13 states have (on average 124.23076923076923) internal successors, (1615), 13 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:52,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:52,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 278 [2021-03-24 20:09:52,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:52,681 INFO L129 PetriNetUnfolder]: 280/779 cut-off events. [2021-03-24 20:09:52,681 INFO L130 PetriNetUnfolder]: For 1031/1061 co-relation queries the response was YES. [2021-03-24 20:09:52,684 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2579 conditions, 779 events. 280/779 cut-off events. For 1031/1061 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 4847 event pairs, 21 based on Foata normal form. 28/803 useless extension candidates. Maximal degree in co-relation 2564. Up to 238 conditions per place. [2021-03-24 20:09:52,687 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 77 selfloop transitions, 36 changer transitions 0/141 dead transitions. [2021-03-24 20:09:52,687 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 141 transitions, 919 flow [2021-03-24 20:09:52,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 20:09:52,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 20:09:52,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1420 transitions. [2021-03-24 20:09:52,690 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4643557880967953 [2021-03-24 20:09:52,690 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1420 transitions. [2021-03-24 20:09:52,691 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1420 transitions. [2021-03-24 20:09:52,691 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:52,691 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1420 transitions. [2021-03-24 20:09:52,693 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 129.0909090909091) internal successors, (1420), 11 states have internal predecessors, (1420), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:52,697 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 278.0) internal successors, (3336), 12 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:52,697 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 278.0) internal successors, (3336), 12 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:52,698 INFO L185 Difference]: Start difference. First operand has 94 places, 92 transitions, 464 flow. Second operand 11 states and 1420 transitions. [2021-03-24 20:09:52,698 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 141 transitions, 919 flow [2021-03-24 20:09:52,701 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 141 transitions, 883 flow, removed 2 selfloop flow, removed 10 redundant places. [2021-03-24 20:09:52,704 INFO L241 Difference]: Finished difference. Result has 97 places, 100 transitions, 576 flow [2021-03-24 20:09:52,704 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=428, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=576, PETRI_PLACES=97, PETRI_TRANSITIONS=100} [2021-03-24 20:09:52,704 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 31 predicate places. [2021-03-24 20:09:52,704 INFO L480 AbstractCegarLoop]: Abstraction has has 97 places, 100 transitions, 576 flow [2021-03-24 20:09:52,705 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 124.23076923076923) internal successors, (1615), 13 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:52,705 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:52,705 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:52,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-24 20:09:52,705 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:52,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:52,706 INFO L82 PathProgramCache]: Analyzing trace with hash 935546746, now seen corresponding path program 5 times [2021-03-24 20:09:52,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:52,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2130647704] [2021-03-24 20:09:52,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:52,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:52,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:52,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:52,796 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:52,799 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:52,803 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:52,813 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:09:52,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:52,834 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:52,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:52,862 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 20:09:52,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:52,897 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:09:52,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:09:52,949 INFO L142 QuantifierPusher]: treesize reduction 27, result has 63.0 percent of original size [2021-03-24 20:09:52,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:09:52,954 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-24 20:09:52,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:52,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:52,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:52,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:52,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2130647704] [2021-03-24 20:09:52,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:52,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 20:09:52,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1369697140] [2021-03-24 20:09:52,956 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 20:09:52,956 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:52,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 20:09:52,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 20:09:52,959 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 278 [2021-03-24 20:09:52,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 100 transitions, 576 flow. Second operand has 11 states, 11 states have (on average 196.8181818181818) internal successors, (2165), 11 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:52,961 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:52,961 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 278 [2021-03-24 20:09:52,961 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:53,526 INFO L129 PetriNetUnfolder]: 295/1075 cut-off events. [2021-03-24 20:09:53,526 INFO L130 PetriNetUnfolder]: For 2234/2289 co-relation queries the response was YES. [2021-03-24 20:09:53,530 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3862 conditions, 1075 events. 295/1075 cut-off events. For 2234/2289 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8571 event pairs, 71 based on Foata normal form. 17/1073 useless extension candidates. Maximal degree in co-relation 3844. Up to 332 conditions per place. [2021-03-24 20:09:53,534 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 81 selfloop transitions, 25 changer transitions 1/151 dead transitions. [2021-03-24 20:09:53,534 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 151 transitions, 1163 flow [2021-03-24 20:09:53,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:09:53,535 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:09:53,539 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2003 transitions. [2021-03-24 20:09:53,540 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7205035971223022 [2021-03-24 20:09:53,540 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2003 transitions. [2021-03-24 20:09:53,540 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2003 transitions. [2021-03-24 20:09:53,541 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:53,541 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2003 transitions. [2021-03-24 20:09:53,545 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.3) internal successors, (2003), 10 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:53,549 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:53,550 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:53,550 INFO L185 Difference]: Start difference. First operand has 97 places, 100 transitions, 576 flow. Second operand 10 states and 2003 transitions. [2021-03-24 20:09:53,550 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 151 transitions, 1163 flow [2021-03-24 20:09:53,555 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 151 transitions, 1120 flow, removed 6 selfloop flow, removed 5 redundant places. [2021-03-24 20:09:53,557 INFO L241 Difference]: Finished difference. Result has 104 places, 110 transitions, 713 flow [2021-03-24 20:09:53,557 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=546, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=100, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=76, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=713, PETRI_PLACES=104, PETRI_TRANSITIONS=110} [2021-03-24 20:09:53,558 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 38 predicate places. [2021-03-24 20:09:53,558 INFO L480 AbstractCegarLoop]: Abstraction has has 104 places, 110 transitions, 713 flow [2021-03-24 20:09:53,558 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 196.8181818181818) internal successors, (2165), 11 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:53,558 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:53,558 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:53,558 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-24 20:09:53,559 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:53,559 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:53,559 INFO L82 PathProgramCache]: Analyzing trace with hash 1031160992, now seen corresponding path program 6 times [2021-03-24 20:09:53,559 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:53,559 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880021319] [2021-03-24 20:09:53,559 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:53,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:53,646 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:53,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:53,647 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:53,650 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:53,656 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:53,666 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:09:53,674 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:53,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:53,701 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:53,716 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 20:09:53,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:53,759 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:09:53,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:09:53,818 INFO L142 QuantifierPusher]: treesize reduction 27, result has 63.0 percent of original size [2021-03-24 20:09:53,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:09:53,820 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-24 20:09:53,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:53,821 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:53,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:53,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:53,822 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880021319] [2021-03-24 20:09:53,822 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:53,823 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 20:09:53,823 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939896805] [2021-03-24 20:09:53,823 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 20:09:53,823 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:53,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 20:09:53,823 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-24 20:09:53,825 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 278 [2021-03-24 20:09:53,827 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 110 transitions, 713 flow. Second operand has 11 states, 11 states have (on average 196.8181818181818) internal successors, (2165), 11 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:53,827 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:53,827 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 278 [2021-03-24 20:09:53,827 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:54,400 INFO L129 PetriNetUnfolder]: 289/1075 cut-off events. [2021-03-24 20:09:54,400 INFO L130 PetriNetUnfolder]: For 2967/3047 co-relation queries the response was YES. [2021-03-24 20:09:54,404 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4116 conditions, 1075 events. 289/1075 cut-off events. For 2967/3047 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 8604 event pairs, 78 based on Foata normal form. 21/1078 useless extension candidates. Maximal degree in co-relation 4095. Up to 330 conditions per place. [2021-03-24 20:09:54,409 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 83 selfloop transitions, 24 changer transitions 1/152 dead transitions. [2021-03-24 20:09:54,409 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 152 transitions, 1237 flow [2021-03-24 20:09:54,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:09:54,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:09:54,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2002 transitions. [2021-03-24 20:09:54,414 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7201438848920864 [2021-03-24 20:09:54,414 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2002 transitions. [2021-03-24 20:09:54,414 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2002 transitions. [2021-03-24 20:09:54,415 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:54,415 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2002 transitions. [2021-03-24 20:09:54,420 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.2) internal successors, (2002), 10 states have internal predecessors, (2002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:54,424 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:54,424 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:54,424 INFO L185 Difference]: Start difference. First operand has 104 places, 110 transitions, 713 flow. Second operand 10 states and 2002 transitions. [2021-03-24 20:09:54,424 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 152 transitions, 1237 flow [2021-03-24 20:09:54,432 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 152 transitions, 1211 flow, removed 5 selfloop flow, removed 5 redundant places. [2021-03-24 20:09:54,434 INFO L241 Difference]: Finished difference. Result has 110 places, 114 transitions, 793 flow [2021-03-24 20:09:54,434 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=687, PETRI_DIFFERENCE_MINUEND_PLACES=99, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=793, PETRI_PLACES=110, PETRI_TRANSITIONS=114} [2021-03-24 20:09:54,434 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 44 predicate places. [2021-03-24 20:09:54,434 INFO L480 AbstractCegarLoop]: Abstraction has has 110 places, 114 transitions, 793 flow [2021-03-24 20:09:54,435 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 196.8181818181818) internal successors, (2165), 11 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:54,435 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:54,435 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:54,435 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-24 20:09:54,435 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:54,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:54,435 INFO L82 PathProgramCache]: Analyzing trace with hash -985816350, now seen corresponding path program 7 times [2021-03-24 20:09:54,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:54,436 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917642454] [2021-03-24 20:09:54,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:54,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:54,552 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:54,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:54,556 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:54,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:54,564 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:54,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:54,576 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 20:09:54,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:09:54,590 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:54,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:54,604 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:54,605 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:54,618 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:54,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:54,633 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:09:54,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:09:54,667 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:54,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:54,713 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 20:09:54,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:09:54,730 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:54,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:54,732 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:54,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:54,748 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 20:09:54,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:54,762 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:54,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:54,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:54,775 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917642454] [2021-03-24 20:09:54,775 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:54,775 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-03-24 20:09:54,775 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [356626736] [2021-03-24 20:09:54,776 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:09:54,776 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:54,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:09:54,777 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:09:54,778 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 122 out of 278 [2021-03-24 20:09:54,779 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 114 transitions, 793 flow. Second operand has 13 states, 13 states have (on average 124.23076923076923) internal successors, (1615), 13 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:54,779 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:54,779 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 122 of 278 [2021-03-24 20:09:54,779 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:55,453 INFO L129 PetriNetUnfolder]: 513/1449 cut-off events. [2021-03-24 20:09:55,453 INFO L130 PetriNetUnfolder]: For 4129/4180 co-relation queries the response was YES. [2021-03-24 20:09:55,459 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5621 conditions, 1449 events. 513/1449 cut-off events. For 4129/4180 co-relation queries the response was YES. Maximal size of possible extension queue 124. Compared 10909 event pairs, 115 based on Foata normal form. 20/1457 useless extension candidates. Maximal degree in co-relation 5598. Up to 665 conditions per place. [2021-03-24 20:09:55,465 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 88 selfloop transitions, 32 changer transitions 0/157 dead transitions. [2021-03-24 20:09:55,465 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 157 transitions, 1297 flow [2021-03-24 20:09:55,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 20:09:55,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 20:09:55,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1410 transitions. [2021-03-24 20:09:55,469 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.46108567691301505 [2021-03-24 20:09:55,469 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1410 transitions. [2021-03-24 20:09:55,469 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1410 transitions. [2021-03-24 20:09:55,469 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:55,469 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1410 transitions. [2021-03-24 20:09:55,471 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 128.1818181818182) internal successors, (1410), 11 states have internal predecessors, (1410), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:55,476 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 278.0) internal successors, (3336), 12 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:55,477 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 278.0) internal successors, (3336), 12 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:55,477 INFO L185 Difference]: Start difference. First operand has 110 places, 114 transitions, 793 flow. Second operand 11 states and 1410 transitions. [2021-03-24 20:09:55,477 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 157 transitions, 1297 flow [2021-03-24 20:09:55,487 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 157 transitions, 1232 flow, removed 17 selfloop flow, removed 6 redundant places. [2021-03-24 20:09:55,489 INFO L241 Difference]: Finished difference. Result has 117 places, 119 transitions, 865 flow [2021-03-24 20:09:55,489 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=737, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=865, PETRI_PLACES=117, PETRI_TRANSITIONS=119} [2021-03-24 20:09:55,490 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 51 predicate places. [2021-03-24 20:09:55,490 INFO L480 AbstractCegarLoop]: Abstraction has has 117 places, 119 transitions, 865 flow [2021-03-24 20:09:55,490 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 124.23076923076923) internal successors, (1615), 13 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:55,490 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:55,490 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:55,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-24 20:09:55,490 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:55,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:55,491 INFO L82 PathProgramCache]: Analyzing trace with hash 1363455586, now seen corresponding path program 8 times [2021-03-24 20:09:55,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:55,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46197721] [2021-03-24 20:09:55,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:55,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:55,582 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:55,582 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:55,583 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:55,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:55,592 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:55,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:55,601 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 20:09:55,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:09:55,614 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:55,616 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:55,629 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:55,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:55,643 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:55,643 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:55,658 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 20:09:55,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:09:55,693 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 20:09:55,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:09:55,736 INFO L142 QuantifierPusher]: treesize reduction 23, result has 69.3 percent of original size [2021-03-24 20:09:55,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:09:55,752 INFO L142 QuantifierPusher]: treesize reduction 23, result has 66.2 percent of original size [2021-03-24 20:09:55,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:09:55,753 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:55,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:55,770 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:55,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:55,787 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:55,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:55,788 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 20:09:55,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:55,805 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:55,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:55,819 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46197721] [2021-03-24 20:09:55,819 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:55,819 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:09:55,819 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [479558232] [2021-03-24 20:09:55,819 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 20:09:55,820 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:55,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 20:09:55,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2021-03-24 20:09:55,822 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 20:09:55,823 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 117 places, 119 transitions, 865 flow. Second operand has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:55,823 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:55,823 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 20:09:55,823 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:56,602 INFO L129 PetriNetUnfolder]: 682/1968 cut-off events. [2021-03-24 20:09:56,603 INFO L130 PetriNetUnfolder]: For 6203/6236 co-relation queries the response was YES. [2021-03-24 20:09:56,612 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7747 conditions, 1968 events. 682/1968 cut-off events. For 6203/6236 co-relation queries the response was YES. Maximal size of possible extension queue 200. Compared 16624 event pairs, 86 based on Foata normal form. 21/1981 useless extension candidates. Maximal degree in co-relation 7722. Up to 726 conditions per place. [2021-03-24 20:09:56,619 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 106 selfloop transitions, 39 changer transitions 13/186 dead transitions. [2021-03-24 20:09:56,619 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 186 transitions, 1710 flow [2021-03-24 20:09:56,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-24 20:09:56,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2021-03-24 20:09:56,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 1400 transitions. [2021-03-24 20:09:56,622 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4578155657292348 [2021-03-24 20:09:56,622 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 1400 transitions. [2021-03-24 20:09:56,622 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 1400 transitions. [2021-03-24 20:09:56,624 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:56,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 1400 transitions. [2021-03-24 20:09:56,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 127.27272727272727) internal successors, (1400), 11 states have internal predecessors, (1400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:56,629 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 278.0) internal successors, (3336), 12 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:56,630 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 278.0) internal successors, (3336), 12 states have internal predecessors, (3336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:56,630 INFO L185 Difference]: Start difference. First operand has 117 places, 119 transitions, 865 flow. Second operand 11 states and 1400 transitions. [2021-03-24 20:09:56,630 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 186 transitions, 1710 flow [2021-03-24 20:09:56,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 186 transitions, 1648 flow, removed 3 selfloop flow, removed 6 redundant places. [2021-03-24 20:09:56,647 INFO L241 Difference]: Finished difference. Result has 124 places, 127 transitions, 972 flow [2021-03-24 20:09:56,647 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=815, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=119, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=82, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=972, PETRI_PLACES=124, PETRI_TRANSITIONS=127} [2021-03-24 20:09:56,647 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 58 predicate places. [2021-03-24 20:09:56,647 INFO L480 AbstractCegarLoop]: Abstraction has has 124 places, 127 transitions, 972 flow [2021-03-24 20:09:56,648 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:56,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:56,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:56,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-24 20:09:56,648 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:56,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:56,649 INFO L82 PathProgramCache]: Analyzing trace with hash -1144581886, now seen corresponding path program 9 times [2021-03-24 20:09:56,649 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:56,649 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [275419802] [2021-03-24 20:09:56,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:56,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:56,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:56,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:56,750 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:56,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:56,758 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:56,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:56,767 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 20:09:56,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:09:56,781 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:56,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:56,793 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:56,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:56,808 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:56,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:56,824 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 20:09:56,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:09:56,858 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:09:56,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:09:56,894 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:56,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:56,932 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 20:09:56,936 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:09:56,951 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:56,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:56,954 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:56,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:56,967 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:56,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:56,968 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 20:09:56,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:56,984 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:56,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:56,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:56,994 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [275419802] [2021-03-24 20:09:56,994 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:56,994 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:09:56,994 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276897028] [2021-03-24 20:09:56,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 20:09:56,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:56,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 20:09:56,995 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-24 20:09:56,997 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 20:09:56,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 127 transitions, 972 flow. Second operand has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:56,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:56,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 20:09:56,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:57,844 INFO L129 PetriNetUnfolder]: 823/2591 cut-off events. [2021-03-24 20:09:57,844 INFO L130 PetriNetUnfolder]: For 9140/9235 co-relation queries the response was YES. [2021-03-24 20:09:57,856 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10866 conditions, 2591 events. 823/2591 cut-off events. For 9140/9235 co-relation queries the response was YES. Maximal size of possible extension queue 290. Compared 24323 event pairs, 151 based on Foata normal form. 68/2647 useless extension candidates. Maximal degree in co-relation 10838. Up to 725 conditions per place. [2021-03-24 20:09:57,865 INFO L132 encePairwiseOnDemand]: 265/278 looper letters, 127 selfloop transitions, 50 changer transitions 9/214 dead transitions. [2021-03-24 20:09:57,865 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 135 places, 214 transitions, 2048 flow [2021-03-24 20:09:57,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 20:09:57,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 20:09:57,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1535 transitions. [2021-03-24 20:09:57,868 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4601318944844125 [2021-03-24 20:09:57,868 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1535 transitions. [2021-03-24 20:09:57,868 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1535 transitions. [2021-03-24 20:09:57,868 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:57,868 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1535 transitions. [2021-03-24 20:09:57,870 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 127.91666666666667) internal successors, (1535), 12 states have internal predecessors, (1535), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:57,874 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 278.0) internal successors, (3614), 13 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:57,874 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 278.0) internal successors, (3614), 13 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:57,874 INFO L185 Difference]: Start difference. First operand has 124 places, 127 transitions, 972 flow. Second operand 12 states and 1535 transitions. [2021-03-24 20:09:57,874 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 135 places, 214 transitions, 2048 flow [2021-03-24 20:09:57,893 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 128 places, 214 transitions, 1992 flow, removed 2 selfloop flow, removed 7 redundant places. [2021-03-24 20:09:57,896 INFO L241 Difference]: Finished difference. Result has 131 places, 138 transitions, 1152 flow [2021-03-24 20:09:57,896 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=923, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=127, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1152, PETRI_PLACES=131, PETRI_TRANSITIONS=138} [2021-03-24 20:09:57,896 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 65 predicate places. [2021-03-24 20:09:57,896 INFO L480 AbstractCegarLoop]: Abstraction has has 131 places, 138 transitions, 1152 flow [2021-03-24 20:09:57,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:57,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:57,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:57,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-24 20:09:57,897 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:57,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:57,897 INFO L82 PathProgramCache]: Analyzing trace with hash 622209568, now seen corresponding path program 10 times [2021-03-24 20:09:57,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:57,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670731667] [2021-03-24 20:09:57,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:57,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:57,971 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:57,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:57,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:57,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:57,972 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:57,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:57,976 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:57,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:09:57,980 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:57,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:09:57,988 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:57,989 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:09:57,996 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:57,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:58,009 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:58,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:58,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:58,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:09:58,039 INFO L142 QuantifierPusher]: treesize reduction 12, result has 70.7 percent of original size [2021-03-24 20:09:58,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:09:58,076 INFO L142 QuantifierPusher]: treesize reduction 12, result has 75.5 percent of original size [2021-03-24 20:09:58,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:09:58,115 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 20:09:58,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:09:58,118 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:09:58,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:58,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:58,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:58,119 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:58,120 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670731667] [2021-03-24 20:09:58,120 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:58,120 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 20:09:58,120 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350722182] [2021-03-24 20:09:58,120 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 20:09:58,120 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:58,120 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 20:09:58,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2021-03-24 20:09:58,122 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 278 [2021-03-24 20:09:58,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 138 transitions, 1152 flow. Second operand has 11 states, 11 states have (on average 204.54545454545453) internal successors, (2250), 11 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:58,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:58,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 278 [2021-03-24 20:09:58,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:58,558 INFO L129 PetriNetUnfolder]: 197/1261 cut-off events. [2021-03-24 20:09:58,559 INFO L130 PetriNetUnfolder]: For 5549/5743 co-relation queries the response was YES. [2021-03-24 20:09:58,563 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5407 conditions, 1261 events. 197/1261 cut-off events. For 5549/5743 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 12166 event pairs, 51 based on Foata normal form. 68/1312 useless extension candidates. Maximal degree in co-relation 5377. Up to 359 conditions per place. [2021-03-24 20:09:58,573 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 60 selfloop transitions, 29 changer transitions 0/160 dead transitions. [2021-03-24 20:09:58,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 140 places, 160 transitions, 1538 flow [2021-03-24 20:09:58,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:09:58,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:09:58,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2067 transitions. [2021-03-24 20:09:58,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7435251798561151 [2021-03-24 20:09:58,576 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2067 transitions. [2021-03-24 20:09:58,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2067 transitions. [2021-03-24 20:09:58,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:58,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2067 transitions. [2021-03-24 20:09:58,579 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.7) internal successors, (2067), 10 states have internal predecessors, (2067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:58,582 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:58,583 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:58,583 INFO L185 Difference]: Start difference. First operand has 131 places, 138 transitions, 1152 flow. Second operand 10 states and 2067 transitions. [2021-03-24 20:09:58,583 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 140 places, 160 transitions, 1538 flow [2021-03-24 20:09:58,599 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 160 transitions, 1480 flow, removed 10 selfloop flow, removed 6 redundant places. [2021-03-24 20:09:58,601 INFO L241 Difference]: Finished difference. Result has 137 places, 144 transitions, 1258 flow [2021-03-24 20:09:58,601 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1078, PETRI_DIFFERENCE_MINUEND_PLACES=125, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=107, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1258, PETRI_PLACES=137, PETRI_TRANSITIONS=144} [2021-03-24 20:09:58,601 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 71 predicate places. [2021-03-24 20:09:58,602 INFO L480 AbstractCegarLoop]: Abstraction has has 137 places, 144 transitions, 1258 flow [2021-03-24 20:09:58,602 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 204.54545454545453) internal successors, (2250), 11 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:58,602 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:58,602 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:58,602 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-24 20:09:58,603 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:58,603 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:58,603 INFO L82 PathProgramCache]: Analyzing trace with hash 1547103982, now seen corresponding path program 11 times [2021-03-24 20:09:58,603 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:58,604 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8019217] [2021-03-24 20:09:58,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:58,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:09:58,678 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:58,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:09:58,679 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:58,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:58,687 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:09:58,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:09:58,696 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 20:09:58,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:09:58,713 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:58,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:58,727 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:58,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:58,741 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:09:58,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:09:58,756 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:58,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:58,772 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:09:58,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:09:58,810 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:58,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:58,854 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 20:09:58,854 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:09:58,871 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:09:58,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:09:58,872 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:58,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:58,889 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:09:58,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:09:58,890 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 20:09:58,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:09:58,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:09:58,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:09:58,919 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:09:58,919 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8019217] [2021-03-24 20:09:58,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:09:58,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:09:58,919 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705049238] [2021-03-24 20:09:58,920 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 20:09:58,920 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:09:58,920 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 20:09:58,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-24 20:09:58,922 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 20:09:58,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 137 places, 144 transitions, 1258 flow. Second operand has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:58,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:09:58,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 20:09:58,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:09:59,419 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2021-03-24 20:09:59,885 INFO L129 PetriNetUnfolder]: 690/2410 cut-off events. [2021-03-24 20:09:59,886 INFO L130 PetriNetUnfolder]: For 10541/10618 co-relation queries the response was YES. [2021-03-24 20:09:59,897 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10862 conditions, 2410 events. 690/2410 cut-off events. For 10541/10618 co-relation queries the response was YES. Maximal size of possible extension queue 271. Compared 22908 event pairs, 279 based on Foata normal form. 34/2430 useless extension candidates. Maximal degree in co-relation 10829. Up to 782 conditions per place. [2021-03-24 20:09:59,905 INFO L132 encePairwiseOnDemand]: 266/278 looper letters, 151 selfloop transitions, 45 changer transitions 3/233 dead transitions. [2021-03-24 20:09:59,905 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 148 places, 233 transitions, 2385 flow [2021-03-24 20:09:59,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 20:09:59,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 20:09:59,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1529 transitions. [2021-03-24 20:09:59,908 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4583333333333333 [2021-03-24 20:09:59,908 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1529 transitions. [2021-03-24 20:09:59,908 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1529 transitions. [2021-03-24 20:09:59,909 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:09:59,909 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1529 transitions. [2021-03-24 20:09:59,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 127.41666666666667) internal successors, (1529), 12 states have internal predecessors, (1529), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:59,913 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 278.0) internal successors, (3614), 13 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:59,914 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 278.0) internal successors, (3614), 13 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:59,914 INFO L185 Difference]: Start difference. First operand has 137 places, 144 transitions, 1258 flow. Second operand 12 states and 1529 transitions. [2021-03-24 20:09:59,914 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 148 places, 233 transitions, 2385 flow [2021-03-24 20:09:59,942 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 233 transitions, 2344 flow, removed 7 selfloop flow, removed 6 redundant places. [2021-03-24 20:09:59,946 INFO L241 Difference]: Finished difference. Result has 146 places, 156 transitions, 1476 flow [2021-03-24 20:09:59,947 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1217, PETRI_DIFFERENCE_MINUEND_PLACES=131, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=105, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1476, PETRI_PLACES=146, PETRI_TRANSITIONS=156} [2021-03-24 20:09:59,947 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 80 predicate places. [2021-03-24 20:09:59,947 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 156 transitions, 1476 flow [2021-03-24 20:09:59,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:09:59,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:09:59,948 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:09:59,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-24 20:09:59,948 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:09:59,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:09:59,948 INFO L82 PathProgramCache]: Analyzing trace with hash -1147023278, now seen corresponding path program 12 times [2021-03-24 20:09:59,948 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:09:59,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002509985] [2021-03-24 20:09:59,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:09:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:00,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:00,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:10:00,057 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,057 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:10:00,061 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:10:00,071 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:00,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:00,098 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:10:00,099 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:10:00,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:10:00,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:10:00,141 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:10:00,161 INFO L142 QuantifierPusher]: treesize reduction 22, result has 56.0 percent of original size [2021-03-24 20:10:00,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:00,199 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:10:00,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:00,253 INFO L142 QuantifierPusher]: treesize reduction 66, result has 32.7 percent of original size [2021-03-24 20:10:00,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:10:00,258 INFO L142 QuantifierPusher]: treesize reduction 11, result has 54.2 percent of original size [2021-03-24 20:10:00,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:00,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:00,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:00,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:00,260 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002509985] [2021-03-24 20:10:00,260 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:00,260 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:10:00,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928356742] [2021-03-24 20:10:00,261 INFO L460 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-03-24 20:10:00,261 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:00,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-03-24 20:10:00,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2021-03-24 20:10:00,263 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 278 [2021-03-24 20:10:00,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 156 transitions, 1476 flow. Second operand has 13 states, 13 states have (on average 115.46153846153847) internal successors, (1501), 13 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:00,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:00,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 278 [2021-03-24 20:10:00,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:01,166 INFO L129 PetriNetUnfolder]: 961/3079 cut-off events. [2021-03-24 20:10:01,166 INFO L130 PetriNetUnfolder]: For 18667/18701 co-relation queries the response was YES. [2021-03-24 20:10:01,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15013 conditions, 3079 events. 961/3079 cut-off events. For 18667/18701 co-relation queries the response was YES. Maximal size of possible extension queue 302. Compared 29294 event pairs, 569 based on Foata normal form. 47/3106 useless extension candidates. Maximal degree in co-relation 14976. Up to 1525 conditions per place. [2021-03-24 20:10:01,183 INFO L132 encePairwiseOnDemand]: 262/278 looper letters, 256 selfloop transitions, 34 changer transitions 0/298 dead transitions. [2021-03-24 20:10:01,183 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 298 transitions, 3597 flow [2021-03-24 20:10:01,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-24 20:10:01,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2021-03-24 20:10:01,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1561 transitions. [2021-03-24 20:10:01,186 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.43193137797454345 [2021-03-24 20:10:01,186 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1561 transitions. [2021-03-24 20:10:01,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1561 transitions. [2021-03-24 20:10:01,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:01,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1561 transitions. [2021-03-24 20:10:01,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 120.07692307692308) internal successors, (1561), 13 states have internal predecessors, (1561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:01,192 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 278.0) internal successors, (3892), 14 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:01,193 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 278.0) internal successors, (3892), 14 states have internal predecessors, (3892), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:01,193 INFO L185 Difference]: Start difference. First operand has 146 places, 156 transitions, 1476 flow. Second operand 13 states and 1561 transitions. [2021-03-24 20:10:01,193 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 298 transitions, 3597 flow [2021-03-24 20:10:01,233 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 153 places, 298 transitions, 3543 flow, removed 16 selfloop flow, removed 5 redundant places. [2021-03-24 20:10:01,237 INFO L241 Difference]: Finished difference. Result has 155 places, 161 transitions, 1616 flow [2021-03-24 20:10:01,237 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1434, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=155, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=28, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=1616, PETRI_PLACES=155, PETRI_TRANSITIONS=161} [2021-03-24 20:10:01,237 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 89 predicate places. [2021-03-24 20:10:01,237 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 161 transitions, 1616 flow [2021-03-24 20:10:01,238 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 115.46153846153847) internal successors, (1501), 13 states have internal predecessors, (1501), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:01,238 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:01,238 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:01,238 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-24 20:10:01,238 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:01,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:01,239 INFO L82 PathProgramCache]: Analyzing trace with hash -1371012890, now seen corresponding path program 13 times [2021-03-24 20:10:01,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:01,239 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [222742316] [2021-03-24 20:10:01,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:01,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:01,307 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:01,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:01,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:10:01,311 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:10:01,315 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:10:01,323 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:10:01,334 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:10:01,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:10:01,362 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 20:10:01,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:01,392 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 20:10:01,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:01,425 INFO L142 QuantifierPusher]: treesize reduction 25, result has 68.8 percent of original size [2021-03-24 20:10:01,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:10:01,468 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 20:10:01,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:10:01,470 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:01,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:01,472 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:01,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:01,472 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:01,472 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [222742316] [2021-03-24 20:10:01,473 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:01,473 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 20:10:01,473 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2072995849] [2021-03-24 20:10:01,473 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 20:10:01,473 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:01,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 20:10:01,473 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2021-03-24 20:10:01,475 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 195 out of 278 [2021-03-24 20:10:01,477 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 161 transitions, 1616 flow. Second operand has 11 states, 11 states have (on average 196.8181818181818) internal successors, (2165), 11 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:01,477 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:01,477 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 195 of 278 [2021-03-24 20:10:01,477 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:02,050 INFO L129 PetriNetUnfolder]: 339/2036 cut-off events. [2021-03-24 20:10:02,050 INFO L130 PetriNetUnfolder]: For 12129/12349 co-relation queries the response was YES. [2021-03-24 20:10:02,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9696 conditions, 2036 events. 339/2036 cut-off events. For 12129/12349 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 21563 event pairs, 27 based on Foata normal form. 59/2082 useless extension candidates. Maximal degree in co-relation 9657. Up to 468 conditions per place. [2021-03-24 20:10:02,064 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 105 selfloop transitions, 36 changer transitions 0/209 dead transitions. [2021-03-24 20:10:02,064 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 164 places, 209 transitions, 2401 flow [2021-03-24 20:10:02,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:10:02,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:10:02,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2001 transitions. [2021-03-24 20:10:02,067 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7197841726618706 [2021-03-24 20:10:02,068 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2001 transitions. [2021-03-24 20:10:02,068 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2001 transitions. [2021-03-24 20:10:02,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:02,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2001 transitions. [2021-03-24 20:10:02,071 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.1) internal successors, (2001), 10 states have internal predecessors, (2001), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:02,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:02,074 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:02,074 INFO L185 Difference]: Start difference. First operand has 155 places, 161 transitions, 1616 flow. Second operand 10 states and 2001 transitions. [2021-03-24 20:10:02,074 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 164 places, 209 transitions, 2401 flow [2021-03-24 20:10:02,111 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 154 places, 209 transitions, 2323 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-03-24 20:10:02,114 INFO L241 Difference]: Finished difference. Result has 155 places, 162 transitions, 1634 flow [2021-03-24 20:10:02,114 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1540, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1634, PETRI_PLACES=155, PETRI_TRANSITIONS=162} [2021-03-24 20:10:02,114 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 89 predicate places. [2021-03-24 20:10:02,115 INFO L480 AbstractCegarLoop]: Abstraction has has 155 places, 162 transitions, 1634 flow [2021-03-24 20:10:02,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 196.8181818181818) internal successors, (2165), 11 states have internal predecessors, (2165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:02,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:02,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:02,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-24 20:10:02,115 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:02,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:02,116 INFO L82 PathProgramCache]: Analyzing trace with hash -2206820, now seen corresponding path program 14 times [2021-03-24 20:10:02,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:02,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371196762] [2021-03-24 20:10:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:02,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:02,189 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:02,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:02,190 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:10:02,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:02,198 INFO L142 QuantifierPusher]: treesize reduction 5, result has 75.0 percent of original size [2021-03-24 20:10:02,198 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:02,207 INFO L142 QuantifierPusher]: treesize reduction 5, result has 83.3 percent of original size [2021-03-24 20:10:02,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:10:02,222 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:10:02,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:10:02,236 INFO L142 QuantifierPusher]: treesize reduction 5, result has 78.3 percent of original size [2021-03-24 20:10:02,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:10:02,251 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:10:02,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:02,268 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:10:02,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:02,283 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:10:02,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:10:02,312 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:10:02,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:02,349 INFO L142 QuantifierPusher]: treesize reduction 23, result has 68.9 percent of original size [2021-03-24 20:10:02,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:10:02,372 INFO L142 QuantifierPusher]: treesize reduction 23, result has 65.7 percent of original size [2021-03-24 20:10:02,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:02,374 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:10:02,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:02,389 INFO L142 QuantifierPusher]: treesize reduction 5, result has 77.3 percent of original size [2021-03-24 20:10:02,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:02,390 INFO L142 QuantifierPusher]: treesize reduction 5, result has 72.2 percent of original size [2021-03-24 20:10:02,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:02,404 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:02,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 4 [2021-03-24 20:10:02,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:02,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371196762] [2021-03-24 20:10:02,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:02,415 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2021-03-24 20:10:02,415 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823551436] [2021-03-24 20:10:02,415 INFO L460 AbstractCegarLoop]: Interpolant automaton has 14 states [2021-03-24 20:10:02,415 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:02,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-03-24 20:10:02,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2021-03-24 20:10:02,417 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 121 out of 278 [2021-03-24 20:10:02,418 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 155 places, 162 transitions, 1634 flow. Second operand has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:02,418 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:02,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 121 of 278 [2021-03-24 20:10:02,419 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:03,205 INFO L129 PetriNetUnfolder]: 727/2732 cut-off events. [2021-03-24 20:10:03,205 INFO L130 PetriNetUnfolder]: For 16620/16692 co-relation queries the response was YES. [2021-03-24 20:10:03,218 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13194 conditions, 2732 events. 727/2732 cut-off events. For 16620/16692 co-relation queries the response was YES. Maximal size of possible extension queue 309. Compared 27258 event pairs, 308 based on Foata normal form. 29/2741 useless extension candidates. Maximal degree in co-relation 13155. Up to 1534 conditions per place. [2021-03-24 20:10:03,224 INFO L132 encePairwiseOnDemand]: 266/278 looper letters, 145 selfloop transitions, 43 changer transitions 3/227 dead transitions. [2021-03-24 20:10:03,225 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 227 transitions, 2598 flow [2021-03-24 20:10:03,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-03-24 20:10:03,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2021-03-24 20:10:03,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 1521 transitions. [2021-03-24 20:10:03,227 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.45593525179856115 [2021-03-24 20:10:03,227 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 1521 transitions. [2021-03-24 20:10:03,227 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 1521 transitions. [2021-03-24 20:10:03,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:03,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 1521 transitions. [2021-03-24 20:10:03,230 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 126.75) internal successors, (1521), 12 states have internal predecessors, (1521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:03,232 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 278.0) internal successors, (3614), 13 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:03,233 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 278.0) internal successors, (3614), 13 states have internal predecessors, (3614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:03,233 INFO L185 Difference]: Start difference. First operand has 155 places, 162 transitions, 1634 flow. Second operand 12 states and 1521 transitions. [2021-03-24 20:10:03,233 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 227 transitions, 2598 flow [2021-03-24 20:10:03,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 227 transitions, 2536 flow, removed 3 selfloop flow, removed 7 redundant places. [2021-03-24 20:10:03,279 INFO L241 Difference]: Finished difference. Result has 162 places, 168 transitions, 1755 flow [2021-03-24 20:10:03,280 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=121, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=1755, PETRI_PLACES=162, PETRI_TRANSITIONS=168} [2021-03-24 20:10:03,280 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 96 predicate places. [2021-03-24 20:10:03,280 INFO L480 AbstractCegarLoop]: Abstraction has has 162 places, 168 transitions, 1755 flow [2021-03-24 20:10:03,280 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 14 states, 14 states have (on average 123.07142857142857) internal successors, (1723), 14 states have internal predecessors, (1723), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:03,280 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:03,280 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:03,280 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-24 20:10:03,281 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:03,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:03,281 INFO L82 PathProgramCache]: Analyzing trace with hash -1720873796, now seen corresponding path program 15 times [2021-03-24 20:10:03,281 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:03,281 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021794759] [2021-03-24 20:10:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:03,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:03,347 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:03,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:03,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:10:03,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:10:03,355 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:10:03,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-24 20:10:03,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:10:03,383 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 16 [2021-03-24 20:10:03,401 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 20:10:03,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:03,435 INFO L142 QuantifierPusher]: treesize reduction 13, result has 68.3 percent of original size [2021-03-24 20:10:03,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:03,468 INFO L142 QuantifierPusher]: treesize reduction 13, result has 74.0 percent of original size [2021-03-24 20:10:03,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:03,509 INFO L142 QuantifierPusher]: treesize reduction 25, result has 64.8 percent of original size [2021-03-24 20:10:03,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:10:03,511 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:03,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:03,512 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:03,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:03,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:03,513 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021794759] [2021-03-24 20:10:03,513 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:03,513 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-03-24 20:10:03,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251158191] [2021-03-24 20:10:03,513 INFO L460 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-03-24 20:10:03,514 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:03,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-03-24 20:10:03,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2021-03-24 20:10:03,524 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 203 out of 278 [2021-03-24 20:10:03,526 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 162 places, 168 transitions, 1755 flow. Second operand has 11 states, 11 states have (on average 204.54545454545453) internal successors, (2250), 11 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:03,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:03,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 203 of 278 [2021-03-24 20:10:03,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:04,001 INFO L129 PetriNetUnfolder]: 104/1247 cut-off events. [2021-03-24 20:10:04,001 INFO L130 PetriNetUnfolder]: For 8920/9082 co-relation queries the response was YES. [2021-03-24 20:10:04,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5747 conditions, 1247 events. 104/1247 cut-off events. For 8920/9082 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 12767 event pairs, 6 based on Foata normal form. 78/1322 useless extension candidates. Maximal degree in co-relation 5705. Up to 269 conditions per place. [2021-03-24 20:10:04,010 INFO L132 encePairwiseOnDemand]: 267/278 looper letters, 66 selfloop transitions, 36 changer transitions 0/178 dead transitions. [2021-03-24 20:10:04,010 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 170 places, 178 transitions, 2070 flow [2021-03-24 20:10:04,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-24 20:10:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2021-03-24 20:10:04,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2065 transitions. [2021-03-24 20:10:04,013 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.7428057553956835 [2021-03-24 20:10:04,013 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2065 transitions. [2021-03-24 20:10:04,013 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2065 transitions. [2021-03-24 20:10:04,014 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:04,014 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2065 transitions. [2021-03-24 20:10:04,016 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 206.5) internal successors, (2065), 10 states have internal predecessors, (2065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:04,018 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:04,018 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 278.0) internal successors, (3058), 11 states have internal predecessors, (3058), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:04,018 INFO L185 Difference]: Start difference. First operand has 162 places, 168 transitions, 1755 flow. Second operand 10 states and 2065 transitions. [2021-03-24 20:10:04,018 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 170 places, 178 transitions, 2070 flow [2021-03-24 20:10:04,046 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 178 transitions, 1799 flow, removed 59 selfloop flow, removed 15 redundant places. [2021-03-24 20:10:04,049 INFO L241 Difference]: Finished difference. Result has 157 places, 160 transitions, 1526 flow [2021-03-24 20:10:04,049 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1412, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=158, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=34, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=122, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1526, PETRI_PLACES=157, PETRI_TRANSITIONS=160} [2021-03-24 20:10:04,049 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 91 predicate places. [2021-03-24 20:10:04,050 INFO L480 AbstractCegarLoop]: Abstraction has has 157 places, 160 transitions, 1526 flow [2021-03-24 20:10:04,050 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 204.54545454545453) internal successors, (2250), 11 states have internal predecessors, (2250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:04,050 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:04,050 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:04,050 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-24 20:10:04,050 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:04,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:04,051 INFO L82 PathProgramCache]: Analyzing trace with hash -1228684063, now seen corresponding path program 1 times [2021-03-24 20:10:04,051 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:04,051 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206290649] [2021-03-24 20:10:04,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:04,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:04,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:04,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:04,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:04,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:04,204 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:04,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:04,227 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:10:04,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:04,260 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.8 percent of original size [2021-03-24 20:10:04,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:10:04,310 INFO L142 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size [2021-03-24 20:10:04,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:10:04,355 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:10:04,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:04,377 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:10:04,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:04,397 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.2 percent of original size [2021-03-24 20:10:04,399 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:04,427 INFO L142 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size [2021-03-24 20:10:04,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:04,454 INFO L142 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size [2021-03-24 20:10:04,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:04,481 INFO L142 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size [2021-03-24 20:10:04,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:04,504 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 20:10:04,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:04,554 INFO L142 QuantifierPusher]: treesize reduction 68, result has 42.9 percent of original size [2021-03-24 20:10:04,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:10:04,609 INFO L142 QuantifierPusher]: treesize reduction 68, result has 40.4 percent of original size [2021-03-24 20:10:04,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:10:04,632 INFO L142 QuantifierPusher]: treesize reduction 73, result has 35.4 percent of original size [2021-03-24 20:10:04,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:10:04,683 INFO L142 QuantifierPusher]: treesize reduction 69, result has 42.5 percent of original size [2021-03-24 20:10:04,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:10:04,728 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:10:04,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:10:04,769 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:10:04,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:10:04,791 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:10:04,791 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:10:04,815 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:10:04,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:10:04,848 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:04,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:04,882 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:04,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:04,906 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:04,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:04,907 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:04,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:04,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:04,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206290649] [2021-03-24 20:10:04,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:04,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:04,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688662610] [2021-03-24 20:10:04,943 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:04,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:04,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:04,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:04,945 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:04,958 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 157 places, 160 transitions, 1526 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:04,959 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:04,959 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:04,959 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:05,608 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:10:05,802 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-03-24 20:10:06,056 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-03-24 20:10:06,342 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-03-24 20:10:07,286 INFO L129 PetriNetUnfolder]: 597/2228 cut-off events. [2021-03-24 20:10:07,286 INFO L130 PetriNetUnfolder]: For 11845/11867 co-relation queries the response was YES. [2021-03-24 20:10:07,293 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10526 conditions, 2228 events. 597/2228 cut-off events. For 11845/11867 co-relation queries the response was YES. Maximal size of possible extension queue 220. Compared 20944 event pairs, 383 based on Foata normal form. 4/2207 useless extension candidates. Maximal degree in co-relation 10489. Up to 1716 conditions per place. [2021-03-24 20:10:07,297 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 165 selfloop transitions, 82 changer transitions 7/264 dead transitions. [2021-03-24 20:10:07,297 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 175 places, 264 transitions, 3230 flow [2021-03-24 20:10:07,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:10:07,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:10:07,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2611 transitions. [2021-03-24 20:10:07,306 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4943203332071185 [2021-03-24 20:10:07,306 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2611 transitions. [2021-03-24 20:10:07,307 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2611 transitions. [2021-03-24 20:10:07,307 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:07,307 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2611 transitions. [2021-03-24 20:10:07,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.42105263157896) internal successors, (2611), 19 states have internal predecessors, (2611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:07,313 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:07,314 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:07,314 INFO L185 Difference]: Start difference. First operand has 157 places, 160 transitions, 1526 flow. Second operand 19 states and 2611 transitions. [2021-03-24 20:10:07,314 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 175 places, 264 transitions, 3230 flow [2021-03-24 20:10:07,350 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 167 places, 264 transitions, 3093 flow, removed 24 selfloop flow, removed 8 redundant places. [2021-03-24 20:10:07,354 INFO L241 Difference]: Finished difference. Result has 178 places, 219 transitions, 2406 flow [2021-03-24 20:10:07,354 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1436, PETRI_DIFFERENCE_MINUEND_PLACES=149, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=160, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=35, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=97, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=2406, PETRI_PLACES=178, PETRI_TRANSITIONS=219} [2021-03-24 20:10:07,355 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 112 predicate places. [2021-03-24 20:10:07,355 INFO L480 AbstractCegarLoop]: Abstraction has has 178 places, 219 transitions, 2406 flow [2021-03-24 20:10:07,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:07,355 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:07,355 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:07,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-24 20:10:07,356 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:07,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:07,356 INFO L82 PathProgramCache]: Analyzing trace with hash -310237115, now seen corresponding path program 2 times [2021-03-24 20:10:07,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:07,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [806463459] [2021-03-24 20:10:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:07,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:07,502 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:07,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:07,503 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:07,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:07,513 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:07,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:07,536 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:10:07,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:07,560 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:10:07,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:07,603 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:10:07,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:10:07,662 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:07,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:07,684 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:10:07,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:07,705 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:07,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:07,737 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:07,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:07,766 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:07,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:07,794 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:07,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:07,823 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:10:07,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:10:07,879 INFO L142 QuantifierPusher]: treesize reduction 35, result has 60.7 percent of original size [2021-03-24 20:10:07,880 INFO L147 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size 38 [2021-03-24 20:10:07,924 INFO L142 QuantifierPusher]: treesize reduction 35, result has 58.3 percent of original size [2021-03-24 20:10:07,924 INFO L147 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size 33 [2021-03-24 20:10:07,940 INFO L142 QuantifierPusher]: treesize reduction 40, result has 51.8 percent of original size [2021-03-24 20:10:07,940 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 20:10:07,980 INFO L142 QuantifierPusher]: treesize reduction 45, result has 46.4 percent of original size [2021-03-24 20:10:07,980 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:10:08,015 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:10:08,016 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:10:08,053 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:10:08,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:08,076 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:08,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:08,094 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:08,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:08,095 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:08,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:08,117 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:08,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:08,146 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:08,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:08,169 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:08,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:08,190 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:08,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [806463459] [2021-03-24 20:10:08,190 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:08,190 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:08,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998709538] [2021-03-24 20:10:08,190 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:08,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:08,191 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:08,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:08,193 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:08,194 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 178 places, 219 transitions, 2406 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:08,195 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:08,195 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:08,195 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:09,254 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-03-24 20:10:09,513 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-03-24 20:10:10,451 INFO L129 PetriNetUnfolder]: 639/2353 cut-off events. [2021-03-24 20:10:10,451 INFO L130 PetriNetUnfolder]: For 14762/14784 co-relation queries the response was YES. [2021-03-24 20:10:10,465 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12162 conditions, 2353 events. 639/2353 cut-off events. For 14762/14784 co-relation queries the response was YES. Maximal size of possible extension queue 228. Compared 22312 event pairs, 384 based on Foata normal form. 8/2330 useless extension candidates. Maximal degree in co-relation 12114. Up to 1818 conditions per place. [2021-03-24 20:10:10,473 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 190 selfloop transitions, 81 changer transitions 18/299 dead transitions. [2021-03-24 20:10:10,473 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 193 places, 299 transitions, 3930 flow [2021-03-24 20:10:10,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:10,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:10,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2481 transitions. [2021-03-24 20:10:10,477 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4958033573141487 [2021-03-24 20:10:10,477 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2481 transitions. [2021-03-24 20:10:10,477 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2481 transitions. [2021-03-24 20:10:10,477 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:10,477 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2481 transitions. [2021-03-24 20:10:10,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.83333333333334) internal successors, (2481), 18 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:10,483 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:10,484 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:10,484 INFO L185 Difference]: Start difference. First operand has 178 places, 219 transitions, 2406 flow. Second operand 18 states and 2481 transitions. [2021-03-24 20:10:10,484 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 193 places, 299 transitions, 3930 flow [2021-03-24 20:10:10,549 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 299 transitions, 3858 flow, removed 24 selfloop flow, removed 6 redundant places. [2021-03-24 20:10:10,553 INFO L241 Difference]: Finished difference. Result has 194 places, 250 transitions, 3020 flow [2021-03-24 20:10:10,553 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2344, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3020, PETRI_PLACES=194, PETRI_TRANSITIONS=250} [2021-03-24 20:10:10,554 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 128 predicate places. [2021-03-24 20:10:10,554 INFO L480 AbstractCegarLoop]: Abstraction has has 194 places, 250 transitions, 3020 flow [2021-03-24 20:10:10,554 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:10,554 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:10,554 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:10,554 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-24 20:10:10,555 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:10,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:10,555 INFO L82 PathProgramCache]: Analyzing trace with hash -824040021, now seen corresponding path program 3 times [2021-03-24 20:10:10,555 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:10,555 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [568511678] [2021-03-24 20:10:10,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:10,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:10,687 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:10,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:10,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:10,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:10,699 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:10,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:10,721 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:10:10,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:10,743 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:10:10,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:10,787 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:10:10,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:10:10,843 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:10,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:10,863 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:10:10,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:10,884 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:10,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:10,922 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:10,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:10,949 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:10,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:10,976 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:10,977 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:11,006 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:10:11,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:10:11,038 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:10:11,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:11,062 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:10:11,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:10:11,076 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:10:11,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:11,101 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:10:11,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:10:11,126 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:10:11,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:10:11,151 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:10:11,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:10:11,164 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:11,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:11,195 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:11,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:11,217 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:11,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:11,246 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:11,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:11,279 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:11,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:11,308 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:11,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:11,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:11,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [568511678] [2021-03-24 20:10:11,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:11,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:11,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [286732865] [2021-03-24 20:10:11,337 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:11,337 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:11,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:11,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:11,340 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:11,342 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 250 transitions, 3020 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:11,342 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:11,342 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:11,342 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:12,157 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:10:12,384 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-03-24 20:10:12,633 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-03-24 20:10:13,643 INFO L129 PetriNetUnfolder]: 679/2463 cut-off events. [2021-03-24 20:10:13,644 INFO L130 PetriNetUnfolder]: For 18955/18977 co-relation queries the response was YES. [2021-03-24 20:10:13,653 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13712 conditions, 2463 events. 679/2463 cut-off events. For 18955/18977 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 23462 event pairs, 412 based on Foata normal form. 4/2441 useless extension candidates. Maximal degree in co-relation 13658. Up to 1765 conditions per place. [2021-03-24 20:10:13,657 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 218 selfloop transitions, 75 changer transitions 26/329 dead transitions. [2021-03-24 20:10:13,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 329 transitions, 4572 flow [2021-03-24 20:10:13,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:13,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:13,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2477 transitions. [2021-03-24 20:10:13,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49500399680255797 [2021-03-24 20:10:13,661 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2477 transitions. [2021-03-24 20:10:13,661 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2477 transitions. [2021-03-24 20:10:13,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:13,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2477 transitions. [2021-03-24 20:10:13,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.61111111111111) internal successors, (2477), 18 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:13,667 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:13,667 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:13,667 INFO L185 Difference]: Start difference. First operand has 194 places, 250 transitions, 3020 flow. Second operand 18 states and 2477 transitions. [2021-03-24 20:10:13,668 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 329 transitions, 4572 flow [2021-03-24 20:10:13,749 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 329 transitions, 4497 flow, removed 26 selfloop flow, removed 6 redundant places. [2021-03-24 20:10:13,754 INFO L241 Difference]: Finished difference. Result has 209 places, 269 transitions, 3436 flow [2021-03-24 20:10:13,754 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2946, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=179, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3436, PETRI_PLACES=209, PETRI_TRANSITIONS=269} [2021-03-24 20:10:13,755 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 143 predicate places. [2021-03-24 20:10:13,755 INFO L480 AbstractCegarLoop]: Abstraction has has 209 places, 269 transitions, 3436 flow [2021-03-24 20:10:13,755 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:13,755 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:13,755 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:13,755 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-24 20:10:13,755 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:13,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:13,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1582478689, now seen corresponding path program 4 times [2021-03-24 20:10:13,756 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:13,756 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916438696] [2021-03-24 20:10:13,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:13,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:13,858 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:13,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:13,859 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:13,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:13,870 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:13,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:13,893 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:10:13,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:13,917 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:10:13,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:13,961 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:10:13,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:10:14,017 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:14,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:14,038 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:10:14,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:14,059 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:14,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:14,098 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:14,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:14,138 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:14,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:14,175 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:14,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:14,205 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:10:14,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:10:14,244 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:10:14,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:14,258 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:10:14,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:10:14,289 INFO L142 QuantifierPusher]: treesize reduction 55, result has 32.9 percent of original size [2021-03-24 20:10:14,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:14,320 INFO L142 QuantifierPusher]: treesize reduction 52, result has 34.2 percent of original size [2021-03-24 20:10:14,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:14,352 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:10:14,353 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:10:14,408 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:10:14,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:14,431 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:14,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:14,448 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:14,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:14,449 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:14,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:14,471 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:14,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:14,495 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:14,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:14,521 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:14,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:14,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:14,542 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1916438696] [2021-03-24 20:10:14,542 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:14,543 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:14,543 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023005084] [2021-03-24 20:10:14,543 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:14,543 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:14,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:14,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:14,545 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:14,546 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 209 places, 269 transitions, 3436 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:14,546 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:14,546 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:14,546 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:15,321 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:10:15,554 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 20:10:15,758 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:10:15,947 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:10:16,771 INFO L129 PetriNetUnfolder]: 661/2429 cut-off events. [2021-03-24 20:10:16,771 INFO L130 PetriNetUnfolder]: For 21117/21139 co-relation queries the response was YES. [2021-03-24 20:10:16,783 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14102 conditions, 2429 events. 661/2429 cut-off events. For 21117/21139 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 23178 event pairs, 396 based on Foata normal form. 7/2401 useless extension candidates. Maximal degree in co-relation 14042. Up to 1951 conditions per place. [2021-03-24 20:10:16,787 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 207 selfloop transitions, 68 changer transitions 18/303 dead transitions. [2021-03-24 20:10:16,787 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 303 transitions, 4421 flow [2021-03-24 20:10:16,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:16,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 20:10:16,790 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 20:10:16,790 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 20:10:16,790 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 20:10:16,791 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:16,791 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 20:10:16,793 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.33333333333334) internal successors, (2472), 18 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:16,796 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:16,797 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:16,797 INFO L185 Difference]: Start difference. First operand has 209 places, 269 transitions, 3436 flow. Second operand 18 states and 2472 transitions. [2021-03-24 20:10:16,797 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 303 transitions, 4421 flow [2021-03-24 20:10:16,879 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 303 transitions, 4320 flow, removed 26 selfloop flow, removed 10 redundant places. [2021-03-24 20:10:16,883 INFO L241 Difference]: Finished difference. Result has 218 places, 272 transitions, 3547 flow [2021-03-24 20:10:16,883 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3340, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3547, PETRI_PLACES=218, PETRI_TRANSITIONS=272} [2021-03-24 20:10:16,883 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 152 predicate places. [2021-03-24 20:10:16,883 INFO L480 AbstractCegarLoop]: Abstraction has has 218 places, 272 transitions, 3547 flow [2021-03-24 20:10:16,884 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:16,884 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:16,884 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:16,884 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-24 20:10:16,884 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:16,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:16,884 INFO L82 PathProgramCache]: Analyzing trace with hash -2044572807, now seen corresponding path program 5 times [2021-03-24 20:10:16,884 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:16,884 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485434884] [2021-03-24 20:10:16,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:16,982 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:16,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:16,983 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:16,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:16,993 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:16,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:17,016 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:10:17,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:17,049 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:10:17,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:10:17,104 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:10:17,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:10:17,160 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:10:17,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:17,181 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:10:17,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:17,202 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:10:17,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:10:17,227 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:10:17,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:10:17,254 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:10:17,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:10:17,280 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:10:17,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:10:17,305 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:10:17,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:17,335 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 20:10:17,336 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 20:10:17,388 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 20:10:17,389 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 20:10:17,408 INFO L142 QuantifierPusher]: treesize reduction 35, result has 54.5 percent of original size [2021-03-24 20:10:17,409 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size 35 [2021-03-24 20:10:17,458 INFO L142 QuantifierPusher]: treesize reduction 40, result has 47.4 percent of original size [2021-03-24 20:10:17,459 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size 29 [2021-03-24 20:10:17,508 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.3 percent of original size [2021-03-24 20:10:17,509 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.1 percent of original size 40 [2021-03-24 20:10:17,579 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:17,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:17,610 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:17,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:17,633 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:17,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:17,657 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:17,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:17,688 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:17,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:17,721 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:17,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:17,722 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:17,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:17,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:17,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485434884] [2021-03-24 20:10:17,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:17,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:17,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [262073197] [2021-03-24 20:10:17,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:17,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:17,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:17,744 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:17,746 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:17,747 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 218 places, 272 transitions, 3547 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:17,747 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:17,747 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:17,747 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:18,498 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:10:18,662 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:10:18,893 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 20:10:19,153 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:10:19,968 INFO L129 PetriNetUnfolder]: 666/2446 cut-off events. [2021-03-24 20:10:19,968 INFO L130 PetriNetUnfolder]: For 21887/21909 co-relation queries the response was YES. [2021-03-24 20:10:19,986 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14321 conditions, 2446 events. 666/2446 cut-off events. For 21887/21909 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 23407 event pairs, 402 based on Foata normal form. 7/2419 useless extension candidates. Maximal degree in co-relation 14258. Up to 1941 conditions per place. [2021-03-24 20:10:19,991 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 207 selfloop transitions, 70 changer transitions 26/313 dead transitions. [2021-03-24 20:10:19,991 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 313 transitions, 4636 flow [2021-03-24 20:10:19,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:19,992 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:19,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2475 transitions. [2021-03-24 20:10:19,995 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49460431654676257 [2021-03-24 20:10:19,995 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2475 transitions. [2021-03-24 20:10:19,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2475 transitions. [2021-03-24 20:10:19,995 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:19,995 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2475 transitions. [2021-03-24 20:10:19,998 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.5) internal successors, (2475), 18 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:20,000 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:20,001 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:20,001 INFO L185 Difference]: Start difference. First operand has 218 places, 272 transitions, 3547 flow. Second operand 18 states and 2475 transitions. [2021-03-24 20:10:20,001 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 313 transitions, 4636 flow [2021-03-24 20:10:20,090 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 218 places, 313 transitions, 4495 flow, removed 8 selfloop flow, removed 12 redundant places. [2021-03-24 20:10:20,094 INFO L241 Difference]: Finished difference. Result has 223 places, 273 transitions, 3599 flow [2021-03-24 20:10:20,094 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3414, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=272, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=203, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3599, PETRI_PLACES=223, PETRI_TRANSITIONS=273} [2021-03-24 20:10:20,094 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 157 predicate places. [2021-03-24 20:10:20,094 INFO L480 AbstractCegarLoop]: Abstraction has has 223 places, 273 transitions, 3599 flow [2021-03-24 20:10:20,095 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:20,095 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:20,095 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:20,095 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-24 20:10:20,095 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:20,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:20,095 INFO L82 PathProgramCache]: Analyzing trace with hash -295565105, now seen corresponding path program 6 times [2021-03-24 20:10:20,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:20,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435302994] [2021-03-24 20:10:20,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:20,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:20,217 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:20,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:20,218 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:20,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:20,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:20,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:20,252 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:10:20,252 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:10:20,292 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:10:20,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:10:20,348 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:10:20,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:10:20,408 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:10:20,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:10:20,478 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:10:20,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:10:20,480 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:10:20,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:10:20,505 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:10:20,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:20,531 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:10:20,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:10:20,570 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:10:20,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:10:20,607 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:10:20,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:10:20,641 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:10:20,642 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:10:20,677 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.9 percent of original size [2021-03-24 20:10:20,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:10:20,721 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:10:20,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:10:20,765 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:10:20,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:10:20,784 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:10:20,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:10:20,822 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:10:20,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:10:20,863 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:10:20,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:10:20,900 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:10:20,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:20,947 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:10:20,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:20,972 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:10:20,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:21,003 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:10:21,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:21,037 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:10:21,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:10:21,059 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:10:21,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:10:21,060 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:10:21,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:10:21,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:21,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435302994] [2021-03-24 20:10:21,080 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:21,080 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:10:21,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505736723] [2021-03-24 20:10:21,080 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:10:21,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:21,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:10:21,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:10:21,083 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:10:21,084 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 273 transitions, 3599 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:21,084 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:21,084 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:10:21,084 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:21,868 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-03-24 20:10:22,143 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:10:22,416 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:10:23,380 INFO L129 PetriNetUnfolder]: 652/2410 cut-off events. [2021-03-24 20:10:23,380 INFO L130 PetriNetUnfolder]: For 21979/21999 co-relation queries the response was YES. [2021-03-24 20:10:23,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14228 conditions, 2410 events. 652/2410 cut-off events. For 21979/21999 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 23013 event pairs, 395 based on Foata normal form. 9/2385 useless extension candidates. Maximal degree in co-relation 14163. Up to 1947 conditions per place. [2021-03-24 20:10:23,395 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 212 selfloop transitions, 76 changer transitions 27/321 dead transitions. [2021-03-24 20:10:23,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 321 transitions, 4804 flow [2021-03-24 20:10:23,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:23,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:23,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1617 transitions. [2021-03-24 20:10:23,398 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32314148681055155 [2021-03-24 20:10:23,398 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1617 transitions. [2021-03-24 20:10:23,398 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1617 transitions. [2021-03-24 20:10:23,398 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:23,398 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1617 transitions. [2021-03-24 20:10:23,400 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.83333333333333) internal successors, (1617), 18 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:23,403 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:23,403 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:23,403 INFO L185 Difference]: Start difference. First operand has 223 places, 273 transitions, 3599 flow. Second operand 18 states and 1617 transitions. [2021-03-24 20:10:23,403 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 321 transitions, 4804 flow [2021-03-24 20:10:23,469 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 222 places, 321 transitions, 4633 flow, removed 14 selfloop flow, removed 13 redundant places. [2021-03-24 20:10:23,473 INFO L241 Difference]: Finished difference. Result has 229 places, 288 transitions, 3878 flow [2021-03-24 20:10:23,473 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3444, PETRI_DIFFERENCE_MINUEND_PLACES=205, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=273, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=206, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3878, PETRI_PLACES=229, PETRI_TRANSITIONS=288} [2021-03-24 20:10:23,474 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 163 predicate places. [2021-03-24 20:10:23,474 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 288 transitions, 3878 flow [2021-03-24 20:10:23,474 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:23,474 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:23,474 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:23,474 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-24 20:10:23,474 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:23,475 INFO L82 PathProgramCache]: Analyzing trace with hash -160437815, now seen corresponding path program 7 times [2021-03-24 20:10:23,475 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:23,475 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978232785] [2021-03-24 20:10:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:23,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:23,569 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:23,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:23,570 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:23,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:23,580 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:23,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:23,601 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:10:23,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:23,624 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:10:23,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:23,667 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:10:23,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:10:23,724 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:23,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:23,745 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:10:23,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:23,766 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:23,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:23,805 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:23,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:23,846 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:23,846 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:23,882 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:10:23,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:10:23,925 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:10:23,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:23,941 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:10:23,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:10:23,981 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:10:23,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:10:24,021 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:10:24,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:24,065 INFO L142 QuantifierPusher]: treesize reduction 45, result has 46.4 percent of original size [2021-03-24 20:10:24,066 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:10:24,112 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:10:24,112 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:10:24,161 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:10:24,161 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:24,186 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:24,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:24,204 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:24,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:24,205 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:24,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:24,227 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:24,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:24,251 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:24,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:24,275 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:24,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:24,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:24,296 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978232785] [2021-03-24 20:10:24,296 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:24,296 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:24,296 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1179973591] [2021-03-24 20:10:24,296 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:24,296 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:24,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:24,297 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:24,298 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:24,300 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 288 transitions, 3878 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:24,300 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:24,300 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:24,300 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:24,908 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-03-24 20:10:25,289 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 20:10:26,510 INFO L129 PetriNetUnfolder]: 687/2489 cut-off events. [2021-03-24 20:10:26,510 INFO L130 PetriNetUnfolder]: For 23610/23636 co-relation queries the response was YES. [2021-03-24 20:10:26,524 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14859 conditions, 2489 events. 687/2489 cut-off events. For 23610/23636 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 23814 event pairs, 378 based on Foata normal form. 12/2463 useless extension candidates. Maximal degree in co-relation 14790. Up to 1847 conditions per place. [2021-03-24 20:10:26,528 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 250 selfloop transitions, 87 changer transitions 19/366 dead transitions. [2021-03-24 20:10:26,528 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 240 places, 366 transitions, 5634 flow [2021-03-24 20:10:26,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:26,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2485 transitions. [2021-03-24 20:10:26,531 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4966027178257394 [2021-03-24 20:10:26,531 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2485 transitions. [2021-03-24 20:10:26,532 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2485 transitions. [2021-03-24 20:10:26,532 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:26,532 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2485 transitions. [2021-03-24 20:10:26,535 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 138.05555555555554) internal successors, (2485), 18 states have internal predecessors, (2485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:26,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:26,538 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:26,538 INFO L185 Difference]: Start difference. First operand has 229 places, 288 transitions, 3878 flow. Second operand 18 states and 2485 transitions. [2021-03-24 20:10:26,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 240 places, 366 transitions, 5634 flow [2021-03-24 20:10:26,637 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 366 transitions, 5528 flow, removed 20 selfloop flow, removed 11 redundant places. [2021-03-24 20:10:26,642 INFO L241 Difference]: Finished difference. Result has 235 places, 306 transitions, 4293 flow [2021-03-24 20:10:26,642 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3776, PETRI_DIFFERENCE_MINUEND_PLACES=212, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=288, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4293, PETRI_PLACES=235, PETRI_TRANSITIONS=306} [2021-03-24 20:10:26,642 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 169 predicate places. [2021-03-24 20:10:26,642 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 306 transitions, 4293 flow [2021-03-24 20:10:26,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:26,643 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:26,643 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:26,643 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-24 20:10:26,643 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:26,643 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:26,643 INFO L82 PathProgramCache]: Analyzing trace with hash -48256827, now seen corresponding path program 8 times [2021-03-24 20:10:26,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:26,644 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732020435] [2021-03-24 20:10:26,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:26,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:26,734 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:26,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:26,735 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:26,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:26,745 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:26,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:26,768 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:10:26,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:26,792 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:10:26,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:26,835 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:10:26,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:10:26,915 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:26,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:26,936 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:10:26,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:26,957 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:26,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:26,996 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:26,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:27,037 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:27,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:27,067 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:27,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:27,097 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:10:27,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:10:27,143 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:10:27,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:27,157 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:10:27,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:10:27,180 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:10:27,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:27,203 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:10:27,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:10:27,227 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:10:27,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:10:27,250 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:10:27,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:10:27,251 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:27,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:27,274 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:27,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:27,293 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:27,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:27,316 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:27,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:27,340 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:27,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:27,363 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:27,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:27,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:27,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732020435] [2021-03-24 20:10:27,385 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:27,385 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:27,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565085303] [2021-03-24 20:10:27,385 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:27,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:27,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:27,385 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:27,387 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:27,388 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 306 transitions, 4293 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:27,388 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:27,388 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:27,389 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:28,150 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:10:28,389 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 20:10:28,636 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-03-24 20:10:29,710 INFO L129 PetriNetUnfolder]: 734/2620 cut-off events. [2021-03-24 20:10:29,710 INFO L130 PetriNetUnfolder]: For 28205/28234 co-relation queries the response was YES. [2021-03-24 20:10:29,723 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16413 conditions, 2620 events. 734/2620 cut-off events. For 28205/28234 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 25166 event pairs, 428 based on Foata normal form. 9/2591 useless extension candidates. Maximal degree in co-relation 16342. Up to 1984 conditions per place. [2021-03-24 20:10:29,727 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 249 selfloop transitions, 84 changer transitions 26/369 dead transitions. [2021-03-24 20:10:29,728 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 249 places, 369 transitions, 5828 flow [2021-03-24 20:10:29,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:29,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:29,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2481 transitions. [2021-03-24 20:10:29,730 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4958033573141487 [2021-03-24 20:10:29,730 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2481 transitions. [2021-03-24 20:10:29,731 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2481 transitions. [2021-03-24 20:10:29,731 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:29,731 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2481 transitions. [2021-03-24 20:10:29,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.83333333333334) internal successors, (2481), 18 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:29,736 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:29,737 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:29,737 INFO L185 Difference]: Start difference. First operand has 235 places, 306 transitions, 4293 flow. Second operand 18 states and 2481 transitions. [2021-03-24 20:10:29,737 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 249 places, 369 transitions, 5828 flow [2021-03-24 20:10:29,847 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 241 places, 369 transitions, 5699 flow, removed 38 selfloop flow, removed 8 redundant places. [2021-03-24 20:10:29,852 INFO L241 Difference]: Finished difference. Result has 247 places, 321 transitions, 4613 flow [2021-03-24 20:10:29,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4166, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=306, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=69, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4613, PETRI_PLACES=247, PETRI_TRANSITIONS=321} [2021-03-24 20:10:29,852 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 181 predicate places. [2021-03-24 20:10:29,852 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 321 transitions, 4613 flow [2021-03-24 20:10:29,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:29,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:29,853 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:29,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-24 20:10:29,853 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:29,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:29,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1580601197, now seen corresponding path program 9 times [2021-03-24 20:10:29,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:29,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402355695] [2021-03-24 20:10:29,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:29,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:29,940 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:29,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:29,941 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:29,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:29,947 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:29,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:29,961 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:10:29,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:29,975 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:10:29,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:29,996 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:29,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:30,024 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:10:30,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:10:30,067 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:30,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:30,068 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:30,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:30,092 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:10:30,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:10:30,115 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:30,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:30,147 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:30,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:30,186 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:30,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:30,211 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:10:30,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:10:30,228 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:30,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:30,253 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:10:30,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:30,276 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:30,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:30,299 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:30,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:30,336 INFO L142 QuantifierPusher]: treesize reduction 45, result has 44.4 percent of original size [2021-03-24 20:10:30,336 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-03-24 20:10:30,375 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:10:30,376 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:10:30,417 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:10:30,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:30,440 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:30,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:30,458 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:30,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:30,459 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:30,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:30,481 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:30,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:30,505 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:30,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:30,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:30,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:30,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:30,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402355695] [2021-03-24 20:10:30,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:30,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:10:30,549 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510682083] [2021-03-24 20:10:30,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:10:30,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:30,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:10:30,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:10:30,551 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:10:30,552 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 321 transitions, 4613 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:30,552 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:30,552 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:10:30,552 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:31,366 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 62 [2021-03-24 20:10:32,922 INFO L129 PetriNetUnfolder]: 737/2649 cut-off events. [2021-03-24 20:10:32,922 INFO L130 PetriNetUnfolder]: For 29654/29687 co-relation queries the response was YES. [2021-03-24 20:10:32,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16853 conditions, 2649 events. 737/2649 cut-off events. For 29654/29687 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 25699 event pairs, 312 based on Foata normal form. 18/2632 useless extension candidates. Maximal degree in co-relation 16778. Up to 1681 conditions per place. [2021-03-24 20:10:32,944 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 231 selfloop transitions, 149 changer transitions 23/409 dead transitions. [2021-03-24 20:10:32,944 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 260 places, 409 transitions, 6709 flow [2021-03-24 20:10:32,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:32,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:32,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1628 transitions. [2021-03-24 20:10:32,946 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32533972821742607 [2021-03-24 20:10:32,946 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1628 transitions. [2021-03-24 20:10:32,946 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1628 transitions. [2021-03-24 20:10:32,946 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:32,946 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1628 transitions. [2021-03-24 20:10:32,948 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.44444444444444) internal successors, (1628), 18 states have internal predecessors, (1628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:32,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:32,951 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:32,951 INFO L185 Difference]: Start difference. First operand has 247 places, 321 transitions, 4613 flow. Second operand 18 states and 1628 transitions. [2021-03-24 20:10:32,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 260 places, 409 transitions, 6709 flow [2021-03-24 20:10:33,074 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 409 transitions, 6503 flow, removed 34 selfloop flow, removed 12 redundant places. [2021-03-24 20:10:33,079 INFO L241 Difference]: Finished difference. Result has 253 places, 344 transitions, 5235 flow [2021-03-24 20:10:33,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4438, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=130, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5235, PETRI_PLACES=253, PETRI_TRANSITIONS=344} [2021-03-24 20:10:33,080 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 187 predicate places. [2021-03-24 20:10:33,080 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 344 transitions, 5235 flow [2021-03-24 20:10:33,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:33,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:33,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:33,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-24 20:10:33,081 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:33,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:33,081 INFO L82 PathProgramCache]: Analyzing trace with hash -1802012953, now seen corresponding path program 10 times [2021-03-24 20:10:33,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:33,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912333749] [2021-03-24 20:10:33,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:33,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:33,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:33,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:33,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:33,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:33,176 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:33,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:33,201 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:10:33,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:33,224 INFO L142 QuantifierPusher]: treesize reduction 42, result has 53.8 percent of original size [2021-03-24 20:10:33,225 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:10:33,262 INFO L142 QuantifierPusher]: treesize reduction 30, result has 72.5 percent of original size [2021-03-24 20:10:33,262 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.9 percent of original size 71 [2021-03-24 20:10:33,309 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.8 percent of original size [2021-03-24 20:10:33,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:10:33,342 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.2 percent of original size [2021-03-24 20:10:33,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:33,370 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 20:10:33,370 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 20:10:33,405 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 20:10:33,405 INFO L147 QuantifierPusher]: treesize reduction 3, result has 94.1 percent of original size 48 [2021-03-24 20:10:33,441 INFO L142 QuantifierPusher]: treesize reduction 19, result has 71.6 percent of original size [2021-03-24 20:10:33,442 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.6 percent of original size 43 [2021-03-24 20:10:33,478 INFO L142 QuantifierPusher]: treesize reduction 19, result has 72.9 percent of original size [2021-03-24 20:10:33,480 INFO L147 QuantifierPusher]: treesize reduction 5, result has 90.2 percent of original size 46 [2021-03-24 20:10:33,494 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 20:10:33,495 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 20:10:33,508 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.4 percent of original size [2021-03-24 20:10:33,508 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.4 percent of original size 38 [2021-03-24 20:10:33,541 INFO L142 QuantifierPusher]: treesize reduction 49, result has 44.3 percent of original size [2021-03-24 20:10:33,542 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:10:33,575 INFO L142 QuantifierPusher]: treesize reduction 46, result has 47.7 percent of original size [2021-03-24 20:10:33,576 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size 37 [2021-03-24 20:10:33,612 INFO L142 QuantifierPusher]: treesize reduction 48, result has 42.9 percent of original size [2021-03-24 20:10:33,620 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.1 percent of original size 31 [2021-03-24 20:10:33,657 INFO L142 QuantifierPusher]: treesize reduction 46, result has 47.7 percent of original size [2021-03-24 20:10:33,658 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.1 percent of original size 37 [2021-03-24 20:10:33,696 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:10:33,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:33,717 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:10:33,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:33,734 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:10:33,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:33,736 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:10:33,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:33,757 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:10:33,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:33,780 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:10:33,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:33,801 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:33,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:33,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:33,821 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912333749] [2021-03-24 20:10:33,821 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:33,821 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 20:10:33,822 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2117527988] [2021-03-24 20:10:33,822 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 20:10:33,822 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:33,822 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 20:10:33,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=405, Unknown=0, NotChecked=0, Total=462 [2021-03-24 20:10:33,824 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:33,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 344 transitions, 5235 flow. Second operand has 22 states, 22 states have (on average 134.45454545454547) internal successors, (2958), 22 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:33,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:33,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:33,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:34,598 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-03-24 20:10:34,769 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-03-24 20:10:35,047 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-03-24 20:10:35,306 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2021-03-24 20:10:36,193 INFO L129 PetriNetUnfolder]: 714/2582 cut-off events. [2021-03-24 20:10:36,194 INFO L130 PetriNetUnfolder]: For 32212/32247 co-relation queries the response was YES. [2021-03-24 20:10:36,210 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17080 conditions, 2582 events. 714/2582 cut-off events. For 32212/32247 co-relation queries the response was YES. Maximal size of possible extension queue 240. Compared 24731 event pairs, 376 based on Foata normal form. 20/2561 useless extension candidates. Maximal degree in co-relation 17003. Up to 1967 conditions per place. [2021-03-24 20:10:36,216 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 266 selfloop transitions, 83 changer transitions 26/385 dead transitions. [2021-03-24 20:10:36,216 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 385 transitions, 6549 flow [2021-03-24 20:10:36,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:36,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2475 transitions. [2021-03-24 20:10:36,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49460431654676257 [2021-03-24 20:10:36,218 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2475 transitions. [2021-03-24 20:10:36,219 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2475 transitions. [2021-03-24 20:10:36,220 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:36,220 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2475 transitions. [2021-03-24 20:10:36,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.5) internal successors, (2475), 18 states have internal predecessors, (2475), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:36,225 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:36,226 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:36,226 INFO L185 Difference]: Start difference. First operand has 253 places, 344 transitions, 5235 flow. Second operand 18 states and 2475 transitions. [2021-03-24 20:10:36,226 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 385 transitions, 6549 flow [2021-03-24 20:10:36,355 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 385 transitions, 6325 flow, removed 49 selfloop flow, removed 10 redundant places. [2021-03-24 20:10:36,360 INFO L241 Difference]: Finished difference. Result has 263 places, 350 transitions, 5316 flow [2021-03-24 20:10:36,360 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5024, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=344, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5316, PETRI_PLACES=263, PETRI_TRANSITIONS=350} [2021-03-24 20:10:36,360 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 197 predicate places. [2021-03-24 20:10:36,361 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 350 transitions, 5316 flow [2021-03-24 20:10:36,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 134.45454545454547) internal successors, (2958), 22 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:36,361 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:36,361 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:36,361 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-24 20:10:36,361 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:36,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:36,361 INFO L82 PathProgramCache]: Analyzing trace with hash -603733533, now seen corresponding path program 11 times [2021-03-24 20:10:36,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:36,362 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893805287] [2021-03-24 20:10:36,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:36,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:36,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:36,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:36,451 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:36,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:36,461 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:10:36,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:36,484 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:10:36,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:36,511 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:10:36,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:36,558 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:10:36,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:10:36,601 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:36,602 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:36,617 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:10:36,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:36,634 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:36,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:36,664 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:36,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:36,693 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:36,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:36,722 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:10:36,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:10:36,753 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:10:36,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:10:36,787 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:10:36,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:36,801 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:10:36,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:10:36,834 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:10:36,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:36,858 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:10:36,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:10:36,884 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:10:36,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:10:36,907 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:10:36,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:10:36,908 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:36,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:36,933 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:36,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:36,951 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:36,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:36,974 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:36,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:37,004 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:37,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:37,027 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:37,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:37,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:37,050 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893805287] [2021-03-24 20:10:37,050 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:37,050 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:37,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [287793802] [2021-03-24 20:10:37,050 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:37,050 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:37,051 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:37,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:37,052 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:37,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 350 transitions, 5316 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:37,065 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:37,065 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:37,065 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:37,841 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:10:38,084 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:10:38,294 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-03-24 20:10:39,433 INFO L129 PetriNetUnfolder]: 725/2611 cut-off events. [2021-03-24 20:10:39,434 INFO L130 PetriNetUnfolder]: For 34746/34787 co-relation queries the response was YES. [2021-03-24 20:10:39,451 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17597 conditions, 2611 events. 725/2611 cut-off events. For 34746/34787 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 25071 event pairs, 393 based on Foata normal form. 15/2588 useless extension candidates. Maximal degree in co-relation 17515. Up to 2059 conditions per place. [2021-03-24 20:10:39,456 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 279 selfloop transitions, 81 changer transitions 23/393 dead transitions. [2021-03-24 20:10:39,456 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 275 places, 393 transitions, 6674 flow [2021-03-24 20:10:39,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:39,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:39,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2479 transitions. [2021-03-24 20:10:39,459 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4954036770583533 [2021-03-24 20:10:39,459 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2479 transitions. [2021-03-24 20:10:39,460 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2479 transitions. [2021-03-24 20:10:39,460 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:39,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2479 transitions. [2021-03-24 20:10:39,462 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.72222222222223) internal successors, (2479), 18 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:39,465 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:39,466 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:39,466 INFO L185 Difference]: Start difference. First operand has 263 places, 350 transitions, 5316 flow. Second operand 18 states and 2479 transitions. [2021-03-24 20:10:39,466 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 275 places, 393 transitions, 6674 flow [2021-03-24 20:10:39,640 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 393 transitions, 6493 flow, removed 33 selfloop flow, removed 11 redundant places. [2021-03-24 20:10:39,646 INFO L241 Difference]: Finished difference. Result has 269 places, 354 transitions, 5433 flow [2021-03-24 20:10:39,647 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5149, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=350, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=269, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5433, PETRI_PLACES=269, PETRI_TRANSITIONS=354} [2021-03-24 20:10:39,647 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 203 predicate places. [2021-03-24 20:10:39,647 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 354 transitions, 5433 flow [2021-03-24 20:10:39,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:39,648 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:39,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:39,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-24 20:10:39,648 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:39,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:39,648 INFO L82 PathProgramCache]: Analyzing trace with hash -177765759, now seen corresponding path program 12 times [2021-03-24 20:10:39,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:39,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [913226735] [2021-03-24 20:10:39,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:39,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:39,731 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:39,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:39,732 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:39,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 20:10:39,739 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:39,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:39,751 INFO L142 QuantifierPusher]: treesize reduction 28, result has 40.4 percent of original size [2021-03-24 20:10:39,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 20:10:39,763 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-24 20:10:39,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:10:39,782 INFO L142 QuantifierPusher]: treesize reduction 28, result has 63.6 percent of original size [2021-03-24 20:10:39,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:10:39,810 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.2 percent of original size [2021-03-24 20:10:39,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:10:39,851 INFO L142 QuantifierPusher]: treesize reduction 28, result has 63.6 percent of original size [2021-03-24 20:10:39,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:10:39,852 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:10:39,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:39,874 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:10:39,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:10:39,895 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 20:10:39,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:10:39,915 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 20:10:39,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:10:39,935 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:39,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:39,959 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:39,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:39,972 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:10:39,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:39,992 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:39,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:40,014 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:10:40,015 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:10:40,035 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:10:40,036 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:10:40,056 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:10:40,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:10:40,087 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:10:40,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:40,109 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:40,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:40,126 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:40,126 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:40,127 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:40,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:40,149 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:40,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:40,200 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:40,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:40,222 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:40,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:40,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:40,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [913226735] [2021-03-24 20:10:40,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:40,243 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:40,243 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341916046] [2021-03-24 20:10:40,243 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:40,243 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:40,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:40,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:40,245 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:10:40,246 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 354 transitions, 5433 flow. Second operand has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:40,246 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:40,246 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:10:40,247 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:42,358 INFO L129 PetriNetUnfolder]: 763/2721 cut-off events. [2021-03-24 20:10:42,358 INFO L130 PetriNetUnfolder]: For 36548/36600 co-relation queries the response was YES. [2021-03-24 20:10:42,377 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18485 conditions, 2721 events. 763/2721 cut-off events. For 36548/36600 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 26300 event pairs, 387 based on Foata normal form. 14/2691 useless extension candidates. Maximal degree in co-relation 18401. Up to 2257 conditions per place. [2021-03-24 20:10:42,383 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 354 selfloop transitions, 48 changer transitions 27/435 dead transitions. [2021-03-24 20:10:42,383 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 435 transitions, 7335 flow [2021-03-24 20:10:42,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:10:42,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:10:42,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1702 transitions. [2021-03-24 20:10:42,402 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32222642938280954 [2021-03-24 20:10:42,402 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1702 transitions. [2021-03-24 20:10:42,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1702 transitions. [2021-03-24 20:10:42,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:42,403 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1702 transitions. [2021-03-24 20:10:42,404 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 89.57894736842105) internal successors, (1702), 19 states have internal predecessors, (1702), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:42,407 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:42,408 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:42,408 INFO L185 Difference]: Start difference. First operand has 269 places, 354 transitions, 5433 flow. Second operand 19 states and 1702 transitions. [2021-03-24 20:10:42,408 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 435 transitions, 7335 flow [2021-03-24 20:10:42,562 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 435 transitions, 7208 flow, removed 14 selfloop flow, removed 12 redundant places. [2021-03-24 20:10:42,568 INFO L241 Difference]: Finished difference. Result has 279 places, 378 transitions, 5824 flow [2021-03-24 20:10:42,568 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5316, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=354, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=308, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5824, PETRI_PLACES=279, PETRI_TRANSITIONS=378} [2021-03-24 20:10:42,568 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 213 predicate places. [2021-03-24 20:10:42,568 INFO L480 AbstractCegarLoop]: Abstraction has has 279 places, 378 transitions, 5824 flow [2021-03-24 20:10:42,568 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:42,568 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:42,569 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:42,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-24 20:10:42,569 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:42,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:42,569 INFO L82 PathProgramCache]: Analyzing trace with hash 1977112425, now seen corresponding path program 13 times [2021-03-24 20:10:42,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:42,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607236452] [2021-03-24 20:10:42,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:42,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:42,657 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:42,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:42,657 INFO L142 QuantifierPusher]: treesize reduction 10, result has 60.0 percent of original size [2021-03-24 20:10:42,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:42,668 INFO L142 QuantifierPusher]: treesize reduction 17, result has 61.4 percent of original size [2021-03-24 20:10:42,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:42,690 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:10:42,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:42,714 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:10:42,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:10:42,754 INFO L142 QuantifierPusher]: treesize reduction 24, result has 70.7 percent of original size [2021-03-24 20:10:42,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 20:10:42,806 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 20:10:42,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:42,842 INFO L142 QuantifierPusher]: treesize reduction 15, result has 70.6 percent of original size [2021-03-24 20:10:42,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:42,876 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 20:10:42,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:10:42,928 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.1 percent of original size [2021-03-24 20:10:42,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:10:42,983 INFO L142 QuantifierPusher]: treesize reduction 24, result has 68.4 percent of original size [2021-03-24 20:10:42,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:10:43,030 INFO L142 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-03-24 20:10:43,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:10:43,043 INFO L142 QuantifierPusher]: treesize reduction 29, result has 58.6 percent of original size [2021-03-24 20:10:43,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:10:43,079 INFO L142 QuantifierPusher]: treesize reduction 24, result has 69.6 percent of original size [2021-03-24 20:10:43,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:10:43,118 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 20:10:43,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:10:43,147 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 20:10:43,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:10:43,175 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:10:43,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:10:43,222 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:10:43,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:10:43,260 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:10:43,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:43,278 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:10:43,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:10:43,313 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 20:10:43,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:43,350 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:10:43,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:10:43,371 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:43,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:43,394 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:43,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:43,395 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:43,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:43,416 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:43,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607236452] [2021-03-24 20:10:43,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:43,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:43,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354613668] [2021-03-24 20:10:43,417 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:43,417 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:43,418 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:43,418 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=444, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:43,421 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:43,423 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 378 transitions, 5824 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:43,423 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:43,423 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:43,423 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:44,080 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2021-03-24 20:10:44,287 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 62 [2021-03-24 20:10:45,809 INFO L129 PetriNetUnfolder]: 755/2702 cut-off events. [2021-03-24 20:10:45,809 INFO L130 PetriNetUnfolder]: For 36774/36845 co-relation queries the response was YES. [2021-03-24 20:10:45,833 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18389 conditions, 2702 events. 755/2702 cut-off events. For 36774/36845 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 26363 event pairs, 305 based on Foata normal form. 39/2704 useless extension candidates. Maximal degree in co-relation 18301. Up to 1694 conditions per place. [2021-03-24 20:10:45,839 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 227 selfloop transitions, 182 changer transitions 12/431 dead transitions. [2021-03-24 20:10:45,840 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 431 transitions, 7436 flow [2021-03-24 20:10:45,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:10:45,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:10:45,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2618 transitions. [2021-03-24 20:10:45,842 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49564558879212417 [2021-03-24 20:10:45,842 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2618 transitions. [2021-03-24 20:10:45,842 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2618 transitions. [2021-03-24 20:10:45,842 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:45,842 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2618 transitions. [2021-03-24 20:10:45,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.78947368421052) internal successors, (2618), 19 states have internal predecessors, (2618), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:45,848 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:45,848 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:45,848 INFO L185 Difference]: Start difference. First operand has 279 places, 378 transitions, 5824 flow. Second operand 19 states and 2618 transitions. [2021-03-24 20:10:45,848 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 431 transitions, 7436 flow [2021-03-24 20:10:45,995 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 283 places, 431 transitions, 7357 flow, removed 25 selfloop flow, removed 10 redundant places. [2021-03-24 20:10:46,002 INFO L241 Difference]: Finished difference. Result has 287 places, 384 transitions, 6240 flow [2021-03-24 20:10:46,002 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5754, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=378, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=174, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6240, PETRI_PLACES=287, PETRI_TRANSITIONS=384} [2021-03-24 20:10:46,002 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 221 predicate places. [2021-03-24 20:10:46,002 INFO L480 AbstractCegarLoop]: Abstraction has has 287 places, 384 transitions, 6240 flow [2021-03-24 20:10:46,003 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:46,003 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:46,003 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:46,003 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-24 20:10:46,003 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:46,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:46,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1202176447, now seen corresponding path program 14 times [2021-03-24 20:10:46,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:46,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685810299] [2021-03-24 20:10:46,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:46,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:46,096 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:46,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:46,097 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:46,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:46,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:46,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:46,118 INFO L142 QuantifierPusher]: treesize reduction 30, result has 43.4 percent of original size [2021-03-24 20:10:46,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:46,131 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 20:10:46,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:46,153 INFO L142 QuantifierPusher]: treesize reduction 30, result has 68.8 percent of original size [2021-03-24 20:10:46,153 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-03-24 20:10:46,209 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.1 percent of original size [2021-03-24 20:10:46,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:46,232 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 20:10:46,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:46,254 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 20:10:46,254 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:10:46,295 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:10:46,295 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:10:46,332 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:10:46,333 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:10:46,363 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:10:46,363 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:10:46,397 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 20:10:46,398 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 20:10:46,431 INFO L142 QuantifierPusher]: treesize reduction 45, result has 45.8 percent of original size [2021-03-24 20:10:46,431 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:10:46,466 INFO L142 QuantifierPusher]: treesize reduction 45, result has 42.3 percent of original size [2021-03-24 20:10:46,476 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-24 20:10:46,492 INFO L142 QuantifierPusher]: treesize reduction 47, result has 36.5 percent of original size [2021-03-24 20:10:46,493 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 20:10:46,540 INFO L142 QuantifierPusher]: treesize reduction 45, result has 45.8 percent of original size [2021-03-24 20:10:46,541 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:10:46,588 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.8 percent of original size [2021-03-24 20:10:46,589 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 20:10:46,638 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:10:46,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:46,670 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:10:46,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:46,688 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:10:46,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:46,707 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:10:46,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:46,731 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:10:46,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:46,759 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:10:46,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:46,783 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:46,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:46,806 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685810299] [2021-03-24 20:10:46,806 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:46,806 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:10:46,806 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611800200] [2021-03-24 20:10:46,806 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:10:46,806 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:46,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:10:46,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:10:46,808 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:10:46,809 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 287 places, 384 transitions, 6240 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:46,809 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:46,809 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:10:46,809 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:47,694 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 20:10:47,934 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-03-24 20:10:48,209 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2021-03-24 20:10:49,450 INFO L129 PetriNetUnfolder]: 771/2775 cut-off events. [2021-03-24 20:10:49,451 INFO L130 PetriNetUnfolder]: For 41210/41260 co-relation queries the response was YES. [2021-03-24 20:10:49,470 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19300 conditions, 2775 events. 771/2775 cut-off events. For 41210/41260 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 26922 event pairs, 385 based on Foata normal form. 14/2743 useless extension candidates. Maximal degree in co-relation 19211. Up to 2193 conditions per place. [2021-03-24 20:10:49,476 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 304 selfloop transitions, 90 changer transitions 23/427 dead transitions. [2021-03-24 20:10:49,476 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 302 places, 427 transitions, 7654 flow [2021-03-24 20:10:49,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:49,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:49,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2479 transitions. [2021-03-24 20:10:49,478 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4954036770583533 [2021-03-24 20:10:49,478 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2479 transitions. [2021-03-24 20:10:49,478 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2479 transitions. [2021-03-24 20:10:49,478 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:49,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2479 transitions. [2021-03-24 20:10:49,480 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.72222222222223) internal successors, (2479), 18 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:49,482 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:49,482 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:49,482 INFO L185 Difference]: Start difference. First operand has 287 places, 384 transitions, 6240 flow. Second operand 18 states and 2479 transitions. [2021-03-24 20:10:49,482 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 302 places, 427 transitions, 7654 flow [2021-03-24 20:10:49,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 427 transitions, 7284 flow, removed 24 selfloop flow, removed 12 redundant places. [2021-03-24 20:10:49,635 INFO L241 Difference]: Finished difference. Result has 294 places, 387 transitions, 6164 flow [2021-03-24 20:10:49,635 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5886, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=384, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=295, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6164, PETRI_PLACES=294, PETRI_TRANSITIONS=387} [2021-03-24 20:10:49,635 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 228 predicate places. [2021-03-24 20:10:49,635 INFO L480 AbstractCegarLoop]: Abstraction has has 294 places, 387 transitions, 6164 flow [2021-03-24 20:10:49,636 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:49,636 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:49,636 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:49,636 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-24 20:10:49,636 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:49,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:49,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1991447905, now seen corresponding path program 15 times [2021-03-24 20:10:49,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:49,636 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481055066] [2021-03-24 20:10:49,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:49,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:49,717 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:49,717 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:49,718 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:49,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:49,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:49,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:49,739 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:10:49,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:49,753 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:10:49,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:49,776 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:49,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:49,807 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:10:49,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:10:49,849 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:49,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:49,850 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:49,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:49,874 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:10:49,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:10:49,897 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:49,898 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:49,938 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:49,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:49,974 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:49,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:50,008 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:10:50,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:10:50,023 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:50,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:50,044 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:50,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:50,065 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:10:50,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:50,086 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-03-24 20:10:50,087 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:10:50,123 INFO L142 QuantifierPusher]: treesize reduction 47, result has 41.3 percent of original size [2021-03-24 20:10:50,123 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 20:10:50,164 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:10:50,165 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:10:50,219 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:10:50,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:50,247 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:50,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:50,265 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:50,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:50,265 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:50,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:50,287 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:50,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:50,311 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:50,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:50,333 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:50,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:50,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:50,355 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481055066] [2021-03-24 20:10:50,355 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:50,355 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:10:50,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510731684] [2021-03-24 20:10:50,355 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:10:50,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:50,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:10:50,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:10:50,357 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:10:50,358 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 294 places, 387 transitions, 6164 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:50,358 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:50,358 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:10:50,358 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:51,153 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 20:10:51,376 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-03-24 20:10:51,594 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-03-24 20:10:51,794 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 73 [2021-03-24 20:10:52,812 INFO L129 PetriNetUnfolder]: 759/2733 cut-off events. [2021-03-24 20:10:52,812 INFO L130 PetriNetUnfolder]: For 40807/40863 co-relation queries the response was YES. [2021-03-24 20:10:52,830 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19098 conditions, 2733 events. 759/2733 cut-off events. For 40807/40863 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 26461 event pairs, 380 based on Foata normal form. 26/2717 useless extension candidates. Maximal degree in co-relation 19006. Up to 2123 conditions per place. [2021-03-24 20:10:52,835 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 306 selfloop transitions, 87 changer transitions 21/420 dead transitions. [2021-03-24 20:10:52,835 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 420 transitions, 7434 flow [2021-03-24 20:10:52,836 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:52,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:52,838 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1615 transitions. [2021-03-24 20:10:52,838 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3227418065547562 [2021-03-24 20:10:52,838 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1615 transitions. [2021-03-24 20:10:52,838 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1615 transitions. [2021-03-24 20:10:52,839 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:52,839 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1615 transitions. [2021-03-24 20:10:52,840 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.72222222222223) internal successors, (1615), 18 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:52,842 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:52,843 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:52,843 INFO L185 Difference]: Start difference. First operand has 294 places, 387 transitions, 6164 flow. Second operand 18 states and 1615 transitions. [2021-03-24 20:10:52,843 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 420 transitions, 7434 flow [2021-03-24 20:10:53,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 297 places, 420 transitions, 7290 flow, removed 10 selfloop flow, removed 11 redundant places. [2021-03-24 20:10:53,036 INFO L241 Difference]: Finished difference. Result has 303 places, 391 transitions, 6302 flow [2021-03-24 20:10:53,037 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6024, PETRI_DIFFERENCE_MINUEND_PLACES=280, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=387, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=83, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=301, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6302, PETRI_PLACES=303, PETRI_TRANSITIONS=391} [2021-03-24 20:10:53,037 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 237 predicate places. [2021-03-24 20:10:53,037 INFO L480 AbstractCegarLoop]: Abstraction has has 303 places, 391 transitions, 6302 flow [2021-03-24 20:10:53,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:53,037 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:53,037 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:53,037 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-24 20:10:53,037 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:53,037 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:53,037 INFO L82 PathProgramCache]: Analyzing trace with hash -2106761297, now seen corresponding path program 16 times [2021-03-24 20:10:53,038 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:53,038 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1905132100] [2021-03-24 20:10:53,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:53,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:53,117 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:53,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:53,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:53,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:53,124 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:53,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:53,139 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:10:53,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:53,153 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:10:53,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:53,176 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:53,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:53,207 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:10:53,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:10:53,248 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:53,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:53,250 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:53,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:53,273 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:10:53,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:10:53,296 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:53,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:53,337 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:53,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:53,369 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:53,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:53,395 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:10:53,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:10:53,410 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:53,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:53,430 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:10:53,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:53,451 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:10:53,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:53,484 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-03-24 20:10:53,484 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:10:53,520 INFO L142 QuantifierPusher]: treesize reduction 47, result has 41.3 percent of original size [2021-03-24 20:10:53,521 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 20:10:53,554 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:10:53,555 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:10:53,597 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:10:53,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:53,620 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:53,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:53,637 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:53,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:53,638 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:53,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:53,661 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:53,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:53,692 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:53,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:53,715 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:53,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:53,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:53,737 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1905132100] [2021-03-24 20:10:53,737 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:53,737 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:10:53,737 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134469806] [2021-03-24 20:10:53,737 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:10:53,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:53,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:10:53,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:10:53,739 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:10:53,740 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 303 places, 391 transitions, 6302 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:53,740 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:53,740 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:10:53,740 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:54,752 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2021-03-24 20:10:54,963 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-03-24 20:10:55,204 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 73 [2021-03-24 20:10:56,211 INFO L129 PetriNetUnfolder]: 762/2740 cut-off events. [2021-03-24 20:10:56,212 INFO L130 PetriNetUnfolder]: For 42997/43047 co-relation queries the response was YES. [2021-03-24 20:10:56,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19437 conditions, 2740 events. 762/2740 cut-off events. For 42997/43047 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 26531 event pairs, 395 based on Foata normal form. 30/2726 useless extension candidates. Maximal degree in co-relation 19341. Up to 2121 conditions per place. [2021-03-24 20:10:56,240 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 305 selfloop transitions, 92 changer transitions 27/430 dead transitions. [2021-03-24 20:10:56,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 315 places, 430 transitions, 7718 flow [2021-03-24 20:10:56,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:56,243 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:56,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1614 transitions. [2021-03-24 20:10:56,244 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3225419664268585 [2021-03-24 20:10:56,244 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1614 transitions. [2021-03-24 20:10:56,244 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1614 transitions. [2021-03-24 20:10:56,244 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:56,244 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1614 transitions. [2021-03-24 20:10:56,245 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.66666666666667) internal successors, (1614), 18 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:56,247 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:56,247 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:56,247 INFO L185 Difference]: Start difference. First operand has 303 places, 391 transitions, 6302 flow. Second operand 18 states and 1614 transitions. [2021-03-24 20:10:56,247 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 315 places, 430 transitions, 7718 flow [2021-03-24 20:10:56,421 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 303 places, 430 transitions, 7523 flow, removed 19 selfloop flow, removed 12 redundant places. [2021-03-24 20:10:56,427 INFO L241 Difference]: Finished difference. Result has 308 places, 391 transitions, 6336 flow [2021-03-24 20:10:56,427 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6113, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=90, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=299, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6336, PETRI_PLACES=308, PETRI_TRANSITIONS=391} [2021-03-24 20:10:56,428 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 242 predicate places. [2021-03-24 20:10:56,428 INFO L480 AbstractCegarLoop]: Abstraction has has 308 places, 391 transitions, 6336 flow [2021-03-24 20:10:56,428 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:56,428 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:56,428 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:56,428 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-24 20:10:56,428 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:56,429 INFO L82 PathProgramCache]: Analyzing trace with hash -1099385401, now seen corresponding path program 17 times [2021-03-24 20:10:56,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:56,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899641220] [2021-03-24 20:10:56,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:56,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:56,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:56,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:56,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:56,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:56,523 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:56,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:56,535 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:10:56,536 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:56,556 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:10:56,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:56,574 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:56,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:56,597 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:10:56,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:10:56,629 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:56,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:56,630 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:10:56,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:10:56,648 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:10:56,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:10:56,666 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:56,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:56,699 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:10:56,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:10:56,733 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:10:56,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:10:56,759 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:10:56,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:10:56,773 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:56,774 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:56,794 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:10:56,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:10:56,816 INFO L142 QuantifierPusher]: treesize reduction 38, result has 53.1 percent of original size [2021-03-24 20:10:56,816 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 20:10:56,853 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-03-24 20:10:56,853 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:10:56,889 INFO L142 QuantifierPusher]: treesize reduction 45, result has 44.4 percent of original size [2021-03-24 20:10:56,890 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-03-24 20:10:56,923 INFO L142 QuantifierPusher]: treesize reduction 25, result has 49.0 percent of original size [2021-03-24 20:10:56,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:10:56,945 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:10:56,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:56,971 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:10:56,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:10:56,989 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:56,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:56,990 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:10:56,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:57,012 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:10:57,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:57,037 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:10:57,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:10:57,059 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:10:57,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:10:57,080 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:10:57,080 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899641220] [2021-03-24 20:10:57,081 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:10:57,081 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:10:57,081 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454422388] [2021-03-24 20:10:57,081 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:10:57,081 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:10:57,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:10:57,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:10:57,084 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:10:57,085 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 308 places, 391 transitions, 6336 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:57,085 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:10:57,085 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:10:57,085 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:10:57,883 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 20:10:58,058 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-03-24 20:10:58,343 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-03-24 20:10:59,582 INFO L129 PetriNetUnfolder]: 780/2800 cut-off events. [2021-03-24 20:10:59,583 INFO L130 PetriNetUnfolder]: For 44585/44643 co-relation queries the response was YES. [2021-03-24 20:10:59,604 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19946 conditions, 2800 events. 780/2800 cut-off events. For 44585/44643 co-relation queries the response was YES. Maximal size of possible extension queue 255. Compared 27245 event pairs, 384 based on Foata normal form. 37/2791 useless extension candidates. Maximal degree in co-relation 19848. Up to 2136 conditions per place. [2021-03-24 20:10:59,610 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 309 selfloop transitions, 102 changer transitions 22/439 dead transitions. [2021-03-24 20:10:59,610 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 320 places, 439 transitions, 7948 flow [2021-03-24 20:10:59,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:10:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:10:59,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1623 transitions. [2021-03-24 20:10:59,612 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32434052757793763 [2021-03-24 20:10:59,612 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1623 transitions. [2021-03-24 20:10:59,612 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1623 transitions. [2021-03-24 20:10:59,613 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:10:59,613 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1623 transitions. [2021-03-24 20:10:59,614 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.16666666666667) internal successors, (1623), 18 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:59,616 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:59,616 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:59,616 INFO L185 Difference]: Start difference. First operand has 308 places, 391 transitions, 6336 flow. Second operand 18 states and 1623 transitions. [2021-03-24 20:10:59,616 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 320 places, 439 transitions, 7948 flow [2021-03-24 20:10:59,791 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 306 places, 439 transitions, 7736 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-03-24 20:10:59,797 INFO L241 Difference]: Finished difference. Result has 311 places, 403 transitions, 6638 flow [2021-03-24 20:10:59,798 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6138, PETRI_DIFFERENCE_MINUEND_PLACES=289, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=391, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6638, PETRI_PLACES=311, PETRI_TRANSITIONS=403} [2021-03-24 20:10:59,798 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 245 predicate places. [2021-03-24 20:10:59,798 INFO L480 AbstractCegarLoop]: Abstraction has has 311 places, 403 transitions, 6638 flow [2021-03-24 20:10:59,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:10:59,798 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:10:59,798 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:10:59,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-24 20:10:59,798 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:10:59,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:10:59,799 INFO L82 PathProgramCache]: Analyzing trace with hash -420034049, now seen corresponding path program 18 times [2021-03-24 20:10:59,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:10:59,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607494978] [2021-03-24 20:10:59,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:10:59,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:10:59,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:59,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:10:59,875 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:59,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:10:59,882 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:10:59,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:10:59,896 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:10:59,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:10:59,909 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:10:59,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:10:59,929 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:10:59,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:10:59,960 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:10:59,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:11:00,003 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:11:00,004 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:00,004 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:00,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:00,022 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:11:00,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:00,043 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:00,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:00,074 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:00,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:00,107 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:00,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:00,132 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:11:00,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:11:00,147 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:00,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:00,168 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:00,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:00,188 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:00,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:00,210 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-03-24 20:11:00,211 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:11:00,247 INFO L142 QuantifierPusher]: treesize reduction 45, result has 44.4 percent of original size [2021-03-24 20:11:00,249 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-03-24 20:11:00,283 INFO L142 QuantifierPusher]: treesize reduction 25, result has 49.0 percent of original size [2021-03-24 20:11:00,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:00,305 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:11:00,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:00,327 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:00,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:00,345 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:00,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:00,346 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:00,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:00,368 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:00,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:00,392 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:00,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:00,414 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:00,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:00,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:00,436 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607494978] [2021-03-24 20:11:00,436 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:00,436 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:11:00,436 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [802827329] [2021-03-24 20:11:00,436 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:11:00,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:00,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:11:00,436 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:11:00,438 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:00,439 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 311 places, 403 transitions, 6638 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:00,439 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:00,439 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:00,439 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:01,448 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2021-03-24 20:11:01,645 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-03-24 20:11:02,837 INFO L129 PetriNetUnfolder]: 773/2792 cut-off events. [2021-03-24 20:11:02,837 INFO L130 PetriNetUnfolder]: For 45858/45916 co-relation queries the response was YES. [2021-03-24 20:11:02,861 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20036 conditions, 2792 events. 773/2792 cut-off events. For 45858/45916 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 27210 event pairs, 385 based on Foata normal form. 35/2784 useless extension candidates. Maximal degree in co-relation 19936. Up to 2110 conditions per place. [2021-03-24 20:11:02,868 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 316 selfloop transitions, 105 changer transitions 26/453 dead transitions. [2021-03-24 20:11:02,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 325 places, 453 transitions, 8302 flow [2021-03-24 20:11:02,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:02,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:02,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1620 transitions. [2021-03-24 20:11:02,924 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3237410071942446 [2021-03-24 20:11:02,924 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1620 transitions. [2021-03-24 20:11:02,924 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1620 transitions. [2021-03-24 20:11:02,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:02,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1620 transitions. [2021-03-24 20:11:02,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:02,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:02,927 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:02,927 INFO L185 Difference]: Start difference. First operand has 311 places, 403 transitions, 6638 flow. Second operand 18 states and 1620 transitions. [2021-03-24 20:11:02,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 325 places, 453 transitions, 8302 flow [2021-03-24 20:11:03,104 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 453 transitions, 8091 flow, removed 47 selfloop flow, removed 11 redundant places. [2021-03-24 20:11:03,111 INFO L241 Difference]: Finished difference. Result has 318 places, 407 transitions, 6759 flow [2021-03-24 20:11:03,111 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6433, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=403, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=99, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=300, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6759, PETRI_PLACES=318, PETRI_TRANSITIONS=407} [2021-03-24 20:11:03,112 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 252 predicate places. [2021-03-24 20:11:03,112 INFO L480 AbstractCegarLoop]: Abstraction has has 318 places, 407 transitions, 6759 flow [2021-03-24 20:11:03,112 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:03,112 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:03,112 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:03,112 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-24 20:11:03,112 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:03,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:03,112 INFO L82 PathProgramCache]: Analyzing trace with hash 1083578263, now seen corresponding path program 19 times [2021-03-24 20:11:03,113 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:03,113 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291655632] [2021-03-24 20:11:03,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:03,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:03,194 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:03,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:03,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:03,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:03,206 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:03,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:03,230 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-24 20:11:03,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:03,260 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.4 percent of original size [2021-03-24 20:11:03,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 20:11:03,316 INFO L142 QuantifierPusher]: treesize reduction 34, result has 70.2 percent of original size [2021-03-24 20:11:03,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 20:11:03,374 INFO L142 QuantifierPusher]: treesize reduction 12, result has 85.9 percent of original size [2021-03-24 20:11:03,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 20:11:03,453 INFO L142 QuantifierPusher]: treesize reduction 15, result has 77.9 percent of original size [2021-03-24 20:11:03,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:03,498 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.0 percent of original size [2021-03-24 20:11:03,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:11:03,542 INFO L142 QuantifierPusher]: treesize reduction 12, result has 84.0 percent of original size [2021-03-24 20:11:03,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:11:03,597 INFO L142 QuantifierPusher]: treesize reduction 12, result has 84.0 percent of original size [2021-03-24 20:11:03,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:11:03,661 INFO L142 QuantifierPusher]: treesize reduction 24, result has 69.6 percent of original size [2021-03-24 20:11:03,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:11:03,715 INFO L142 QuantifierPusher]: treesize reduction 24, result has 70.7 percent of original size [2021-03-24 20:11:03,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 20:11:03,736 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 20:11:03,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:03,755 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:11:03,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:03,803 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:11:03,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:03,855 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 20:11:03,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:03,911 INFO L142 QuantifierPusher]: treesize reduction 90, result has 37.9 percent of original size [2021-03-24 20:11:03,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:11:03,963 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:11:03,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:03,999 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:11:04,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:04,017 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:11:04,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:04,050 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 20:11:04,051 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:04,085 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:11:04,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:04,105 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:04,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:04,126 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:04,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:04,127 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:04,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:04,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:04,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291655632] [2021-03-24 20:11:04,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:04,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:04,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609354592] [2021-03-24 20:11:04,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:04,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:04,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:04,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=440, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:04,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:04,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 407 transitions, 6759 flow. Second operand has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:04,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:04,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:04,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:04,752 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-03-24 20:11:04,945 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-03-24 20:11:05,191 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-03-24 20:11:06,623 INFO L129 PetriNetUnfolder]: 752/2749 cut-off events. [2021-03-24 20:11:06,624 INFO L130 PetriNetUnfolder]: For 46449/46520 co-relation queries the response was YES. [2021-03-24 20:11:06,649 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19921 conditions, 2749 events. 752/2749 cut-off events. For 46449/46520 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 26841 event pairs, 377 based on Foata normal form. 36/2745 useless extension candidates. Maximal degree in co-relation 19819. Up to 2071 conditions per place. [2021-03-24 20:11:06,657 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 308 selfloop transitions, 125 changer transitions 14/453 dead transitions. [2021-03-24 20:11:06,657 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 333 places, 453 transitions, 8324 flow [2021-03-24 20:11:06,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:11:06,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:11:06,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1711 transitions. [2021-03-24 20:11:06,659 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.323930329420674 [2021-03-24 20:11:06,659 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1711 transitions. [2021-03-24 20:11:06,659 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1711 transitions. [2021-03-24 20:11:06,659 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:06,659 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1711 transitions. [2021-03-24 20:11:06,660 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 90.05263157894737) internal successors, (1711), 19 states have internal predecessors, (1711), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,663 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,663 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,664 INFO L185 Difference]: Start difference. First operand has 318 places, 407 transitions, 6759 flow. Second operand 19 states and 1711 transitions. [2021-03-24 20:11:06,664 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 333 places, 453 transitions, 8324 flow [2021-03-24 20:11:06,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 318 places, 453 transitions, 8052 flow, removed 22 selfloop flow, removed 15 redundant places. [2021-03-24 20:11:06,868 INFO L241 Difference]: Finished difference. Result has 323 places, 413 transitions, 6911 flow [2021-03-24 20:11:06,868 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6491, PETRI_DIFFERENCE_MINUEND_PLACES=300, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=407, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=284, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6911, PETRI_PLACES=323, PETRI_TRANSITIONS=413} [2021-03-24 20:11:06,868 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 257 predicate places. [2021-03-24 20:11:06,868 INFO L480 AbstractCegarLoop]: Abstraction has has 323 places, 413 transitions, 6911 flow [2021-03-24 20:11:06,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:06,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:06,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:06,869 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-24 20:11:06,869 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:06,869 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:06,869 INFO L82 PathProgramCache]: Analyzing trace with hash -999227885, now seen corresponding path program 20 times [2021-03-24 20:11:06,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:06,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802925721] [2021-03-24 20:11:06,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:06,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:06,964 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:06,965 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:06,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:06,976 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:06,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:07,000 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:11:07,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:07,027 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:11:07,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:07,079 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:11:07,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:11:07,135 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:07,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:07,156 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:07,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:07,178 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:07,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:07,218 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:07,218 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:07,252 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:07,253 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:07,282 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:07,282 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:07,312 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 20:11:07,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:07,344 INFO L142 QuantifierPusher]: treesize reduction 35, result has 60.7 percent of original size [2021-03-24 20:11:07,345 INFO L147 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size 38 [2021-03-24 20:11:07,387 INFO L142 QuantifierPusher]: treesize reduction 35, result has 58.3 percent of original size [2021-03-24 20:11:07,387 INFO L147 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size 33 [2021-03-24 20:11:07,403 INFO L142 QuantifierPusher]: treesize reduction 40, result has 51.8 percent of original size [2021-03-24 20:11:07,404 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 20:11:07,453 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:11:07,453 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:11:07,493 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:11:07,494 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:11:07,532 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:11:07,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:07,556 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:07,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:07,575 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:07,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:07,576 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:07,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:07,600 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:07,601 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:07,626 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:07,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:07,649 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:07,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:07,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:07,671 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802925721] [2021-03-24 20:11:07,671 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:07,671 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:07,671 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1668384323] [2021-03-24 20:11:07,672 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:07,672 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:07,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:07,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:07,674 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:07,675 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 413 transitions, 6911 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:07,675 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:07,675 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:07,675 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:08,477 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-03-24 20:11:08,714 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:11:08,977 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:11:09,177 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:11:10,247 INFO L129 PetriNetUnfolder]: 756/2764 cut-off events. [2021-03-24 20:11:10,247 INFO L130 PetriNetUnfolder]: For 49801/49853 co-relation queries the response was YES. [2021-03-24 20:11:10,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20330 conditions, 2764 events. 756/2764 cut-off events. For 49801/49853 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 27028 event pairs, 394 based on Foata normal form. 15/2732 useless extension candidates. Maximal degree in co-relation 20225. Up to 2253 conditions per place. [2021-03-24 20:11:10,277 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 340 selfloop transitions, 70 changer transitions 22/442 dead transitions. [2021-03-24 20:11:10,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 338 places, 442 transitions, 8146 flow [2021-03-24 20:11:10,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:10,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:10,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 20:11:10,279 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 20:11:10,279 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 20:11:10,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 20:11:10,280 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:10,280 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 20:11:10,281 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.33333333333334) internal successors, (2472), 18 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,283 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,283 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,283 INFO L185 Difference]: Start difference. First operand has 323 places, 413 transitions, 6911 flow. Second operand 18 states and 2472 transitions. [2021-03-24 20:11:10,283 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 338 places, 442 transitions, 8146 flow [2021-03-24 20:11:10,503 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 325 places, 442 transitions, 7837 flow, removed 45 selfloop flow, removed 13 redundant places. [2021-03-24 20:11:10,510 INFO L241 Difference]: Finished difference. Result has 329 places, 410 transitions, 6705 flow [2021-03-24 20:11:10,510 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6604, PETRI_DIFFERENCE_MINUEND_PLACES=308, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=413, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=343, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6705, PETRI_PLACES=329, PETRI_TRANSITIONS=410} [2021-03-24 20:11:10,510 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 263 predicate places. [2021-03-24 20:11:10,510 INFO L480 AbstractCegarLoop]: Abstraction has has 329 places, 410 transitions, 6705 flow [2021-03-24 20:11:10,511 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:10,511 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:10,511 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:10,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-24 20:11:10,511 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:10,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:10,511 INFO L82 PathProgramCache]: Analyzing trace with hash 360712389, now seen corresponding path program 21 times [2021-03-24 20:11:10,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:10,511 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189620944] [2021-03-24 20:11:10,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:10,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:10,585 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:10,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:10,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:10,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:10,593 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:10,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:10,606 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:11:10,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:10,620 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:11:10,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:10,641 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:11:10,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:10,666 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:11:10,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:11:10,712 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:11:10,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:10,713 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:10,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:10,739 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:11:10,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:10,762 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:10,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:10,803 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:10,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:10,847 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:10,880 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:11:10,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:11:10,900 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:10,900 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:10,927 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:10,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:10,955 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.2 percent of original size [2021-03-24 20:11:10,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:11:11,002 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 20:11:11,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:11,050 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.0 percent of original size [2021-03-24 20:11:11,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:11:11,121 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:11:11,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:11,163 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:11:11,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:11,164 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:11,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:11,191 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:11,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:11,208 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:11,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:11,231 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:11,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:11,256 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:11,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:11,278 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:11,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:11,300 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:11,300 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189620944] [2021-03-24 20:11:11,300 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:11,300 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:11:11,300 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184162407] [2021-03-24 20:11:11,300 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:11:11,300 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:11,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:11:11,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:11:11,302 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:11,303 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 329 places, 410 transitions, 6705 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:11,303 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:11,303 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:11,303 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:12,082 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 20:11:12,373 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2021-03-24 20:11:12,559 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2021-03-24 20:11:13,753 INFO L129 PetriNetUnfolder]: 777/2820 cut-off events. [2021-03-24 20:11:13,754 INFO L130 PetriNetUnfolder]: For 53076/53132 co-relation queries the response was YES. [2021-03-24 20:11:13,779 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20971 conditions, 2820 events. 777/2820 cut-off events. For 53076/53132 co-relation queries the response was YES. Maximal size of possible extension queue 265. Compared 27592 event pairs, 395 based on Foata normal form. 25/2804 useless extension candidates. Maximal degree in co-relation 20863. Up to 2099 conditions per place. [2021-03-24 20:11:13,786 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 334 selfloop transitions, 100 changer transitions 30/470 dead transitions. [2021-03-24 20:11:13,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 341 places, 470 transitions, 8553 flow [2021-03-24 20:11:13,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:13,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:13,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1623 transitions. [2021-03-24 20:11:13,787 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32434052757793763 [2021-03-24 20:11:13,787 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1623 transitions. [2021-03-24 20:11:13,787 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1623 transitions. [2021-03-24 20:11:13,788 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:13,788 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1623 transitions. [2021-03-24 20:11:13,789 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.16666666666667) internal successors, (1623), 18 states have internal predecessors, (1623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:13,790 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:13,791 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:13,791 INFO L185 Difference]: Start difference. First operand has 329 places, 410 transitions, 6705 flow. Second operand 18 states and 1623 transitions. [2021-03-24 20:11:13,791 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 341 places, 470 transitions, 8553 flow [2021-03-24 20:11:14,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 326 places, 470 transitions, 8393 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-24 20:11:14,085 INFO L241 Difference]: Finished difference. Result has 332 places, 424 transitions, 7058 flow [2021-03-24 20:11:14,086 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6555, PETRI_DIFFERENCE_MINUEND_PLACES=309, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=410, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=318, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7058, PETRI_PLACES=332, PETRI_TRANSITIONS=424} [2021-03-24 20:11:14,086 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 266 predicate places. [2021-03-24 20:11:14,086 INFO L480 AbstractCegarLoop]: Abstraction has has 332 places, 424 transitions, 7058 flow [2021-03-24 20:11:14,086 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:14,086 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:14,086 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:14,086 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-24 20:11:14,086 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:14,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:14,087 INFO L82 PathProgramCache]: Analyzing trace with hash 451526711, now seen corresponding path program 22 times [2021-03-24 20:11:14,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:14,087 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811916396] [2021-03-24 20:11:14,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:14,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:14,164 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:14,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:14,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:14,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:14,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:14,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:14,186 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:11:14,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:14,199 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:11:14,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:14,220 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:11:14,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:14,246 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:11:14,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:11:14,288 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:11:14,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:14,289 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:14,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:14,313 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:11:14,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:14,336 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:14,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:14,377 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:14,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:14,419 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:14,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:14,452 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:11:14,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:11:14,471 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:14,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:14,497 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:14,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:14,524 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:14,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:14,552 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:14,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:14,583 INFO L142 QuantifierPusher]: treesize reduction 17, result has 75.0 percent of original size [2021-03-24 20:11:14,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:11:14,652 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:11:14,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:14,693 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:11:14,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:14,723 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:14,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:14,745 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:14,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:14,746 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:14,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:14,775 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:14,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:14,806 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:14,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:14,835 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:14,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:14,863 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:14,863 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811916396] [2021-03-24 20:11:14,863 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:14,863 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:11:14,863 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48400155] [2021-03-24 20:11:14,864 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:11:14,864 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:14,864 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:11:14,864 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:11:14,866 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:14,867 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 332 places, 424 transitions, 7058 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:14,867 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:14,867 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:14,867 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:15,997 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 66 [2021-03-24 20:11:17,524 INFO L129 PetriNetUnfolder]: 770/2805 cut-off events. [2021-03-24 20:11:17,524 INFO L130 PetriNetUnfolder]: For 53448/53510 co-relation queries the response was YES. [2021-03-24 20:11:17,549 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20944 conditions, 2805 events. 770/2805 cut-off events. For 53448/53510 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 27460 event pairs, 394 based on Foata normal form. 34/2795 useless extension candidates. Maximal degree in co-relation 20833. Up to 2090 conditions per place. [2021-03-24 20:11:17,556 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 312 selfloop transitions, 126 changer transitions 34/478 dead transitions. [2021-03-24 20:11:17,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 345 places, 478 transitions, 8785 flow [2021-03-24 20:11:17,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:17,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:17,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1624 transitions. [2021-03-24 20:11:17,557 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32454036770583533 [2021-03-24 20:11:17,557 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1624 transitions. [2021-03-24 20:11:17,557 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1624 transitions. [2021-03-24 20:11:17,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:17,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1624 transitions. [2021-03-24 20:11:17,559 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.22222222222223) internal successors, (1624), 18 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:17,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:17,562 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:17,562 INFO L185 Difference]: Start difference. First operand has 332 places, 424 transitions, 7058 flow. Second operand 18 states and 1624 transitions. [2021-03-24 20:11:17,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 345 places, 478 transitions, 8785 flow [2021-03-24 20:11:17,789 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 478 transitions, 8577 flow, removed 39 selfloop flow, removed 11 redundant places. [2021-03-24 20:11:17,797 INFO L241 Difference]: Finished difference. Result has 339 places, 426 transitions, 7219 flow [2021-03-24 20:11:17,797 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6874, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=424, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=124, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=298, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7219, PETRI_PLACES=339, PETRI_TRANSITIONS=426} [2021-03-24 20:11:17,797 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 273 predicate places. [2021-03-24 20:11:17,797 INFO L480 AbstractCegarLoop]: Abstraction has has 339 places, 426 transitions, 7219 flow [2021-03-24 20:11:17,798 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:17,798 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:17,798 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:17,798 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-24 20:11:17,798 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:17,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:17,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1647654501, now seen corresponding path program 23 times [2021-03-24 20:11:17,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:17,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1041215211] [2021-03-24 20:11:17,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:17,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:17,877 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:17,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:17,878 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:17,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:17,888 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:17,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:17,910 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:11:17,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:17,939 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:11:17,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:17,980 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:11:17,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:11:18,023 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:18,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:18,040 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:18,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:18,057 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:18,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:18,089 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:18,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:18,118 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:18,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:18,148 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:11:18,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:18,183 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:11:18,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:18,197 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:11:18,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:11:18,230 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:11:18,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:11:18,268 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:11:18,268 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:18,293 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:11:18,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:18,320 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:11:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:18,344 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:11:18,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:18,368 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:18,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:18,387 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:18,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:18,388 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:18,388 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:18,411 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:18,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:18,437 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:18,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:18,461 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:18,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:18,484 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:18,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1041215211] [2021-03-24 20:11:18,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:18,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:18,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [691357355] [2021-03-24 20:11:18,485 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:18,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:18,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:18,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:18,487 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:18,488 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 426 transitions, 7219 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:18,488 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:18,488 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:18,488 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:19,274 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:11:19,499 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 20:11:19,747 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 20:11:20,985 INFO L129 PetriNetUnfolder]: 756/2778 cut-off events. [2021-03-24 20:11:20,985 INFO L130 PetriNetUnfolder]: For 54152/54216 co-relation queries the response was YES. [2021-03-24 20:11:21,011 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20785 conditions, 2778 events. 756/2778 cut-off events. For 54152/54216 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 27235 event pairs, 394 based on Foata normal form. 36/2772 useless extension candidates. Maximal degree in co-relation 20672. Up to 2105 conditions per place. [2021-03-24 20:11:21,017 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 315 selfloop transitions, 102 changer transitions 35/462 dead transitions. [2021-03-24 20:11:21,018 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 462 transitions, 8629 flow [2021-03-24 20:11:21,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:21,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:21,019 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2479 transitions. [2021-03-24 20:11:21,019 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4954036770583533 [2021-03-24 20:11:21,019 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2479 transitions. [2021-03-24 20:11:21,020 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2479 transitions. [2021-03-24 20:11:21,020 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:21,020 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2479 transitions. [2021-03-24 20:11:21,021 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.72222222222223) internal successors, (2479), 18 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,023 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,023 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,023 INFO L185 Difference]: Start difference. First operand has 339 places, 426 transitions, 7219 flow. Second operand 18 states and 2479 transitions. [2021-03-24 20:11:21,023 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 462 transitions, 8629 flow [2021-03-24 20:11:21,261 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 336 places, 462 transitions, 8363 flow, removed 16 selfloop flow, removed 16 redundant places. [2021-03-24 20:11:21,267 INFO L241 Difference]: Finished difference. Result has 341 places, 412 transitions, 6935 flow [2021-03-24 20:11:21,268 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6969, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=426, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=324, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6935, PETRI_PLACES=341, PETRI_TRANSITIONS=412} [2021-03-24 20:11:21,268 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 275 predicate places. [2021-03-24 20:11:21,268 INFO L480 AbstractCegarLoop]: Abstraction has has 341 places, 412 transitions, 6935 flow [2021-03-24 20:11:21,268 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:21,268 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:21,268 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:21,269 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-24 20:11:21,269 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:21,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:21,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1627244557, now seen corresponding path program 24 times [2021-03-24 20:11:21,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:21,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233858195] [2021-03-24 20:11:21,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:21,348 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:21,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:21,349 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:21,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-03-24 20:11:21,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:21,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:21,363 INFO L142 QuantifierPusher]: treesize reduction 48, result has 40.0 percent of original size [2021-03-24 20:11:21,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:21,388 INFO L142 QuantifierPusher]: treesize reduction 45, result has 56.3 percent of original size [2021-03-24 20:11:21,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 20:11:21,445 INFO L142 QuantifierPusher]: treesize reduction 40, result has 70.1 percent of original size [2021-03-24 20:11:21,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 94 [2021-03-24 20:11:21,539 INFO L142 QuantifierPusher]: treesize reduction 14, result has 80.3 percent of original size [2021-03-24 20:11:21,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 20:11:21,568 INFO L142 QuantifierPusher]: treesize reduction 14, result has 76.7 percent of original size [2021-03-24 20:11:21,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:11:21,595 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-03-24 20:11:21,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:11:21,630 INFO L142 QuantifierPusher]: treesize reduction 22, result has 73.5 percent of original size [2021-03-24 20:11:21,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:11:21,671 INFO L142 QuantifierPusher]: treesize reduction 18, result has 81.1 percent of original size [2021-03-24 20:11:21,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 77 [2021-03-24 20:11:21,716 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:11:21,717 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:11:21,729 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:11:21,729 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:11:21,758 INFO L142 QuantifierPusher]: treesize reduction 18, result has 80.2 percent of original size [2021-03-24 20:11:21,758 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 20:11:21,801 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-03-24 20:11:21,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:11:21,834 INFO L142 QuantifierPusher]: treesize reduction 14, result has 78.8 percent of original size [2021-03-24 20:11:21,835 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:11:21,867 INFO L142 QuantifierPusher]: treesize reduction 18, result has 77.8 percent of original size [2021-03-24 20:11:21,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:11:21,906 INFO L142 QuantifierPusher]: treesize reduction 18, result has 72.7 percent of original size [2021-03-24 20:11:21,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 48 [2021-03-24 20:11:21,923 INFO L142 QuantifierPusher]: treesize reduction 39, result has 50.6 percent of original size [2021-03-24 20:11:21,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:11:21,957 INFO L142 QuantifierPusher]: treesize reduction 39, result has 50.0 percent of original size [2021-03-24 20:11:21,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:21,993 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:11:21,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:22,016 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:22,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:22,037 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:22,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:22,038 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:22,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:22,057 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:22,058 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233858195] [2021-03-24 20:11:22,058 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:22,058 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [21] imperfect sequences [] total 21 [2021-03-24 20:11:22,058 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2111039598] [2021-03-24 20:11:22,058 INFO L460 AbstractCegarLoop]: Interpolant automaton has 22 states [2021-03-24 20:11:22,058 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:22,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2021-03-24 20:11:22,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=404, Unknown=0, NotChecked=0, Total=462 [2021-03-24 20:11:22,060 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:22,061 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 341 places, 412 transitions, 6935 flow. Second operand has 22 states, 22 states have (on average 134.45454545454547) internal successors, (2958), 22 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:22,061 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:22,061 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:22,061 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:24,209 INFO L129 PetriNetUnfolder]: 733/2716 cut-off events. [2021-03-24 20:11:24,209 INFO L130 PetriNetUnfolder]: For 53146/53210 co-relation queries the response was YES. [2021-03-24 20:11:24,228 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20246 conditions, 2716 events. 733/2716 cut-off events. For 53146/53210 co-relation queries the response was YES. Maximal size of possible extension queue 257. Compared 26592 event pairs, 398 based on Foata normal form. 21/2691 useless extension candidates. Maximal degree in co-relation 20132. Up to 2301 conditions per place. [2021-03-24 20:11:24,234 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 371 selfloop transitions, 38 changer transitions 25/444 dead transitions. [2021-03-24 20:11:24,234 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 355 places, 444 transitions, 8249 flow [2021-03-24 20:11:24,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:11:24,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:11:24,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2598 transitions. [2021-03-24 20:11:24,236 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49185914426353655 [2021-03-24 20:11:24,236 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2598 transitions. [2021-03-24 20:11:24,236 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2598 transitions. [2021-03-24 20:11:24,236 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:24,236 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2598 transitions. [2021-03-24 20:11:24,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.73684210526315) internal successors, (2598), 19 states have internal predecessors, (2598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:24,239 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:24,240 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:24,240 INFO L185 Difference]: Start difference. First operand has 341 places, 412 transitions, 6935 flow. Second operand 19 states and 2598 transitions. [2021-03-24 20:11:24,240 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 355 places, 444 transitions, 8249 flow [2021-03-24 20:11:24,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 444 transitions, 7987 flow, removed 24 selfloop flow, removed 15 redundant places. [2021-03-24 20:11:24,460 INFO L241 Difference]: Finished difference. Result has 343 places, 404 transitions, 6636 flow [2021-03-24 20:11:24,461 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6682, PETRI_DIFFERENCE_MINUEND_PLACES=322, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=38, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=374, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6636, PETRI_PLACES=343, PETRI_TRANSITIONS=404} [2021-03-24 20:11:24,461 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 277 predicate places. [2021-03-24 20:11:24,461 INFO L480 AbstractCegarLoop]: Abstraction has has 343 places, 404 transitions, 6636 flow [2021-03-24 20:11:24,461 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 134.45454545454547) internal successors, (2958), 22 states have internal predecessors, (2958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:24,461 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:24,461 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:24,462 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-24 20:11:24,462 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:24,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:24,462 INFO L82 PathProgramCache]: Analyzing trace with hash 2010050097, now seen corresponding path program 25 times [2021-03-24 20:11:24,462 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:24,462 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465905360] [2021-03-24 20:11:24,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:24,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:24,536 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:24,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:24,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:24,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:24,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:24,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:24,559 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:11:24,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:24,574 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:11:24,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:24,598 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:11:24,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:24,631 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:11:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:11:24,673 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:11:24,674 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:24,674 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:24,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:24,698 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:11:24,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:11:24,722 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:24,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:24,764 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:24,765 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:24,813 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:24,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:24,847 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:11:24,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:11:24,867 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:24,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:24,895 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:24,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:24,925 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:24,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:24,955 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:24,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:24,986 INFO L142 QuantifierPusher]: treesize reduction 45, result has 44.4 percent of original size [2021-03-24 20:11:24,987 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-03-24 20:11:25,032 INFO L142 QuantifierPusher]: treesize reduction 25, result has 49.0 percent of original size [2021-03-24 20:11:25,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:11:25,061 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:11:25,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:25,092 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:25,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:25,115 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:25,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:25,117 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:25,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:25,147 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:25,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:25,179 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:25,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:25,209 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:25,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:25,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:25,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465905360] [2021-03-24 20:11:25,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:25,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:11:25,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576726888] [2021-03-24 20:11:25,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:11:25,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:25,238 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:11:25,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:11:25,240 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:25,241 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 343 places, 404 transitions, 6636 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:25,241 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:25,241 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:25,241 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:26,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 20:11:26,425 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-03-24 20:11:27,359 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 20:11:27,976 INFO L129 PetriNetUnfolder]: 768/2805 cut-off events. [2021-03-24 20:11:27,976 INFO L130 PetriNetUnfolder]: For 52391/52449 co-relation queries the response was YES. [2021-03-24 20:11:28,001 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20776 conditions, 2805 events. 768/2805 cut-off events. For 52391/52449 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 27656 event pairs, 394 based on Foata normal form. 32/2794 useless extension candidates. Maximal degree in co-relation 20663. Up to 2094 conditions per place. [2021-03-24 20:11:28,007 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 318 selfloop transitions, 119 changer transitions 22/465 dead transitions. [2021-03-24 20:11:28,007 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 465 transitions, 8641 flow [2021-03-24 20:11:28,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:28,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:28,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1627 transitions. [2021-03-24 20:11:28,009 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3251398880895284 [2021-03-24 20:11:28,009 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1627 transitions. [2021-03-24 20:11:28,009 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1627 transitions. [2021-03-24 20:11:28,009 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:28,009 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1627 transitions. [2021-03-24 20:11:28,010 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.38888888888889) internal successors, (1627), 18 states have internal predecessors, (1627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,012 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,012 INFO L185 Difference]: Start difference. First operand has 343 places, 404 transitions, 6636 flow. Second operand 18 states and 1627 transitions. [2021-03-24 20:11:28,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 465 transitions, 8641 flow [2021-03-24 20:11:28,314 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 334 places, 465 transitions, 8535 flow, removed 11 selfloop flow, removed 18 redundant places. [2021-03-24 20:11:28,323 INFO L241 Difference]: Finished difference. Result has 339 places, 420 transitions, 7222 flow [2021-03-24 20:11:28,323 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6536, PETRI_DIFFERENCE_MINUEND_PLACES=317, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=106, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=290, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7222, PETRI_PLACES=339, PETRI_TRANSITIONS=420} [2021-03-24 20:11:28,324 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 273 predicate places. [2021-03-24 20:11:28,324 INFO L480 AbstractCegarLoop]: Abstraction has has 339 places, 420 transitions, 7222 flow [2021-03-24 20:11:28,324 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:28,324 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:28,324 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:28,324 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-24 20:11:28,324 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:28,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:28,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1459554293, now seen corresponding path program 26 times [2021-03-24 20:11:28,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:28,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124511208] [2021-03-24 20:11:28,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:28,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:28,435 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:28,436 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:28,436 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:28,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:28,447 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:28,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:28,470 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:11:28,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:28,513 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:11:28,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:11:28,570 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:11:28,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:11:28,635 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:11:28,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:11:28,710 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:11:28,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:11:28,712 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:11:28,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:28,740 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:11:28,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:28,768 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:11:28,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:11:28,817 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:11:28,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:28,864 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:11:28,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:28,912 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.9 percent of original size [2021-03-24 20:11:28,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:11:28,965 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.9 percent of original size [2021-03-24 20:11:28,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:11:29,022 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:11:29,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:11:29,080 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:11:29,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:11:29,108 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:11:29,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:29,162 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:11:29,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:11:29,221 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:11:29,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:11:29,247 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:11:29,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:29,285 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:11:29,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:29,308 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:11:29,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:29,342 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:11:29,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:29,379 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:11:29,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:11:29,403 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:11:29,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:11:29,404 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:11:29,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:11:29,426 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:29,427 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124511208] [2021-03-24 20:11:29,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:29,427 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:11:29,427 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305505334] [2021-03-24 20:11:29,427 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:11:29,427 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:29,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:11:29,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:11:29,429 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:29,430 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 420 transitions, 7222 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:29,430 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:29,430 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:29,430 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:30,141 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-03-24 20:11:30,307 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 63 [2021-03-24 20:11:30,505 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-24 20:11:30,901 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-03-24 20:11:32,143 INFO L129 PetriNetUnfolder]: 757/2775 cut-off events. [2021-03-24 20:11:32,143 INFO L130 PetriNetUnfolder]: For 56562/56631 co-relation queries the response was YES. [2021-03-24 20:11:32,170 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21073 conditions, 2775 events. 757/2775 cut-off events. For 56562/56631 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 27210 event pairs, 387 based on Foata normal form. 30/2759 useless extension candidates. Maximal degree in co-relation 20960. Up to 2229 conditions per place. [2021-03-24 20:11:32,176 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 353 selfloop transitions, 79 changer transitions 26/464 dead transitions. [2021-03-24 20:11:32,176 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 353 places, 464 transitions, 8735 flow [2021-03-24 20:11:32,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:32,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:32,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1616 transitions. [2021-03-24 20:11:32,178 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3229416466826539 [2021-03-24 20:11:32,178 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1616 transitions. [2021-03-24 20:11:32,178 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1616 transitions. [2021-03-24 20:11:32,178 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:32,178 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1616 transitions. [2021-03-24 20:11:32,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.77777777777777) internal successors, (1616), 18 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,182 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,182 INFO L185 Difference]: Start difference. First operand has 339 places, 420 transitions, 7222 flow. Second operand 18 states and 1616 transitions. [2021-03-24 20:11:32,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 353 places, 464 transitions, 8735 flow [2021-03-24 20:11:32,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 340 places, 464 transitions, 8425 flow, removed 85 selfloop flow, removed 13 redundant places. [2021-03-24 20:11:32,448 INFO L241 Difference]: Finished difference. Result has 347 places, 431 transitions, 7328 flow [2021-03-24 20:11:32,449 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6914, PETRI_DIFFERENCE_MINUEND_PLACES=323, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=420, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=347, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7328, PETRI_PLACES=347, PETRI_TRANSITIONS=431} [2021-03-24 20:11:32,449 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 281 predicate places. [2021-03-24 20:11:32,449 INFO L480 AbstractCegarLoop]: Abstraction has has 347 places, 431 transitions, 7328 flow [2021-03-24 20:11:32,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:32,450 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:32,450 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:32,450 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-24 20:11:32,450 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:32,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:32,450 INFO L82 PathProgramCache]: Analyzing trace with hash -1555900269, now seen corresponding path program 27 times [2021-03-24 20:11:32,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:32,450 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1987515416] [2021-03-24 20:11:32,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:32,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:32,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:32,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:32,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:32,552 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:32,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:32,576 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:11:32,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:32,613 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:11:32,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:11:32,666 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:11:32,667 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:11:32,733 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:11:32,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:32,754 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:11:32,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:32,771 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:11:32,772 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:11:32,802 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:11:32,803 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:11:32,836 INFO L142 QuantifierPusher]: treesize reduction 24, result has 66.2 percent of original size [2021-03-24 20:11:32,836 INFO L147 QuantifierPusher]: treesize reduction 5, result has 89.4 percent of original size 42 [2021-03-24 20:11:32,872 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:11:32,873 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:11:32,907 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:11:32,908 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:11:32,943 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:11:32,943 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:11:32,957 INFO L142 QuantifierPusher]: treesize reduction 41, result has 50.6 percent of original size [2021-03-24 20:11:32,957 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size 35 [2021-03-24 20:11:32,995 INFO L142 QuantifierPusher]: treesize reduction 50, result has 36.7 percent of original size [2021-03-24 20:11:32,996 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.8 percent of original size 24 [2021-03-24 20:11:33,028 INFO L142 QuantifierPusher]: treesize reduction 50, result has 35.9 percent of original size [2021-03-24 20:11:33,029 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size 23 [2021-03-24 20:11:33,064 INFO L142 QuantifierPusher]: treesize reduction 48, result has 44.8 percent of original size [2021-03-24 20:11:33,072 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:11:33,113 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:11:33,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:33,138 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:11:33,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:33,156 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:11:33,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:33,179 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:11:33,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:33,204 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:33,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:33,227 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:11:33,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:33,228 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:33,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:33,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:33,250 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1987515416] [2021-03-24 20:11:33,250 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:33,250 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:33,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567417045] [2021-03-24 20:11:33,250 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:33,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:33,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:33,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:33,252 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:33,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 431 transitions, 7328 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:33,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:33,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:33,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:34,120 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:11:34,294 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2021-03-24 20:11:34,606 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-03-24 20:11:34,824 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:11:35,951 INFO L129 PetriNetUnfolder]: 748/2745 cut-off events. [2021-03-24 20:11:35,951 INFO L130 PetriNetUnfolder]: For 57395/57457 co-relation queries the response was YES. [2021-03-24 20:11:35,975 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21074 conditions, 2745 events. 748/2745 cut-off events. For 57395/57457 co-relation queries the response was YES. Maximal size of possible extension queue 259. Compared 26863 event pairs, 392 based on Foata normal form. 44/2743 useless extension candidates. Maximal degree in co-relation 20957. Up to 2138 conditions per place. [2021-03-24 20:11:35,981 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 328 selfloop transitions, 94 changer transitions 20/452 dead transitions. [2021-03-24 20:11:35,981 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 452 transitions, 8497 flow [2021-03-24 20:11:35,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:35,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:35,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 20:11:35,983 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 20:11:35,983 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 20:11:35,983 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 20:11:35,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:35,983 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 20:11:35,985 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.38888888888889) internal successors, (2473), 18 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,986 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,987 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:35,987 INFO L185 Difference]: Start difference. First operand has 347 places, 431 transitions, 7328 flow. Second operand 18 states and 2473 transitions. [2021-03-24 20:11:35,987 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 452 transitions, 8497 flow [2021-03-24 20:11:36,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 346 places, 452 transitions, 8283 flow, removed 25 selfloop flow, removed 12 redundant places. [2021-03-24 20:11:36,217 INFO L241 Difference]: Finished difference. Result has 349 places, 427 transitions, 7231 flow [2021-03-24 20:11:36,218 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7118, PETRI_DIFFERENCE_MINUEND_PLACES=329, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=431, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=94, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=337, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7231, PETRI_PLACES=349, PETRI_TRANSITIONS=427} [2021-03-24 20:11:36,218 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 283 predicate places. [2021-03-24 20:11:36,218 INFO L480 AbstractCegarLoop]: Abstraction has has 349 places, 427 transitions, 7231 flow [2021-03-24 20:11:36,218 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:36,218 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:36,218 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:36,218 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-24 20:11:36,218 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:36,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:36,219 INFO L82 PathProgramCache]: Analyzing trace with hash 1082319579, now seen corresponding path program 28 times [2021-03-24 20:11:36,219 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:36,219 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219894251] [2021-03-24 20:11:36,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:36,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:36,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:36,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:36,304 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:36,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:36,316 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:36,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:36,339 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:36,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:36,372 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:11:36,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:11:36,429 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:11:36,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:11:36,490 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:11:36,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:36,531 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:11:36,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:11:36,566 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:11:36,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:11:36,615 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:11:36,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:11:36,665 INFO L142 QuantifierPusher]: treesize reduction 47, result has 58.8 percent of original size [2021-03-24 20:11:36,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:11:36,725 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:11:36,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:11:36,783 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:11:36,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:11:36,798 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 20:11:36,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:36,843 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 20:11:36,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:36,887 INFO L142 QuantifierPusher]: treesize reduction 61, result has 53.4 percent of original size [2021-03-24 20:11:36,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:11:36,943 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:11:36,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:11:37,006 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:11:37,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:37,045 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:11:37,045 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:37,064 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:11:37,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:37,100 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:11:37,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:37,137 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:11:37,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:37,159 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:37,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:37,182 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:37,183 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:37,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:37,205 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:37,205 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219894251] [2021-03-24 20:11:37,205 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:37,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:37,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779253101] [2021-03-24 20:11:37,206 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:37,206 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:37,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:37,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:37,208 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:37,209 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 349 places, 427 transitions, 7231 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:37,209 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:37,209 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:37,209 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:38,039 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-03-24 20:11:38,280 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-03-24 20:11:38,498 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2021-03-24 20:11:39,810 INFO L129 PetriNetUnfolder]: 744/2735 cut-off events. [2021-03-24 20:11:39,810 INFO L130 PetriNetUnfolder]: For 58523/58577 co-relation queries the response was YES. [2021-03-24 20:11:39,841 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20859 conditions, 2735 events. 744/2735 cut-off events. For 58523/58577 co-relation queries the response was YES. Maximal size of possible extension queue 258. Compared 26753 event pairs, 391 based on Foata normal form. 35/2726 useless extension candidates. Maximal degree in co-relation 20744. Up to 2109 conditions per place. [2021-03-24 20:11:39,848 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 324 selfloop transitions, 115 changer transitions 11/460 dead transitions. [2021-03-24 20:11:39,848 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 460 transitions, 8622 flow [2021-03-24 20:11:39,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:11:39,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:11:39,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2609 transitions. [2021-03-24 20:11:39,850 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49394168875425976 [2021-03-24 20:11:39,850 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2609 transitions. [2021-03-24 20:11:39,850 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2609 transitions. [2021-03-24 20:11:39,850 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:39,850 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2609 transitions. [2021-03-24 20:11:39,851 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.31578947368422) internal successors, (2609), 19 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:39,853 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:39,854 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:39,854 INFO L185 Difference]: Start difference. First operand has 349 places, 427 transitions, 7231 flow. Second operand 19 states and 2609 transitions. [2021-03-24 20:11:39,854 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 460 transitions, 8622 flow [2021-03-24 20:11:40,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 460 transitions, 8386 flow, removed 9 selfloop flow, removed 19 redundant places. [2021-03-24 20:11:40,106 INFO L241 Difference]: Finished difference. Result has 346 places, 432 transitions, 7362 flow [2021-03-24 20:11:40,106 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6999, PETRI_DIFFERENCE_MINUEND_PLACES=324, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=108, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7362, PETRI_PLACES=346, PETRI_TRANSITIONS=432} [2021-03-24 20:11:40,107 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 280 predicate places. [2021-03-24 20:11:40,107 INFO L480 AbstractCegarLoop]: Abstraction has has 346 places, 432 transitions, 7362 flow [2021-03-24 20:11:40,107 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:40,107 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:40,107 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:40,107 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-24 20:11:40,108 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:40,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:40,108 INFO L82 PathProgramCache]: Analyzing trace with hash -2124779705, now seen corresponding path program 29 times [2021-03-24 20:11:40,108 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:40,108 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017080665] [2021-03-24 20:11:40,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:40,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:40,195 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:40,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:40,196 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:40,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:40,207 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:40,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:40,235 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:11:40,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:11:40,263 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:11:40,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:11:40,303 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:11:40,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:11:40,348 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:11:40,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:40,376 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:11:40,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:11:40,403 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:11:40,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:11:40,440 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:11:40,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:11:40,480 INFO L142 QuantifierPusher]: treesize reduction 47, result has 58.8 percent of original size [2021-03-24 20:11:40,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:11:40,527 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:11:40,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:11:40,572 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:11:40,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:11:40,618 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:11:40,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:11:40,633 INFO L142 QuantifierPusher]: treesize reduction 56, result has 57.6 percent of original size [2021-03-24 20:11:40,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:11:40,690 INFO L142 QuantifierPusher]: treesize reduction 61, result has 53.4 percent of original size [2021-03-24 20:11:40,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:11:40,748 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:11:40,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:11:40,811 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:11:40,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:40,858 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:11:40,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:40,878 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:11:40,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:40,914 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:11:40,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:40,951 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:11:40,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:11:40,973 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:40,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:40,996 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:40,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:40,997 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:40,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:41,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:41,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017080665] [2021-03-24 20:11:41,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:41,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:41,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185699056] [2021-03-24 20:11:41,020 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:41,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:41,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:41,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:41,022 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:41,023 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 346 places, 432 transitions, 7362 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:41,023 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:41,023 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:41,023 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:41,878 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-03-24 20:11:42,106 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-24 20:11:42,401 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-03-24 20:11:43,738 INFO L129 PetriNetUnfolder]: 749/2765 cut-off events. [2021-03-24 20:11:43,738 INFO L130 PetriNetUnfolder]: For 59050/59116 co-relation queries the response was YES. [2021-03-24 20:11:43,758 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21098 conditions, 2765 events. 749/2765 cut-off events. For 59050/59116 co-relation queries the response was YES. Maximal size of possible extension queue 262. Compared 27237 event pairs, 394 based on Foata normal form. 44/2766 useless extension candidates. Maximal degree in co-relation 20985. Up to 2135 conditions per place. [2021-03-24 20:11:43,764 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 331 selfloop transitions, 111 changer transitions 9/461 dead transitions. [2021-03-24 20:11:43,764 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 461 transitions, 8682 flow [2021-03-24 20:11:43,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:11:43,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:11:43,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2610 transitions. [2021-03-24 20:11:43,766 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4941310109806891 [2021-03-24 20:11:43,766 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2610 transitions. [2021-03-24 20:11:43,766 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2610 transitions. [2021-03-24 20:11:43,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:43,766 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2610 transitions. [2021-03-24 20:11:43,768 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.3684210526316) internal successors, (2610), 19 states have internal predecessors, (2610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,770 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,770 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:43,770 INFO L185 Difference]: Start difference. First operand has 346 places, 432 transitions, 7362 flow. Second operand 19 states and 2610 transitions. [2021-03-24 20:11:43,770 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 461 transitions, 8682 flow [2021-03-24 20:11:43,994 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 349 places, 461 transitions, 8413 flow, removed 35 selfloop flow, removed 13 redundant places. [2021-03-24 20:11:44,001 INFO L241 Difference]: Finished difference. Result has 354 places, 440 transitions, 7517 flow [2021-03-24 20:11:44,001 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7097, PETRI_DIFFERENCE_MINUEND_PLACES=331, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=432, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=102, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7517, PETRI_PLACES=354, PETRI_TRANSITIONS=440} [2021-03-24 20:11:44,002 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 288 predicate places. [2021-03-24 20:11:44,002 INFO L480 AbstractCegarLoop]: Abstraction has has 354 places, 440 transitions, 7517 flow [2021-03-24 20:11:44,002 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:44,002 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:44,002 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:44,002 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-24 20:11:44,002 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:44,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:44,003 INFO L82 PathProgramCache]: Analyzing trace with hash 1973699369, now seen corresponding path program 30 times [2021-03-24 20:11:44,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:44,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [801112534] [2021-03-24 20:11:44,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:44,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:44,083 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:44,084 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:44,084 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:44,094 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:44,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:44,114 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:11:44,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:44,140 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:11:44,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:44,176 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:11:44,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:11:44,221 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:44,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:44,239 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:44,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:44,256 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:44,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:44,287 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:44,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:44,317 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:44,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:44,348 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:11:44,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:44,380 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 20:11:44,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:11:44,412 INFO L142 QuantifierPusher]: treesize reduction 35, result has 60.7 percent of original size [2021-03-24 20:11:44,413 INFO L147 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size 38 [2021-03-24 20:11:44,457 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:11:44,457 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:11:44,502 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:11:44,503 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:11:44,520 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:11:44,521 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:11:44,564 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:11:44,565 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:11:44,613 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:11:44,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:44,639 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:44,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:44,659 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:44,659 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:44,660 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:44,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:44,684 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:44,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:44,711 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:44,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:44,735 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:44,735 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:44,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:44,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [801112534] [2021-03-24 20:11:44,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:44,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:44,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125910942] [2021-03-24 20:11:44,759 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:44,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:44,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:44,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:44,761 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:44,762 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 440 transitions, 7517 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:44,762 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:44,762 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:44,762 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:45,683 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-03-24 20:11:45,931 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:11:46,172 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2021-03-24 20:11:46,479 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:11:47,564 INFO L129 PetriNetUnfolder]: 758/2788 cut-off events. [2021-03-24 20:11:47,564 INFO L130 PetriNetUnfolder]: For 63139/63193 co-relation queries the response was YES. [2021-03-24 20:11:47,594 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21510 conditions, 2788 events. 758/2788 cut-off events. For 63139/63193 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 27455 event pairs, 398 based on Foata normal form. 18/2763 useless extension candidates. Maximal degree in co-relation 21393. Up to 2249 conditions per place. [2021-03-24 20:11:47,600 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 352 selfloop transitions, 71 changer transitions 31/464 dead transitions. [2021-03-24 20:11:47,600 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 464 transitions, 8722 flow [2021-03-24 20:11:47,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:47,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 20:11:47,602 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 20:11:47,603 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 20:11:47,603 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 20:11:47,603 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:47,603 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 20:11:47,604 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.38888888888889) internal successors, (2473), 18 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:47,606 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:47,606 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:47,606 INFO L185 Difference]: Start difference. First operand has 354 places, 440 transitions, 7517 flow. Second operand 18 states and 2473 transitions. [2021-03-24 20:11:47,606 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 464 transitions, 8722 flow [2021-03-24 20:11:47,866 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 464 transitions, 8447 flow, removed 40 selfloop flow, removed 13 redundant places. [2021-03-24 20:11:47,873 INFO L241 Difference]: Finished difference. Result has 360 places, 427 transitions, 7181 flow [2021-03-24 20:11:47,873 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7244, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=440, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=369, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7181, PETRI_PLACES=360, PETRI_TRANSITIONS=427} [2021-03-24 20:11:47,873 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 294 predicate places. [2021-03-24 20:11:47,873 INFO L480 AbstractCegarLoop]: Abstraction has has 360 places, 427 transitions, 7181 flow [2021-03-24 20:11:47,874 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:47,874 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:47,874 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:47,874 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-24 20:11:47,874 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:47,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:47,874 INFO L82 PathProgramCache]: Analyzing trace with hash -1572396527, now seen corresponding path program 31 times [2021-03-24 20:11:47,875 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:47,875 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1023202415] [2021-03-24 20:11:47,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:47,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:47,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:47,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:47,949 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:47,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:47,960 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:47,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:47,980 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:11:47,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:48,001 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:11:48,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:48,064 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:11:48,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:11:48,111 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:48,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:48,128 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:48,128 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:48,145 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:48,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:48,176 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:48,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:48,210 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 20:11:48,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:11:48,247 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:11:48,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:48,284 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:11:48,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:48,319 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:11:48,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:48,333 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:11:48,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:11:48,365 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:11:48,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:48,389 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:11:48,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:11:48,415 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:11:48,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:11:48,438 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:11:48,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:48,461 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:48,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:48,480 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:48,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:48,480 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:48,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:48,503 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:48,504 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:48,529 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:48,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:48,551 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:48,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:48,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:48,574 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1023202415] [2021-03-24 20:11:48,574 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:48,574 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:48,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424742592] [2021-03-24 20:11:48,574 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:48,574 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:48,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:48,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:48,576 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:48,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 427 transitions, 7181 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:48,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:48,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:48,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:49,114 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:11:49,288 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 58 [2021-03-24 20:11:49,508 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:11:49,738 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:11:49,982 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-03-24 20:11:51,231 INFO L129 PetriNetUnfolder]: 752/2769 cut-off events. [2021-03-24 20:11:51,231 INFO L130 PetriNetUnfolder]: For 65543/65595 co-relation queries the response was YES. [2021-03-24 20:11:51,263 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21534 conditions, 2769 events. 752/2769 cut-off events. For 65543/65595 co-relation queries the response was YES. Maximal size of possible extension queue 269. Compared 27220 event pairs, 403 based on Foata normal form. 27/2754 useless extension candidates. Maximal degree in co-relation 21414. Up to 2134 conditions per place. [2021-03-24 20:11:51,270 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 343 selfloop transitions, 89 changer transitions 24/466 dead transitions. [2021-03-24 20:11:51,270 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 371 places, 466 transitions, 8680 flow [2021-03-24 20:11:51,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:51,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:51,271 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2479 transitions. [2021-03-24 20:11:51,272 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4954036770583533 [2021-03-24 20:11:51,272 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2479 transitions. [2021-03-24 20:11:51,272 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2479 transitions. [2021-03-24 20:11:51,273 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:51,273 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2479 transitions. [2021-03-24 20:11:51,274 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.72222222222223) internal successors, (2479), 18 states have internal predecessors, (2479), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:51,276 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:51,276 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:51,276 INFO L185 Difference]: Start difference. First operand has 360 places, 427 transitions, 7181 flow. Second operand 18 states and 2479 transitions. [2021-03-24 20:11:51,277 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 371 places, 466 transitions, 8680 flow [2021-03-24 20:11:51,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 466 transitions, 8508 flow, removed 13 selfloop flow, removed 15 redundant places. [2021-03-24 20:11:51,659 INFO L241 Difference]: Finished difference. Result has 361 places, 429 transitions, 7282 flow [2021-03-24 20:11:51,660 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7015, PETRI_DIFFERENCE_MINUEND_PLACES=339, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=427, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=338, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=7282, PETRI_PLACES=361, PETRI_TRANSITIONS=429} [2021-03-24 20:11:51,660 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 295 predicate places. [2021-03-24 20:11:51,660 INFO L480 AbstractCegarLoop]: Abstraction has has 361 places, 429 transitions, 7282 flow [2021-03-24 20:11:51,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:51,661 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:51,661 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:51,661 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-24 20:11:51,661 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:51,661 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:51,661 INFO L82 PathProgramCache]: Analyzing trace with hash -425101829, now seen corresponding path program 32 times [2021-03-24 20:11:51,661 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:51,661 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155203721] [2021-03-24 20:11:51,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:51,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:51,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:51,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:51,737 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:51,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 10 [2021-03-24 20:11:51,742 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:51,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:51,754 INFO L142 QuantifierPusher]: treesize reduction 28, result has 40.4 percent of original size [2021-03-24 20:11:51,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-03-24 20:11:51,765 INFO L142 QuantifierPusher]: treesize reduction 28, result has 53.3 percent of original size [2021-03-24 20:11:51,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:51,783 INFO L142 QuantifierPusher]: treesize reduction 28, result has 63.6 percent of original size [2021-03-24 20:11:51,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:11:51,805 INFO L142 QuantifierPusher]: treesize reduction 28, result has 69.2 percent of original size [2021-03-24 20:11:51,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:11:51,839 INFO L142 QuantifierPusher]: treesize reduction 28, result has 63.6 percent of original size [2021-03-24 20:11:51,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:11:51,840 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:51,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:51,857 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:11:51,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:11:51,875 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 20:11:51,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:51,894 INFO L142 QuantifierPusher]: treesize reduction 22, result has 59.3 percent of original size [2021-03-24 20:11:51,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:11:51,915 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:11:51,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:51,940 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:11:51,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:51,954 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:51,954 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:51,975 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:11:51,975 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:51,998 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 20:11:51,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:52,045 INFO L142 QuantifierPusher]: treesize reduction 47, result has 41.3 percent of original size [2021-03-24 20:11:52,046 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 20:11:52,082 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:11:52,083 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:11:52,126 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:11:52,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:52,149 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:52,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:52,167 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:52,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:52,168 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:52,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:52,192 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:52,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:52,217 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:52,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:52,240 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:52,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:52,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:52,262 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155203721] [2021-03-24 20:11:52,262 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:52,262 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:52,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232846837] [2021-03-24 20:11:52,262 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:52,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:52,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:52,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=446, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:52,264 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:52,264 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 429 transitions, 7282 flow. Second operand has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:52,264 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:52,264 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:52,265 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:54,708 INFO L129 PetriNetUnfolder]: 746/2760 cut-off events. [2021-03-24 20:11:54,708 INFO L130 PetriNetUnfolder]: For 65882/65937 co-relation queries the response was YES. [2021-03-24 20:11:54,732 INFO L84 FinitePrefix]: Finished finitePrefix Result has 21486 conditions, 2760 events. 746/2760 cut-off events. For 65882/65937 co-relation queries the response was YES. Maximal size of possible extension queue 270. Compared 27164 event pairs, 403 based on Foata normal form. 15/2734 useless extension candidates. Maximal degree in co-relation 21365. Up to 2348 conditions per place. [2021-03-24 20:11:54,738 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 390 selfloop transitions, 30 changer transitions 25/451 dead transitions. [2021-03-24 20:11:54,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 451 transitions, 8448 flow [2021-03-24 20:11:54,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:11:54,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:11:54,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1681 transitions. [2021-03-24 20:11:54,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3182506626277925 [2021-03-24 20:11:54,740 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1681 transitions. [2021-03-24 20:11:54,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1681 transitions. [2021-03-24 20:11:54,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:54,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1681 transitions. [2021-03-24 20:11:54,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 88.47368421052632) internal successors, (1681), 19 states have internal predecessors, (1681), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:54,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:54,745 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:54,745 INFO L185 Difference]: Start difference. First operand has 361 places, 429 transitions, 7282 flow. Second operand 19 states and 1681 transitions. [2021-03-24 20:11:54,745 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 451 transitions, 8448 flow [2021-03-24 20:11:55,014 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 361 places, 451 transitions, 8206 flow, removed 21 selfloop flow, removed 14 redundant places. [2021-03-24 20:11:55,021 INFO L241 Difference]: Finished difference. Result has 367 places, 425 transitions, 7030 flow [2021-03-24 20:11:55,021 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=7047, PETRI_DIFFERENCE_MINUEND_PLACES=343, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=429, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=399, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=7030, PETRI_PLACES=367, PETRI_TRANSITIONS=425} [2021-03-24 20:11:55,021 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 301 predicate places. [2021-03-24 20:11:55,021 INFO L480 AbstractCegarLoop]: Abstraction has has 367 places, 425 transitions, 7030 flow [2021-03-24 20:11:55,021 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:55,021 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:55,021 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:55,022 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-24 20:11:55,022 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:55,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:55,022 INFO L82 PathProgramCache]: Analyzing trace with hash 634022565, now seen corresponding path program 33 times [2021-03-24 20:11:55,022 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:55,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552247848] [2021-03-24 20:11:55,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:55,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:55,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:55,085 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:55,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:55,095 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:55,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:55,116 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:11:55,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:55,137 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:11:55,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:11:55,175 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:11:55,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:11:55,220 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:11:55,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:11:55,237 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:11:55,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:55,255 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:55,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:55,288 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:11:55,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:11:55,322 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 20:11:55,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:11:55,359 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:11:55,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:55,395 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:11:55,395 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:55,408 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:11:55,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:11:55,440 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:11:55,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:11:55,474 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:11:55,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:55,498 INFO L142 QuantifierPusher]: treesize reduction 52, result has 34.2 percent of original size [2021-03-24 20:11:55,499 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:55,535 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:11:55,535 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:11:55,574 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:11:55,575 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:55,599 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:11:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:55,618 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:55,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:55,619 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:11:55,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:55,644 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:11:55,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:11:55,670 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:11:55,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:11:55,695 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:11:55,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:11:55,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:55,718 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552247848] [2021-03-24 20:11:55,718 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:55,718 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:11:55,718 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267623528] [2021-03-24 20:11:55,719 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:11:55,719 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:55,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:11:55,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:11:55,721 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:11:55,722 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 425 transitions, 7030 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:55,722 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:55,722 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:11:55,722 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:11:56,742 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-03-24 20:11:56,985 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 67 [2021-03-24 20:11:57,172 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 71 [2021-03-24 20:11:58,210 INFO L129 PetriNetUnfolder]: 731/2713 cut-off events. [2021-03-24 20:11:58,210 INFO L130 PetriNetUnfolder]: For 63251/63302 co-relation queries the response was YES. [2021-03-24 20:11:58,241 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20882 conditions, 2713 events. 731/2713 cut-off events. For 63251/63302 co-relation queries the response was YES. Maximal size of possible extension queue 260. Compared 26620 event pairs, 402 based on Foata normal form. 27/2702 useless extension candidates. Maximal degree in co-relation 20758. Up to 2107 conditions per place. [2021-03-24 20:11:58,247 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 323 selfloop transitions, 91 changer transitions 23/447 dead transitions. [2021-03-24 20:11:58,247 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 447 transitions, 8180 flow [2021-03-24 20:11:58,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:11:58,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:11:58,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 20:11:58,249 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 20:11:58,249 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 20:11:58,249 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 20:11:58,250 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:11:58,250 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 20:11:58,251 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.22222222222223) internal successors, (2470), 18 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:58,253 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:58,253 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:58,253 INFO L185 Difference]: Start difference. First operand has 367 places, 425 transitions, 7030 flow. Second operand 18 states and 2470 transitions. [2021-03-24 20:11:58,253 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 447 transitions, 8180 flow [2021-03-24 20:11:58,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 447 transitions, 8102 flow, removed 9 selfloop flow, removed 15 redundant places. [2021-03-24 20:11:58,536 INFO L241 Difference]: Finished difference. Result has 365 places, 415 transitions, 6946 flow [2021-03-24 20:11:58,537 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6958, PETRI_DIFFERENCE_MINUEND_PLACES=346, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=425, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=334, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6946, PETRI_PLACES=365, PETRI_TRANSITIONS=415} [2021-03-24 20:11:58,537 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 299 predicate places. [2021-03-24 20:11:58,537 INFO L480 AbstractCegarLoop]: Abstraction has has 365 places, 415 transitions, 6946 flow [2021-03-24 20:11:58,537 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:58,537 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:11:58,537 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:11:58,537 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-24 20:11:58,538 INFO L428 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:11:58,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:11:58,538 INFO L82 PathProgramCache]: Analyzing trace with hash -547614985, now seen corresponding path program 34 times [2021-03-24 20:11:58,538 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:11:58,538 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [813267247] [2021-03-24 20:11:58,538 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:11:58,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:11:58,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:58,622 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:11:58,622 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:11:58,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:11:58,633 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:11:58,634 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:11:58,656 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:11:58,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:11:58,698 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:11:58,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:11:58,755 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:11:58,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:11:58,818 INFO L142 QuantifierPusher]: treesize reduction 17, result has 74.6 percent of original size [2021-03-24 20:11:58,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:11:58,849 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:11:58,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:58,875 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:11:58,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:11:58,900 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:11:58,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:11:58,947 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:11:58,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:58,992 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:11:58,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:11:59,037 INFO L142 QuantifierPusher]: treesize reduction 43, result has 55.7 percent of original size [2021-03-24 20:11:59,038 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 20:11:59,099 INFO L142 QuantifierPusher]: treesize reduction 43, result has 55.7 percent of original size [2021-03-24 20:11:59,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 20:11:59,162 INFO L142 QuantifierPusher]: treesize reduction 43, result has 55.2 percent of original size [2021-03-24 20:11:59,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:11:59,228 INFO L142 QuantifierPusher]: treesize reduction 77, result has 48.0 percent of original size [2021-03-24 20:11:59,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:11:59,280 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 20:11:59,280 INFO L147 QuantifierPusher]: treesize reduction 5, result has 93.0 percent of original size 66 [2021-03-24 20:11:59,303 INFO L142 QuantifierPusher]: treesize reduction 82, result has 42.3 percent of original size [2021-03-24 20:11:59,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 20:11:59,349 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.4 percent of original size [2021-03-24 20:11:59,349 INFO L147 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size 71 [2021-03-24 20:11:59,411 INFO L142 QuantifierPusher]: treesize reduction 34, result has 53.4 percent of original size [2021-03-24 20:11:59,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:11:59,449 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:11:59,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:59,471 INFO L142 QuantifierPusher]: treesize reduction 44, result has 38.9 percent of original size [2021-03-24 20:11:59,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:11:59,504 INFO L142 QuantifierPusher]: treesize reduction 32, result has 51.5 percent of original size [2021-03-24 20:11:59,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:11:59,541 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:11:59,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:11:59,564 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:11:59,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:11:59,565 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:11:59,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:11:59,586 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:11:59,586 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [813267247] [2021-03-24 20:11:59,586 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:11:59,586 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:11:59,586 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1209414650] [2021-03-24 20:11:59,587 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:11:59,587 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:11:59,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:11:59,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:11:59,589 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:11:59,589 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 365 places, 415 transitions, 6946 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:11:59,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:11:59,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:11:59,590 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:00,289 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:12:00,471 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-03-24 20:12:00,696 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-03-24 20:12:01,017 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2021-03-24 20:12:01,308 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2021-03-24 20:12:02,454 INFO L129 PetriNetUnfolder]: 716/2650 cut-off events. [2021-03-24 20:12:02,454 INFO L130 PetriNetUnfolder]: For 62675/62725 co-relation queries the response was YES. [2021-03-24 20:12:02,475 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20659 conditions, 2650 events. 716/2650 cut-off events. For 62675/62725 co-relation queries the response was YES. Maximal size of possible extension queue 254. Compared 25866 event pairs, 381 based on Foata normal form. 25/2635 useless extension candidates. Maximal degree in co-relation 20537. Up to 2133 conditions per place. [2021-03-24 20:12:02,481 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 337 selfloop transitions, 76 changer transitions 26/445 dead transitions. [2021-03-24 20:12:02,481 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 445 transitions, 8246 flow [2021-03-24 20:12:02,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:02,482 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:02,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1616 transitions. [2021-03-24 20:12:02,483 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3229416466826539 [2021-03-24 20:12:02,483 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1616 transitions. [2021-03-24 20:12:02,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1616 transitions. [2021-03-24 20:12:02,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:02,483 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1616 transitions. [2021-03-24 20:12:02,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.77777777777777) internal successors, (1616), 18 states have internal predecessors, (1616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:02,486 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:02,486 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:02,486 INFO L185 Difference]: Start difference. First operand has 365 places, 415 transitions, 6946 flow. Second operand 18 states and 1616 transitions. [2021-03-24 20:12:02,486 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 445 transitions, 8246 flow [2021-03-24 20:12:02,720 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 445 transitions, 8014 flow, removed 15 selfloop flow, removed 17 redundant places. [2021-03-24 20:12:02,727 INFO L241 Difference]: Finished difference. Result has 362 places, 412 transitions, 6826 flow [2021-03-24 20:12:02,727 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6728, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=415, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=76, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=339, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6826, PETRI_PLACES=362, PETRI_TRANSITIONS=412} [2021-03-24 20:12:02,727 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 296 predicate places. [2021-03-24 20:12:02,727 INFO L480 AbstractCegarLoop]: Abstraction has has 362 places, 412 transitions, 6826 flow [2021-03-24 20:12:02,727 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:02,727 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:02,727 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:02,727 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-03-24 20:12:02,728 INFO L428 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:02,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:02,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1030016029, now seen corresponding path program 35 times [2021-03-24 20:12:02,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:02,728 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927854357] [2021-03-24 20:12:02,728 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:02,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:02,801 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:02,802 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:02,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:02,813 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:02,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:02,834 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:12:02,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:02,860 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:12:02,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:12:02,900 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:12:02,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:02,947 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:12:02,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:12:03,001 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:12:03,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:03,002 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:12:03,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:03,021 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:12:03,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:03,040 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:03,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:03,061 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:03,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:03,084 INFO L142 QuantifierPusher]: treesize reduction 27, result has 60.9 percent of original size [2021-03-24 20:12:03,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:12:03,109 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:03,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:03,134 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:03,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:03,159 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 20:12:03,159 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 20:12:03,201 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 20:12:03,201 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 20:12:03,217 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 20:12:03,218 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:12:03,257 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 20:12:03,257 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 20:12:03,314 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:12:03,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:12:03,339 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:12:03,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:12:03,356 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:12:03,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:12:03,379 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:03,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:03,404 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:03,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:03,430 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:03,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:03,454 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:03,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:03,455 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:03,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:03,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:03,478 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [927854357] [2021-03-24 20:12:03,478 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:03,478 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:03,478 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [482920224] [2021-03-24 20:12:03,478 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:03,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:03,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:03,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:03,480 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:03,481 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 362 places, 412 transitions, 6826 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:03,481 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:03,481 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:03,481 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:04,305 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:12:04,469 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:12:04,774 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:12:06,188 INFO L129 PetriNetUnfolder]: 701/2603 cut-off events. [2021-03-24 20:12:06,188 INFO L130 PetriNetUnfolder]: For 60869/60922 co-relation queries the response was YES. [2021-03-24 20:12:06,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20184 conditions, 2603 events. 701/2603 cut-off events. For 60869/60922 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 25305 event pairs, 380 based on Foata normal form. 35/2598 useless extension candidates. Maximal degree in co-relation 20062. Up to 2016 conditions per place. [2021-03-24 20:12:06,222 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 309 selfloop transitions, 98 changer transitions 20/433 dead transitions. [2021-03-24 20:12:06,222 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 375 places, 433 transitions, 7891 flow [2021-03-24 20:12:06,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:12:06,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:12:06,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1791 transitions. [2021-03-24 20:12:06,224 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32212230215827337 [2021-03-24 20:12:06,224 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1791 transitions. [2021-03-24 20:12:06,224 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1791 transitions. [2021-03-24 20:12:06,224 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:06,224 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1791 transitions. [2021-03-24 20:12:06,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.55) internal successors, (1791), 20 states have internal predecessors, (1791), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:06,227 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:06,227 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:06,227 INFO L185 Difference]: Start difference. First operand has 362 places, 412 transitions, 6826 flow. Second operand 20 states and 1791 transitions. [2021-03-24 20:12:06,227 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 375 places, 433 transitions, 7891 flow [2021-03-24 20:12:06,461 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 360 places, 433 transitions, 7749 flow, removed 6 selfloop flow, removed 15 redundant places. [2021-03-24 20:12:06,467 INFO L241 Difference]: Finished difference. Result has 361 places, 402 transitions, 6698 flow [2021-03-24 20:12:06,467 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6686, PETRI_DIFFERENCE_MINUEND_PLACES=341, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=412, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=98, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=314, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=6698, PETRI_PLACES=361, PETRI_TRANSITIONS=402} [2021-03-24 20:12:06,468 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 295 predicate places. [2021-03-24 20:12:06,468 INFO L480 AbstractCegarLoop]: Abstraction has has 361 places, 402 transitions, 6698 flow [2021-03-24 20:12:06,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:06,468 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:06,468 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:06,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-03-24 20:12:06,468 INFO L428 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:06,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:06,468 INFO L82 PathProgramCache]: Analyzing trace with hash 1434288937, now seen corresponding path program 36 times [2021-03-24 20:12:06,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:06,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1059498469] [2021-03-24 20:12:06,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:06,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:06,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:06,537 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:06,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:06,544 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:06,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:06,559 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:12:06,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:06,573 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:12:06,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:06,595 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:12:06,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:06,628 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:12:06,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:12:06,673 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:12:06,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:06,674 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:12:06,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:06,699 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:12:06,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:12:06,724 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:12:06,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:06,766 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:12:06,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:06,811 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:12:06,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:12:06,846 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:12:06,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:12:06,867 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:12:06,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:06,895 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:12:06,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:06,924 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:12:06,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:06,954 INFO L142 QuantifierPusher]: treesize reduction 43, result has 46.3 percent of original size [2021-03-24 20:12:06,955 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:12:06,998 INFO L142 QuantifierPusher]: treesize reduction 45, result has 44.4 percent of original size [2021-03-24 20:12:06,999 INFO L147 QuantifierPusher]: treesize reduction 6, result has 83.3 percent of original size 30 [2021-03-24 20:12:07,034 INFO L142 QuantifierPusher]: treesize reduction 25, result has 49.0 percent of original size [2021-03-24 20:12:07,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:12:07,058 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:12:07,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:07,082 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:12:07,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:07,100 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:07,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:07,101 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:07,101 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:07,125 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:07,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:07,151 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:07,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:07,174 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:07,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:07,197 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1059498469] [2021-03-24 20:12:07,197 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:07,197 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:07,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1335648690] [2021-03-24 20:12:07,197 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:07,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:07,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:07,197 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:07,199 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:07,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 361 places, 402 transitions, 6698 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:07,200 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:07,200 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:07,200 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:08,029 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 20:12:08,291 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-03-24 20:12:08,511 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 70 [2021-03-24 20:12:09,767 INFO L129 PetriNetUnfolder]: 708/2628 cut-off events. [2021-03-24 20:12:09,767 INFO L130 PetriNetUnfolder]: For 59807/59852 co-relation queries the response was YES. [2021-03-24 20:12:09,796 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20262 conditions, 2628 events. 708/2628 cut-off events. For 59807/59852 co-relation queries the response was YES. Maximal size of possible extension queue 256. Compared 25629 event pairs, 374 based on Foata normal form. 25/2614 useless extension candidates. Maximal degree in co-relation 20144. Up to 2006 conditions per place. [2021-03-24 20:12:09,802 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 315 selfloop transitions, 95 changer transitions 21/437 dead transitions. [2021-03-24 20:12:09,802 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 374 places, 437 transitions, 8130 flow [2021-03-24 20:12:09,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:09,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:09,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1620 transitions. [2021-03-24 20:12:09,804 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3237410071942446 [2021-03-24 20:12:09,804 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1620 transitions. [2021-03-24 20:12:09,804 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1620 transitions. [2021-03-24 20:12:09,804 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:09,804 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1620 transitions. [2021-03-24 20:12:09,806 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.0) internal successors, (1620), 18 states have internal predecessors, (1620), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:09,808 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:09,809 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:09,809 INFO L185 Difference]: Start difference. First operand has 361 places, 402 transitions, 6698 flow. Second operand 18 states and 1620 transitions. [2021-03-24 20:12:09,809 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 374 places, 437 transitions, 8130 flow [2021-03-24 20:12:10,093 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 354 places, 437 transitions, 7873 flow, removed 25 selfloop flow, removed 20 redundant places. [2021-03-24 20:12:10,099 INFO L241 Difference]: Finished difference. Result has 358 places, 404 transitions, 6747 flow [2021-03-24 20:12:10,099 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6463, PETRI_DIFFERENCE_MINUEND_PLACES=337, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=402, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=92, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=307, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6747, PETRI_PLACES=358, PETRI_TRANSITIONS=404} [2021-03-24 20:12:10,099 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 292 predicate places. [2021-03-24 20:12:10,099 INFO L480 AbstractCegarLoop]: Abstraction has has 358 places, 404 transitions, 6747 flow [2021-03-24 20:12:10,099 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:10,099 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:10,099 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:10,100 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-03-24 20:12:10,100 INFO L428 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:10,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:10,100 INFO L82 PathProgramCache]: Analyzing trace with hash 1905284715, now seen corresponding path program 37 times [2021-03-24 20:12:10,100 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:10,100 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [323975830] [2021-03-24 20:12:10,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:10,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:10,165 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:10,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:10,166 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:10,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:10,173 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:10,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:10,188 INFO L142 QuantifierPusher]: treesize reduction 30, result has 43.4 percent of original size [2021-03-24 20:12:10,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:10,203 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 20:12:10,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:10,225 INFO L142 QuantifierPusher]: treesize reduction 30, result has 68.8 percent of original size [2021-03-24 20:12:10,226 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-03-24 20:12:10,281 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.1 percent of original size [2021-03-24 20:12:10,281 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:10,305 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 20:12:10,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:10,328 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 20:12:10,329 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:12:10,370 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:12:10,371 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:12:10,410 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:12:10,410 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:12:10,455 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 20:12:10,455 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:12:10,502 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 20:12:10,502 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:12:10,552 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:10,552 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:12:10,585 INFO L142 QuantifierPusher]: treesize reduction 21, result has 61.1 percent of original size [2021-03-24 20:12:10,586 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:12:10,631 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 20:12:10,631 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:12:10,677 INFO L142 QuantifierPusher]: treesize reduction 43, result has 44.9 percent of original size [2021-03-24 20:12:10,678 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size 28 [2021-03-24 20:12:10,729 INFO L142 QuantifierPusher]: treesize reduction 48, result has 44.8 percent of original size [2021-03-24 20:12:10,730 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:12:10,769 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:12:10,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:10,803 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:12:10,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:10,823 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:12:10,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:10,842 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:12:10,842 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:10,867 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:12:10,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:10,894 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:12:10,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:10,919 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:10,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:10,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:10,943 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [323975830] [2021-03-24 20:12:10,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:10,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:10,944 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1752469511] [2021-03-24 20:12:10,944 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:10,944 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:10,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:10,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:10,946 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:12:10,946 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 404 transitions, 6747 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:10,947 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:10,947 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:12:10,947 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:11,792 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 20:12:12,037 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 66 [2021-03-24 20:12:12,301 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 69 [2021-03-24 20:12:12,504 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2021-03-24 20:12:13,627 INFO L129 PetriNetUnfolder]: 689/2575 cut-off events. [2021-03-24 20:12:13,627 INFO L130 PetriNetUnfolder]: For 57748/57793 co-relation queries the response was YES. [2021-03-24 20:12:13,647 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19698 conditions, 2575 events. 689/2575 cut-off events. For 57748/57793 co-relation queries the response was YES. Maximal size of possible extension queue 252. Compared 25058 event pairs, 373 based on Foata normal form. 25/2562 useless extension candidates. Maximal degree in co-relation 19580. Up to 2004 conditions per place. [2021-03-24 20:12:13,652 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 314 selfloop transitions, 81 changer transitions 20/425 dead transitions. [2021-03-24 20:12:13,652 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 372 places, 425 transitions, 7881 flow [2021-03-24 20:12:13,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:13,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:13,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2471 transitions. [2021-03-24 20:12:13,654 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4938049560351719 [2021-03-24 20:12:13,654 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2471 transitions. [2021-03-24 20:12:13,654 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2471 transitions. [2021-03-24 20:12:13,654 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:13,654 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2471 transitions. [2021-03-24 20:12:13,656 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.27777777777777) internal successors, (2471), 18 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:13,657 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:13,658 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:13,658 INFO L185 Difference]: Start difference. First operand has 358 places, 404 transitions, 6747 flow. Second operand 18 states and 2471 transitions. [2021-03-24 20:12:13,658 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 372 places, 425 transitions, 7881 flow [2021-03-24 20:12:13,861 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 357 places, 425 transitions, 7560 flow, removed 41 selfloop flow, removed 15 redundant places. [2021-03-24 20:12:13,867 INFO L241 Difference]: Finished difference. Result has 360 places, 400 transitions, 6542 flow [2021-03-24 20:12:13,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6446, PETRI_DIFFERENCE_MINUEND_PLACES=340, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=404, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=81, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=323, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6542, PETRI_PLACES=360, PETRI_TRANSITIONS=400} [2021-03-24 20:12:13,867 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 294 predicate places. [2021-03-24 20:12:13,867 INFO L480 AbstractCegarLoop]: Abstraction has has 360 places, 400 transitions, 6542 flow [2021-03-24 20:12:13,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:13,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:13,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:13,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-03-24 20:12:13,868 INFO L428 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:13,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:13,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1526216775, now seen corresponding path program 38 times [2021-03-24 20:12:13,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:13,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [883241385] [2021-03-24 20:12:13,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:13,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:13,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:13,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:13,933 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:13,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:13,944 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:13,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:13,967 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:12:13,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:13,995 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:12:13,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:12:14,038 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:12:14,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:14,086 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:12:14,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:12:14,142 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:12:14,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:14,143 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:12:14,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:14,162 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:12:14,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:14,182 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:14,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:14,204 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:14,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:14,228 INFO L142 QuantifierPusher]: treesize reduction 27, result has 60.9 percent of original size [2021-03-24 20:12:14,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:12:14,254 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:14,254 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:14,279 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:12:14,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:14,293 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:12:14,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:14,316 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:12:14,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:14,341 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 20:12:14,341 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:12:14,381 INFO L142 QuantifierPusher]: treesize reduction 42, result has 49.4 percent of original size [2021-03-24 20:12:14,382 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.4 percent of original size 35 [2021-03-24 20:12:14,420 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:12:14,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:12:14,446 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:12:14,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:12:14,464 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:12:14,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:12:14,488 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:14,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:14,513 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:14,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:14,540 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:14,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:14,565 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:14,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:14,566 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:14,566 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:14,589 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:14,589 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [883241385] [2021-03-24 20:12:14,589 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:14,589 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:14,589 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [231340471] [2021-03-24 20:12:14,590 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:14,590 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:14,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:14,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:14,592 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:14,593 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 360 places, 400 transitions, 6542 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:14,593 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:14,593 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:14,593 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:15,652 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-03-24 20:12:15,850 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 68 [2021-03-24 20:12:17,044 INFO L129 PetriNetUnfolder]: 675/2530 cut-off events. [2021-03-24 20:12:17,045 INFO L130 PetriNetUnfolder]: For 57846/57891 co-relation queries the response was YES. [2021-03-24 20:12:17,072 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19392 conditions, 2530 events. 675/2530 cut-off events. For 57846/57891 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 24519 event pairs, 376 based on Foata normal form. 30/2523 useless extension candidates. Maximal degree in co-relation 19273. Up to 1974 conditions per place. [2021-03-24 20:12:17,078 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 306 selfloop transitions, 85 changer transitions 23/420 dead transitions. [2021-03-24 20:12:17,078 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 369 places, 420 transitions, 7613 flow [2021-03-24 20:12:17,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:17,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:17,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1610 transitions. [2021-03-24 20:12:17,080 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32174260591526777 [2021-03-24 20:12:17,080 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1610 transitions. [2021-03-24 20:12:17,080 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1610 transitions. [2021-03-24 20:12:17,080 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:17,080 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1610 transitions. [2021-03-24 20:12:17,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.44444444444444) internal successors, (1610), 18 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:17,083 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:17,083 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:17,083 INFO L185 Difference]: Start difference. First operand has 360 places, 400 transitions, 6542 flow. Second operand 18 states and 1610 transitions. [2021-03-24 20:12:17,083 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 369 places, 420 transitions, 7613 flow [2021-03-24 20:12:17,313 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 353 places, 420 transitions, 7432 flow, removed 5 selfloop flow, removed 16 redundant places. [2021-03-24 20:12:17,319 INFO L241 Difference]: Finished difference. Result has 354 places, 388 transitions, 6343 flow [2021-03-24 20:12:17,319 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6363, PETRI_DIFFERENCE_MINUEND_PLACES=336, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=400, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=315, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6343, PETRI_PLACES=354, PETRI_TRANSITIONS=388} [2021-03-24 20:12:17,319 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 288 predicate places. [2021-03-24 20:12:17,319 INFO L480 AbstractCegarLoop]: Abstraction has has 354 places, 388 transitions, 6343 flow [2021-03-24 20:12:17,320 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:17,320 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:17,320 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:17,320 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-03-24 20:12:17,320 INFO L428 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:17,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:17,320 INFO L82 PathProgramCache]: Analyzing trace with hash -1091261799, now seen corresponding path program 39 times [2021-03-24 20:12:17,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:17,320 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078853772] [2021-03-24 20:12:17,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:17,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:17,385 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:17,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:17,386 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:17,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:17,396 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:17,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:17,417 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:12:17,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:17,439 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:12:17,439 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:17,476 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:12:17,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:12:17,522 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:12:17,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:17,539 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:12:17,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:17,557 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:12:17,557 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:12:17,589 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:12:17,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:12:17,623 INFO L142 QuantifierPusher]: treesize reduction 30, result has 60.0 percent of original size [2021-03-24 20:12:17,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:12:17,661 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:12:17,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:12:17,706 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:12:17,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:12:17,742 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:12:17,743 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:12:17,756 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:12:17,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:12:17,790 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:12:17,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:12:17,826 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:12:17,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:12:17,853 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:12:17,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:12:17,877 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:12:17,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:17,901 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:12:17,902 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:17,920 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:17,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:17,921 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:17,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:17,945 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:17,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:17,971 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:17,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:17,995 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:17,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:18,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:18,019 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078853772] [2021-03-24 20:12:18,019 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:18,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:18,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462659869] [2021-03-24 20:12:18,019 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:18,019 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:18,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:18,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:18,021 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:12:18,022 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 354 places, 388 transitions, 6343 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:18,022 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:18,022 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:12:18,022 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:18,848 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:12:19,082 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:12:20,453 INFO L129 PetriNetUnfolder]: 677/2525 cut-off events. [2021-03-24 20:12:20,453 INFO L130 PetriNetUnfolder]: For 55375/55410 co-relation queries the response was YES. [2021-03-24 20:12:20,477 INFO L84 FinitePrefix]: Finished finitePrefix Result has 19169 conditions, 2525 events. 677/2525 cut-off events. For 55375/55410 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 24422 event pairs, 367 based on Foata normal form. 23/2510 useless extension candidates. Maximal degree in co-relation 19053. Up to 1914 conditions per place. [2021-03-24 20:12:20,483 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 285 selfloop transitions, 101 changer transitions 24/420 dead transitions. [2021-03-24 20:12:20,483 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 358 places, 420 transitions, 7600 flow [2021-03-24 20:12:20,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:20,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:20,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2481 transitions. [2021-03-24 20:12:20,485 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4958033573141487 [2021-03-24 20:12:20,485 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2481 transitions. [2021-03-24 20:12:20,485 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2481 transitions. [2021-03-24 20:12:20,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:20,486 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2481 transitions. [2021-03-24 20:12:20,487 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.83333333333334) internal successors, (2481), 18 states have internal predecessors, (2481), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:20,489 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:20,489 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:20,489 INFO L185 Difference]: Start difference. First operand has 354 places, 388 transitions, 6343 flow. Second operand 18 states and 2481 transitions. [2021-03-24 20:12:20,489 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 358 places, 420 transitions, 7600 flow [2021-03-24 20:12:20,726 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 342 places, 420 transitions, 7394 flow, removed 17 selfloop flow, removed 16 redundant places. [2021-03-24 20:12:20,731 INFO L241 Difference]: Finished difference. Result has 347 places, 383 transitions, 6316 flow [2021-03-24 20:12:20,731 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6151, PETRI_DIFFERENCE_MINUEND_PLACES=325, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=388, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=287, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6316, PETRI_PLACES=347, PETRI_TRANSITIONS=383} [2021-03-24 20:12:20,732 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 281 predicate places. [2021-03-24 20:12:20,732 INFO L480 AbstractCegarLoop]: Abstraction has has 347 places, 383 transitions, 6316 flow [2021-03-24 20:12:20,732 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:20,732 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:20,732 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:20,732 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-03-24 20:12:20,732 INFO L428 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:20,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:20,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1005578855, now seen corresponding path program 40 times [2021-03-24 20:12:20,733 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:20,733 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [551813155] [2021-03-24 20:12:20,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:20,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:20,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:20,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:20,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:20,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:20,820 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:20,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:20,843 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:12:20,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:20,874 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:12:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:12:20,932 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:12:20,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:20,995 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:12:20,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:21,032 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:12:21,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:21,068 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:12:21,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:12:21,118 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:12:21,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:21,164 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:12:21,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:21,210 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:12:21,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:12:21,263 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:12:21,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:12:21,311 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:12:21,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:12:21,328 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 20:12:21,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:21,374 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:12:21,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:12:21,422 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:12:21,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:21,456 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:12:21,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:21,497 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:12:21,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:21,538 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:12:21,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:12:21,576 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 20:12:21,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:21,617 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:12:21,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:12:21,641 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:21,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:21,666 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:21,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:21,667 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:21,667 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:21,691 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [551813155] [2021-03-24 20:12:21,691 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:21,691 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:21,691 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1009348325] [2021-03-24 20:12:21,691 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:21,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:21,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:21,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:21,693 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:12:21,694 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 347 places, 383 transitions, 6316 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:21,694 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:21,694 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:12:21,694 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:22,331 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 60 [2021-03-24 20:12:22,529 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:12:22,775 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-24 20:12:24,362 INFO L129 PetriNetUnfolder]: 665/2499 cut-off events. [2021-03-24 20:12:24,362 INFO L130 PetriNetUnfolder]: For 51362/51395 co-relation queries the response was YES. [2021-03-24 20:12:24,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18633 conditions, 2499 events. 665/2499 cut-off events. For 51362/51395 co-relation queries the response was YES. Maximal size of possible extension queue 246. Compared 24192 event pairs, 366 based on Foata normal form. 20/2482 useless extension candidates. Maximal degree in co-relation 18517. Up to 1920 conditions per place. [2021-03-24 20:12:24,386 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 289 selfloop transitions, 104 changer transitions 9/412 dead transitions. [2021-03-24 20:12:24,386 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 361 places, 412 transitions, 7533 flow [2021-03-24 20:12:24,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:12:24,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:12:24,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2616 transitions. [2021-03-24 20:12:24,388 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49526694433926544 [2021-03-24 20:12:24,388 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2616 transitions. [2021-03-24 20:12:24,388 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2616 transitions. [2021-03-24 20:12:24,388 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:24,388 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2616 transitions. [2021-03-24 20:12:24,390 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.68421052631578) internal successors, (2616), 19 states have internal predecessors, (2616), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:24,391 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:24,392 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:24,392 INFO L185 Difference]: Start difference. First operand has 347 places, 383 transitions, 6316 flow. Second operand 19 states and 2616 transitions. [2021-03-24 20:12:24,392 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 361 places, 412 transitions, 7533 flow [2021-03-24 20:12:24,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 344 places, 412 transitions, 7300 flow, removed 10 selfloop flow, removed 17 redundant places. [2021-03-24 20:12:24,596 INFO L241 Difference]: Finished difference. Result has 348 places, 386 transitions, 6396 flow [2021-03-24 20:12:24,596 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6096, PETRI_DIFFERENCE_MINUEND_PLACES=326, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=100, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=279, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6396, PETRI_PLACES=348, PETRI_TRANSITIONS=386} [2021-03-24 20:12:24,597 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 282 predicate places. [2021-03-24 20:12:24,597 INFO L480 AbstractCegarLoop]: Abstraction has has 348 places, 386 transitions, 6396 flow [2021-03-24 20:12:24,597 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:24,597 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:24,597 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:24,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-03-24 20:12:24,597 INFO L428 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:24,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:24,598 INFO L82 PathProgramCache]: Analyzing trace with hash -2095344291, now seen corresponding path program 41 times [2021-03-24 20:12:24,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:24,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [295022365] [2021-03-24 20:12:24,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:24,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:24,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:24,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:24,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:24,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:24,683 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:24,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:24,707 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 20:12:24,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:12:24,735 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:12:24,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:12:24,785 INFO L142 QuantifierPusher]: treesize reduction 20, result has 79.6 percent of original size [2021-03-24 20:12:24,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-24 20:12:24,837 INFO L142 QuantifierPusher]: treesize reduction 20, result has 78.0 percent of original size [2021-03-24 20:12:24,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:12:24,894 INFO L142 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size [2021-03-24 20:12:24,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:24,905 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:12:24,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:24,924 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:12:24,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:24,944 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:24,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:24,967 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:24,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:24,991 INFO L142 QuantifierPusher]: treesize reduction 27, result has 60.9 percent of original size [2021-03-24 20:12:24,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:12:25,018 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:25,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:25,043 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:12:25,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:25,058 INFO L142 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-03-24 20:12:25,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:25,081 INFO L142 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-03-24 20:12:25,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:25,109 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:12:25,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:25,136 INFO L142 QuantifierPusher]: treesize reduction 42, result has 49.4 percent of original size [2021-03-24 20:12:25,137 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.4 percent of original size 35 [2021-03-24 20:12:25,175 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:12:25,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:12:25,201 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:12:25,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:12:25,219 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:12:25,219 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:12:25,243 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:25,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:25,273 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:25,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:25,307 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:25,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:25,339 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:25,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:25,340 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:25,340 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:25,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:25,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [295022365] [2021-03-24 20:12:25,371 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:25,371 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:25,371 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [595777547] [2021-03-24 20:12:25,372 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:25,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:25,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:25,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:25,374 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:25,375 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 348 places, 386 transitions, 6396 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:25,375 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:25,375 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:25,375 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:26,248 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2021-03-24 20:12:26,486 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 64 [2021-03-24 20:12:27,914 INFO L129 PetriNetUnfolder]: 661/2485 cut-off events. [2021-03-24 20:12:27,914 INFO L130 PetriNetUnfolder]: For 51700/51733 co-relation queries the response was YES. [2021-03-24 20:12:27,941 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18678 conditions, 2485 events. 661/2485 cut-off events. For 51700/51733 co-relation queries the response was YES. Maximal size of possible extension queue 243. Compared 24024 event pairs, 374 based on Foata normal form. 19/2466 useless extension candidates. Maximal degree in co-relation 18562. Up to 1929 conditions per place. [2021-03-24 20:12:27,947 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 292 selfloop transitions, 80 changer transitions 29/407 dead transitions. [2021-03-24 20:12:27,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 363 places, 407 transitions, 7445 flow [2021-03-24 20:12:27,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:27,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:27,948 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1610 transitions. [2021-03-24 20:12:27,948 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32174260591526777 [2021-03-24 20:12:27,948 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1610 transitions. [2021-03-24 20:12:27,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1610 transitions. [2021-03-24 20:12:27,949 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:27,949 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1610 transitions. [2021-03-24 20:12:27,950 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.44444444444444) internal successors, (1610), 18 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:27,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:27,952 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:27,952 INFO L185 Difference]: Start difference. First operand has 348 places, 386 transitions, 6396 flow. Second operand 18 states and 1610 transitions. [2021-03-24 20:12:27,952 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 363 places, 407 transitions, 7445 flow [2021-03-24 20:12:28,165 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 350 places, 407 transitions, 7171 flow, removed 38 selfloop flow, removed 13 redundant places. [2021-03-24 20:12:28,171 INFO L241 Difference]: Finished difference. Result has 351 places, 369 transitions, 6030 flow [2021-03-24 20:12:28,171 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=6124, PETRI_DIFFERENCE_MINUEND_PLACES=333, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=386, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=80, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=306, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=6030, PETRI_PLACES=351, PETRI_TRANSITIONS=369} [2021-03-24 20:12:28,171 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 285 predicate places. [2021-03-24 20:12:28,171 INFO L480 AbstractCegarLoop]: Abstraction has has 351 places, 369 transitions, 6030 flow [2021-03-24 20:12:28,172 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:28,172 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:28,172 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:28,172 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-03-24 20:12:28,172 INFO L428 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:28,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:28,172 INFO L82 PathProgramCache]: Analyzing trace with hash -2124256335, now seen corresponding path program 42 times [2021-03-24 20:12:28,172 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:28,172 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1128830645] [2021-03-24 20:12:28,172 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:28,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:28,248 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:28,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:28,249 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:28,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:28,260 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:28,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:28,283 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:12:28,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:28,313 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:12:28,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:12:28,369 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:12:28,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:28,421 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:12:28,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:28,450 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:12:28,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:28,477 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:12:28,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:12:28,516 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:12:28,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:12:28,554 INFO L142 QuantifierPusher]: treesize reduction 47, result has 58.8 percent of original size [2021-03-24 20:12:28,555 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:12:28,602 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:12:28,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:12:28,649 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:12:28,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:12:28,696 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:12:28,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:12:28,711 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 20:12:28,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:28,755 INFO L142 QuantifierPusher]: treesize reduction 61, result has 53.4 percent of original size [2021-03-24 20:12:28,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:12:28,813 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:12:28,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:12:28,878 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:12:28,879 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:28,918 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:12:28,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:28,939 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:12:28,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:12:28,975 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:12:28,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:29,014 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:12:29,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:12:29,036 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:29,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:29,060 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:29,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:29,061 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:29,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:29,084 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:29,084 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1128830645] [2021-03-24 20:12:29,084 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:29,084 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:29,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584879633] [2021-03-24 20:12:29,084 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:29,084 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:29,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:29,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=449, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:29,086 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:12:29,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 351 places, 369 transitions, 6030 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:29,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:29,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:12:29,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:29,741 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 60 [2021-03-24 20:12:29,954 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 64 [2021-03-24 20:12:30,223 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2021-03-24 20:12:30,439 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-03-24 20:12:31,645 INFO L129 PetriNetUnfolder]: 662/2477 cut-off events. [2021-03-24 20:12:31,645 INFO L130 PetriNetUnfolder]: For 51180/51219 co-relation queries the response was YES. [2021-03-24 20:12:31,668 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18476 conditions, 2477 events. 662/2477 cut-off events. For 51180/51219 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 23945 event pairs, 371 based on Foata normal form. 18/2460 useless extension candidates. Maximal degree in co-relation 18360. Up to 1910 conditions per place. [2021-03-24 20:12:31,674 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 284 selfloop transitions, 94 changer transitions 9/397 dead transitions. [2021-03-24 20:12:31,674 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 350 places, 397 transitions, 7212 flow [2021-03-24 20:12:31,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:12:31,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:12:31,676 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2608 transitions. [2021-03-24 20:12:31,676 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4937523665278304 [2021-03-24 20:12:31,676 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2608 transitions. [2021-03-24 20:12:31,676 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2608 transitions. [2021-03-24 20:12:31,676 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:31,677 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2608 transitions. [2021-03-24 20:12:31,678 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.26315789473685) internal successors, (2608), 19 states have internal predecessors, (2608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:31,680 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:31,680 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:31,680 INFO L185 Difference]: Start difference. First operand has 351 places, 369 transitions, 6030 flow. Second operand 19 states and 2608 transitions. [2021-03-24 20:12:31,680 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 350 places, 397 transitions, 7212 flow [2021-03-24 20:12:31,907 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 331 places, 397 transitions, 6986 flow, removed 22 selfloop flow, removed 19 redundant places. [2021-03-24 20:12:31,913 INFO L241 Difference]: Finished difference. Result has 335 places, 376 transitions, 6172 flow [2021-03-24 20:12:31,913 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5817, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=86, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=277, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=6172, PETRI_PLACES=335, PETRI_TRANSITIONS=376} [2021-03-24 20:12:31,913 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 269 predicate places. [2021-03-24 20:12:31,913 INFO L480 AbstractCegarLoop]: Abstraction has has 335 places, 376 transitions, 6172 flow [2021-03-24 20:12:31,914 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:31,914 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:31,914 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:31,914 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-03-24 20:12:31,914 INFO L428 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:31,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:31,914 INFO L82 PathProgramCache]: Analyzing trace with hash -1242755847, now seen corresponding path program 43 times [2021-03-24 20:12:31,915 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:31,915 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237306729] [2021-03-24 20:12:31,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:31,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:31,973 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:31,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:31,974 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:31,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:31,984 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:31,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:32,004 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:12:32,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:32,032 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:12:32,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:12:32,073 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:12:32,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:32,122 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:12:32,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:12:32,179 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:12:32,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:32,181 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:12:32,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:32,200 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:12:32,201 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:32,220 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:32,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:32,242 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:12:32,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:32,263 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:12:32,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:32,284 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:12:32,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:32,307 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 20:12:32,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:32,331 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 20:12:32,331 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 20:12:32,374 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 20:12:32,375 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 20:12:32,392 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 20:12:32,393 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:12:32,433 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 20:12:32,434 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 20:12:32,492 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:12:32,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:12:32,518 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:12:32,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:12:32,536 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:12:32,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:12:32,561 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:32,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:32,587 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:32,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:32,623 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:32,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:32,648 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:32,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:32,649 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:32,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:32,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:32,673 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237306729] [2021-03-24 20:12:32,673 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:32,673 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:32,673 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018040126] [2021-03-24 20:12:32,674 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:32,674 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:32,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:32,674 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:32,675 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:32,676 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 376 transitions, 6172 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:32,676 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:32,676 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:32,676 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:33,514 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-03-24 20:12:33,757 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2021-03-24 20:12:34,045 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-03-24 20:12:35,486 INFO L129 PetriNetUnfolder]: 658/2459 cut-off events. [2021-03-24 20:12:35,486 INFO L130 PetriNetUnfolder]: For 49360/49385 co-relation queries the response was YES. [2021-03-24 20:12:35,503 INFO L84 FinitePrefix]: Finished finitePrefix Result has 18351 conditions, 2459 events. 658/2459 cut-off events. For 49360/49385 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 23679 event pairs, 363 based on Foata normal form. 9/2432 useless extension candidates. Maximal degree in co-relation 18239. Up to 1976 conditions per place. [2021-03-24 20:12:35,508 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 294 selfloop transitions, 82 changer transitions 17/399 dead transitions. [2021-03-24 20:12:35,508 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 399 transitions, 7204 flow [2021-03-24 20:12:35,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:12:35,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:12:35,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1790 transitions. [2021-03-24 20:12:35,510 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32194244604316546 [2021-03-24 20:12:35,510 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1790 transitions. [2021-03-24 20:12:35,510 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1790 transitions. [2021-03-24 20:12:35,510 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:35,510 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1790 transitions. [2021-03-24 20:12:35,511 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.5) internal successors, (1790), 20 states have internal predecessors, (1790), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:35,513 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:35,513 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:35,514 INFO L185 Difference]: Start difference. First operand has 335 places, 376 transitions, 6172 flow. Second operand 20 states and 1790 transitions. [2021-03-24 20:12:35,514 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 399 transitions, 7204 flow [2021-03-24 20:12:35,688 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 338 places, 399 transitions, 6904 flow, removed 47 selfloop flow, removed 14 redundant places. [2021-03-24 20:12:35,693 INFO L241 Difference]: Finished difference. Result has 339 places, 369 transitions, 5920 flow [2021-03-24 20:12:35,694 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5875, PETRI_DIFFERENCE_MINUEND_PLACES=319, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=376, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=82, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5920, PETRI_PLACES=339, PETRI_TRANSITIONS=369} [2021-03-24 20:12:35,694 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 273 predicate places. [2021-03-24 20:12:35,694 INFO L480 AbstractCegarLoop]: Abstraction has has 339 places, 369 transitions, 5920 flow [2021-03-24 20:12:35,694 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:35,694 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:35,694 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:35,695 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-03-24 20:12:35,695 INFO L428 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:35,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:35,695 INFO L82 PathProgramCache]: Analyzing trace with hash -2118996427, now seen corresponding path program 44 times [2021-03-24 20:12:35,695 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:35,695 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340665517] [2021-03-24 20:12:35,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:35,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:35,767 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:35,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:35,768 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:35,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:35,780 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:35,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:35,804 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 20:12:35,804 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:12:35,828 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:12:35,829 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:12:35,868 INFO L142 QuantifierPusher]: treesize reduction 20, result has 79.6 percent of original size [2021-03-24 20:12:35,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-24 20:12:35,916 INFO L142 QuantifierPusher]: treesize reduction 20, result has 78.0 percent of original size [2021-03-24 20:12:35,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:12:35,973 INFO L142 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size [2021-03-24 20:12:35,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:12:35,983 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:12:35,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:36,002 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:12:36,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:36,022 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:36,022 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:36,044 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:12:36,044 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:12:36,067 INFO L142 QuantifierPusher]: treesize reduction 27, result has 60.9 percent of original size [2021-03-24 20:12:36,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:12:36,093 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:36,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:36,118 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:36,119 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:36,143 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:12:36,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:36,158 INFO L142 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-03-24 20:12:36,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:36,181 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:12:36,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:36,207 INFO L142 QuantifierPusher]: treesize reduction 42, result has 49.4 percent of original size [2021-03-24 20:12:36,208 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.4 percent of original size 35 [2021-03-24 20:12:36,246 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:12:36,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:12:36,271 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:12:36,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:12:36,289 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:12:36,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:12:36,313 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:36,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:36,338 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:36,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:36,364 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:36,365 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:36,389 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:36,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:36,390 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:36,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:36,413 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:36,413 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340665517] [2021-03-24 20:12:36,413 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:36,413 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:36,413 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214923247] [2021-03-24 20:12:36,413 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:36,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:36,414 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:36,414 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:36,415 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:36,416 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 339 places, 369 transitions, 5920 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:36,416 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:36,416 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:36,416 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:37,237 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:12:37,465 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:12:38,848 INFO L129 PetriNetUnfolder]: 652/2434 cut-off events. [2021-03-24 20:12:38,848 INFO L130 PetriNetUnfolder]: For 47374/47399 co-relation queries the response was YES. [2021-03-24 20:12:38,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17918 conditions, 2434 events. 652/2434 cut-off events. For 47374/47399 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 23347 event pairs, 365 based on Foata normal form. 12/2409 useless extension candidates. Maximal degree in co-relation 17806. Up to 1878 conditions per place. [2021-03-24 20:12:38,873 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 271 selfloop transitions, 91 changer transitions 22/390 dead transitions. [2021-03-24 20:12:38,874 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 352 places, 390 transitions, 6913 flow [2021-03-24 20:12:38,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:38,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:38,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1617 transitions. [2021-03-24 20:12:38,875 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32314148681055155 [2021-03-24 20:12:38,875 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1617 transitions. [2021-03-24 20:12:38,875 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1617 transitions. [2021-03-24 20:12:38,876 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:38,876 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1617 transitions. [2021-03-24 20:12:38,877 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.83333333333333) internal successors, (1617), 18 states have internal predecessors, (1617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:38,878 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:38,878 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:38,879 INFO L185 Difference]: Start difference. First operand has 339 places, 369 transitions, 5920 flow. Second operand 18 states and 1617 transitions. [2021-03-24 20:12:38,879 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 352 places, 390 transitions, 6913 flow [2021-03-24 20:12:39,051 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 330 places, 390 transitions, 6710 flow, removed 9 selfloop flow, removed 22 redundant places. [2021-03-24 20:12:39,056 INFO L241 Difference]: Finished difference. Result has 331 places, 359 transitions, 5771 flow [2021-03-24 20:12:39,057 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5719, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=369, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=91, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=278, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5771, PETRI_PLACES=331, PETRI_TRANSITIONS=359} [2021-03-24 20:12:39,057 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 265 predicate places. [2021-03-24 20:12:39,057 INFO L480 AbstractCegarLoop]: Abstraction has has 331 places, 359 transitions, 5771 flow [2021-03-24 20:12:39,057 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:39,057 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:39,057 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:39,057 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-03-24 20:12:39,058 INFO L428 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:39,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:39,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1202615539, now seen corresponding path program 45 times [2021-03-24 20:12:39,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:39,058 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098243228] [2021-03-24 20:12:39,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:39,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:39,132 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:39,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:39,133 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:39,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:39,144 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:39,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:39,169 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-24 20:12:39,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:12:39,196 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.4 percent of original size [2021-03-24 20:12:39,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 20:12:39,246 INFO L142 QuantifierPusher]: treesize reduction 34, result has 70.2 percent of original size [2021-03-24 20:12:39,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 20:12:39,292 INFO L142 QuantifierPusher]: treesize reduction 12, result has 85.9 percent of original size [2021-03-24 20:12:39,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 20:12:39,357 INFO L142 QuantifierPusher]: treesize reduction 15, result has 77.9 percent of original size [2021-03-24 20:12:39,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:39,394 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.0 percent of original size [2021-03-24 20:12:39,394 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:12:39,429 INFO L142 QuantifierPusher]: treesize reduction 12, result has 84.0 percent of original size [2021-03-24 20:12:39,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:12:39,474 INFO L142 QuantifierPusher]: treesize reduction 12, result has 84.0 percent of original size [2021-03-24 20:12:39,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:12:39,524 INFO L142 QuantifierPusher]: treesize reduction 24, result has 69.6 percent of original size [2021-03-24 20:12:39,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:12:39,567 INFO L142 QuantifierPusher]: treesize reduction 24, result has 70.7 percent of original size [2021-03-24 20:12:39,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 20:12:39,583 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 20:12:39,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:12:39,598 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 20:12:39,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:12:39,639 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:12:39,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:39,681 INFO L142 QuantifierPusher]: treesize reduction 96, result has 31.4 percent of original size [2021-03-24 20:12:39,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:39,730 INFO L142 QuantifierPusher]: treesize reduction 92, result has 37.4 percent of original size [2021-03-24 20:12:39,731 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:12:39,783 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:12:39,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:39,821 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:12:39,822 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:39,840 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:12:39,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:12:39,875 INFO L142 QuantifierPusher]: treesize reduction 41, result has 43.8 percent of original size [2021-03-24 20:12:39,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:39,911 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 20:12:39,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:39,949 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:39,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:39,972 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:39,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:39,973 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:39,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:39,994 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:39,995 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098243228] [2021-03-24 20:12:39,995 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:39,995 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:39,995 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769811694] [2021-03-24 20:12:39,995 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:39,995 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:39,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:39,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:39,997 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:39,998 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 331 places, 359 transitions, 5771 flow. Second operand has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:39,998 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:39,998 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:39,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:40,614 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-03-24 20:12:40,820 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 61 [2021-03-24 20:12:41,080 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 63 [2021-03-24 20:12:41,307 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-03-24 20:12:42,531 INFO L129 PetriNetUnfolder]: 645/2406 cut-off events. [2021-03-24 20:12:42,532 INFO L130 PetriNetUnfolder]: For 42413/42440 co-relation queries the response was YES. [2021-03-24 20:12:42,552 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17353 conditions, 2406 events. 645/2406 cut-off events. For 42413/42440 co-relation queries the response was YES. Maximal size of possible extension queue 239. Compared 23030 event pairs, 365 based on Foata normal form. 12/2380 useless extension candidates. Maximal degree in co-relation 17245. Up to 1859 conditions per place. [2021-03-24 20:12:42,558 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 271 selfloop transitions, 85 changer transitions 18/380 dead transitions. [2021-03-24 20:12:42,558 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 339 places, 380 transitions, 6728 flow [2021-03-24 20:12:42,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:12:42,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:12:42,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1789 transitions. [2021-03-24 20:12:42,560 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32176258992805756 [2021-03-24 20:12:42,560 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1789 transitions. [2021-03-24 20:12:42,560 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1789 transitions. [2021-03-24 20:12:42,560 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:42,560 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1789 transitions. [2021-03-24 20:12:42,562 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.45) internal successors, (1789), 20 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:42,564 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:42,564 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:42,564 INFO L185 Difference]: Start difference. First operand has 331 places, 359 transitions, 5771 flow. Second operand 20 states and 1789 transitions. [2021-03-24 20:12:42,564 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 339 places, 380 transitions, 6728 flow [2021-03-24 20:12:42,735 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 380 transitions, 6480 flow, removed 11 selfloop flow, removed 19 redundant places. [2021-03-24 20:12:42,740 INFO L241 Difference]: Finished difference. Result has 321 places, 351 transitions, 5572 flow [2021-03-24 20:12:42,740 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5528, PETRI_DIFFERENCE_MINUEND_PLACES=301, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=359, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=274, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5572, PETRI_PLACES=321, PETRI_TRANSITIONS=351} [2021-03-24 20:12:42,740 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 255 predicate places. [2021-03-24 20:12:42,740 INFO L480 AbstractCegarLoop]: Abstraction has has 321 places, 351 transitions, 5572 flow [2021-03-24 20:12:42,741 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:42,741 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:42,741 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:42,741 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-03-24 20:12:42,741 INFO L428 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:42,741 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:42,741 INFO L82 PathProgramCache]: Analyzing trace with hash -1252075245, now seen corresponding path program 46 times [2021-03-24 20:12:42,741 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:42,741 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708040471] [2021-03-24 20:12:42,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:42,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:42,807 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:42,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:42,808 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:42,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:42,817 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:42,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:42,838 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:12:42,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:42,860 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:12:42,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:42,896 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:12:42,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:12:42,941 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:12:42,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:42,958 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:12:42,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:42,976 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:12:42,976 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:12:43,008 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:12:43,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:12:43,038 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:12:43,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:12:43,070 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:12:43,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:12:43,102 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:12:43,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:12:43,139 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:12:43,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:12:43,163 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:12:43,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:12:43,201 INFO L142 QuantifierPusher]: treesize reduction 40, result has 51.8 percent of original size [2021-03-24 20:12:43,202 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 20:12:43,245 INFO L142 QuantifierPusher]: treesize reduction 45, result has 46.4 percent of original size [2021-03-24 20:12:43,245 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:12:43,284 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:12:43,284 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:12:43,325 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:12:43,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:43,351 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:12:43,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:43,391 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:43,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:43,392 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:43,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:43,417 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:43,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:43,445 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:43,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:43,470 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:43,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:43,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:43,494 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708040471] [2021-03-24 20:12:43,494 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:43,494 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:43,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270404795] [2021-03-24 20:12:43,494 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:43,494 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:43,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:43,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:43,496 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:12:43,497 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 321 places, 351 transitions, 5572 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:43,497 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:43,497 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:12:43,497 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:44,305 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:12:44,563 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:12:44,754 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-03-24 20:12:45,918 INFO L129 PetriNetUnfolder]: 668/2470 cut-off events. [2021-03-24 20:12:45,918 INFO L130 PetriNetUnfolder]: For 41010/41033 co-relation queries the response was YES. [2021-03-24 20:12:45,940 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17522 conditions, 2470 events. 668/2470 cut-off events. For 41010/41033 co-relation queries the response was YES. Maximal size of possible extension queue 247. Compared 23743 event pairs, 366 based on Foata normal form. 12/2445 useless extension candidates. Maximal degree in co-relation 17419. Up to 1946 conditions per place. [2021-03-24 20:12:45,945 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 275 selfloop transitions, 91 changer transitions 19/395 dead transitions. [2021-03-24 20:12:45,945 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 334 places, 395 transitions, 7060 flow [2021-03-24 20:12:45,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:45,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2478 transitions. [2021-03-24 20:12:45,947 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4952038369304556 [2021-03-24 20:12:45,948 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2478 transitions. [2021-03-24 20:12:45,948 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2478 transitions. [2021-03-24 20:12:45,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:45,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2478 transitions. [2021-03-24 20:12:45,949 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.66666666666666) internal successors, (2478), 18 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:45,951 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:45,951 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:45,951 INFO L185 Difference]: Start difference. First operand has 321 places, 351 transitions, 5572 flow. Second operand 18 states and 2478 transitions. [2021-03-24 20:12:45,951 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 334 places, 395 transitions, 7060 flow [2021-03-24 20:12:46,118 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 309 places, 395 transitions, 6811 flow, removed 18 selfloop flow, removed 25 redundant places. [2021-03-24 20:12:46,124 INFO L241 Difference]: Finished difference. Result has 313 places, 365 transitions, 5857 flow [2021-03-24 20:12:46,124 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5341, PETRI_DIFFERENCE_MINUEND_PLACES=292, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=351, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=77, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5857, PETRI_PLACES=313, PETRI_TRANSITIONS=365} [2021-03-24 20:12:46,124 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 247 predicate places. [2021-03-24 20:12:46,124 INFO L480 AbstractCegarLoop]: Abstraction has has 313 places, 365 transitions, 5857 flow [2021-03-24 20:12:46,125 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:46,125 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:46,125 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:46,125 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-03-24 20:12:46,125 INFO L428 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:46,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:46,125 INFO L82 PathProgramCache]: Analyzing trace with hash 754515493, now seen corresponding path program 47 times [2021-03-24 20:12:46,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:46,125 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821729849] [2021-03-24 20:12:46,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:46,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:46,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:46,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:46,185 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:46,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:46,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:46,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:46,224 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:12:46,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:46,236 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:12:46,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:46,256 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:12:46,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:46,280 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:12:46,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:12:46,314 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:12:46,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:46,315 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:12:46,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:46,349 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:12:46,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:12:46,374 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:12:46,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:46,418 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:12:46,419 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:46,465 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:12:46,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:12:46,501 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:12:46,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:12:46,522 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:12:46,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:46,551 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.9 percent of original size [2021-03-24 20:12:46,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:46,579 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:12:46,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:46,611 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:12:46,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:12:46,638 INFO L142 QuantifierPusher]: treesize reduction 15, result has 63.4 percent of original size [2021-03-24 20:12:46,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:12:46,660 INFO L142 QuantifierPusher]: treesize reduction 19, result has 61.2 percent of original size [2021-03-24 20:12:46,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:12:46,694 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:12:46,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:46,719 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:12:46,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:46,737 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:46,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:46,738 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:46,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:46,762 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:46,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:46,788 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:46,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:46,812 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:46,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:46,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:46,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821729849] [2021-03-24 20:12:46,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:46,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:46,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936564222] [2021-03-24 20:12:46,835 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:46,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:46,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:46,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:46,837 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:46,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 313 places, 365 transitions, 5857 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:46,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:46,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:46,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:49,234 INFO L129 PetriNetUnfolder]: 654/2429 cut-off events. [2021-03-24 20:12:49,235 INFO L130 PetriNetUnfolder]: For 40108/40131 co-relation queries the response was YES. [2021-03-24 20:12:49,250 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17372 conditions, 2429 events. 654/2429 cut-off events. For 40108/40131 co-relation queries the response was YES. Maximal size of possible extension queue 244. Compared 23412 event pairs, 294 based on Foata normal form. 13/2409 useless extension candidates. Maximal degree in co-relation 17271. Up to 1600 conditions per place. [2021-03-24 20:12:49,254 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 229 selfloop transitions, 147 changer transitions 30/412 dead transitions. [2021-03-24 20:12:49,254 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 327 places, 412 transitions, 7266 flow [2021-03-24 20:12:49,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:49,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:49,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1624 transitions. [2021-03-24 20:12:49,256 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32454036770583533 [2021-03-24 20:12:49,256 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1624 transitions. [2021-03-24 20:12:49,256 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1624 transitions. [2021-03-24 20:12:49,256 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:49,256 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1624 transitions. [2021-03-24 20:12:49,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 90.22222222222223) internal successors, (1624), 18 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:49,259 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:49,259 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:49,259 INFO L185 Difference]: Start difference. First operand has 313 places, 365 transitions, 5857 flow. Second operand 18 states and 1624 transitions. [2021-03-24 20:12:49,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 327 places, 412 transitions, 7266 flow [2021-03-24 20:12:49,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 313 places, 412 transitions, 7006 flow, removed 47 selfloop flow, removed 14 redundant places. [2021-03-24 20:12:49,414 INFO L241 Difference]: Finished difference. Result has 318 places, 356 transitions, 5792 flow [2021-03-24 20:12:49,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5601, PETRI_DIFFERENCE_MINUEND_PLACES=296, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=365, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=147, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=218, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5792, PETRI_PLACES=318, PETRI_TRANSITIONS=356} [2021-03-24 20:12:49,414 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 252 predicate places. [2021-03-24 20:12:49,414 INFO L480 AbstractCegarLoop]: Abstraction has has 318 places, 356 transitions, 5792 flow [2021-03-24 20:12:49,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:49,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:49,415 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:49,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-03-24 20:12:49,415 INFO L428 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:49,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:49,415 INFO L82 PathProgramCache]: Analyzing trace with hash -1101148939, now seen corresponding path program 48 times [2021-03-24 20:12:49,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:49,416 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2110824039] [2021-03-24 20:12:49,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:49,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:49,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:49,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:49,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:49,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:49,490 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:49,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:49,504 INFO L142 QuantifierPusher]: treesize reduction 30, result has 43.4 percent of original size [2021-03-24 20:12:49,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:49,517 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 20:12:49,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:49,536 INFO L142 QuantifierPusher]: treesize reduction 30, result has 68.8 percent of original size [2021-03-24 20:12:49,536 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-03-24 20:12:49,578 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.1 percent of original size [2021-03-24 20:12:49,579 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:49,596 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 20:12:49,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:49,613 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 20:12:49,614 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:12:49,646 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:12:49,646 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:12:49,676 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:12:49,676 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:12:49,708 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 20:12:49,708 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:12:49,744 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:49,745 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:12:49,771 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:12:49,772 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:12:49,818 INFO L142 QuantifierPusher]: treesize reduction 19, result has 66.7 percent of original size [2021-03-24 20:12:49,819 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:12:49,863 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 20:12:49,863 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:12:49,899 INFO L142 QuantifierPusher]: treesize reduction 43, result has 44.9 percent of original size [2021-03-24 20:12:49,900 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size 28 [2021-03-24 20:12:49,940 INFO L142 QuantifierPusher]: treesize reduction 48, result has 44.8 percent of original size [2021-03-24 20:12:49,940 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:12:49,980 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:12:49,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:50,008 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:12:50,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:50,028 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:12:50,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:50,047 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:12:50,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:50,072 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:12:50,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:50,099 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:12:50,100 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:50,124 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:50,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:50,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:50,148 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2110824039] [2021-03-24 20:12:50,148 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:50,148 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:50,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85454692] [2021-03-24 20:12:50,148 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:50,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:50,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:50,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:50,150 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:12:50,151 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 318 places, 356 transitions, 5792 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:50,151 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:50,151 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:12:50,151 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:50,998 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-03-24 20:12:51,293 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-03-24 20:12:51,488 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-03-24 20:12:51,673 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 73 [2021-03-24 20:12:52,689 INFO L129 PetriNetUnfolder]: 647/2417 cut-off events. [2021-03-24 20:12:52,689 INFO L130 PetriNetUnfolder]: For 43589/43608 co-relation queries the response was YES. [2021-03-24 20:12:52,708 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17531 conditions, 2417 events. 647/2417 cut-off events. For 43589/43608 co-relation queries the response was YES. Maximal size of possible extension queue 245. Compared 23222 event pairs, 370 based on Foata normal form. 11/2392 useless extension candidates. Maximal degree in co-relation 17427. Up to 1845 conditions per place. [2021-03-24 20:12:52,714 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 264 selfloop transitions, 71 changer transitions 29/374 dead transitions. [2021-03-24 20:12:52,714 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 331 places, 374 transitions, 6727 flow [2021-03-24 20:12:52,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:52,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2469 transitions. [2021-03-24 20:12:52,716 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4934052757793765 [2021-03-24 20:12:52,716 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2469 transitions. [2021-03-24 20:12:52,716 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2469 transitions. [2021-03-24 20:12:52,716 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:52,716 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2469 transitions. [2021-03-24 20:12:52,717 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.16666666666666) internal successors, (2469), 18 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:52,719 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:52,719 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:52,719 INFO L185 Difference]: Start difference. First operand has 318 places, 356 transitions, 5792 flow. Second operand 18 states and 2469 transitions. [2021-03-24 20:12:52,719 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 331 places, 374 transitions, 6727 flow [2021-03-24 20:12:52,881 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 314 places, 374 transitions, 6486 flow, removed 12 selfloop flow, removed 17 redundant places. [2021-03-24 20:12:52,886 INFO L241 Difference]: Finished difference. Result has 317 places, 340 transitions, 5470 flow [2021-03-24 20:12:52,886 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5555, PETRI_DIFFERENCE_MINUEND_PLACES=297, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=356, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=285, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5470, PETRI_PLACES=317, PETRI_TRANSITIONS=340} [2021-03-24 20:12:52,886 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 251 predicate places. [2021-03-24 20:12:52,886 INFO L480 AbstractCegarLoop]: Abstraction has has 317 places, 340 transitions, 5470 flow [2021-03-24 20:12:52,887 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:52,887 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:52,887 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:52,887 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-03-24 20:12:52,887 INFO L428 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:52,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:52,887 INFO L82 PathProgramCache]: Analyzing trace with hash 738327521, now seen corresponding path program 49 times [2021-03-24 20:12:52,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:52,887 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529511897] [2021-03-24 20:12:52,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:52,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:52,954 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:52,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:52,955 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:52,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:52,963 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:52,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:52,977 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:12:52,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:52,992 INFO L142 QuantifierPusher]: treesize reduction 28, result has 56.3 percent of original size [2021-03-24 20:12:52,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:12:53,015 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:12:53,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:53,048 INFO L142 QuantifierPusher]: treesize reduction 31, result has 68.4 percent of original size [2021-03-24 20:12:53,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:12:53,093 INFO L142 QuantifierPusher]: treesize reduction 28, result has 65.4 percent of original size [2021-03-24 20:12:53,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:53,094 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:12:53,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:53,120 INFO L142 QuantifierPusher]: treesize reduction 15, result has 66.7 percent of original size [2021-03-24 20:12:53,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:12:53,145 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:12:53,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:53,189 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.9 percent of original size [2021-03-24 20:12:53,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:53,233 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:12:53,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:12:53,261 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.6 percent of original size [2021-03-24 20:12:53,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:12:53,277 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:12:53,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:53,299 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:12:53,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:53,322 INFO L142 QuantifierPusher]: treesize reduction 22, result has 67.2 percent of original size [2021-03-24 20:12:53,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:12:53,361 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:12:53,361 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:12:53,398 INFO L142 QuantifierPusher]: treesize reduction 47, result has 41.3 percent of original size [2021-03-24 20:12:53,399 INFO L147 QuantifierPusher]: treesize reduction 6, result has 81.8 percent of original size 27 [2021-03-24 20:12:53,435 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:12:53,436 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:12:53,481 INFO L142 QuantifierPusher]: treesize reduction 22, result has 51.1 percent of original size [2021-03-24 20:12:53,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:53,505 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:12:53,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:12:53,525 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:53,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:53,526 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:12:53,526 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:53,550 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:12:53,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:12:53,576 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:53,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:53,600 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:53,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:53,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:53,623 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529511897] [2021-03-24 20:12:53,623 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:53,623 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:12:53,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156759735] [2021-03-24 20:12:53,623 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:12:53,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:53,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:12:53,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=489, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:12:53,625 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:53,626 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 317 places, 340 transitions, 5470 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:53,626 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:53,626 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:53,626 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:54,473 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 64 [2021-03-24 20:12:54,767 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2021-03-24 20:12:54,959 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2021-03-24 20:12:55,178 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-03-24 20:12:56,092 INFO L129 PetriNetUnfolder]: 620/2337 cut-off events. [2021-03-24 20:12:56,093 INFO L130 PetriNetUnfolder]: For 41301/41324 co-relation queries the response was YES. [2021-03-24 20:12:56,112 INFO L84 FinitePrefix]: Finished finitePrefix Result has 16751 conditions, 2337 events. 620/2337 cut-off events. For 41301/41324 co-relation queries the response was YES. Maximal size of possible extension queue 235. Compared 22314 event pairs, 358 based on Foata normal form. 11/2313 useless extension candidates. Maximal degree in co-relation 16649. Up to 1774 conditions per place. [2021-03-24 20:12:56,117 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 248 selfloop transitions, 65 changer transitions 39/358 dead transitions. [2021-03-24 20:12:56,118 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 324 places, 358 transitions, 6356 flow [2021-03-24 20:12:56,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:56,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:56,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1610 transitions. [2021-03-24 20:12:56,119 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32174260591526777 [2021-03-24 20:12:56,119 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1610 transitions. [2021-03-24 20:12:56,119 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1610 transitions. [2021-03-24 20:12:56,120 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:56,120 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1610 transitions. [2021-03-24 20:12:56,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.44444444444444) internal successors, (1610), 18 states have internal predecessors, (1610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:56,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:56,122 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:56,122 INFO L185 Difference]: Start difference. First operand has 317 places, 340 transitions, 5470 flow. Second operand 18 states and 1610 transitions. [2021-03-24 20:12:56,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 324 places, 358 transitions, 6356 flow [2021-03-24 20:12:56,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 302 places, 358 transitions, 6174 flow, removed 14 selfloop flow, removed 22 redundant places. [2021-03-24 20:12:56,281 INFO L241 Difference]: Finished difference. Result has 304 places, 314 transitions, 5002 flow [2021-03-24 20:12:56,281 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5296, PETRI_DIFFERENCE_MINUEND_PLACES=285, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=340, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=275, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5002, PETRI_PLACES=304, PETRI_TRANSITIONS=314} [2021-03-24 20:12:56,281 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 238 predicate places. [2021-03-24 20:12:56,281 INFO L480 AbstractCegarLoop]: Abstraction has has 304 places, 314 transitions, 5002 flow [2021-03-24 20:12:56,281 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:56,281 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:56,281 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:56,281 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-03-24 20:12:56,282 INFO L428 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:56,282 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:56,282 INFO L82 PathProgramCache]: Analyzing trace with hash -388356031, now seen corresponding path program 50 times [2021-03-24 20:12:56,282 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:56,282 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661068712] [2021-03-24 20:12:56,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:56,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:56,344 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:56,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:56,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:56,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:56,355 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:56,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:56,376 INFO L142 QuantifierPusher]: treesize reduction 26, result has 57.4 percent of original size [2021-03-24 20:12:56,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:12:56,402 INFO L142 QuantifierPusher]: treesize reduction 34, result has 61.4 percent of original size [2021-03-24 20:12:56,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 20:12:56,442 INFO L142 QuantifierPusher]: treesize reduction 34, result has 70.2 percent of original size [2021-03-24 20:12:56,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 80 [2021-03-24 20:12:56,489 INFO L142 QuantifierPusher]: treesize reduction 12, result has 85.9 percent of original size [2021-03-24 20:12:56,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 73 [2021-03-24 20:12:56,555 INFO L142 QuantifierPusher]: treesize reduction 15, result has 77.9 percent of original size [2021-03-24 20:12:56,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:12:56,593 INFO L142 QuantifierPusher]: treesize reduction 15, result has 75.0 percent of original size [2021-03-24 20:12:56,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:12:56,629 INFO L142 QuantifierPusher]: treesize reduction 12, result has 84.0 percent of original size [2021-03-24 20:12:56,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:12:56,675 INFO L142 QuantifierPusher]: treesize reduction 12, result has 84.0 percent of original size [2021-03-24 20:12:56,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 63 [2021-03-24 20:12:56,726 INFO L142 QuantifierPusher]: treesize reduction 24, result has 69.6 percent of original size [2021-03-24 20:12:56,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:12:56,769 INFO L142 QuantifierPusher]: treesize reduction 24, result has 70.7 percent of original size [2021-03-24 20:12:56,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 58 [2021-03-24 20:12:56,786 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 20:12:56,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:12:56,801 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:12:56,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:56,840 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.6 percent of original size [2021-03-24 20:12:56,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:12:56,882 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 20:12:56,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:12:56,910 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:12:56,911 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:56,940 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:12:56,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:12:56,978 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:12:56,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:12:56,996 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:12:56,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:12:57,032 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 20:12:57,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:12:57,068 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 20:12:57,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:57,107 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:57,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:57,130 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:12:57,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:12:57,131 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:12:57,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:12:57,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:12:57,153 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661068712] [2021-03-24 20:12:57,153 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:12:57,153 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:12:57,153 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993815590] [2021-03-24 20:12:57,153 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:12:57,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:12:57,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:12:57,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=441, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:12:57,155 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:12:57,156 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 304 places, 314 transitions, 5002 flow. Second operand has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:57,156 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:12:57,156 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:12:57,156 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:12:57,814 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 55 [2021-03-24 20:12:58,013 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 57 [2021-03-24 20:12:59,395 INFO L129 PetriNetUnfolder]: 590/2241 cut-off events. [2021-03-24 20:12:59,396 INFO L130 PetriNetUnfolder]: For 36822/36845 co-relation queries the response was YES. [2021-03-24 20:12:59,413 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15795 conditions, 2241 events. 590/2241 cut-off events. For 36822/36845 co-relation queries the response was YES. Maximal size of possible extension queue 221. Compared 21428 event pairs, 282 based on Foata normal form. 13/2224 useless extension candidates. Maximal degree in co-relation 15699. Up to 1502 conditions per place. [2021-03-24 20:12:59,418 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 190 selfloop transitions, 119 changer transitions 31/346 dead transitions. [2021-03-24 20:12:59,418 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 346 transitions, 6121 flow [2021-03-24 20:12:59,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:12:59,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:12:59,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1614 transitions. [2021-03-24 20:12:59,420 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3225419664268585 [2021-03-24 20:12:59,420 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1614 transitions. [2021-03-24 20:12:59,420 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1614 transitions. [2021-03-24 20:12:59,420 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:12:59,420 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1614 transitions. [2021-03-24 20:12:59,421 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.66666666666667) internal successors, (1614), 18 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:59,423 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:59,423 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:59,423 INFO L185 Difference]: Start difference. First operand has 304 places, 314 transitions, 5002 flow. Second operand 18 states and 1614 transitions. [2021-03-24 20:12:59,423 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 346 transitions, 6121 flow [2021-03-24 20:12:59,558 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 346 transitions, 5771 flow, removed 30 selfloop flow, removed 24 redundant places. [2021-03-24 20:12:59,563 INFO L241 Difference]: Finished difference. Result has 280 places, 293 transitions, 4674 flow [2021-03-24 20:12:59,564 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4663, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=314, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=119, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4674, PETRI_PLACES=280, PETRI_TRANSITIONS=293} [2021-03-24 20:12:59,564 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 214 predicate places. [2021-03-24 20:12:59,564 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 293 transitions, 4674 flow [2021-03-24 20:12:59,564 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 86.56521739130434) internal successors, (1991), 23 states have internal predecessors, (1991), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:12:59,564 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:12:59,564 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:12:59,564 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-03-24 20:12:59,565 INFO L428 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:12:59,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:12:59,565 INFO L82 PathProgramCache]: Analyzing trace with hash 2064134641, now seen corresponding path program 51 times [2021-03-24 20:12:59,565 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:12:59,565 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090465207] [2021-03-24 20:12:59,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:12:59,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:12:59,638 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:59,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:12:59,639 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:12:59,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:12:59,650 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:12:59,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:59,675 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:12:59,675 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:12:59,703 INFO L142 QuantifierPusher]: treesize reduction 42, result has 51.7 percent of original size [2021-03-24 20:12:59,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:12:59,742 INFO L142 QuantifierPusher]: treesize reduction 30, result has 71.4 percent of original size [2021-03-24 20:12:59,743 INFO L147 QuantifierPusher]: treesize reduction 8, result has 89.3 percent of original size 67 [2021-03-24 20:12:59,793 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.1 percent of original size [2021-03-24 20:12:59,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:12:59,810 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 20:12:59,811 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:12:59,828 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:12:59,828 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.5 percent of original size 43 [2021-03-24 20:12:59,862 INFO L142 QuantifierPusher]: treesize reduction 21, result has 64.4 percent of original size [2021-03-24 20:12:59,862 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:12:59,894 INFO L142 QuantifierPusher]: treesize reduction 21, result has 64.4 percent of original size [2021-03-24 20:12:59,894 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:12:59,930 INFO L142 QuantifierPusher]: treesize reduction 21, result has 64.4 percent of original size [2021-03-24 20:12:59,931 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:12:59,964 INFO L142 QuantifierPusher]: treesize reduction 21, result has 65.6 percent of original size [2021-03-24 20:12:59,965 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.5 percent of original size 35 [2021-03-24 20:13:00,000 INFO L142 QuantifierPusher]: treesize reduction 45, result has 47.7 percent of original size [2021-03-24 20:13:00,000 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.7 percent of original size 38 [2021-03-24 20:13:00,037 INFO L142 QuantifierPusher]: treesize reduction 45, result has 44.4 percent of original size [2021-03-24 20:13:00,038 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size 33 [2021-03-24 20:13:00,053 INFO L142 QuantifierPusher]: treesize reduction 47, result has 39.0 percent of original size [2021-03-24 20:13:00,054 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.0 percent of original size 27 [2021-03-24 20:13:00,089 INFO L142 QuantifierPusher]: treesize reduction 45, result has 44.4 percent of original size [2021-03-24 20:13:00,090 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size 33 [2021-03-24 20:13:00,128 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 20:13:00,128 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.7 percent of original size 33 [2021-03-24 20:13:00,168 INFO L142 QuantifierPusher]: treesize reduction 28, result has 45.1 percent of original size [2021-03-24 20:13:00,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:00,194 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:13:00,194 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:00,213 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:00,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:00,214 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:13:00,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:00,239 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:00,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:00,266 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:13:00,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:00,291 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:00,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:00,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:00,323 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090465207] [2021-03-24 20:13:00,324 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:00,324 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:00,324 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [764181611] [2021-03-24 20:13:00,324 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:00,324 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:00,324 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:00,324 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:00,326 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:00,327 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 293 transitions, 4674 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:00,327 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:00,327 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:00,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:01,111 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 62 [2021-03-24 20:13:01,285 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 66 [2021-03-24 20:13:01,590 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-03-24 20:13:02,711 INFO L129 PetriNetUnfolder]: 608/2286 cut-off events. [2021-03-24 20:13:02,711 INFO L130 PetriNetUnfolder]: For 34817/34836 co-relation queries the response was YES. [2021-03-24 20:13:02,728 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15680 conditions, 2286 events. 608/2286 cut-off events. For 34817/34836 co-relation queries the response was YES. Maximal size of possible extension queue 229. Compared 21783 event pairs, 347 based on Foata normal form. 10/2261 useless extension candidates. Maximal degree in co-relation 15593. Up to 1803 conditions per place. [2021-03-24 20:13:02,733 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 229 selfloop transitions, 84 changer transitions 21/344 dead transitions. [2021-03-24 20:13:02,733 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 344 transitions, 6204 flow [2021-03-24 20:13:02,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:02,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:02,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2478 transitions. [2021-03-24 20:13:02,735 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4952038369304556 [2021-03-24 20:13:02,735 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2478 transitions. [2021-03-24 20:13:02,735 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2478 transitions. [2021-03-24 20:13:02,735 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:02,735 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2478 transitions. [2021-03-24 20:13:02,737 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.66666666666666) internal successors, (2478), 18 states have internal predecessors, (2478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:02,738 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:02,739 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:02,739 INFO L185 Difference]: Start difference. First operand has 280 places, 293 transitions, 4674 flow. Second operand 18 states and 2478 transitions. [2021-03-24 20:13:02,739 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 344 transitions, 6204 flow [2021-03-24 20:13:02,839 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 344 transitions, 5625 flow, removed 26 selfloop flow, removed 31 redundant places. [2021-03-24 20:13:02,844 INFO L241 Difference]: Finished difference. Result has 255 places, 310 transitions, 4771 flow [2021-03-24 20:13:02,844 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4191, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=293, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=209, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4771, PETRI_PLACES=255, PETRI_TRANSITIONS=310} [2021-03-24 20:13:02,844 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 189 predicate places. [2021-03-24 20:13:02,844 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 310 transitions, 4771 flow [2021-03-24 20:13:02,845 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:02,845 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:02,845 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:02,845 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-03-24 20:13:02,845 INFO L428 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:02,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:02,845 INFO L82 PathProgramCache]: Analyzing trace with hash 1802580325, now seen corresponding path program 52 times [2021-03-24 20:13:02,845 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:02,845 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667079070] [2021-03-24 20:13:02,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:02,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:02,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:02,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:02,908 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:02,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:02,918 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:02,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:02,939 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:02,939 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:02,967 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:13:02,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:03,028 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:13:03,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:03,075 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:13:03,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:03,104 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:13:03,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:03,132 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:13:03,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:03,171 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:13:03,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:03,210 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:03,210 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:03,245 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:03,246 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:03,284 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:13:03,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:13:03,332 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:13:03,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:13:03,349 INFO L142 QuantifierPusher]: treesize reduction 56, result has 57.6 percent of original size [2021-03-24 20:13:03,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:13:03,408 INFO L142 QuantifierPusher]: treesize reduction 61, result has 53.4 percent of original size [2021-03-24 20:13:03,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:13:03,466 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:13:03,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:13:03,532 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:13:03,533 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:03,573 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:13:03,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:03,595 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:13:03,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:13:03,632 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:13:03,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:03,672 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:13:03,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:13:03,695 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:03,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:03,719 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:03,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:03,720 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:03,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:03,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:03,744 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667079070] [2021-03-24 20:13:03,744 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:03,744 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:03,744 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [619659098] [2021-03-24 20:13:03,744 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:03,744 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:03,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:03,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:03,747 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:03,748 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 310 transitions, 4771 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:03,748 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:03,748 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:03,748 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:04,440 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 20:13:04,605 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-03-24 20:13:04,812 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-03-24 20:13:05,142 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2021-03-24 20:13:06,322 INFO L129 PetriNetUnfolder]: 605/2271 cut-off events. [2021-03-24 20:13:06,323 INFO L130 PetriNetUnfolder]: For 29302/29321 co-relation queries the response was YES. [2021-03-24 20:13:06,335 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14861 conditions, 2271 events. 605/2271 cut-off events. For 29302/29321 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 21610 event pairs, 343 based on Foata normal form. 9/2243 useless extension candidates. Maximal degree in co-relation 14779. Up to 1782 conditions per place. [2021-03-24 20:13:06,339 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 224 selfloop transitions, 101 changer transitions 9/344 dead transitions. [2021-03-24 20:13:06,339 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 344 transitions, 5871 flow [2021-03-24 20:13:06,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:13:06,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:13:06,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2609 transitions. [2021-03-24 20:13:06,341 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49394168875425976 [2021-03-24 20:13:06,341 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2609 transitions. [2021-03-24 20:13:06,341 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2609 transitions. [2021-03-24 20:13:06,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:06,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2609 transitions. [2021-03-24 20:13:06,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.31578947368422) internal successors, (2609), 19 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:06,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:06,345 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:06,345 INFO L185 Difference]: Start difference. First operand has 255 places, 310 transitions, 4771 flow. Second operand 19 states and 2609 transitions. [2021-03-24 20:13:06,345 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 344 transitions, 5871 flow [2021-03-24 20:13:06,428 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 344 transitions, 5626 flow, removed 57 selfloop flow, removed 11 redundant places. [2021-03-24 20:13:06,433 INFO L241 Difference]: Finished difference. Result has 264 places, 323 transitions, 4996 flow [2021-03-24 20:13:06,433 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4528, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=87, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=213, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4996, PETRI_PLACES=264, PETRI_TRANSITIONS=323} [2021-03-24 20:13:06,433 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 198 predicate places. [2021-03-24 20:13:06,433 INFO L480 AbstractCegarLoop]: Abstraction has has 264 places, 323 transitions, 4996 flow [2021-03-24 20:13:06,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:06,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:06,434 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:06,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-03-24 20:13:06,434 INFO L428 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:06,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:06,434 INFO L82 PathProgramCache]: Analyzing trace with hash -485089129, now seen corresponding path program 53 times [2021-03-24 20:13:06,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:06,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864758223] [2021-03-24 20:13:06,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:06,496 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:06,496 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:06,497 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:06,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:06,504 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:06,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:06,519 INFO L142 QuantifierPusher]: treesize reduction 30, result has 43.4 percent of original size [2021-03-24 20:13:06,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:06,534 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 20:13:06,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:06,556 INFO L142 QuantifierPusher]: treesize reduction 30, result has 68.8 percent of original size [2021-03-24 20:13:06,557 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-03-24 20:13:06,613 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.1 percent of original size [2021-03-24 20:13:06,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:06,631 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 20:13:06,632 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:06,650 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 20:13:06,664 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:13:06,708 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:13:06,708 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:06,749 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:13:06,750 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:06,792 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:13:06,792 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:06,836 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 20:13:06,836 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:13:06,886 INFO L142 QuantifierPusher]: treesize reduction 45, result has 45.8 percent of original size [2021-03-24 20:13:06,887 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:13:06,938 INFO L142 QuantifierPusher]: treesize reduction 45, result has 42.3 percent of original size [2021-03-24 20:13:06,939 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-24 20:13:06,959 INFO L142 QuantifierPusher]: treesize reduction 47, result has 36.5 percent of original size [2021-03-24 20:13:06,960 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 20:13:06,999 INFO L142 QuantifierPusher]: treesize reduction 44, result has 37.1 percent of original size [2021-03-24 20:13:06,999 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-24 20:13:07,035 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.8 percent of original size [2021-03-24 20:13:07,036 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 20:13:07,076 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:13:07,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:07,103 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:07,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:07,123 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:07,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:07,143 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:13:07,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:07,169 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:07,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:07,196 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:13:07,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:07,221 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:07,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:07,245 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:07,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864758223] [2021-03-24 20:13:07,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:07,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:07,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198666558] [2021-03-24 20:13:07,246 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:07,246 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:07,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:07,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:07,248 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:07,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 264 places, 323 transitions, 4996 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:07,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:07,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:07,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:08,086 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 20:13:08,271 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-03-24 20:13:08,553 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 70 [2021-03-24 20:13:08,774 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-03-24 20:13:09,734 INFO L129 PetriNetUnfolder]: 608/2286 cut-off events. [2021-03-24 20:13:09,734 INFO L130 PetriNetUnfolder]: For 31516/31535 co-relation queries the response was YES. [2021-03-24 20:13:09,749 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15252 conditions, 2286 events. 608/2286 cut-off events. For 31516/31535 co-relation queries the response was YES. Maximal size of possible extension queue 233. Compared 21805 event pairs, 361 based on Foata normal form. 9/2263 useless extension candidates. Maximal degree in co-relation 15167. Up to 1830 conditions per place. [2021-03-24 20:13:09,754 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 237 selfloop transitions, 73 changer transitions 22/342 dead transitions. [2021-03-24 20:13:09,754 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 342 transitions, 5850 flow [2021-03-24 20:13:09,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:09,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:09,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 20:13:09,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 20:13:09,756 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 20:13:09,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 20:13:09,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:09,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 20:13:09,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.22222222222223) internal successors, (2470), 18 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:09,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:09,760 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:09,760 INFO L185 Difference]: Start difference. First operand has 264 places, 323 transitions, 4996 flow. Second operand 18 states and 2470 transitions. [2021-03-24 20:13:09,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 342 transitions, 5850 flow [2021-03-24 20:13:09,854 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 342 transitions, 5590 flow, removed 50 selfloop flow, removed 13 redundant places. [2021-03-24 20:13:09,858 INFO L241 Difference]: Finished difference. Result has 269 places, 316 transitions, 4786 flow [2021-03-24 20:13:09,859 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4756, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4786, PETRI_PLACES=269, PETRI_TRANSITIONS=316} [2021-03-24 20:13:09,859 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 203 predicate places. [2021-03-24 20:13:09,859 INFO L480 AbstractCegarLoop]: Abstraction has has 269 places, 316 transitions, 4786 flow [2021-03-24 20:13:09,859 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:09,859 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:09,859 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:09,859 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-03-24 20:13:09,859 INFO L428 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:09,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:09,860 INFO L82 PathProgramCache]: Analyzing trace with hash 76809263, now seen corresponding path program 54 times [2021-03-24 20:13:09,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:09,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002244081] [2021-03-24 20:13:09,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:09,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:09,921 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:09,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:09,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:09,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:09,934 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:09,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:09,959 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:13:09,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:13:09,989 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:13:09,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:10,031 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:13:10,032 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:13:10,085 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:13:10,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:10,103 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:13:10,103 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:10,121 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:13:10,121 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:13:10,154 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:13:10,155 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:13:10,190 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:13:10,190 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:10,222 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:13:10,222 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:10,255 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:10,255 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:13:10,293 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:13:10,293 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:13:10,308 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:13:10,308 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:13:10,343 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:13:10,344 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:13:10,380 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:13:10,380 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:13:10,422 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:13:10,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:13:10,447 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:13:10,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:10,474 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:10,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:10,493 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:13:10,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:10,518 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:10,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:10,545 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:13:10,546 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:10,570 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:13:10,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:10,571 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:10,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:10,595 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:10,595 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002244081] [2021-03-24 20:13:10,595 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:10,595 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:10,596 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1978513815] [2021-03-24 20:13:10,596 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:10,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:10,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:10,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:10,598 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:10,600 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 269 places, 316 transitions, 4786 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:10,600 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:10,600 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:10,600 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:11,388 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:13:11,699 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:13:11,884 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 20:13:12,942 INFO L129 PetriNetUnfolder]: 603/2271 cut-off events. [2021-03-24 20:13:12,943 INFO L130 PetriNetUnfolder]: For 31973/32008 co-relation queries the response was YES. [2021-03-24 20:13:12,959 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15153 conditions, 2271 events. 603/2271 cut-off events. For 31973/32008 co-relation queries the response was YES. Maximal size of possible extension queue 232. Compared 21669 event pairs, 359 based on Foata normal form. 11/2250 useless extension candidates. Maximal degree in co-relation 15066. Up to 1859 conditions per place. [2021-03-24 20:13:12,963 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 243 selfloop transitions, 66 changer transitions 19/338 dead transitions. [2021-03-24 20:13:12,963 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 338 transitions, 5688 flow [2021-03-24 20:13:12,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:12,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:12,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 20:13:12,965 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 20:13:12,965 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 20:13:12,965 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 20:13:12,966 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:12,966 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 20:13:12,967 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.11111111111111) internal successors, (2468), 18 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:12,969 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:12,969 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:12,969 INFO L185 Difference]: Start difference. First operand has 269 places, 316 transitions, 4786 flow. Second operand 18 states and 2468 transitions. [2021-03-24 20:13:12,969 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 338 transitions, 5688 flow [2021-03-24 20:13:13,073 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 263 places, 338 transitions, 5510 flow, removed 7 selfloop flow, removed 17 redundant places. [2021-03-24 20:13:13,077 INFO L241 Difference]: Finished difference. Result has 268 places, 315 transitions, 4759 flow [2021-03-24 20:13:13,077 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4612, PETRI_DIFFERENCE_MINUEND_PLACES=246, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=316, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4759, PETRI_PLACES=268, PETRI_TRANSITIONS=315} [2021-03-24 20:13:13,077 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 202 predicate places. [2021-03-24 20:13:13,077 INFO L480 AbstractCegarLoop]: Abstraction has has 268 places, 315 transitions, 4759 flow [2021-03-24 20:13:13,078 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:13,078 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:13,078 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:13,078 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-03-24 20:13:13,078 INFO L428 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:13,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:13,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1260896883, now seen corresponding path program 55 times [2021-03-24 20:13:13,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:13,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595706176] [2021-03-24 20:13:13,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:13,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:13,135 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:13,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:13,136 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:13,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:13,146 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:13,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:13,167 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:13:13,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:13:13,196 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:13:13,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:13,238 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:13:13,238 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:13:13,292 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:13:13,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:13,310 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:13:13,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:13,328 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:13:13,328 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:13:13,362 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:13:13,362 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:13:13,398 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:13:13,398 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:13,430 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:13:13,431 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:13,463 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:13,463 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:13:13,501 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:13:13,502 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:13:13,516 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:13:13,517 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:13:13,551 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:13:13,552 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:13:13,590 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:13:13,590 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:13:13,629 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:13:13,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:13:13,654 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:13:13,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:13,681 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:13,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:13,701 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:13:13,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:13,727 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:13,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:13,756 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:13:13,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:13,783 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:13:13,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:13,784 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:13,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:13,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:13,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595706176] [2021-03-24 20:13:13,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:13,810 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:13,810 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695718542] [2021-03-24 20:13:13,810 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:13,810 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:13,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:13,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:13,812 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:13,813 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 268 places, 315 transitions, 4759 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:13,813 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:13,813 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:13,813 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:14,638 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:13:14,946 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:13:16,218 INFO L129 PetriNetUnfolder]: 592/2219 cut-off events. [2021-03-24 20:13:16,218 INFO L130 PetriNetUnfolder]: For 31697/31716 co-relation queries the response was YES. [2021-03-24 20:13:16,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14948 conditions, 2219 events. 592/2219 cut-off events. For 31697/31716 co-relation queries the response was YES. Maximal size of possible extension queue 225. Compared 20986 event pairs, 339 based on Foata normal form. 9/2196 useless extension candidates. Maximal degree in co-relation 14860. Up to 1782 conditions per place. [2021-03-24 20:13:16,240 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 249 selfloop transitions, 71 changer transitions 21/351 dead transitions. [2021-03-24 20:13:16,240 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 351 transitions, 5864 flow [2021-03-24 20:13:16,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:16,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:16,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2477 transitions. [2021-03-24 20:13:16,242 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49500399680255797 [2021-03-24 20:13:16,242 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2477 transitions. [2021-03-24 20:13:16,242 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2477 transitions. [2021-03-24 20:13:16,242 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:16,242 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2477 transitions. [2021-03-24 20:13:16,244 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.61111111111111) internal successors, (2477), 18 states have internal predecessors, (2477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:16,245 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:16,246 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:16,246 INFO L185 Difference]: Start difference. First operand has 268 places, 315 transitions, 4759 flow. Second operand 18 states and 2477 transitions. [2021-03-24 20:13:16,246 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 351 transitions, 5864 flow [2021-03-24 20:13:16,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 351 transitions, 5704 flow, removed 20 selfloop flow, removed 13 redundant places. [2021-03-24 20:13:16,363 INFO L241 Difference]: Finished difference. Result has 271 places, 320 transitions, 4856 flow [2021-03-24 20:13:16,363 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4615, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=66, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4856, PETRI_PLACES=271, PETRI_TRANSITIONS=320} [2021-03-24 20:13:16,363 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 205 predicate places. [2021-03-24 20:13:16,363 INFO L480 AbstractCegarLoop]: Abstraction has has 271 places, 320 transitions, 4856 flow [2021-03-24 20:13:16,364 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:16,364 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:16,364 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:16,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-03-24 20:13:16,364 INFO L428 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:16,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:16,364 INFO L82 PathProgramCache]: Analyzing trace with hash 315764155, now seen corresponding path program 56 times [2021-03-24 20:13:16,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:16,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798716987] [2021-03-24 20:13:16,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:16,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:16,439 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:16,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:16,440 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:16,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:16,450 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:16,451 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:16,471 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:16,472 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:16,499 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:13:16,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:16,541 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:13:16,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:16,590 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:13:16,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:16,619 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:13:16,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:16,647 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.1 percent of original size [2021-03-24 20:13:16,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:13:16,689 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.1 percent of original size [2021-03-24 20:13:16,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:13:16,733 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:13:16,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:13:16,774 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:13:16,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:13:16,816 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.2 percent of original size [2021-03-24 20:13:16,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:13:16,871 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:13:16,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:13:16,888 INFO L142 QuantifierPusher]: treesize reduction 44, result has 56.0 percent of original size [2021-03-24 20:13:16,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:13:16,941 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:13:16,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:13:16,996 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 20:13:16,996 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:13:17,029 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:13:17,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:13:17,054 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:13:17,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:17,073 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:13:17,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:13:17,097 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:13:17,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:17,124 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:13:17,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:13:17,149 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:17,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:17,174 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:17,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:17,175 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:17,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:17,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:17,200 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798716987] [2021-03-24 20:13:17,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:17,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:17,200 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544865626] [2021-03-24 20:13:17,200 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:17,200 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:17,200 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:17,201 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:17,202 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:17,203 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 320 transitions, 4856 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:17,203 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:17,203 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:17,203 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:17,910 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 20:13:18,094 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-03-24 20:13:18,450 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2021-03-24 20:13:19,717 INFO L129 PetriNetUnfolder]: 580/2190 cut-off events. [2021-03-24 20:13:19,717 INFO L130 PetriNetUnfolder]: For 30553/30572 co-relation queries the response was YES. [2021-03-24 20:13:19,733 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14698 conditions, 2190 events. 580/2190 cut-off events. For 30553/30572 co-relation queries the response was YES. Maximal size of possible extension queue 223. Compared 20685 event pairs, 334 based on Foata normal form. 9/2167 useless extension candidates. Maximal degree in co-relation 14609. Up to 1780 conditions per place. [2021-03-24 20:13:19,738 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 249 selfloop transitions, 74 changer transitions 15/348 dead transitions. [2021-03-24 20:13:19,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 285 places, 348 transitions, 5877 flow [2021-03-24 20:13:19,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:13:19,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:13:19,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2604 transitions. [2021-03-24 20:13:19,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4929950776221128 [2021-03-24 20:13:19,740 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2604 transitions. [2021-03-24 20:13:19,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2604 transitions. [2021-03-24 20:13:19,740 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:19,740 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2604 transitions. [2021-03-24 20:13:19,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.05263157894737) internal successors, (2604), 19 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:19,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:19,744 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:19,744 INFO L185 Difference]: Start difference. First operand has 271 places, 320 transitions, 4856 flow. Second operand 19 states and 2604 transitions. [2021-03-24 20:13:19,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 285 places, 348 transitions, 5877 flow [2021-03-24 20:13:19,856 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 348 transitions, 5721 flow, removed 11 selfloop flow, removed 14 redundant places. [2021-03-24 20:13:19,861 INFO L241 Difference]: Finished difference. Result has 275 places, 323 transitions, 4934 flow [2021-03-24 20:13:19,861 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4712, PETRI_DIFFERENCE_MINUEND_PLACES=253, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=320, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=246, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4934, PETRI_PLACES=275, PETRI_TRANSITIONS=323} [2021-03-24 20:13:19,861 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 209 predicate places. [2021-03-24 20:13:19,861 INFO L480 AbstractCegarLoop]: Abstraction has has 275 places, 323 transitions, 4934 flow [2021-03-24 20:13:19,861 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:19,861 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:19,862 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:19,862 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-03-24 20:13:19,862 INFO L428 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:19,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:19,862 INFO L82 PathProgramCache]: Analyzing trace with hash -1741618801, now seen corresponding path program 57 times [2021-03-24 20:13:19,862 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:19,862 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980233494] [2021-03-24 20:13:19,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:19,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:19,934 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:19,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:19,935 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:19,935 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:19,947 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:19,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:19,972 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:13:19,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:20,002 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:13:20,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:20,040 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:13:20,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:13:20,087 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:13:20,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:20,105 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:13:20,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:20,123 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:13:20,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:13:20,156 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:13:20,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:13:20,191 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:13:20,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:13:20,222 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:13:20,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:13:20,255 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:13:20,255 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:13:20,292 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:13:20,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:13:20,306 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:13:20,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:13:20,341 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:13:20,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:13:20,377 INFO L142 QuantifierPusher]: treesize reduction 20, result has 56.5 percent of original size [2021-03-24 20:13:20,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:13:20,400 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:13:20,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:13:20,424 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:13:20,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:13:20,425 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:13:20,425 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:20,451 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:20,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:20,470 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:13:20,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:20,495 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:20,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:20,522 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:20,522 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:20,546 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:20,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:20,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:20,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980233494] [2021-03-24 20:13:20,570 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:20,570 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:20,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503044508] [2021-03-24 20:13:20,570 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:20,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:20,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:20,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:20,573 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:20,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 275 places, 323 transitions, 4934 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:20,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:20,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:20,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:21,394 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:13:21,641 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 20:13:22,899 INFO L129 PetriNetUnfolder]: 565/2149 cut-off events. [2021-03-24 20:13:22,899 INFO L130 PetriNetUnfolder]: For 31305/31326 co-relation queries the response was YES. [2021-03-24 20:13:22,915 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14601 conditions, 2149 events. 565/2149 cut-off events. For 31305/31326 co-relation queries the response was YES. Maximal size of possible extension queue 215. Compared 20231 event pairs, 293 based on Foata normal form. 10/2132 useless extension candidates. Maximal degree in co-relation 14512. Up to 1565 conditions per place. [2021-03-24 20:13:22,919 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 216 selfloop transitions, 123 changer transitions 23/372 dead transitions. [2021-03-24 20:13:22,920 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 289 places, 372 transitions, 6383 flow [2021-03-24 20:13:22,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:22,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:22,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2482 transitions. [2021-03-24 20:13:22,922 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49600319744204635 [2021-03-24 20:13:22,922 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2482 transitions. [2021-03-24 20:13:22,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2482 transitions. [2021-03-24 20:13:22,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:22,922 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2482 transitions. [2021-03-24 20:13:22,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.88888888888889) internal successors, (2482), 18 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:22,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:22,925 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:22,925 INFO L185 Difference]: Start difference. First operand has 275 places, 323 transitions, 4934 flow. Second operand 18 states and 2482 transitions. [2021-03-24 20:13:22,925 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 289 places, 372 transitions, 6383 flow [2021-03-24 20:13:23,049 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 372 transitions, 6182 flow, removed 22 selfloop flow, removed 14 redundant places. [2021-03-24 20:13:23,054 INFO L241 Difference]: Finished difference. Result has 280 places, 331 transitions, 5280 flow [2021-03-24 20:13:23,054 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4741, PETRI_DIFFERENCE_MINUEND_PLACES=258, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=115, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5280, PETRI_PLACES=280, PETRI_TRANSITIONS=331} [2021-03-24 20:13:23,054 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 214 predicate places. [2021-03-24 20:13:23,055 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 331 transitions, 5280 flow [2021-03-24 20:13:23,055 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:23,055 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:23,055 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:23,055 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-03-24 20:13:23,055 INFO L428 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:23,056 INFO L82 PathProgramCache]: Analyzing trace with hash -591137423, now seen corresponding path program 58 times [2021-03-24 20:13:23,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:23,056 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1423140832] [2021-03-24 20:13:23,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:23,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:23,113 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:23,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:23,114 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:23,114 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:23,124 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:23,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:23,145 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:23,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:23,173 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:13:23,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:23,215 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:13:23,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:23,264 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:13:23,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:13:23,322 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:13:23,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:23,323 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:13:23,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:23,343 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:13:23,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:23,363 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:13:23,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:23,386 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:13:23,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:23,410 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:13:23,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:23,432 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:13:23,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:23,455 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:13:23,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:23,482 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:13:23,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:23,497 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:13:23,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:23,542 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:13:23,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:23,569 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:13:23,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:13:23,594 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:13:23,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:13:23,620 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:13:23,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:23,639 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:23,639 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:23,665 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:13:23,665 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:23,691 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:23,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:23,719 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:23,719 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:23,745 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:23,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:23,746 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:23,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:23,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:23,778 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1423140832] [2021-03-24 20:13:23,779 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:23,779 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:13:23,779 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364099659] [2021-03-24 20:13:23,779 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:13:23,779 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:23,779 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:13:23,780 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:13:23,781 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:13:23,782 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 331 transitions, 5280 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:23,782 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:23,782 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:13:23,783 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:24,577 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:13:24,878 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:13:26,044 INFO L129 PetriNetUnfolder]: 549/2104 cut-off events. [2021-03-24 20:13:26,044 INFO L130 PetriNetUnfolder]: For 32889/32904 co-relation queries the response was YES. [2021-03-24 20:13:26,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14645 conditions, 2104 events. 549/2104 cut-off events. For 32889/32904 co-relation queries the response was YES. Maximal size of possible extension queue 212. Compared 19709 event pairs, 326 based on Foata normal form. 10/2083 useless extension candidates. Maximal degree in co-relation 14553. Up to 1711 conditions per place. [2021-03-24 20:13:26,065 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 259 selfloop transitions, 71 changer transitions 13/349 dead transitions. [2021-03-24 20:13:26,065 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 293 places, 349 transitions, 6129 flow [2021-03-24 20:13:26,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:26,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:26,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1608 transitions. [2021-03-24 20:13:26,067 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3213429256594724 [2021-03-24 20:13:26,067 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1608 transitions. [2021-03-24 20:13:26,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1608 transitions. [2021-03-24 20:13:26,068 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:26,068 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1608 transitions. [2021-03-24 20:13:26,069 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.33333333333333) internal successors, (1608), 18 states have internal predecessors, (1608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:26,070 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:26,071 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:26,071 INFO L185 Difference]: Start difference. First operand has 280 places, 331 transitions, 5280 flow. Second operand 18 states and 1608 transitions. [2021-03-24 20:13:26,071 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 293 places, 349 transitions, 6129 flow [2021-03-24 20:13:26,195 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 279 places, 349 transitions, 5899 flow, removed 23 selfloop flow, removed 14 redundant places. [2021-03-24 20:13:26,200 INFO L241 Difference]: Finished difference. Result has 281 places, 329 transitions, 5175 flow [2021-03-24 20:13:26,200 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5054, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=331, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=260, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5175, PETRI_PLACES=281, PETRI_TRANSITIONS=329} [2021-03-24 20:13:26,200 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 215 predicate places. [2021-03-24 20:13:26,201 INFO L480 AbstractCegarLoop]: Abstraction has has 281 places, 329 transitions, 5175 flow [2021-03-24 20:13:26,201 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:26,201 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:26,201 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:26,201 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-03-24 20:13:26,201 INFO L428 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:26,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:26,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1679738407, now seen corresponding path program 59 times [2021-03-24 20:13:26,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:26,202 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278464944] [2021-03-24 20:13:26,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:26,259 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:26,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:26,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:26,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:26,272 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:26,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:26,298 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 20:13:26,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:13:26,334 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:13:26,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:13:26,375 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.7 percent of original size [2021-03-24 20:13:26,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-24 20:13:26,426 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:13:26,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:13:26,485 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:13:26,486 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:26,496 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:13:26,497 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:26,516 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:13:26,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:26,537 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:13:26,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:26,560 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:13:26,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:26,584 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:13:26,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:26,606 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:13:26,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:26,629 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:13:26,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:26,656 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:13:26,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:26,671 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 20:13:26,671 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 20:13:26,713 INFO L142 QuantifierPusher]: treesize reduction 37, result has 50.0 percent of original size [2021-03-24 20:13:26,713 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:13:26,755 INFO L142 QuantifierPusher]: treesize reduction 42, result has 49.4 percent of original size [2021-03-24 20:13:26,755 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.4 percent of original size 35 [2021-03-24 20:13:26,796 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:13:26,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:13:26,822 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:13:26,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:26,841 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:13:26,841 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:13:26,866 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:13:26,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:26,891 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:26,892 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:26,919 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:26,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:26,945 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:26,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:26,946 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:26,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:26,971 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:26,971 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278464944] [2021-03-24 20:13:26,971 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:26,971 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:13:26,971 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982444525] [2021-03-24 20:13:26,971 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:13:26,971 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:26,972 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:13:26,972 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:13:26,974 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:13:26,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 329 transitions, 5175 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:26,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:26,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:13:26,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:27,799 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:13:27,974 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 66 [2021-03-24 20:13:28,277 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 68 [2021-03-24 20:13:29,533 INFO L129 PetriNetUnfolder]: 544/2078 cut-off events. [2021-03-24 20:13:29,533 INFO L130 PetriNetUnfolder]: For 30845/30860 co-relation queries the response was YES. [2021-03-24 20:13:29,545 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14235 conditions, 2078 events. 544/2078 cut-off events. For 30845/30860 co-relation queries the response was YES. Maximal size of possible extension queue 210. Compared 19334 event pairs, 313 based on Foata normal form. 9/2056 useless extension candidates. Maximal degree in co-relation 14144. Up to 1630 conditions per place. [2021-03-24 20:13:29,549 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 236 selfloop transitions, 89 changer transitions 18/349 dead transitions. [2021-03-24 20:13:29,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 297 places, 349 transitions, 6035 flow [2021-03-24 20:13:29,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:13:29,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:13:29,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1789 transitions. [2021-03-24 20:13:29,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32176258992805756 [2021-03-24 20:13:29,552 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1789 transitions. [2021-03-24 20:13:29,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1789 transitions. [2021-03-24 20:13:29,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:29,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1789 transitions. [2021-03-24 20:13:29,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.45) internal successors, (1789), 20 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:29,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:29,555 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:29,555 INFO L185 Difference]: Start difference. First operand has 281 places, 329 transitions, 5175 flow. Second operand 20 states and 1789 transitions. [2021-03-24 20:13:29,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 297 places, 349 transitions, 6035 flow [2021-03-24 20:13:29,665 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 349 transitions, 5880 flow, removed 6 selfloop flow, removed 17 redundant places. [2021-03-24 20:13:29,669 INFO L241 Difference]: Finished difference. Result has 281 places, 321 transitions, 5047 flow [2021-03-24 20:13:29,670 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5022, PETRI_DIFFERENCE_MINUEND_PLACES=261, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=89, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=240, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=5047, PETRI_PLACES=281, PETRI_TRANSITIONS=321} [2021-03-24 20:13:29,670 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 215 predicate places. [2021-03-24 20:13:29,670 INFO L480 AbstractCegarLoop]: Abstraction has has 281 places, 321 transitions, 5047 flow [2021-03-24 20:13:29,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:29,670 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:29,670 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:29,670 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-03-24 20:13:29,670 INFO L428 AbstractCegarLoop]: === Iteration 81 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:29,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:29,671 INFO L82 PathProgramCache]: Analyzing trace with hash -1167935541, now seen corresponding path program 60 times [2021-03-24 20:13:29,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:29,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160084880] [2021-03-24 20:13:29,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:29,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:29,745 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:29,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:29,746 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:29,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:29,758 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:29,759 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:29,783 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:29,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:29,822 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:13:29,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:29,876 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:13:29,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:29,925 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:13:29,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:29,955 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:13:29,955 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:29,983 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:13:29,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:30,023 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:30,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:30,060 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:30,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:30,096 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:30,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:30,136 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:13:30,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:13:30,185 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:13:30,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:13:30,203 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 20:13:30,203 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:13:30,250 INFO L142 QuantifierPusher]: treesize reduction 61, result has 53.4 percent of original size [2021-03-24 20:13:30,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:13:30,310 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:13:30,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:13:30,379 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:13:30,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:30,422 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:13:30,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:30,446 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:13:30,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:13:30,485 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:13:30,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:30,526 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:13:30,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:13:30,551 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:30,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:30,577 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:30,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:30,577 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:30,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:30,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:30,602 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160084880] [2021-03-24 20:13:30,602 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:30,602 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:30,602 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1122336992] [2021-03-24 20:13:30,603 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:30,603 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:30,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:30,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:30,604 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:30,605 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 281 places, 321 transitions, 5047 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:30,605 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:30,605 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:30,605 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:31,291 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 58 [2021-03-24 20:13:31,462 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-03-24 20:13:31,728 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:13:31,942 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-03-24 20:13:33,157 INFO L129 PetriNetUnfolder]: 551/2099 cut-off events. [2021-03-24 20:13:33,157 INFO L130 PetriNetUnfolder]: For 30361/30396 co-relation queries the response was YES. [2021-03-24 20:13:33,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14211 conditions, 2099 events. 551/2099 cut-off events. For 30361/30396 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 19662 event pairs, 314 based on Foata normal form. 11/2077 useless extension candidates. Maximal degree in co-relation 14122. Up to 1637 conditions per place. [2021-03-24 20:13:33,178 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 236 selfloop transitions, 97 changer transitions 9/352 dead transitions. [2021-03-24 20:13:33,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 352 transitions, 6150 flow [2021-03-24 20:13:33,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:13:33,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:13:33,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2607 transitions. [2021-03-24 20:13:33,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49356304430140097 [2021-03-24 20:13:33,180 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2607 transitions. [2021-03-24 20:13:33,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2607 transitions. [2021-03-24 20:13:33,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:33,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2607 transitions. [2021-03-24 20:13:33,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.21052631578948) internal successors, (2607), 19 states have internal predecessors, (2607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:33,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:33,184 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:33,184 INFO L185 Difference]: Start difference. First operand has 281 places, 321 transitions, 5047 flow. Second operand 19 states and 2607 transitions. [2021-03-24 20:13:33,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 352 transitions, 6150 flow [2021-03-24 20:13:33,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 275 places, 352 transitions, 5929 flow, removed 10 selfloop flow, removed 20 redundant places. [2021-03-24 20:13:33,297 INFO L241 Difference]: Finished difference. Result has 280 places, 332 transitions, 5270 flow [2021-03-24 20:13:33,297 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4834, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=85, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=227, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5270, PETRI_PLACES=280, PETRI_TRANSITIONS=332} [2021-03-24 20:13:33,297 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 214 predicate places. [2021-03-24 20:13:33,297 INFO L480 AbstractCegarLoop]: Abstraction has has 280 places, 332 transitions, 5270 flow [2021-03-24 20:13:33,297 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:33,297 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:33,297 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:33,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-03-24 20:13:33,298 INFO L428 AbstractCegarLoop]: === Iteration 82 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:33,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:33,298 INFO L82 PathProgramCache]: Analyzing trace with hash -585113089, now seen corresponding path program 61 times [2021-03-24 20:13:33,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:33,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1766657711] [2021-03-24 20:13:33,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:33,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:33,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:33,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:33,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:33,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:33,384 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:33,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:33,410 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:13:33,410 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:13:33,455 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:13:33,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:13:33,520 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:13:33,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:13:33,585 INFO L142 QuantifierPusher]: treesize reduction 17, result has 74.6 percent of original size [2021-03-24 20:13:33,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:13:33,611 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:13:33,611 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:13:33,633 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:13:33,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:13:33,655 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:13:33,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:13:33,695 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:13:33,695 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:13:33,737 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:13:33,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:13:33,775 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:13:33,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:13:33,814 INFO L142 QuantifierPusher]: treesize reduction 43, result has 55.7 percent of original size [2021-03-24 20:13:33,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 54 [2021-03-24 20:13:33,866 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.7 percent of original size [2021-03-24 20:13:33,867 INFO L147 QuantifierPusher]: treesize reduction 5, result has 93.5 percent of original size 72 [2021-03-24 20:13:33,931 INFO L142 QuantifierPusher]: treesize reduction 77, result has 48.0 percent of original size [2021-03-24 20:13:33,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:13:33,983 INFO L142 QuantifierPusher]: treesize reduction 72, result has 49.7 percent of original size [2021-03-24 20:13:33,984 INFO L147 QuantifierPusher]: treesize reduction 5, result has 93.0 percent of original size 66 [2021-03-24 20:13:34,008 INFO L142 QuantifierPusher]: treesize reduction 82, result has 42.3 percent of original size [2021-03-24 20:13:34,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 60 [2021-03-24 20:13:34,055 INFO L142 QuantifierPusher]: treesize reduction 72, result has 51.4 percent of original size [2021-03-24 20:13:34,055 INFO L147 QuantifierPusher]: treesize reduction 5, result has 93.4 percent of original size 71 [2021-03-24 20:13:34,124 INFO L142 QuantifierPusher]: treesize reduction 34, result has 53.4 percent of original size [2021-03-24 20:13:34,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:34,164 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:13:34,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:34,188 INFO L142 QuantifierPusher]: treesize reduction 44, result has 38.9 percent of original size [2021-03-24 20:13:34,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:34,223 INFO L142 QuantifierPusher]: treesize reduction 32, result has 51.5 percent of original size [2021-03-24 20:13:34,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:34,262 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:13:34,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:13:34,287 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:13:34,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:13:34,287 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:13:34,288 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:13:34,309 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:34,310 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1766657711] [2021-03-24 20:13:34,310 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:34,310 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:13:34,310 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1497161013] [2021-03-24 20:13:34,310 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:13:34,310 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:34,310 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:13:34,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=493, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:13:34,312 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:13:34,312 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 280 places, 332 transitions, 5270 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:34,312 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:34,312 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:13:34,312 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:35,020 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2021-03-24 20:13:35,193 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 64 [2021-03-24 20:13:35,408 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-03-24 20:13:35,698 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-03-24 20:13:36,090 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 73 [2021-03-24 20:13:36,988 INFO L129 PetriNetUnfolder]: 550/2097 cut-off events. [2021-03-24 20:13:36,988 INFO L130 PetriNetUnfolder]: For 31180/31195 co-relation queries the response was YES. [2021-03-24 20:13:37,003 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14424 conditions, 2097 events. 550/2097 cut-off events. For 31180/31195 co-relation queries the response was YES. Maximal size of possible extension queue 211. Compared 19573 event pairs, 319 based on Foata normal form. 9/2077 useless extension candidates. Maximal degree in co-relation 14333. Up to 1664 conditions per place. [2021-03-24 20:13:37,008 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 257 selfloop transitions, 64 changer transitions 29/356 dead transitions. [2021-03-24 20:13:37,008 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 356 transitions, 6222 flow [2021-03-24 20:13:37,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:37,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:37,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1615 transitions. [2021-03-24 20:13:37,010 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3227418065547562 [2021-03-24 20:13:37,010 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1615 transitions. [2021-03-24 20:13:37,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1615 transitions. [2021-03-24 20:13:37,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:37,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1615 transitions. [2021-03-24 20:13:37,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.72222222222223) internal successors, (1615), 18 states have internal predecessors, (1615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:37,013 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:37,013 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:37,013 INFO L185 Difference]: Start difference. First operand has 280 places, 332 transitions, 5270 flow. Second operand 18 states and 1615 transitions. [2021-03-24 20:13:37,013 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 356 transitions, 6222 flow [2021-03-24 20:13:37,135 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 282 places, 356 transitions, 5980 flow, removed 44 selfloop flow, removed 13 redundant places. [2021-03-24 20:13:37,139 INFO L241 Difference]: Finished difference. Result has 285 places, 323 transitions, 5000 flow [2021-03-24 20:13:37,140 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5030, PETRI_DIFFERENCE_MINUEND_PLACES=265, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=332, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=268, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5000, PETRI_PLACES=285, PETRI_TRANSITIONS=323} [2021-03-24 20:13:37,140 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 219 predicate places. [2021-03-24 20:13:37,140 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 323 transitions, 5000 flow [2021-03-24 20:13:37,140 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:37,140 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:37,140 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:37,140 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-03-24 20:13:37,140 INFO L428 AbstractCegarLoop]: === Iteration 83 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:37,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:37,141 INFO L82 PathProgramCache]: Analyzing trace with hash -1995163653, now seen corresponding path program 62 times [2021-03-24 20:13:37,141 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:37,141 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658072447] [2021-03-24 20:13:37,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:37,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:37,204 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:37,205 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:37,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:37,215 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:37,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:37,237 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:37,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:37,265 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:13:37,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:37,308 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:13:37,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:37,357 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:13:37,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:13:37,416 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:13:37,416 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:37,417 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:13:37,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:37,437 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:13:37,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:37,457 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:13:37,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:37,480 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:13:37,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:37,505 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:13:37,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:37,527 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:13:37,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:37,550 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:13:37,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:37,578 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:13:37,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:37,593 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:13:37,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:37,619 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:13:37,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:37,647 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:13:37,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:13:37,672 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:13:37,673 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:13:37,699 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:13:37,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:37,718 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:13:37,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:13:37,743 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:13:37,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:37,769 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:37,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:37,798 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:37,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:37,825 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:37,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:37,825 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:37,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:37,851 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:37,851 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658072447] [2021-03-24 20:13:37,851 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:37,851 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:13:37,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853583613] [2021-03-24 20:13:37,851 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:13:37,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:37,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:13:37,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:13:37,854 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:13:37,854 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 323 transitions, 5000 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:37,854 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:37,855 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:13:37,855 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:38,696 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:13:39,013 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:13:40,219 INFO L129 PetriNetUnfolder]: 526/2011 cut-off events. [2021-03-24 20:13:40,219 INFO L130 PetriNetUnfolder]: For 30431/30446 co-relation queries the response was YES. [2021-03-24 20:13:40,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13825 conditions, 2011 events. 526/2011 cut-off events. For 30431/30446 co-relation queries the response was YES. Maximal size of possible extension queue 201. Compared 18638 event pairs, 311 based on Foata normal form. 9/1991 useless extension candidates. Maximal degree in co-relation 13732. Up to 1646 conditions per place. [2021-03-24 20:13:40,238 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 252 selfloop transitions, 67 changer transitions 13/338 dead transitions. [2021-03-24 20:13:40,238 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 298 places, 338 transitions, 5811 flow [2021-03-24 20:13:40,239 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:13:40,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:13:40,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1693 transitions. [2021-03-24 20:13:40,240 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3205225293449451 [2021-03-24 20:13:40,240 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1693 transitions. [2021-03-24 20:13:40,240 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1693 transitions. [2021-03-24 20:13:40,240 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:40,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1693 transitions. [2021-03-24 20:13:40,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 89.10526315789474) internal successors, (1693), 19 states have internal predecessors, (1693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:40,243 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:40,243 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:40,243 INFO L185 Difference]: Start difference. First operand has 285 places, 323 transitions, 5000 flow. Second operand 19 states and 1693 transitions. [2021-03-24 20:13:40,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 298 places, 338 transitions, 5811 flow [2021-03-24 20:13:40,353 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 338 transitions, 5673 flow, removed 7 selfloop flow, removed 13 redundant places. [2021-03-24 20:13:40,358 INFO L241 Difference]: Finished difference. Result has 286 places, 318 transitions, 4925 flow [2021-03-24 20:13:40,358 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4864, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=323, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=67, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=256, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=4925, PETRI_PLACES=286, PETRI_TRANSITIONS=318} [2021-03-24 20:13:40,358 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 220 predicate places. [2021-03-24 20:13:40,358 INFO L480 AbstractCegarLoop]: Abstraction has has 286 places, 318 transitions, 4925 flow [2021-03-24 20:13:40,358 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:40,358 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:40,358 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:40,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-03-24 20:13:40,358 INFO L428 AbstractCegarLoop]: === Iteration 84 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:40,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:40,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1020272519, now seen corresponding path program 63 times [2021-03-24 20:13:40,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:40,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [137230458] [2021-03-24 20:13:40,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:40,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:40,422 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:40,422 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:40,423 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:40,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:40,435 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:40,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:40,461 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:40,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:40,499 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.8 percent of original size [2021-03-24 20:13:40,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:40,549 INFO L142 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size [2021-03-24 20:13:40,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:40,599 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:13:40,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:40,617 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:13:40,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:40,636 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.2 percent of original size [2021-03-24 20:13:40,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:13:40,660 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.2 percent of original size [2021-03-24 20:13:40,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:13:40,687 INFO L142 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size [2021-03-24 20:13:40,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:13:40,711 INFO L142 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size [2021-03-24 20:13:40,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:13:40,736 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 20:13:40,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:13:40,779 INFO L142 QuantifierPusher]: treesize reduction 68, result has 42.9 percent of original size [2021-03-24 20:13:40,780 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:40,827 INFO L142 QuantifierPusher]: treesize reduction 68, result has 40.4 percent of original size [2021-03-24 20:13:40,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:13:40,846 INFO L142 QuantifierPusher]: treesize reduction 73, result has 35.4 percent of original size [2021-03-24 20:13:40,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:40,890 INFO L142 QuantifierPusher]: treesize reduction 69, result has 42.5 percent of original size [2021-03-24 20:13:40,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:40,941 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:13:40,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:13:40,967 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:13:40,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:40,986 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:13:40,986 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:13:41,010 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:13:41,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:41,039 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:41,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:41,067 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:41,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:41,067 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:41,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:41,093 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:41,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:41,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:41,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [137230458] [2021-03-24 20:13:41,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:41,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:41,118 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [621630272] [2021-03-24 20:13:41,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:41,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:41,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:41,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:41,120 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:41,122 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 286 places, 318 transitions, 4925 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:41,122 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:41,122 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:41,122 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:41,853 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:13:42,044 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 64 [2021-03-24 20:13:42,259 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-03-24 20:13:42,566 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 70 [2021-03-24 20:13:43,718 INFO L129 PetriNetUnfolder]: 539/2052 cut-off events. [2021-03-24 20:13:43,718 INFO L130 PetriNetUnfolder]: For 29839/29854 co-relation queries the response was YES. [2021-03-24 20:13:43,734 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13851 conditions, 2052 events. 539/2052 cut-off events. For 29839/29854 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 19115 event pairs, 304 based on Foata normal form. 9/2031 useless extension candidates. Maximal degree in co-relation 13760. Up to 1624 conditions per place. [2021-03-24 20:13:43,738 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 246 selfloop transitions, 84 changer transitions 9/349 dead transitions. [2021-03-24 20:13:43,738 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 349 transitions, 6046 flow [2021-03-24 20:13:43,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:13:43,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:13:43,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2609 transitions. [2021-03-24 20:13:43,740 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49394168875425976 [2021-03-24 20:13:43,740 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2609 transitions. [2021-03-24 20:13:43,740 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2609 transitions. [2021-03-24 20:13:43,741 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:43,741 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2609 transitions. [2021-03-24 20:13:43,742 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.31578947368422) internal successors, (2609), 19 states have internal predecessors, (2609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:43,744 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:43,744 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:43,744 INFO L185 Difference]: Start difference. First operand has 286 places, 318 transitions, 4925 flow. Second operand 19 states and 2609 transitions. [2021-03-24 20:13:43,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 349 transitions, 6046 flow [2021-03-24 20:13:43,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 280 places, 349 transitions, 5884 flow, removed 11 selfloop flow, removed 20 redundant places. [2021-03-24 20:13:43,867 INFO L241 Difference]: Finished difference. Result has 285 places, 328 transitions, 5173 flow [2021-03-24 20:13:43,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4773, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=318, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=237, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5173, PETRI_PLACES=285, PETRI_TRANSITIONS=328} [2021-03-24 20:13:43,867 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 219 predicate places. [2021-03-24 20:13:43,867 INFO L480 AbstractCegarLoop]: Abstraction has has 285 places, 328 transitions, 5173 flow [2021-03-24 20:13:43,868 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:43,868 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:43,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:43,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-03-24 20:13:43,868 INFO L428 AbstractCegarLoop]: === Iteration 85 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:43,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:43,868 INFO L82 PathProgramCache]: Analyzing trace with hash -1742726815, now seen corresponding path program 64 times [2021-03-24 20:13:43,869 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:43,869 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793169238] [2021-03-24 20:13:43,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:43,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:43,931 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:43,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:43,932 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:43,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:43,942 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:43,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:43,963 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:13:43,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:43,987 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:13:43,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:44,026 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:13:44,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:13:44,074 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:13:44,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:44,092 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:13:44,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:44,111 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:13:44,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:13:44,145 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:13:44,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:13:44,181 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:13:44,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:13:44,213 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:13:44,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:13:44,247 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:13:44,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:13:44,285 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:13:44,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:13:44,299 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:13:44,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:13:44,335 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:13:44,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:13:44,373 INFO L142 QuantifierPusher]: treesize reduction 20, result has 56.5 percent of original size [2021-03-24 20:13:44,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:13:44,398 INFO L142 QuantifierPusher]: treesize reduction 30, result has 44.4 percent of original size [2021-03-24 20:13:44,398 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:13:44,432 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:13:44,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:44,458 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:13:44,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:44,479 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:44,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:44,480 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:13:44,480 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:44,506 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:13:44,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:44,534 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:44,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:44,559 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:44,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:44,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:44,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793169238] [2021-03-24 20:13:44,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:44,584 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:44,584 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538960010] [2021-03-24 20:13:44,584 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:44,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:44,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:44,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:44,587 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:44,588 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 285 places, 328 transitions, 5173 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:44,589 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:44,589 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:44,589 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:45,463 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:13:45,705 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 20:13:47,036 INFO L129 PetriNetUnfolder]: 539/2066 cut-off events. [2021-03-24 20:13:47,036 INFO L130 PetriNetUnfolder]: For 31940/31955 co-relation queries the response was YES. [2021-03-24 20:13:47,052 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14171 conditions, 2066 events. 539/2066 cut-off events. For 31940/31955 co-relation queries the response was YES. Maximal size of possible extension queue 214. Compared 19280 event pairs, 294 based on Foata normal form. 10/2048 useless extension candidates. Maximal degree in co-relation 14079. Up to 1541 conditions per place. [2021-03-24 20:13:47,057 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 216 selfloop transitions, 119 changer transitions 19/364 dead transitions. [2021-03-24 20:13:47,057 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 300 places, 364 transitions, 6370 flow [2021-03-24 20:13:47,058 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:47,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:47,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2482 transitions. [2021-03-24 20:13:47,059 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49600319744204635 [2021-03-24 20:13:47,059 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2482 transitions. [2021-03-24 20:13:47,059 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2482 transitions. [2021-03-24 20:13:47,059 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:47,059 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2482 transitions. [2021-03-24 20:13:47,060 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.88888888888889) internal successors, (2482), 18 states have internal predecessors, (2482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:47,062 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:47,063 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:47,063 INFO L185 Difference]: Start difference. First operand has 285 places, 328 transitions, 5173 flow. Second operand 18 states and 2482 transitions. [2021-03-24 20:13:47,063 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 300 places, 364 transitions, 6370 flow [2021-03-24 20:13:47,188 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 364 transitions, 6139 flow, removed 50 selfloop flow, removed 12 redundant places. [2021-03-24 20:13:47,195 INFO L241 Difference]: Finished difference. Result has 291 places, 329 transitions, 5255 flow [2021-03-24 20:13:47,195 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4946, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=328, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=117, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5255, PETRI_PLACES=291, PETRI_TRANSITIONS=329} [2021-03-24 20:13:47,196 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 225 predicate places. [2021-03-24 20:13:47,196 INFO L480 AbstractCegarLoop]: Abstraction has has 291 places, 329 transitions, 5255 flow [2021-03-24 20:13:47,196 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:47,196 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:47,196 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:47,196 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-03-24 20:13:47,197 INFO L428 AbstractCegarLoop]: === Iteration 86 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:47,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:47,197 INFO L82 PathProgramCache]: Analyzing trace with hash -548043863, now seen corresponding path program 65 times [2021-03-24 20:13:47,197 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:47,197 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118283308] [2021-03-24 20:13:47,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:47,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:47,266 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:47,266 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:47,267 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:47,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:47,274 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:47,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:47,291 INFO L142 QuantifierPusher]: treesize reduction 30, result has 43.4 percent of original size [2021-03-24 20:13:47,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:47,304 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.2 percent of original size [2021-03-24 20:13:47,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:47,325 INFO L142 QuantifierPusher]: treesize reduction 30, result has 68.8 percent of original size [2021-03-24 20:13:47,325 INFO L147 QuantifierPusher]: treesize reduction 8, result has 87.9 percent of original size 58 [2021-03-24 20:13:47,369 INFO L142 QuantifierPusher]: treesize reduction 17, result has 69.1 percent of original size [2021-03-24 20:13:47,370 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:47,409 INFO L142 QuantifierPusher]: treesize reduction 17, result has 66.7 percent of original size [2021-03-24 20:13:47,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:13:47,428 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 20:13:47,428 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:13:47,462 INFO L142 QuantifierPusher]: treesize reduction 21, result has 67.2 percent of original size [2021-03-24 20:13:47,463 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:13:47,499 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:13:47,500 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:47,532 INFO L142 QuantifierPusher]: treesize reduction 21, result has 62.5 percent of original size [2021-03-24 20:13:47,533 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:13:47,566 INFO L142 QuantifierPusher]: treesize reduction 21, result has 63.8 percent of original size [2021-03-24 20:13:47,566 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 20:13:47,601 INFO L142 QuantifierPusher]: treesize reduction 45, result has 45.8 percent of original size [2021-03-24 20:13:47,601 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:13:47,638 INFO L142 QuantifierPusher]: treesize reduction 45, result has 42.3 percent of original size [2021-03-24 20:13:47,638 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-24 20:13:47,653 INFO L142 QuantifierPusher]: treesize reduction 47, result has 36.5 percent of original size [2021-03-24 20:13:47,654 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 20:13:47,689 INFO L142 QuantifierPusher]: treesize reduction 44, result has 37.1 percent of original size [2021-03-24 20:13:47,689 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-24 20:13:47,725 INFO L142 QuantifierPusher]: treesize reduction 42, result has 46.8 percent of original size [2021-03-24 20:13:47,726 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 20:13:47,766 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:13:47,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:13:47,793 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:47,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:47,812 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:47,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:47,832 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:13:47,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:47,857 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:13:47,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:13:47,884 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:13:47,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:47,909 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:47,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:47,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:47,934 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118283308] [2021-03-24 20:13:47,934 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:47,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:47,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243602690] [2021-03-24 20:13:47,934 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:47,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:47,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:47,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:47,936 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:47,937 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 329 transitions, 5255 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:47,937 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:47,937 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:47,937 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:48,790 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 64 [2021-03-24 20:13:48,980 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-03-24 20:13:49,281 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 70 [2021-03-24 20:13:49,500 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 73 [2021-03-24 20:13:50,440 INFO L129 PetriNetUnfolder]: 518/1989 cut-off events. [2021-03-24 20:13:50,440 INFO L130 PetriNetUnfolder]: For 31487/31504 co-relation queries the response was YES. [2021-03-24 20:13:50,495 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13743 conditions, 1989 events. 518/1989 cut-off events. For 31487/31504 co-relation queries the response was YES. Maximal size of possible extension queue 204. Compared 18421 event pairs, 297 based on Foata normal form. 9/1971 useless extension candidates. Maximal degree in co-relation 13649. Up to 1596 conditions per place. [2021-03-24 20:13:50,499 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 253 selfloop transitions, 63 changer transitions 22/348 dead transitions. [2021-03-24 20:13:50,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 348 transitions, 6109 flow [2021-03-24 20:13:50,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:13:50,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:13:50,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 20:13:50,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 20:13:50,502 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 20:13:50,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 20:13:50,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:50,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 20:13:50,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.22222222222223) internal successors, (2470), 18 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:50,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:50,505 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:50,505 INFO L185 Difference]: Start difference. First operand has 291 places, 329 transitions, 5255 flow. Second operand 18 states and 2470 transitions. [2021-03-24 20:13:50,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 348 transitions, 6109 flow [2021-03-24 20:13:50,612 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 348 transitions, 5859 flow, removed 27 selfloop flow, removed 15 redundant places. [2021-03-24 20:13:50,617 INFO L241 Difference]: Finished difference. Result has 293 places, 322 transitions, 5000 flow [2021-03-24 20:13:50,617 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=5009, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=329, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=5000, PETRI_PLACES=293, PETRI_TRANSITIONS=322} [2021-03-24 20:13:50,617 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 227 predicate places. [2021-03-24 20:13:50,617 INFO L480 AbstractCegarLoop]: Abstraction has has 293 places, 322 transitions, 5000 flow [2021-03-24 20:13:50,617 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:50,617 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:50,617 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:50,618 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-03-24 20:13:50,618 INFO L428 AbstractCegarLoop]: === Iteration 87 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:50,618 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:50,618 INFO L82 PathProgramCache]: Analyzing trace with hash -1619528517, now seen corresponding path program 66 times [2021-03-24 20:13:50,618 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:50,618 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732107196] [2021-03-24 20:13:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:50,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:50,693 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:50,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:50,694 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:50,694 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:50,705 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:50,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:50,728 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:50,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:50,757 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:13:50,757 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:50,800 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:13:50,800 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:50,849 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.3 percent of original size [2021-03-24 20:13:50,850 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:13:50,908 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:13:50,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:50,909 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:13:50,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:50,941 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:13:50,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:50,971 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:13:50,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:51,012 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:13:51,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:51,052 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:51,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:51,090 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:51,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:51,130 INFO L142 QuantifierPusher]: treesize reduction 31, result has 62.2 percent of original size [2021-03-24 20:13:51,130 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:51,175 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.0 percent of original size [2021-03-24 20:13:51,176 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:13:51,241 INFO L142 QuantifierPusher]: treesize reduction 54, result has 58.5 percent of original size [2021-03-24 20:13:51,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:13:51,262 INFO L142 QuantifierPusher]: treesize reduction 59, result has 54.3 percent of original size [2021-03-24 20:13:51,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:13:51,322 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.0 percent of original size [2021-03-24 20:13:51,323 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:13:51,391 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:13:51,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:51,435 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:13:51,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:51,458 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:13:51,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:13:51,498 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 20:13:51,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:51,538 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 20:13:51,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:51,582 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:51,583 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:51,609 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:51,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:51,609 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:51,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:51,634 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732107196] [2021-03-24 20:13:51,634 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:51,634 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:13:51,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593922270] [2021-03-24 20:13:51,635 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:13:51,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:51,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:13:51,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:13:51,636 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:13:51,637 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 293 places, 322 transitions, 5000 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:51,637 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:51,637 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:13:51,637 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:52,344 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 20:13:52,519 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-03-24 20:13:52,735 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-03-24 20:13:53,050 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-03-24 20:13:54,335 INFO L129 PetriNetUnfolder]: 502/1939 cut-off events. [2021-03-24 20:13:54,335 INFO L130 PetriNetUnfolder]: For 30144/30161 co-relation queries the response was YES. [2021-03-24 20:13:54,349 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13355 conditions, 1939 events. 502/1939 cut-off events. For 30144/30161 co-relation queries the response was YES. Maximal size of possible extension queue 197. Compared 17867 event pairs, 288 based on Foata normal form. 9/1921 useless extension candidates. Maximal degree in co-relation 13261. Up to 1545 conditions per place. [2021-03-24 20:13:54,353 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 247 selfloop transitions, 73 changer transitions 17/343 dead transitions. [2021-03-24 20:13:54,353 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 306 places, 343 transitions, 5868 flow [2021-03-24 20:13:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:13:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:13:54,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1789 transitions. [2021-03-24 20:13:54,355 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32176258992805756 [2021-03-24 20:13:54,355 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1789 transitions. [2021-03-24 20:13:54,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1789 transitions. [2021-03-24 20:13:54,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:54,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1789 transitions. [2021-03-24 20:13:54,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.45) internal successors, (1789), 20 states have internal predecessors, (1789), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:54,358 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:54,358 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:54,358 INFO L185 Difference]: Start difference. First operand has 293 places, 322 transitions, 5000 flow. Second operand 20 states and 1789 transitions. [2021-03-24 20:13:54,358 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 306 places, 343 transitions, 5868 flow [2021-03-24 20:13:54,472 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 290 places, 343 transitions, 5721 flow, removed 8 selfloop flow, removed 16 redundant places. [2021-03-24 20:13:54,477 INFO L241 Difference]: Finished difference. Result has 291 places, 315 transitions, 4876 flow [2021-03-24 20:13:54,477 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4855, PETRI_DIFFERENCE_MINUEND_PLACES=271, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=322, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=249, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4876, PETRI_PLACES=291, PETRI_TRANSITIONS=315} [2021-03-24 20:13:54,477 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 225 predicate places. [2021-03-24 20:13:54,477 INFO L480 AbstractCegarLoop]: Abstraction has has 291 places, 315 transitions, 4876 flow [2021-03-24 20:13:54,477 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:54,477 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:54,477 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:54,478 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-03-24 20:13:54,478 INFO L428 AbstractCegarLoop]: === Iteration 88 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:54,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:54,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1147315287, now seen corresponding path program 67 times [2021-03-24 20:13:54,478 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:54,478 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840987698] [2021-03-24 20:13:54,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:54,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:54,557 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:54,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:54,558 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:54,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:54,571 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:54,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:54,596 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:13:54,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:13:54,636 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:13:54,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:54,692 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:13:54,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:13:54,746 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:13:54,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:54,777 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:13:54,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:54,806 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:13:54,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:54,847 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:13:54,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:54,888 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:54,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:54,925 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:13:54,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:54,966 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:13:54,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:13:55,017 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:13:55,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:13:55,034 INFO L142 QuantifierPusher]: treesize reduction 44, result has 54.6 percent of original size [2021-03-24 20:13:55,035 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:13:55,081 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:13:55,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:13:55,131 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:13:55,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:13:55,165 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:13:55,165 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:55,208 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:13:55,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:55,230 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:13:55,231 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:13:55,270 INFO L142 QuantifierPusher]: treesize reduction 27, result has 59.1 percent of original size [2021-03-24 20:13:55,270 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:13:55,312 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 20:13:55,312 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:55,356 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 20:13:55,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:55,383 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:55,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:55,409 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:55,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:55,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:55,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840987698] [2021-03-24 20:13:55,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:55,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:55,434 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500296193] [2021-03-24 20:13:55,434 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:55,434 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:55,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:55,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=450, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:55,436 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:55,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 291 places, 315 transitions, 4876 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:55,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:55,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:55,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:56,144 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 20:13:56,321 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-03-24 20:13:56,577 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2021-03-24 20:13:57,978 INFO L129 PetriNetUnfolder]: 501/1932 cut-off events. [2021-03-24 20:13:57,978 INFO L130 PetriNetUnfolder]: For 28764/28781 co-relation queries the response was YES. [2021-03-24 20:13:57,992 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13083 conditions, 1932 events. 501/1932 cut-off events. For 28764/28781 co-relation queries the response was YES. Maximal size of possible extension queue 199. Compared 17757 event pairs, 281 based on Foata normal form. 11/1917 useless extension candidates. Maximal degree in co-relation 12991. Up to 1474 conditions per place. [2021-03-24 20:13:57,996 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 211 selfloop transitions, 116 changer transitions 9/346 dead transitions. [2021-03-24 20:13:57,996 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 346 transitions, 5976 flow [2021-03-24 20:13:57,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:13:57,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:13:57,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2614 transitions. [2021-03-24 20:13:57,998 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49488829988640665 [2021-03-24 20:13:57,998 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2614 transitions. [2021-03-24 20:13:57,998 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2614 transitions. [2021-03-24 20:13:57,998 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:13:57,998 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2614 transitions. [2021-03-24 20:13:58,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.57894736842104) internal successors, (2614), 19 states have internal predecessors, (2614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:58,002 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:58,002 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:58,002 INFO L185 Difference]: Start difference. First operand has 291 places, 315 transitions, 4876 flow. Second operand 19 states and 2614 transitions. [2021-03-24 20:13:58,002 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 346 transitions, 5976 flow [2021-03-24 20:13:58,110 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 285 places, 346 transitions, 5795 flow, removed 11 selfloop flow, removed 20 redundant places. [2021-03-24 20:13:58,114 INFO L241 Difference]: Finished difference. Result has 290 places, 321 transitions, 5093 flow [2021-03-24 20:13:58,114 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4703, PETRI_DIFFERENCE_MINUEND_PLACES=267, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=109, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=5093, PETRI_PLACES=290, PETRI_TRANSITIONS=321} [2021-03-24 20:13:58,115 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 224 predicate places. [2021-03-24 20:13:58,115 INFO L480 AbstractCegarLoop]: Abstraction has has 290 places, 321 transitions, 5093 flow [2021-03-24 20:13:58,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:58,115 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:13:58,115 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:13:58,115 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-03-24 20:13:58,115 INFO L428 AbstractCegarLoop]: === Iteration 89 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:13:58,115 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:13:58,116 INFO L82 PathProgramCache]: Analyzing trace with hash 231498499, now seen corresponding path program 68 times [2021-03-24 20:13:58,116 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:13:58,116 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1361754413] [2021-03-24 20:13:58,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:13:58,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:13:58,192 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:58,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:13:58,193 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:13:58,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:13:58,205 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:13:58,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:58,231 INFO L142 QuantifierPusher]: treesize reduction 28, result has 49.1 percent of original size [2021-03-24 20:13:58,232 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:13:58,263 INFO L142 QuantifierPusher]: treesize reduction 28, result has 61.1 percent of original size [2021-03-24 20:13:58,264 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:58,314 INFO L142 QuantifierPusher]: treesize reduction 28, result has 68.9 percent of original size [2021-03-24 20:13:58,315 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:13:58,373 INFO L142 QuantifierPusher]: treesize reduction 15, result has 74.6 percent of original size [2021-03-24 20:13:58,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:58,404 INFO L142 QuantifierPusher]: treesize reduction 15, result has 72.7 percent of original size [2021-03-24 20:13:58,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:13:58,434 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 20:13:58,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:58,476 INFO L142 QuantifierPusher]: treesize reduction 19, result has 73.2 percent of original size [2021-03-24 20:13:58,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:13:58,517 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 20:13:58,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:58,556 INFO L142 QuantifierPusher]: treesize reduction 19, result has 69.8 percent of original size [2021-03-24 20:13:58,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:13:58,597 INFO L142 QuantifierPusher]: treesize reduction 34, result has 60.0 percent of original size [2021-03-24 20:13:58,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:13:58,643 INFO L142 QuantifierPusher]: treesize reduction 31, result has 61.7 percent of original size [2021-03-24 20:13:58,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:13:58,691 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:13:58,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:13:58,739 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:13:58,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:13:58,760 INFO L142 QuantifierPusher]: treesize reduction 39, result has 57.6 percent of original size [2021-03-24 20:13:58,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 53 [2021-03-24 20:13:58,820 INFO L142 QuantifierPusher]: treesize reduction 39, result has 66.7 percent of original size [2021-03-24 20:13:58,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-24 20:13:58,894 INFO L142 QuantifierPusher]: treesize reduction 29, result has 66.3 percent of original size [2021-03-24 20:13:58,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 57 [2021-03-24 20:13:58,945 INFO L142 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-03-24 20:13:58,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:13:58,971 INFO L142 QuantifierPusher]: treesize reduction 29, result has 61.8 percent of original size [2021-03-24 20:13:58,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:13:58,997 INFO L142 QuantifierPusher]: treesize reduction 52, result has 44.1 percent of original size [2021-03-24 20:13:58,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:13:59,048 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 20:13:59,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:13:59,094 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:13:59,094 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:13:59,120 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:13:59,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:13:59,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:13:59,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1361754413] [2021-03-24 20:13:59,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:13:59,146 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:13:59,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984698609] [2021-03-24 20:13:59,146 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:13:59,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:13:59,146 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:13:59,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:13:59,148 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:13:59,148 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 290 places, 321 transitions, 5093 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:13:59,148 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:13:59,149 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:13:59,149 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:13:59,871 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 20:14:00,055 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-03-24 20:14:00,331 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 66 [2021-03-24 20:14:00,610 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-03-24 20:14:00,872 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2021-03-24 20:14:01,808 INFO L129 PetriNetUnfolder]: 498/1908 cut-off events. [2021-03-24 20:14:01,809 INFO L130 PetriNetUnfolder]: For 29547/29564 co-relation queries the response was YES. [2021-03-24 20:14:01,823 INFO L84 FinitePrefix]: Finished finitePrefix Result has 13099 conditions, 1908 events. 498/1908 cut-off events. For 29547/29564 co-relation queries the response was YES. Maximal size of possible extension queue 196. Compared 17452 event pairs, 285 based on Foata normal form. 9/1892 useless extension candidates. Maximal degree in co-relation 13005. Up to 1533 conditions per place. [2021-03-24 20:14:01,827 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 250 selfloop transitions, 59 changer transitions 27/346 dead transitions. [2021-03-24 20:14:01,827 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 305 places, 346 transitions, 6072 flow [2021-03-24 20:14:01,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:01,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:01,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 20:14:01,829 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 20:14:01,829 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 20:14:01,829 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 20:14:01,829 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:01,829 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 20:14:01,830 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.22222222222223) internal successors, (2470), 18 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:01,832 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:01,832 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:01,832 INFO L185 Difference]: Start difference. First operand has 290 places, 321 transitions, 5093 flow. Second operand 18 states and 2470 transitions. [2021-03-24 20:14:01,833 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 305 places, 346 transitions, 6072 flow [2021-03-24 20:14:01,943 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 292 places, 346 transitions, 5761 flow, removed 45 selfloop flow, removed 13 redundant places. [2021-03-24 20:14:01,947 INFO L241 Difference]: Finished difference. Result has 298 places, 315 transitions, 4819 flow [2021-03-24 20:14:01,948 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4794, PETRI_DIFFERENCE_MINUEND_PLACES=275, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=321, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=262, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4819, PETRI_PLACES=298, PETRI_TRANSITIONS=315} [2021-03-24 20:14:01,948 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 232 predicate places. [2021-03-24 20:14:01,948 INFO L480 AbstractCegarLoop]: Abstraction has has 298 places, 315 transitions, 4819 flow [2021-03-24 20:14:01,948 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:01,948 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:01,948 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:01,948 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-03-24 20:14:01,948 INFO L428 AbstractCegarLoop]: === Iteration 90 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:01,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:01,949 INFO L82 PathProgramCache]: Analyzing trace with hash 1919658525, now seen corresponding path program 69 times [2021-03-24 20:14:01,949 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:01,949 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1763033911] [2021-03-24 20:14:01,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:01,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:02,023 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:02,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:02,024 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:02,025 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:02,036 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:02,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:02,061 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:02,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:02,087 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:02,088 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:02,145 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:02,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:02,201 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:02,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:02,220 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:02,221 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:02,239 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:02,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:02,275 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:02,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:02,307 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:02,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:02,340 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:02,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:02,375 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:14:02,376 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:02,415 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:14:02,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:14:02,431 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:14:02,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:14:02,467 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:14:02,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:02,494 INFO L142 QuantifierPusher]: treesize reduction 52, result has 34.2 percent of original size [2021-03-24 20:14:02,494 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:02,532 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:14:02,532 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:02,575 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:02,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:02,602 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:02,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:02,624 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:02,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:02,625 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:02,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:02,651 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:02,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:02,680 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:02,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:02,706 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:02,707 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:02,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:02,731 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1763033911] [2021-03-24 20:14:02,732 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:02,732 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:02,732 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [574894013] [2021-03-24 20:14:02,732 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:02,732 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:02,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:02,732 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:02,734 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:02,734 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 298 places, 315 transitions, 4819 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:02,734 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:02,735 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:02,735 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:03,571 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:14:03,809 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:14:04,035 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 67 [2021-03-24 20:14:04,270 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:14:05,130 INFO L129 PetriNetUnfolder]: 485/1868 cut-off events. [2021-03-24 20:14:05,131 INFO L130 PetriNetUnfolder]: For 28941/28951 co-relation queries the response was YES. [2021-03-24 20:14:05,145 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12748 conditions, 1868 events. 485/1868 cut-off events. For 28941/28951 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 17033 event pairs, 280 based on Foata normal form. 6/1850 useless extension candidates. Maximal degree in co-relation 12649. Up to 1480 conditions per place. [2021-03-24 20:14:05,149 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 239 selfloop transitions, 65 changer transitions 23/337 dead transitions. [2021-03-24 20:14:05,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 307 places, 337 transitions, 5725 flow [2021-03-24 20:14:05,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:05,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:05,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 20:14:05,151 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 20:14:05,151 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 20:14:05,151 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 20:14:05,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:05,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 20:14:05,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.11111111111111) internal successors, (2468), 18 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:05,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:05,155 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:05,155 INFO L185 Difference]: Start difference. First operand has 298 places, 315 transitions, 4819 flow. Second operand 18 states and 2468 transitions. [2021-03-24 20:14:05,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 307 places, 337 transitions, 5725 flow [2021-03-24 20:14:05,270 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 289 places, 337 transitions, 5569 flow, removed 12 selfloop flow, removed 18 redundant places. [2021-03-24 20:14:05,275 INFO L241 Difference]: Finished difference. Result has 292 places, 310 transitions, 4714 flow [2021-03-24 20:14:05,275 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4667, PETRI_DIFFERENCE_MINUEND_PLACES=272, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=315, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4714, PETRI_PLACES=292, PETRI_TRANSITIONS=310} [2021-03-24 20:14:05,275 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 226 predicate places. [2021-03-24 20:14:05,275 INFO L480 AbstractCegarLoop]: Abstraction has has 292 places, 310 transitions, 4714 flow [2021-03-24 20:14:05,276 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:05,276 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:05,276 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:05,276 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-03-24 20:14:05,276 INFO L428 AbstractCegarLoop]: === Iteration 91 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:05,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:05,276 INFO L82 PathProgramCache]: Analyzing trace with hash 226907209, now seen corresponding path program 70 times [2021-03-24 20:14:05,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:05,276 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [355134160] [2021-03-24 20:14:05,276 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:05,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:05,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:05,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:05,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:05,356 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:05,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:05,379 INFO L142 QuantifierPusher]: treesize reduction 20, result has 62.3 percent of original size [2021-03-24 20:14:05,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:05,406 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.4 percent of original size [2021-03-24 20:14:05,406 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:14:05,447 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.7 percent of original size [2021-03-24 20:14:05,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 78 [2021-03-24 20:14:05,499 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:14:05,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:14:05,560 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:14:05,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:14:05,570 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:14:05,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:05,591 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:14:05,591 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:05,611 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:14:05,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:14:05,639 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:14:05,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:14:05,665 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:14:05,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:14:05,688 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:14:05,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:14:05,712 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:14:05,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:14:05,739 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:14:05,739 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:05,755 INFO L142 QuantifierPusher]: treesize reduction 21, result has 57.1 percent of original size [2021-03-24 20:14:05,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:05,780 INFO L142 QuantifierPusher]: treesize reduction 37, result has 50.0 percent of original size [2021-03-24 20:14:05,781 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:14:05,824 INFO L142 QuantifierPusher]: treesize reduction 42, result has 49.4 percent of original size [2021-03-24 20:14:05,825 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.4 percent of original size 35 [2021-03-24 20:14:05,866 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:14:05,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:14:05,893 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:14:05,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:14:05,913 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:14:05,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:14:05,958 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:05,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:05,985 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:05,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:06,014 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:06,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:06,040 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:06,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:06,041 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:06,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:06,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:06,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [355134160] [2021-03-24 20:14:06,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:06,067 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:14:06,067 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327141897] [2021-03-24 20:14:06,067 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:14:06,067 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:06,067 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:14:06,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:14:06,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:14:06,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 292 places, 310 transitions, 4714 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:06,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:06,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:14:06,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:06,914 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:14:07,157 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:14:07,389 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:14:08,533 INFO L129 PetriNetUnfolder]: 469/1817 cut-off events. [2021-03-24 20:14:08,533 INFO L130 PetriNetUnfolder]: For 28070/28100 co-relation queries the response was YES. [2021-03-24 20:14:08,546 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12455 conditions, 1817 events. 469/1817 cut-off events. For 28070/28100 co-relation queries the response was YES. Maximal size of possible extension queue 186. Compared 16490 event pairs, 271 based on Foata normal form. 8/1799 useless extension candidates. Maximal degree in co-relation 12360. Up to 1419 conditions per place. [2021-03-24 20:14:08,549 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 224 selfloop transitions, 84 changer transitions 16/330 dead transitions. [2021-03-24 20:14:08,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 330 transitions, 5541 flow [2021-03-24 20:14:08,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:14:08,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:14:08,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1787 transitions. [2021-03-24 20:14:08,551 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3214028776978417 [2021-03-24 20:14:08,551 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1787 transitions. [2021-03-24 20:14:08,551 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1787 transitions. [2021-03-24 20:14:08,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:08,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1787 transitions. [2021-03-24 20:14:08,552 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.35) internal successors, (1787), 20 states have internal predecessors, (1787), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:08,554 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:08,555 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:08,555 INFO L185 Difference]: Start difference. First operand has 292 places, 310 transitions, 4714 flow. Second operand 20 states and 1787 transitions. [2021-03-24 20:14:08,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 330 transitions, 5541 flow [2021-03-24 20:14:08,652 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 287 places, 330 transitions, 5386 flow, removed 6 selfloop flow, removed 16 redundant places. [2021-03-24 20:14:08,656 INFO L241 Difference]: Finished difference. Result has 288 places, 304 transitions, 4630 flow [2021-03-24 20:14:08,656 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4561, PETRI_DIFFERENCE_MINUEND_PLACES=268, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=310, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=84, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4630, PETRI_PLACES=288, PETRI_TRANSITIONS=304} [2021-03-24 20:14:08,656 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 222 predicate places. [2021-03-24 20:14:08,656 INFO L480 AbstractCegarLoop]: Abstraction has has 288 places, 304 transitions, 4630 flow [2021-03-24 20:14:08,657 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:08,657 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:08,657 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:08,657 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-03-24 20:14:08,657 INFO L428 AbstractCegarLoop]: === Iteration 92 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:08,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:08,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1757361389, now seen corresponding path program 71 times [2021-03-24 20:14:08,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:08,657 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [4777534] [2021-03-24 20:14:08,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:08,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:08,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:08,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:08,726 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:08,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:08,738 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:08,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:08,763 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:14:08,764 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:14:08,801 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:14:08,802 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:14:08,857 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:14:08,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:14:08,933 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:14:08,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:14:09,015 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:14:09,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:14:09,017 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:14:09,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:09,040 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:14:09,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:09,061 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:14:09,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:14:09,084 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:14:09,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:14:09,116 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:14:09,116 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:14:09,139 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:14:09,139 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:14:09,163 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:14:09,164 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:14:09,191 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:14:09,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:09,207 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:14:09,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:09,233 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:14:09,233 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:09,261 INFO L142 QuantifierPusher]: treesize reduction 42, result has 49.4 percent of original size [2021-03-24 20:14:09,262 INFO L147 QuantifierPusher]: treesize reduction 6, result has 85.4 percent of original size 35 [2021-03-24 20:14:09,304 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:14:09,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:14:09,333 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:14:09,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:14:09,353 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:14:09,354 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:14:09,379 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:09,380 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:09,408 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:09,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:09,438 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:09,438 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:09,466 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:09,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:09,467 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:09,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:09,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:09,493 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [4777534] [2021-03-24 20:14:09,493 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:09,493 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:14:09,493 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209101675] [2021-03-24 20:14:09,493 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:14:09,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:09,494 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:14:09,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=494, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:14:09,495 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:14:09,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 288 places, 304 transitions, 4630 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:09,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:09,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:14:09,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:10,360 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:14:10,619 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:14:11,361 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 61 [2021-03-24 20:14:12,044 INFO L129 PetriNetUnfolder]: 464/1780 cut-off events. [2021-03-24 20:14:12,044 INFO L130 PetriNetUnfolder]: For 26528/26538 co-relation queries the response was YES. [2021-03-24 20:14:12,057 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12143 conditions, 1780 events. 464/1780 cut-off events. For 26528/26538 co-relation queries the response was YES. Maximal size of possible extension queue 182. Compared 15996 event pairs, 265 based on Foata normal form. 8/1771 useless extension candidates. Maximal degree in co-relation 12051. Up to 1376 conditions per place. [2021-03-24 20:14:12,061 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 200 selfloop transitions, 104 changer transitions 17/327 dead transitions. [2021-03-24 20:14:12,061 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 303 places, 327 transitions, 5486 flow [2021-03-24 20:14:12,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:14:12,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:14:12,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1793 transitions. [2021-03-24 20:14:12,063 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3224820143884892 [2021-03-24 20:14:12,063 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1793 transitions. [2021-03-24 20:14:12,063 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1793 transitions. [2021-03-24 20:14:12,063 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:12,063 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1793 transitions. [2021-03-24 20:14:12,064 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.65) internal successors, (1793), 20 states have internal predecessors, (1793), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:12,066 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:12,066 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:12,066 INFO L185 Difference]: Start difference. First operand has 288 places, 304 transitions, 4630 flow. Second operand 20 states and 1793 transitions. [2021-03-24 20:14:12,066 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 303 places, 327 transitions, 5486 flow [2021-03-24 20:14:12,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 281 places, 327 transitions, 5231 flow, removed 8 selfloop flow, removed 22 redundant places. [2021-03-24 20:14:12,164 INFO L241 Difference]: Finished difference. Result has 282 places, 297 transitions, 4482 flow [2021-03-24 20:14:12,165 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4378, PETRI_DIFFERENCE_MINUEND_PLACES=262, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=304, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=104, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=4482, PETRI_PLACES=282, PETRI_TRANSITIONS=297} [2021-03-24 20:14:12,165 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 216 predicate places. [2021-03-24 20:14:12,165 INFO L480 AbstractCegarLoop]: Abstraction has has 282 places, 297 transitions, 4482 flow [2021-03-24 20:14:12,165 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:12,165 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:12,165 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:12,165 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-03-24 20:14:12,165 INFO L428 AbstractCegarLoop]: === Iteration 93 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:12,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:12,166 INFO L82 PathProgramCache]: Analyzing trace with hash -148633377, now seen corresponding path program 72 times [2021-03-24 20:14:12,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:12,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354948229] [2021-03-24 20:14:12,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:12,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:12,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:12,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:12,227 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:12,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:12,238 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:12,238 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:12,260 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:12,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:12,284 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:12,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:12,324 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:12,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:12,372 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:12,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:12,390 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:12,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:12,409 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:12,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:12,443 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:12,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:12,482 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:12,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:12,516 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:12,517 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:12,550 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:14:12,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:12,590 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:14:12,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:14:12,605 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:14:12,606 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:12,631 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:14:12,632 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:14:12,678 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:14:12,679 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:14:12,725 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:14:12,726 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:12,768 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:12,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:12,795 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:12,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:12,816 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:12,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:12,817 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:12,817 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:12,842 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:12,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:12,870 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:12,870 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:12,896 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:12,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:12,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:12,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354948229] [2021-03-24 20:14:12,921 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:12,921 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:12,921 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [700891708] [2021-03-24 20:14:12,921 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:12,921 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:12,921 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:12,922 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:12,924 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:12,925 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 282 places, 297 transitions, 4482 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:12,925 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:12,925 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:12,926 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:13,808 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:14:14,055 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-03-24 20:14:14,323 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-03-24 20:14:14,580 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-03-24 20:14:15,435 INFO L129 PetriNetUnfolder]: 470/1796 cut-off events. [2021-03-24 20:14:15,436 INFO L130 PetriNetUnfolder]: For 25156/25166 co-relation queries the response was YES. [2021-03-24 20:14:15,446 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12022 conditions, 1796 events. 470/1796 cut-off events. For 25156/25166 co-relation queries the response was YES. Maximal size of possible extension queue 184. Compared 16176 event pairs, 275 based on Foata normal form. 6/1785 useless extension candidates. Maximal degree in co-relation 11933. Up to 1396 conditions per place. [2021-03-24 20:14:15,449 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 217 selfloop transitions, 62 changer transitions 31/320 dead transitions. [2021-03-24 20:14:15,449 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 295 places, 320 transitions, 5365 flow [2021-03-24 20:14:15,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:15,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:15,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2471 transitions. [2021-03-24 20:14:15,451 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4938049560351719 [2021-03-24 20:14:15,451 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2471 transitions. [2021-03-24 20:14:15,451 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2471 transitions. [2021-03-24 20:14:15,451 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:15,451 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2471 transitions. [2021-03-24 20:14:15,452 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.27777777777777) internal successors, (2471), 18 states have internal predecessors, (2471), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:15,454 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:15,455 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:15,455 INFO L185 Difference]: Start difference. First operand has 282 places, 297 transitions, 4482 flow. Second operand 18 states and 2471 transitions. [2021-03-24 20:14:15,455 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 295 places, 320 transitions, 5365 flow [2021-03-24 20:14:15,537 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 274 places, 320 transitions, 5132 flow, removed 7 selfloop flow, removed 21 redundant places. [2021-03-24 20:14:15,541 INFO L241 Difference]: Finished difference. Result has 278 places, 285 transitions, 4176 flow [2021-03-24 20:14:15,542 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4253, PETRI_DIFFERENCE_MINUEND_PLACES=257, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=297, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=235, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=4176, PETRI_PLACES=278, PETRI_TRANSITIONS=285} [2021-03-24 20:14:15,542 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 212 predicate places. [2021-03-24 20:14:15,542 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 285 transitions, 4176 flow [2021-03-24 20:14:15,542 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:15,542 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:15,542 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:15,542 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-03-24 20:14:15,542 INFO L428 AbstractCegarLoop]: === Iteration 94 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:15,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:15,543 INFO L82 PathProgramCache]: Analyzing trace with hash 198374347, now seen corresponding path program 73 times [2021-03-24 20:14:15,543 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:15,543 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537877371] [2021-03-24 20:14:15,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:15,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:15,602 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:15,603 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:15,603 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:15,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:15,614 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:15,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:15,636 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:15,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:15,660 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:15,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:15,700 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:15,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:15,748 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:15,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:15,767 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:15,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:15,785 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:15,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:15,819 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:15,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:15,851 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:15,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:15,884 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:15,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:15,918 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:14:15,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:15,958 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:14:15,959 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:14:15,974 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:14:15,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:16,000 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:14:16,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:16,027 INFO L142 QuantifierPusher]: treesize reduction 52, result has 34.2 percent of original size [2021-03-24 20:14:16,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:16,066 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:14:16,066 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:16,109 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:16,110 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:16,136 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:16,136 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:16,158 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:16,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:16,159 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:16,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:16,185 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:16,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:16,214 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:16,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:16,241 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:16,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:16,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:16,266 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537877371] [2021-03-24 20:14:16,266 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:16,266 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:16,266 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143762478] [2021-03-24 20:14:16,267 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:16,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:16,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:16,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:16,269 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:16,269 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 285 transitions, 4176 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:16,269 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:16,269 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:16,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:17,104 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:14:17,351 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-03-24 20:14:17,650 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-03-24 20:14:17,855 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2021-03-24 20:14:18,692 INFO L129 PetriNetUnfolder]: 442/1698 cut-off events. [2021-03-24 20:14:18,693 INFO L130 PetriNetUnfolder]: For 23299/23309 co-relation queries the response was YES. [2021-03-24 20:14:18,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11299 conditions, 1698 events. 442/1698 cut-off events. For 23299/23309 co-relation queries the response was YES. Maximal size of possible extension queue 172. Compared 15093 event pairs, 258 based on Foata normal form. 6/1687 useless extension candidates. Maximal degree in co-relation 11210. Up to 1314 conditions per place. [2021-03-24 20:14:18,705 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 202 selfloop transitions, 57 changer transitions 34/303 dead transitions. [2021-03-24 20:14:18,705 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 290 places, 303 transitions, 4925 flow [2021-03-24 20:14:18,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:18,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:18,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 20:14:18,707 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 20:14:18,707 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 20:14:18,707 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 20:14:18,707 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:18,708 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 20:14:18,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.11111111111111) internal successors, (2468), 18 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:18,711 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:18,711 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:18,711 INFO L185 Difference]: Start difference. First operand has 278 places, 285 transitions, 4176 flow. Second operand 18 states and 2468 transitions. [2021-03-24 20:14:18,711 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 290 places, 303 transitions, 4925 flow [2021-03-24 20:14:18,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 276 places, 303 transitions, 4768 flow, removed 17 selfloop flow, removed 14 redundant places. [2021-03-24 20:14:18,788 INFO L241 Difference]: Finished difference. Result has 278 places, 265 transitions, 3798 flow [2021-03-24 20:14:18,788 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=4023, PETRI_DIFFERENCE_MINUEND_PLACES=259, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=285, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=228, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3798, PETRI_PLACES=278, PETRI_TRANSITIONS=265} [2021-03-24 20:14:18,788 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 212 predicate places. [2021-03-24 20:14:18,789 INFO L480 AbstractCegarLoop]: Abstraction has has 278 places, 265 transitions, 3798 flow [2021-03-24 20:14:18,789 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:18,789 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:18,789 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:18,789 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-03-24 20:14:18,789 INFO L428 AbstractCegarLoop]: === Iteration 95 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:18,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:18,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1766654969, now seen corresponding path program 74 times [2021-03-24 20:14:18,789 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:18,789 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159602221] [2021-03-24 20:14:18,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:18,848 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:18,848 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:18,849 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:18,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:18,859 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:18,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:18,881 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:18,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:18,904 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:18,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:18,945 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:18,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:18,995 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:18,995 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:19,014 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:19,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:19,033 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:19,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:19,067 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:19,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:19,104 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:19,138 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:19,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:19,171 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:14:19,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:19,206 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:14:19,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:19,234 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:14:19,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:19,250 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:14:19,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:19,276 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:14:19,277 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:19,304 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:14:19,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:14:19,330 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:19,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:19,356 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:19,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:19,376 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:19,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:19,377 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:19,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:19,403 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:19,403 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:19,431 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:19,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:19,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:19,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:19,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:19,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159602221] [2021-03-24 20:14:19,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:19,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:19,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079325978] [2021-03-24 20:14:19,481 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:19,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:19,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:19,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:19,483 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:19,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 278 places, 265 transitions, 3798 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:19,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:19,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:19,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:20,381 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:14:20,577 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:14:20,804 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 20:14:21,841 INFO L129 PetriNetUnfolder]: 421/1629 cut-off events. [2021-03-24 20:14:21,841 INFO L130 PetriNetUnfolder]: For 21534/21542 co-relation queries the response was YES. [2021-03-24 20:14:21,851 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10699 conditions, 1629 events. 421/1629 cut-off events. For 21534/21542 co-relation queries the response was YES. Maximal size of possible extension queue 167. Compared 14373 event pairs, 246 based on Foata normal form. 6/1618 useless extension candidates. Maximal degree in co-relation 10611. Up to 1239 conditions per place. [2021-03-24 20:14:21,854 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 182 selfloop transitions, 67 changer transitions 28/287 dead transitions. [2021-03-24 20:14:21,854 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 284 places, 287 transitions, 4581 flow [2021-03-24 20:14:21,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:21,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:21,855 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 20:14:21,856 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 20:14:21,856 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 20:14:21,856 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 20:14:21,856 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:21,856 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 20:14:21,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.33333333333334) internal successors, (2472), 18 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:21,859 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:21,859 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:21,859 INFO L185 Difference]: Start difference. First operand has 278 places, 265 transitions, 3798 flow. Second operand 18 states and 2472 transitions. [2021-03-24 20:14:21,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 284 places, 287 transitions, 4581 flow [2021-03-24 20:14:21,929 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 287 transitions, 4414 flow, removed 16 selfloop flow, removed 18 redundant places. [2021-03-24 20:14:21,933 INFO L241 Difference]: Finished difference. Result has 271 places, 252 transitions, 3611 flow [2021-03-24 20:14:21,933 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3637, PETRI_DIFFERENCE_MINUEND_PLACES=249, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=265, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=198, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3611, PETRI_PLACES=271, PETRI_TRANSITIONS=252} [2021-03-24 20:14:21,933 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 205 predicate places. [2021-03-24 20:14:21,933 INFO L480 AbstractCegarLoop]: Abstraction has has 271 places, 252 transitions, 3611 flow [2021-03-24 20:14:21,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:21,934 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:21,934 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:21,934 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-03-24 20:14:21,934 INFO L428 AbstractCegarLoop]: === Iteration 96 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:21,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:21,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1772127531, now seen corresponding path program 75 times [2021-03-24 20:14:21,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:21,934 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427621466] [2021-03-24 20:14:21,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:21,990 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:21,990 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:21,991 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:21,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:22,001 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:22,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:22,022 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:22,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:22,045 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:22,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:22,084 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:22,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:22,132 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:22,132 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:22,150 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:22,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:22,169 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:22,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:22,203 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:22,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:22,240 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:22,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:22,273 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:22,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:22,306 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:14:22,307 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:22,341 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:14:22,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:22,369 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:14:22,369 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:14:22,417 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:14:22,418 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:14:22,436 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:14:22,437 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:14:22,481 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:14:22,482 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:22,524 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:22,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:22,550 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:22,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:22,570 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:22,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:22,571 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:22,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:22,597 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:22,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:22,625 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:22,625 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:22,650 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:22,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:22,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:22,674 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427621466] [2021-03-24 20:14:22,675 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:22,675 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:22,675 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1688026482] [2021-03-24 20:14:22,675 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:22,675 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:22,675 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:22,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:22,677 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:22,678 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 271 places, 252 transitions, 3611 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:22,678 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:22,678 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:22,678 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:23,567 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:14:23,770 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:14:23,989 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-03-24 20:14:24,214 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-03-24 20:14:25,012 INFO L129 PetriNetUnfolder]: 409/1597 cut-off events. [2021-03-24 20:14:25,013 INFO L130 PetriNetUnfolder]: For 21039/21045 co-relation queries the response was YES. [2021-03-24 20:14:25,023 INFO L84 FinitePrefix]: Finished finitePrefix Result has 10465 conditions, 1597 events. 409/1597 cut-off events. For 21039/21045 co-relation queries the response was YES. Maximal size of possible extension queue 163. Compared 14079 event pairs, 250 based on Foata normal form. 4/1584 useless extension candidates. Maximal degree in co-relation 10379. Up to 1261 conditions per place. [2021-03-24 20:14:25,026 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 175 selfloop transitions, 57 changer transitions 25/267 dead transitions. [2021-03-24 20:14:25,026 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 267 transitions, 4282 flow [2021-03-24 20:14:25,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:25,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:25,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2021-03-24 20:14:25,028 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2021-03-24 20:14:25,028 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2467 transitions. [2021-03-24 20:14:25,028 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2467 transitions. [2021-03-24 20:14:25,028 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:25,028 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2467 transitions. [2021-03-24 20:14:25,029 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.05555555555554) internal successors, (2467), 18 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:25,031 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:25,031 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:25,032 INFO L185 Difference]: Start difference. First operand has 271 places, 252 transitions, 3611 flow. Second operand 18 states and 2467 transitions. [2021-03-24 20:14:25,032 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 267 transitions, 4282 flow [2021-03-24 20:14:25,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 267 transitions, 4072 flow, removed 21 selfloop flow, removed 22 redundant places. [2021-03-24 20:14:25,101 INFO L241 Difference]: Finished difference. Result has 261 places, 239 transitions, 3319 flow [2021-03-24 20:14:25,101 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3414, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=57, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3319, PETRI_PLACES=261, PETRI_TRANSITIONS=239} [2021-03-24 20:14:25,101 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 195 predicate places. [2021-03-24 20:14:25,101 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 239 transitions, 3319 flow [2021-03-24 20:14:25,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:25,102 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:25,102 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:25,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-03-24 20:14:25,102 INFO L428 AbstractCegarLoop]: === Iteration 97 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:25,102 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:25,102 INFO L82 PathProgramCache]: Analyzing trace with hash -1662042271, now seen corresponding path program 76 times [2021-03-24 20:14:25,102 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:25,102 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1551396084] [2021-03-24 20:14:25,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:25,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:25,171 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:25,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:25,172 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:25,172 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:25,184 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:25,185 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:25,211 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:25,211 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:25,241 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:25,242 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:25,291 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:25,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:25,339 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:25,339 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:25,358 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:25,358 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:25,376 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:25,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:25,411 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:25,411 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:25,447 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:25,448 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:25,481 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:25,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:25,514 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:14:25,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:25,550 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:14:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:14:25,591 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:14:25,592 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:14:25,640 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:14:25,640 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:14:25,659 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:14:25,659 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:14:25,704 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:14:25,704 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:25,746 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:25,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:25,772 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:25,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:25,793 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:25,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:25,793 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:25,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:25,819 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:25,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:25,847 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:25,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:25,872 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:25,872 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:25,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:25,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1551396084] [2021-03-24 20:14:25,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:25,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:25,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739902126] [2021-03-24 20:14:25,900 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:25,900 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:25,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:25,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:25,903 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:25,904 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 239 transitions, 3319 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:25,904 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:25,904 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:25,905 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:26,785 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:14:26,967 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-03-24 20:14:27,167 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 20:14:27,394 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:14:28,165 INFO L129 PetriNetUnfolder]: 399/1568 cut-off events. [2021-03-24 20:14:28,165 INFO L130 PetriNetUnfolder]: For 18738/18744 co-relation queries the response was YES. [2021-03-24 20:14:28,174 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9964 conditions, 1568 events. 399/1568 cut-off events. For 18738/18744 co-relation queries the response was YES. Maximal size of possible extension queue 161. Compared 13746 event pairs, 247 based on Foata normal form. 4/1556 useless extension candidates. Maximal degree in co-relation 9884. Up to 1240 conditions per place. [2021-03-24 20:14:28,177 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 166 selfloop transitions, 54 changer transitions 24/254 dead transitions. [2021-03-24 20:14:28,177 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 254 transitions, 3960 flow [2021-03-24 20:14:28,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:28,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:28,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 20:14:28,179 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 20:14:28,179 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 20:14:28,179 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 20:14:28,179 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:28,179 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 20:14:28,181 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.0) internal successors, (2466), 18 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:28,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:28,183 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:28,183 INFO L185 Difference]: Start difference. First operand has 261 places, 239 transitions, 3319 flow. Second operand 18 states and 2466 transitions. [2021-03-24 20:14:28,183 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 254 transitions, 3960 flow [2021-03-24 20:14:28,235 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 254 transitions, 3739 flow, removed 38 selfloop flow, removed 28 redundant places. [2021-03-24 20:14:28,238 INFO L241 Difference]: Finished difference. Result has 243 places, 227 transitions, 3043 flow [2021-03-24 20:14:28,238 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3110, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=239, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3043, PETRI_PLACES=243, PETRI_TRANSITIONS=227} [2021-03-24 20:14:28,239 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 177 predicate places. [2021-03-24 20:14:28,239 INFO L480 AbstractCegarLoop]: Abstraction has has 243 places, 227 transitions, 3043 flow [2021-03-24 20:14:28,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:28,239 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:28,239 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:28,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-03-24 20:14:28,239 INFO L428 AbstractCegarLoop]: === Iteration 98 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:28,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:28,239 INFO L82 PathProgramCache]: Analyzing trace with hash 70240809, now seen corresponding path program 77 times [2021-03-24 20:14:28,239 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:28,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [888953515] [2021-03-24 20:14:28,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:28,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:28,291 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:28,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:28,292 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:28,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:28,303 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:28,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:28,324 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:28,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:28,347 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:28,348 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:28,387 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:28,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:28,435 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:28,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:28,455 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:28,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:28,474 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:28,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:28,509 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:28,510 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:28,548 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:28,548 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:28,586 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:28,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:28,620 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:14:28,620 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:28,656 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:14:28,656 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:28,685 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:14:28,685 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:28,701 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:14:28,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:28,728 INFO L142 QuantifierPusher]: treesize reduction 31, result has 46.6 percent of original size [2021-03-24 20:14:28,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:28,766 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:14:28,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:28,808 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:28,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:28,835 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:28,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:28,857 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:28,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:28,858 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:28,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:28,884 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:28,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:28,912 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:28,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:28,938 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:28,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:28,963 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:28,963 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [888953515] [2021-03-24 20:14:28,963 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:28,963 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:28,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [343361521] [2021-03-24 20:14:28,963 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:28,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:28,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:28,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:28,965 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:28,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 227 transitions, 3043 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:28,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:28,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:28,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:29,857 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:14:30,054 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:14:30,273 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 20:14:30,472 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-03-24 20:14:31,195 INFO L129 PetriNetUnfolder]: 384/1505 cut-off events. [2021-03-24 20:14:31,195 INFO L130 PetriNetUnfolder]: For 15433/15439 co-relation queries the response was YES. [2021-03-24 20:14:31,204 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9180 conditions, 1505 events. 384/1505 cut-off events. For 15433/15439 co-relation queries the response was YES. Maximal size of possible extension queue 153. Compared 13054 event pairs, 240 based on Foata normal form. 4/1491 useless extension candidates. Maximal degree in co-relation 9109. Up to 1188 conditions per place. [2021-03-24 20:14:31,206 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 152 selfloop transitions, 52 changer transitions 25/239 dead transitions. [2021-03-24 20:14:31,206 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 239 transitions, 3615 flow [2021-03-24 20:14:31,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:31,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:31,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 20:14:31,208 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 20:14:31,208 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 20:14:31,208 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 20:14:31,209 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:31,209 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 20:14:31,210 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.83333333333334) internal successors, (2463), 18 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:31,212 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:31,212 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:31,212 INFO L185 Difference]: Start difference. First operand has 243 places, 227 transitions, 3043 flow. Second operand 18 states and 2463 transitions. [2021-03-24 20:14:31,212 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 239 transitions, 3615 flow [2021-03-24 20:14:31,255 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 227 places, 239 transitions, 3456 flow, removed 22 selfloop flow, removed 21 redundant places. [2021-03-24 20:14:31,258 INFO L241 Difference]: Finished difference. Result has 229 places, 212 transitions, 2807 flow [2021-03-24 20:14:31,259 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2892, PETRI_DIFFERENCE_MINUEND_PLACES=210, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2807, PETRI_PLACES=229, PETRI_TRANSITIONS=212} [2021-03-24 20:14:31,259 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 163 predicate places. [2021-03-24 20:14:31,259 INFO L480 AbstractCegarLoop]: Abstraction has has 229 places, 212 transitions, 2807 flow [2021-03-24 20:14:31,259 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:31,259 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:31,260 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:31,260 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-03-24 20:14:31,260 INFO L428 AbstractCegarLoop]: === Iteration 99 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:31,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:31,260 INFO L82 PathProgramCache]: Analyzing trace with hash 1578587051, now seen corresponding path program 78 times [2021-03-24 20:14:31,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:31,260 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428361236] [2021-03-24 20:14:31,260 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:31,342 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:31,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:31,343 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:31,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:31,355 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:31,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:31,381 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:14:31,382 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:31,425 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:14:31,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:14:31,472 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:14:31,473 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:14:31,526 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:14:31,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:14:31,592 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:14:31,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:14:31,593 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:14:31,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:14:31,616 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:14:31,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:14:31,639 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:14:31,640 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:14:31,682 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:14:31,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:14:31,720 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:14:31,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:14:31,760 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:14:31,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:14:31,801 INFO L142 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-03-24 20:14:31,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:14:31,844 INFO L142 QuantifierPusher]: treesize reduction 49, result has 55.5 percent of original size [2021-03-24 20:14:31,844 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:14:31,893 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-03-24 20:14:31,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:14:31,917 INFO L142 QuantifierPusher]: treesize reduction 54, result has 48.1 percent of original size [2021-03-24 20:14:31,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:14:31,963 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-03-24 20:14:31,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:14:32,012 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:14:32,013 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:14:32,039 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:14:32,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:14:32,082 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:14:32,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:32,107 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:14:32,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:32,146 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:14:32,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:32,188 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:14:32,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:14:32,215 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:14:32,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:14:32,216 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:14:32,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:14:32,242 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:32,242 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428361236] [2021-03-24 20:14:32,242 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:32,242 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:14:32,242 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936272726] [2021-03-24 20:14:32,242 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:14:32,242 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:32,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:14:32,243 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:14:32,244 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:14:32,245 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 229 places, 212 transitions, 2807 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:32,245 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:32,245 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:14:32,245 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:32,981 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 58 [2021-03-24 20:14:33,209 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 61 [2021-03-24 20:14:33,423 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 66 [2021-03-24 20:14:33,661 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 68 [2021-03-24 20:14:34,136 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:14:34,514 INFO L129 PetriNetUnfolder]: 369/1441 cut-off events. [2021-03-24 20:14:34,514 INFO L130 PetriNetUnfolder]: For 13433/13459 co-relation queries the response was YES. [2021-03-24 20:14:34,521 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8627 conditions, 1441 events. 369/1441 cut-off events. For 13433/13459 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 12321 event pairs, 234 based on Foata normal form. 6/1427 useless extension candidates. Maximal degree in co-relation 8562. Up to 1170 conditions per place. [2021-03-24 20:14:34,524 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 145 selfloop transitions, 47 changer transitions 22/220 dead transitions. [2021-03-24 20:14:34,524 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 230 places, 220 transitions, 3300 flow [2021-03-24 20:14:34,524 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:34,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:34,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1598 transitions. [2021-03-24 20:14:34,526 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3193445243804956 [2021-03-24 20:14:34,526 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1598 transitions. [2021-03-24 20:14:34,526 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1598 transitions. [2021-03-24 20:14:34,526 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:34,526 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1598 transitions. [2021-03-24 20:14:34,527 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.77777777777777) internal successors, (1598), 18 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:34,529 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:34,529 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:34,529 INFO L185 Difference]: Start difference. First operand has 229 places, 212 transitions, 2807 flow. Second operand 18 states and 1598 transitions. [2021-03-24 20:14:34,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 230 places, 220 transitions, 3300 flow [2021-03-24 20:14:34,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 220 transitions, 3100 flow, removed 17 selfloop flow, removed 19 redundant places. [2021-03-24 20:14:34,567 INFO L241 Difference]: Finished difference. Result has 212 places, 196 transitions, 2559 flow [2021-03-24 20:14:34,567 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2612, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=47, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=165, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2559, PETRI_PLACES=212, PETRI_TRANSITIONS=196} [2021-03-24 20:14:34,567 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 146 predicate places. [2021-03-24 20:14:34,567 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 196 transitions, 2559 flow [2021-03-24 20:14:34,567 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:34,567 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:34,568 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:34,568 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-03-24 20:14:34,568 INFO L428 AbstractCegarLoop]: === Iteration 100 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:34,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:34,568 INFO L82 PathProgramCache]: Analyzing trace with hash 961552843, now seen corresponding path program 79 times [2021-03-24 20:14:34,568 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:34,568 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799004816] [2021-03-24 20:14:34,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:34,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:34,623 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:34,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:34,624 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:34,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:34,640 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:34,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:34,663 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:34,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:34,686 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:34,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:34,726 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:34,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:34,776 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:34,776 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:34,795 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:34,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:34,814 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:34,815 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:34,850 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:34,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:34,883 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:34,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:34,917 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:34,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:34,952 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:14:34,952 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:34,992 INFO L142 QuantifierPusher]: treesize reduction 50, result has 43.2 percent of original size [2021-03-24 20:14:34,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:35,032 INFO L142 QuantifierPusher]: treesize reduction 47, result has 44.7 percent of original size [2021-03-24 20:14:35,032 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:35,072 INFO L142 QuantifierPusher]: treesize reduction 47, result has 41.3 percent of original size [2021-03-24 20:14:35,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:35,091 INFO L142 QuantifierPusher]: treesize reduction 52, result has 34.2 percent of original size [2021-03-24 20:14:35,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:35,129 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:14:35,130 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:35,174 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:35,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:35,201 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:35,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:35,223 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:35,223 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:35,224 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:35,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:35,251 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:35,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:35,280 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:35,280 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:35,311 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:35,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:35,337 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:35,337 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799004816] [2021-03-24 20:14:35,337 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:35,337 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:35,337 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944902434] [2021-03-24 20:14:35,338 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:35,338 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:35,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:35,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:35,339 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:35,340 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 196 transitions, 2559 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:35,340 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:35,340 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:35,340 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:36,173 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:14:36,401 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:14:36,616 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2021-03-24 20:14:36,908 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:14:37,647 INFO L129 PetriNetUnfolder]: 368/1427 cut-off events. [2021-03-24 20:14:37,647 INFO L130 PetriNetUnfolder]: For 11879/11885 co-relation queries the response was YES. [2021-03-24 20:14:37,656 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8215 conditions, 1427 events. 368/1427 cut-off events. For 11879/11885 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 12223 event pairs, 228 based on Foata normal form. 4/1415 useless extension candidates. Maximal degree in co-relation 8156. Up to 1061 conditions per place. [2021-03-24 20:14:37,659 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 141 selfloop transitions, 55 changer transitions 26/232 dead transitions. [2021-03-24 20:14:37,659 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 232 transitions, 3387 flow [2021-03-24 20:14:37,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:37,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2464 transitions. [2021-03-24 20:14:37,661 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4924060751398881 [2021-03-24 20:14:37,662 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2464 transitions. [2021-03-24 20:14:37,662 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2464 transitions. [2021-03-24 20:14:37,662 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:37,662 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2464 transitions. [2021-03-24 20:14:37,663 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.88888888888889) internal successors, (2464), 18 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:37,665 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:37,666 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:37,666 INFO L185 Difference]: Start difference. First operand has 212 places, 196 transitions, 2559 flow. Second operand 18 states and 2464 transitions. [2021-03-24 20:14:37,666 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 232 transitions, 3387 flow [2021-03-24 20:14:37,694 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 232 transitions, 3180 flow, removed 15 selfloop flow, removed 18 redundant places. [2021-03-24 20:14:37,697 INFO L241 Difference]: Finished difference. Result has 194 places, 202 transitions, 2578 flow [2021-03-24 20:14:37,697 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2361, PETRI_DIFFERENCE_MINUEND_PLACES=171, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=145, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2578, PETRI_PLACES=194, PETRI_TRANSITIONS=202} [2021-03-24 20:14:37,697 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 128 predicate places. [2021-03-24 20:14:37,697 INFO L480 AbstractCegarLoop]: Abstraction has has 194 places, 202 transitions, 2578 flow [2021-03-24 20:14:37,697 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:37,697 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:37,697 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:37,697 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-03-24 20:14:37,698 INFO L428 AbstractCegarLoop]: === Iteration 101 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:37,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:37,698 INFO L82 PathProgramCache]: Analyzing trace with hash 1413946955, now seen corresponding path program 80 times [2021-03-24 20:14:37,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:37,698 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1844025511] [2021-03-24 20:14:37,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:37,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:37,749 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:37,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:37,750 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:37,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:37,760 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:37,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:37,781 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:37,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:37,804 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:37,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:37,842 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:37,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:37,889 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:37,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:37,907 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:37,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:37,926 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:37,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:37,960 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:37,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:37,991 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:37,992 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:38,024 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:38,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:38,058 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:14:38,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:38,097 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:14:38,098 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:14:38,112 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:14:38,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:14:38,148 INFO L142 QuantifierPusher]: treesize reduction 55, result has 32.9 percent of original size [2021-03-24 20:14:38,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:38,183 INFO L142 QuantifierPusher]: treesize reduction 52, result has 34.2 percent of original size [2021-03-24 20:14:38,184 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:38,220 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:14:38,220 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:38,262 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:38,262 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:38,288 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:38,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:38,309 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:38,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:38,310 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:38,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:38,336 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:38,336 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:38,364 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:38,364 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:38,389 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:38,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:38,414 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:38,414 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1844025511] [2021-03-24 20:14:38,414 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:38,414 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:38,414 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [148217229] [2021-03-24 20:14:38,414 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:38,414 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:38,415 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:38,415 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:38,416 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:38,417 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 194 places, 202 transitions, 2578 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:38,417 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:38,418 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:38,418 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:39,219 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:14:39,448 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 20:14:39,661 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:14:39,879 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:14:40,604 INFO L129 PetriNetUnfolder]: 357/1400 cut-off events. [2021-03-24 20:14:40,604 INFO L130 PetriNetUnfolder]: For 11310/11316 co-relation queries the response was YES. [2021-03-24 20:14:40,610 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7969 conditions, 1400 events. 357/1400 cut-off events. For 11310/11316 co-relation queries the response was YES. Maximal size of possible extension queue 140. Compared 11917 event pairs, 228 based on Foata normal form. 4/1391 useless extension candidates. Maximal degree in co-relation 7911. Up to 1066 conditions per place. [2021-03-24 20:14:40,612 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 143 selfloop transitions, 57 changer transitions 20/230 dead transitions. [2021-03-24 20:14:40,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 206 places, 230 transitions, 3354 flow [2021-03-24 20:14:40,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:40,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:40,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2461 transitions. [2021-03-24 20:14:40,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49180655475619506 [2021-03-24 20:14:40,614 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2461 transitions. [2021-03-24 20:14:40,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2461 transitions. [2021-03-24 20:14:40,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:40,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2461 transitions. [2021-03-24 20:14:40,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.72222222222223) internal successors, (2461), 18 states have internal predecessors, (2461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:40,617 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:40,618 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:40,618 INFO L185 Difference]: Start difference. First operand has 194 places, 202 transitions, 2578 flow. Second operand 18 states and 2461 transitions. [2021-03-24 20:14:40,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 206 places, 230 transitions, 3354 flow [2021-03-24 20:14:40,643 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 230 transitions, 3238 flow, removed 13 selfloop flow, removed 12 redundant places. [2021-03-24 20:14:40,647 INFO L241 Difference]: Finished difference. Result has 199 places, 206 transitions, 2673 flow [2021-03-24 20:14:40,647 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2473, PETRI_DIFFERENCE_MINUEND_PLACES=177, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=53, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=147, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2673, PETRI_PLACES=199, PETRI_TRANSITIONS=206} [2021-03-24 20:14:40,647 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 133 predicate places. [2021-03-24 20:14:40,647 INFO L480 AbstractCegarLoop]: Abstraction has has 199 places, 206 transitions, 2673 flow [2021-03-24 20:14:40,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:40,647 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:40,648 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:40,648 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-03-24 20:14:40,648 INFO L428 AbstractCegarLoop]: === Iteration 102 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:40,648 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:40,648 INFO L82 PathProgramCache]: Analyzing trace with hash -324647163, now seen corresponding path program 81 times [2021-03-24 20:14:40,648 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:40,648 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1823505385] [2021-03-24 20:14:40,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:40,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:40,720 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:40,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:40,721 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:40,721 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:40,734 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:40,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:40,762 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:40,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:40,794 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:40,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:40,849 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:40,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:40,896 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:40,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:40,914 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:40,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:40,933 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:40,933 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:40,967 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:40,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:40,999 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:40,999 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:41,031 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:41,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:41,064 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:14:41,065 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:41,103 INFO L142 QuantifierPusher]: treesize reduction 35, result has 60.7 percent of original size [2021-03-24 20:14:41,103 INFO L147 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size 38 [2021-03-24 20:14:41,150 INFO L142 QuantifierPusher]: treesize reduction 35, result has 58.3 percent of original size [2021-03-24 20:14:41,151 INFO L147 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size 33 [2021-03-24 20:14:41,172 INFO L142 QuantifierPusher]: treesize reduction 40, result has 51.8 percent of original size [2021-03-24 20:14:41,173 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 20:14:41,217 INFO L142 QuantifierPusher]: treesize reduction 45, result has 46.4 percent of original size [2021-03-24 20:14:41,217 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:41,257 INFO L142 QuantifierPusher]: treesize reduction 30, result has 44.4 percent of original size [2021-03-24 20:14:41,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:14:41,282 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:41,283 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:41,308 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:41,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:41,328 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:41,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:41,329 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:41,330 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:41,355 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:41,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:41,383 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:41,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:41,408 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:41,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:41,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:41,433 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1823505385] [2021-03-24 20:14:41,433 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:41,433 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:41,433 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506089850] [2021-03-24 20:14:41,433 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:41,433 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:41,433 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:41,434 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:41,435 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:41,436 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 206 transitions, 2673 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:41,436 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:41,436 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:41,436 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:42,218 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:14:42,414 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:14:42,657 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:14:43,595 INFO L129 PetriNetUnfolder]: 388/1492 cut-off events. [2021-03-24 20:14:43,595 INFO L130 PetriNetUnfolder]: For 12452/12458 co-relation queries the response was YES. [2021-03-24 20:14:43,600 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8636 conditions, 1492 events. 388/1492 cut-off events. For 12452/12458 co-relation queries the response was YES. Maximal size of possible extension queue 145. Compared 12858 event pairs, 213 based on Foata normal form. 5/1481 useless extension candidates. Maximal degree in co-relation 8576. Up to 1089 conditions per place. [2021-03-24 20:14:43,603 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 148 selfloop transitions, 76 changer transitions 20/254 dead transitions. [2021-03-24 20:14:43,603 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 211 places, 254 transitions, 3775 flow [2021-03-24 20:14:43,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:43,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:43,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2470 transitions. [2021-03-24 20:14:43,605 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4936051159072742 [2021-03-24 20:14:43,605 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2470 transitions. [2021-03-24 20:14:43,605 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2470 transitions. [2021-03-24 20:14:43,605 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:43,605 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2470 transitions. [2021-03-24 20:14:43,606 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.22222222222223) internal successors, (2470), 18 states have internal predecessors, (2470), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:43,608 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:43,608 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:43,608 INFO L185 Difference]: Start difference. First operand has 199 places, 206 transitions, 2673 flow. Second operand 18 states and 2470 transitions. [2021-03-24 20:14:43,608 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 211 places, 254 transitions, 3775 flow [2021-03-24 20:14:43,635 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 197 places, 254 transitions, 3631 flow, removed 13 selfloop flow, removed 14 redundant places. [2021-03-24 20:14:43,637 INFO L241 Difference]: Finished difference. Result has 202 places, 224 transitions, 3040 flow [2021-03-24 20:14:43,638 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2551, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=206, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3040, PETRI_PLACES=202, PETRI_TRANSITIONS=224} [2021-03-24 20:14:43,638 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 136 predicate places. [2021-03-24 20:14:43,638 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 224 transitions, 3040 flow [2021-03-24 20:14:43,638 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:43,638 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:43,638 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:43,638 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-03-24 20:14:43,638 INFO L428 AbstractCegarLoop]: === Iteration 103 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:43,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:43,639 INFO L82 PathProgramCache]: Analyzing trace with hash 139676879, now seen corresponding path program 82 times [2021-03-24 20:14:43,639 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:43,639 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2031367561] [2021-03-24 20:14:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:43,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:43,688 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:43,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:43,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:43,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:43,700 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:43,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:43,721 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:14:43,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:14:43,751 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:14:43,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:14:43,796 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:14:43,796 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:14:43,852 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:14:43,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:43,871 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:14:43,871 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:43,889 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:14:43,890 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:14:43,924 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:14:43,924 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:14:43,956 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:14:43,957 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:14:43,990 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 20:14:43,990 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 20:14:44,026 INFO L142 QuantifierPusher]: treesize reduction 18, result has 67.3 percent of original size [2021-03-24 20:14:44,026 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.5 percent of original size 32 [2021-03-24 20:14:44,063 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.7 percent of original size [2021-03-24 20:14:44,064 INFO L147 QuantifierPusher]: treesize reduction 3, result has 92.1 percent of original size 35 [2021-03-24 20:14:44,102 INFO L142 QuantifierPusher]: treesize reduction 40, result has 45.2 percent of original size [2021-03-24 20:14:44,103 INFO L147 QuantifierPusher]: treesize reduction 3, result has 90.9 percent of original size 30 [2021-03-24 20:14:44,119 INFO L142 QuantifierPusher]: treesize reduction 42, result has 39.1 percent of original size [2021-03-24 20:14:44,120 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 20:14:44,157 INFO L142 QuantifierPusher]: treesize reduction 42, result has 38.2 percent of original size [2021-03-24 20:14:44,158 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.5 percent of original size 23 [2021-03-24 20:14:44,196 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 20:14:44,197 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.9 percent of original size 34 [2021-03-24 20:14:44,240 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:14:44,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:44,269 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:14:44,269 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:44,290 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:14:44,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:44,317 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:14:44,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:44,346 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:14:44,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:44,373 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:14:44,374 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:44,374 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:44,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:44,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:44,400 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2031367561] [2021-03-24 20:14:44,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:44,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:44,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405552951] [2021-03-24 20:14:44,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:44,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:44,401 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:44,401 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:44,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:44,403 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 224 transitions, 3040 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:44,403 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:44,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:44,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:45,095 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2021-03-24 20:14:45,246 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-03-24 20:14:45,460 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2021-03-24 20:14:45,740 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 68 [2021-03-24 20:14:45,969 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:14:46,799 INFO L129 PetriNetUnfolder]: 379/1464 cut-off events. [2021-03-24 20:14:46,799 INFO L130 PetriNetUnfolder]: For 13075/13081 co-relation queries the response was YES. [2021-03-24 20:14:46,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8669 conditions, 1464 events. 379/1464 cut-off events. For 13075/13081 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 12581 event pairs, 220 based on Foata normal form. 4/1450 useless extension candidates. Maximal degree in co-relation 8607. Up to 1118 conditions per place. [2021-03-24 20:14:46,807 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 171 selfloop transitions, 52 changer transitions 20/253 dead transitions. [2021-03-24 20:14:46,807 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 253 transitions, 3852 flow [2021-03-24 20:14:46,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:46,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:46,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 20:14:46,811 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 20:14:46,811 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 20:14:46,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 20:14:46,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:46,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 20:14:46,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.0) internal successors, (2466), 18 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:46,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:46,816 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:46,816 INFO L185 Difference]: Start difference. First operand has 202 places, 224 transitions, 3040 flow. Second operand 18 states and 2466 transitions. [2021-03-24 20:14:46,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 253 transitions, 3852 flow [2021-03-24 20:14:46,848 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 206 places, 253 transitions, 3767 flow, removed 15 selfloop flow, removed 10 redundant places. [2021-03-24 20:14:46,852 INFO L241 Difference]: Finished difference. Result has 212 places, 227 transitions, 3129 flow [2021-03-24 20:14:46,852 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2961, PETRI_DIFFERENCE_MINUEND_PLACES=189, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=224, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3129, PETRI_PLACES=212, PETRI_TRANSITIONS=227} [2021-03-24 20:14:46,852 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 146 predicate places. [2021-03-24 20:14:46,852 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 227 transitions, 3129 flow [2021-03-24 20:14:46,853 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:46,853 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:46,853 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:46,853 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable102 [2021-03-24 20:14:46,853 INFO L428 AbstractCegarLoop]: === Iteration 104 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:46,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:46,853 INFO L82 PathProgramCache]: Analyzing trace with hash 498801169, now seen corresponding path program 83 times [2021-03-24 20:14:46,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:46,853 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693492271] [2021-03-24 20:14:46,853 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:46,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:46,928 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:46,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:46,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:46,931 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:46,943 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:46,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:46,972 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:14:46,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:14:47,012 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:14:47,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:14:47,070 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:14:47,071 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:14:47,132 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:14:47,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:47,151 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:14:47,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:47,171 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:14:47,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:14:47,193 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:14:47,193 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:14:47,214 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:14:47,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:14:47,236 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:14:47,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:14:47,259 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:14:47,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:14:47,286 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 20:14:47,286 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 20:14:47,332 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 20:14:47,332 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 20:14:47,349 INFO L142 QuantifierPusher]: treesize reduction 40, result has 48.1 percent of original size [2021-03-24 20:14:47,350 INFO L147 QuantifierPusher]: treesize reduction 7, result has 81.1 percent of original size 30 [2021-03-24 20:14:47,392 INFO L142 QuantifierPusher]: treesize reduction 40, result has 47.4 percent of original size [2021-03-24 20:14:47,393 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size 29 [2021-03-24 20:14:47,437 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.3 percent of original size [2021-03-24 20:14:47,437 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.1 percent of original size 40 [2021-03-24 20:14:47,501 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:47,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:47,529 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:47,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:47,549 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:47,549 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:47,575 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:47,576 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:47,603 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:47,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:47,629 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:47,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:47,630 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:47,630 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:47,654 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:47,655 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693492271] [2021-03-24 20:14:47,655 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:47,655 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:47,655 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556499689] [2021-03-24 20:14:47,655 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:47,655 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:47,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:47,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:47,657 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:47,658 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 227 transitions, 3129 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:47,658 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:47,658 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:47,659 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:48,465 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:14:48,682 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:14:48,931 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:14:49,140 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-03-24 20:14:49,932 INFO L129 PetriNetUnfolder]: 374/1445 cut-off events. [2021-03-24 20:14:49,932 INFO L130 PetriNetUnfolder]: For 13526/13532 co-relation queries the response was YES. [2021-03-24 20:14:49,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8687 conditions, 1445 events. 374/1445 cut-off events. For 13526/13532 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 12356 event pairs, 225 based on Foata normal form. 4/1431 useless extension candidates. Maximal degree in co-relation 8621. Up to 1106 conditions per place. [2021-03-24 20:14:49,941 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 155 selfloop transitions, 60 changer transitions 20/245 dead transitions. [2021-03-24 20:14:49,941 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 245 transitions, 3786 flow [2021-03-24 20:14:49,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:49,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 20:14:49,943 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 20:14:49,943 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 20:14:49,943 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 20:14:49,943 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:49,943 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 20:14:49,944 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.83333333333334) internal successors, (2463), 18 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:49,946 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:49,946 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:49,946 INFO L185 Difference]: Start difference. First operand has 212 places, 227 transitions, 3129 flow. Second operand 18 states and 2463 transitions. [2021-03-24 20:14:49,946 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 245 transitions, 3786 flow [2021-03-24 20:14:49,978 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 245 transitions, 3668 flow, removed 15 selfloop flow, removed 13 redundant places. [2021-03-24 20:14:49,981 INFO L241 Difference]: Finished difference. Result has 214 places, 223 transitions, 3075 flow [2021-03-24 20:14:49,981 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3017, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=167, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3075, PETRI_PLACES=214, PETRI_TRANSITIONS=223} [2021-03-24 20:14:49,981 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 148 predicate places. [2021-03-24 20:14:49,981 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 223 transitions, 3075 flow [2021-03-24 20:14:49,982 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:49,982 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:49,982 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:49,982 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable103 [2021-03-24 20:14:49,982 INFO L428 AbstractCegarLoop]: === Iteration 105 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:49,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:49,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1456418775, now seen corresponding path program 84 times [2021-03-24 20:14:49,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:49,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328990496] [2021-03-24 20:14:49,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:49,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:50,053 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:50,053 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:50,054 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:50,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:50,066 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:50,067 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:50,089 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:14:50,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:14:50,127 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:14:50,127 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:14:50,174 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:14:50,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:14:50,229 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:14:50,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:14:50,293 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:14:50,294 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:14:50,295 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:14:50,295 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:14:50,317 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:14:50,318 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:14:50,340 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:14:50,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:14:50,382 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:14:50,383 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:14:50,421 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:14:50,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:14:50,460 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.9 percent of original size [2021-03-24 20:14:50,461 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:50,506 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:14:50,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:14:50,552 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:14:50,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:14:50,573 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:14:50,574 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:14:50,617 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:14:50,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:14:50,663 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:14:50,663 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:14:50,688 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:14:50,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:14:50,714 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:14:50,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:14:50,754 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:14:50,755 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:50,779 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:14:50,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:50,816 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:14:50,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:50,856 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:14:50,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:14:50,882 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:14:50,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:14:50,883 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:14:50,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:14:50,907 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:50,907 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328990496] [2021-03-24 20:14:50,907 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:50,907 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:14:50,907 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283756498] [2021-03-24 20:14:50,907 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:14:50,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:50,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:14:50,908 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:14:50,909 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:14:50,909 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 223 transitions, 3075 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:50,909 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:50,909 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:14:50,909 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:51,617 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-03-24 20:14:51,802 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:14:52,121 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:14:52,586 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 20:14:52,843 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 20:14:53,330 INFO L129 PetriNetUnfolder]: 395/1514 cut-off events. [2021-03-24 20:14:53,331 INFO L130 PetriNetUnfolder]: For 13947/13973 co-relation queries the response was YES. [2021-03-24 20:14:53,337 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9090 conditions, 1514 events. 395/1514 cut-off events. For 13947/13973 co-relation queries the response was YES. Maximal size of possible extension queue 151. Compared 13170 event pairs, 227 based on Foata normal form. 6/1498 useless extension candidates. Maximal degree in co-relation 9025. Up to 1080 conditions per place. [2021-03-24 20:14:53,340 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 189 selfloop transitions, 59 changer transitions 29/283 dead transitions. [2021-03-24 20:14:53,340 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 283 transitions, 4323 flow [2021-03-24 20:14:53,341 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:14:53,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:14:53,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1614 transitions. [2021-03-24 20:14:53,342 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3225419664268585 [2021-03-24 20:14:53,342 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1614 transitions. [2021-03-24 20:14:53,342 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1614 transitions. [2021-03-24 20:14:53,342 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:53,342 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1614 transitions. [2021-03-24 20:14:53,343 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.66666666666667) internal successors, (1614), 18 states have internal predecessors, (1614), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:53,345 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:53,346 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:53,346 INFO L185 Difference]: Start difference. First operand has 214 places, 223 transitions, 3075 flow. Second operand 18 states and 1614 transitions. [2021-03-24 20:14:53,346 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 283 transitions, 4323 flow [2021-03-24 20:14:53,388 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 283 transitions, 4163 flow, removed 7 selfloop flow, removed 18 redundant places. [2021-03-24 20:14:53,392 INFO L241 Difference]: Finished difference. Result has 214 places, 234 transitions, 3217 flow [2021-03-24 20:14:53,392 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2929, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=223, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=171, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3217, PETRI_PLACES=214, PETRI_TRANSITIONS=234} [2021-03-24 20:14:53,392 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 148 predicate places. [2021-03-24 20:14:53,392 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 234 transitions, 3217 flow [2021-03-24 20:14:53,392 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:53,392 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:53,392 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:53,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable104 [2021-03-24 20:14:53,392 INFO L428 AbstractCegarLoop]: === Iteration 106 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:53,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:53,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1901842489, now seen corresponding path program 85 times [2021-03-24 20:14:53,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:53,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [293738683] [2021-03-24 20:14:53,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:53,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:53,464 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:53,465 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:53,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:53,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:53,478 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:53,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:53,506 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:14:53,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:14:53,546 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:14:53,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:14:53,592 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:14:53,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:14:53,645 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:14:53,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:53,677 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:14:53,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:14:53,708 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:14:53,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:14:53,751 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:14:53,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:53,790 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:14:53,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:53,830 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:14:53,831 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:53,873 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:14:53,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:14:53,927 INFO L142 QuantifierPusher]: treesize reduction 39, result has 60.2 percent of original size [2021-03-24 20:14:53,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 59 [2021-03-24 20:14:53,945 INFO L142 QuantifierPusher]: treesize reduction 56, result has 57.6 percent of original size [2021-03-24 20:14:53,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:14:54,011 INFO L142 QuantifierPusher]: treesize reduction 61, result has 53.4 percent of original size [2021-03-24 20:14:54,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:14:54,077 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:14:54,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:14:54,153 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:14:54,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:54,201 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:14:54,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:14:54,227 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:14:54,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:14:54,271 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:14:54,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:14:54,316 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:14:54,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:14:54,343 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:54,344 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:54,371 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:54,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:54,372 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:54,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:54,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:54,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [293738683] [2021-03-24 20:14:54,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:54,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:54,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206467765] [2021-03-24 20:14:54,400 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:54,400 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:54,400 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:54,400 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:54,402 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:54,402 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 234 transitions, 3217 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:54,402 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:54,403 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:54,403 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:55,149 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 20:14:55,321 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-03-24 20:14:55,579 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-03-24 20:14:55,857 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2021-03-24 20:14:56,916 INFO L129 PetriNetUnfolder]: 394/1516 cut-off events. [2021-03-24 20:14:56,916 INFO L130 PetriNetUnfolder]: For 14137/14143 co-relation queries the response was YES. [2021-03-24 20:14:56,924 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9145 conditions, 1516 events. 394/1516 cut-off events. For 14137/14143 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13166 event pairs, 220 based on Foata normal form. 4/1502 useless extension candidates. Maximal degree in co-relation 9078. Up to 1128 conditions per place. [2021-03-24 20:14:56,927 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 160 selfloop transitions, 84 changer transitions 9/263 dead transitions. [2021-03-24 20:14:56,927 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 227 places, 263 transitions, 4061 flow [2021-03-24 20:14:56,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:14:56,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:14:56,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2600 transitions. [2021-03-24 20:14:56,929 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922377887163953 [2021-03-24 20:14:56,929 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2600 transitions. [2021-03-24 20:14:56,929 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2600 transitions. [2021-03-24 20:14:56,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:14:56,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2600 transitions. [2021-03-24 20:14:56,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.8421052631579) internal successors, (2600), 19 states have internal predecessors, (2600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:56,933 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:56,933 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:56,933 INFO L185 Difference]: Start difference. First operand has 214 places, 234 transitions, 3217 flow. Second operand 19 states and 2600 transitions. [2021-03-24 20:14:56,933 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 227 places, 263 transitions, 4061 flow [2021-03-24 20:14:56,971 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 216 places, 263 transitions, 3974 flow, removed 11 selfloop flow, removed 11 redundant places. [2021-03-24 20:14:56,974 INFO L241 Difference]: Finished difference. Result has 221 places, 245 transitions, 3504 flow [2021-03-24 20:14:56,974 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3134, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=234, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3504, PETRI_PLACES=221, PETRI_TRANSITIONS=245} [2021-03-24 20:14:56,974 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 155 predicate places. [2021-03-24 20:14:56,975 INFO L480 AbstractCegarLoop]: Abstraction has has 221 places, 245 transitions, 3504 flow [2021-03-24 20:14:56,975 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:56,975 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:14:56,975 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:14:56,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable105 [2021-03-24 20:14:56,975 INFO L428 AbstractCegarLoop]: === Iteration 107 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:14:56,975 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:14:56,976 INFO L82 PathProgramCache]: Analyzing trace with hash -307958091, now seen corresponding path program 86 times [2021-03-24 20:14:56,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:14:56,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588364573] [2021-03-24 20:14:56,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:14:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:14:57,033 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:57,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:14:57,034 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:14:57,034 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:14:57,045 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:14:57,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:57,068 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:14:57,069 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:14:57,093 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:14:57,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:14:57,134 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:14:57,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:14:57,185 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:14:57,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:14:57,205 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:14:57,206 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:14:57,225 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:14:57,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:14:57,262 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:57,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:57,296 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:14:57,297 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:57,333 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 20:14:57,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:57,368 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 20:14:57,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:14:57,410 INFO L142 QuantifierPusher]: treesize reduction 35, result has 60.7 percent of original size [2021-03-24 20:14:57,411 INFO L147 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size 38 [2021-03-24 20:14:57,461 INFO L142 QuantifierPusher]: treesize reduction 35, result has 58.3 percent of original size [2021-03-24 20:14:57,462 INFO L147 QuantifierPusher]: treesize reduction 16, result has 67.3 percent of original size 33 [2021-03-24 20:14:57,480 INFO L142 QuantifierPusher]: treesize reduction 40, result has 51.8 percent of original size [2021-03-24 20:14:57,480 INFO L147 QuantifierPusher]: treesize reduction 16, result has 62.8 percent of original size 27 [2021-03-24 20:14:57,527 INFO L142 QuantifierPusher]: treesize reduction 45, result has 46.4 percent of original size [2021-03-24 20:14:57,527 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:14:57,569 INFO L142 QuantifierPusher]: treesize reduction 30, result has 44.4 percent of original size [2021-03-24 20:14:57,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:14:57,597 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:14:57,597 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:57,626 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:14:57,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:14:57,649 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:57,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:57,650 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:14:57,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:57,680 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:14:57,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:14:57,709 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:14:57,710 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:14:57,737 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:14:57,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:14:57,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:14:57,763 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588364573] [2021-03-24 20:14:57,763 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:14:57,763 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:14:57,763 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373585655] [2021-03-24 20:14:57,763 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:14:57,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:14:57,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:14:57,764 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:14:57,765 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:14:57,766 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 221 places, 245 transitions, 3504 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:14:57,766 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:14:57,766 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:14:57,766 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:14:58,614 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-03-24 20:14:58,809 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:14:59,090 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:15:00,109 INFO L129 PetriNetUnfolder]: 396/1535 cut-off events. [2021-03-24 20:15:00,109 INFO L130 PetriNetUnfolder]: For 15187/15193 co-relation queries the response was YES. [2021-03-24 20:15:00,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9372 conditions, 1535 events. 396/1535 cut-off events. For 15187/15193 co-relation queries the response was YES. Maximal size of possible extension queue 157. Compared 13425 event pairs, 204 based on Foata normal form. 5/1523 useless extension candidates. Maximal degree in co-relation 9304. Up to 1125 conditions per place. [2021-03-24 20:15:00,119 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 188 selfloop transitions, 72 changer transitions 19/289 dead transitions. [2021-03-24 20:15:00,119 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 236 places, 289 transitions, 4655 flow [2021-03-24 20:15:00,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:00,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:00,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2472 transitions. [2021-03-24 20:15:00,122 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4940047961630695 [2021-03-24 20:15:00,122 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2472 transitions. [2021-03-24 20:15:00,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2472 transitions. [2021-03-24 20:15:00,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:00,122 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2472 transitions. [2021-03-24 20:15:00,123 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.33333333333334) internal successors, (2472), 18 states have internal predecessors, (2472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:00,126 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:00,126 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:00,126 INFO L185 Difference]: Start difference. First operand has 221 places, 245 transitions, 3504 flow. Second operand 18 states and 2472 transitions. [2021-03-24 20:15:00,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 236 places, 289 transitions, 4655 flow [2021-03-24 20:15:00,170 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 223 places, 289 transitions, 4468 flow, removed 28 selfloop flow, removed 13 redundant places. [2021-03-24 20:15:00,174 INFO L241 Difference]: Finished difference. Result has 227 places, 257 transitions, 3727 flow [2021-03-24 20:15:00,174 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3321, PETRI_DIFFERENCE_MINUEND_PLACES=206, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=245, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=60, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=173, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3727, PETRI_PLACES=227, PETRI_TRANSITIONS=257} [2021-03-24 20:15:00,174 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 161 predicate places. [2021-03-24 20:15:00,174 INFO L480 AbstractCegarLoop]: Abstraction has has 227 places, 257 transitions, 3727 flow [2021-03-24 20:15:00,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:00,174 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:00,174 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:00,174 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable106 [2021-03-24 20:15:00,175 INFO L428 AbstractCegarLoop]: === Iteration 108 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:00,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:00,175 INFO L82 PathProgramCache]: Analyzing trace with hash -824901245, now seen corresponding path program 87 times [2021-03-24 20:15:00,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:00,175 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089434387] [2021-03-24 20:15:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:00,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:00,233 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:00,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:00,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:00,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:00,246 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:00,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:00,270 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:15:00,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:15:00,303 INFO L142 QuantifierPusher]: treesize reduction 20, result has 71.8 percent of original size [2021-03-24 20:15:00,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:00,351 INFO L142 QuantifierPusher]: treesize reduction 20, result has 77.3 percent of original size [2021-03-24 20:15:00,351 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:00,404 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:15:00,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:00,423 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:15:00,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:00,443 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.2 percent of original size [2021-03-24 20:15:00,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:15:00,469 INFO L142 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size [2021-03-24 20:15:00,470 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:15:00,493 INFO L142 QuantifierPusher]: treesize reduction 12, result has 74.5 percent of original size [2021-03-24 20:15:00,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:15:00,518 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 20:15:00,518 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:15:00,560 INFO L142 QuantifierPusher]: treesize reduction 16, result has 72.9 percent of original size [2021-03-24 20:15:00,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:15:00,607 INFO L142 QuantifierPusher]: treesize reduction 68, result has 42.9 percent of original size [2021-03-24 20:15:00,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:00,660 INFO L142 QuantifierPusher]: treesize reduction 68, result has 40.4 percent of original size [2021-03-24 20:15:00,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:15:00,680 INFO L142 QuantifierPusher]: treesize reduction 73, result has 35.4 percent of original size [2021-03-24 20:15:00,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:15:00,727 INFO L142 QuantifierPusher]: treesize reduction 69, result has 42.5 percent of original size [2021-03-24 20:15:00,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:00,782 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:15:00,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:15:00,810 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:15:00,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:15:00,830 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:15:00,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:15:00,856 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:15:00,856 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:15:00,884 INFO L142 QuantifierPusher]: treesize reduction 10, result has 64.3 percent of original size [2021-03-24 20:15:00,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:15:00,910 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:00,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:00,937 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:00,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:00,938 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:00,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:00,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:00,964 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089434387] [2021-03-24 20:15:00,964 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:00,964 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:00,964 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298042379] [2021-03-24 20:15:00,964 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:00,964 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:00,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:00,964 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:00,966 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:00,967 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 227 places, 257 transitions, 3727 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:00,967 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:00,967 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:00,967 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:01,694 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 61 [2021-03-24 20:15:01,872 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-03-24 20:15:02,098 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 69 [2021-03-24 20:15:02,415 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-03-24 20:15:03,544 INFO L129 PetriNetUnfolder]: 384/1510 cut-off events. [2021-03-24 20:15:03,545 INFO L130 PetriNetUnfolder]: For 15380/15386 co-relation queries the response was YES. [2021-03-24 20:15:03,553 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9235 conditions, 1510 events. 384/1510 cut-off events. For 15380/15386 co-relation queries the response was YES. Maximal size of possible extension queue 155. Compared 13218 event pairs, 204 based on Foata normal form. 4/1497 useless extension candidates. Maximal degree in co-relation 9164. Up to 1112 conditions per place. [2021-03-24 20:15:03,555 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 189 selfloop transitions, 83 changer transitions 9/291 dead transitions. [2021-03-24 20:15:03,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 291 transitions, 4743 flow [2021-03-24 20:15:03,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:15:03,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:15:03,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2604 transitions. [2021-03-24 20:15:03,558 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4929950776221128 [2021-03-24 20:15:03,558 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2604 transitions. [2021-03-24 20:15:03,558 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2604 transitions. [2021-03-24 20:15:03,558 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:03,558 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2604 transitions. [2021-03-24 20:15:03,560 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 137.05263157894737) internal successors, (2604), 19 states have internal predecessors, (2604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:03,561 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:03,562 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:03,562 INFO L185 Difference]: Start difference. First operand has 227 places, 257 transitions, 3727 flow. Second operand 19 states and 2604 transitions. [2021-03-24 20:15:03,562 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 291 transitions, 4743 flow [2021-03-24 20:15:03,610 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 229 places, 291 transitions, 4560 flow, removed 43 selfloop flow, removed 13 redundant places. [2021-03-24 20:15:03,614 INFO L241 Difference]: Finished difference. Result has 234 places, 269 transitions, 3979 flow [2021-03-24 20:15:03,614 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3574, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=70, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=178, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3979, PETRI_PLACES=234, PETRI_TRANSITIONS=269} [2021-03-24 20:15:03,614 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 168 predicate places. [2021-03-24 20:15:03,614 INFO L480 AbstractCegarLoop]: Abstraction has has 234 places, 269 transitions, 3979 flow [2021-03-24 20:15:03,614 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:03,614 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:03,614 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:03,614 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable107 [2021-03-24 20:15:03,614 INFO L428 AbstractCegarLoop]: === Iteration 109 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:03,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:03,615 INFO L82 PathProgramCache]: Analyzing trace with hash -790785223, now seen corresponding path program 88 times [2021-03-24 20:15:03,615 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:03,615 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490597632] [2021-03-24 20:15:03,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:03,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:03,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:03,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:03,682 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:03,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:03,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:03,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:03,716 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:15:03,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:15:03,747 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:15:03,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:03,795 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:15:03,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:03,852 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.3 percent of original size [2021-03-24 20:15:03,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:15:03,915 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:15:03,915 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:03,916 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:15:03,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:15:03,950 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:15:03,950 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:15:03,983 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:15:03,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:04,029 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:04,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:15:04,070 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:04,070 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:15:04,112 INFO L142 QuantifierPusher]: treesize reduction 31, result has 62.2 percent of original size [2021-03-24 20:15:04,112 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:04,163 INFO L142 QuantifierPusher]: treesize reduction 31, result has 62.2 percent of original size [2021-03-24 20:15:04,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:04,212 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.0 percent of original size [2021-03-24 20:15:04,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:15:04,284 INFO L142 QuantifierPusher]: treesize reduction 54, result has 58.5 percent of original size [2021-03-24 20:15:04,285 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:15:04,308 INFO L142 QuantifierPusher]: treesize reduction 59, result has 54.3 percent of original size [2021-03-24 20:15:04,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:15:04,375 INFO L142 QuantifierPusher]: treesize reduction 54, result has 60.0 percent of original size [2021-03-24 20:15:04,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:15:04,451 INFO L142 QuantifierPusher]: treesize reduction 29, result has 60.3 percent of original size [2021-03-24 20:15:04,452 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:15:04,501 INFO L142 QuantifierPusher]: treesize reduction 29, result has 57.4 percent of original size [2021-03-24 20:15:04,502 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:15:04,528 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.8 percent of original size [2021-03-24 20:15:04,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:15:04,573 INFO L142 QuantifierPusher]: treesize reduction 39, result has 45.1 percent of original size [2021-03-24 20:15:04,573 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:15:04,620 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 20:15:04,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:04,670 INFO L142 QuantifierPusher]: treesize reduction 27, result has 58.5 percent of original size [2021-03-24 20:15:04,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:04,671 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:04,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:04,701 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:04,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:04,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:04,729 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490597632] [2021-03-24 20:15:04,729 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:04,729 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:15:04,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246923326] [2021-03-24 20:15:04,729 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:15:04,729 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:04,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:15:04,729 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:15:04,731 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:15:04,731 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 234 places, 269 transitions, 3979 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:04,731 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:04,731 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:15:04,731 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:05,511 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 60 [2021-03-24 20:15:05,691 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 65 [2021-03-24 20:15:05,917 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-03-24 20:15:06,215 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2021-03-24 20:15:07,373 INFO L129 PetriNetUnfolder]: 381/1486 cut-off events. [2021-03-24 20:15:07,373 INFO L130 PetriNetUnfolder]: For 15906/15912 co-relation queries the response was YES. [2021-03-24 20:15:07,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9314 conditions, 1486 events. 381/1486 cut-off events. For 15906/15912 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 12901 event pairs, 204 based on Foata normal form. 4/1473 useless extension candidates. Maximal degree in co-relation 9241. Up to 1100 conditions per place. [2021-03-24 20:15:07,384 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 191 selfloop transitions, 79 changer transitions 15/291 dead transitions. [2021-03-24 20:15:07,384 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 291 transitions, 4761 flow [2021-03-24 20:15:07,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:15:07,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:15:07,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1785 transitions. [2021-03-24 20:15:07,386 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3210431654676259 [2021-03-24 20:15:07,386 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1785 transitions. [2021-03-24 20:15:07,386 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1785 transitions. [2021-03-24 20:15:07,386 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:07,386 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1785 transitions. [2021-03-24 20:15:07,387 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.25) internal successors, (1785), 20 states have internal predecessors, (1785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:07,389 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:07,389 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:07,389 INFO L185 Difference]: Start difference. First operand has 234 places, 269 transitions, 3979 flow. Second operand 20 states and 1785 transitions. [2021-03-24 20:15:07,389 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 291 transitions, 4761 flow [2021-03-24 20:15:07,440 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 238 places, 291 transitions, 4553 flow, removed 40 selfloop flow, removed 13 redundant places. [2021-03-24 20:15:07,444 INFO L241 Difference]: Finished difference. Result has 239 places, 264 transitions, 3865 flow [2021-03-24 20:15:07,444 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3778, PETRI_DIFFERENCE_MINUEND_PLACES=219, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=269, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=79, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3865, PETRI_PLACES=239, PETRI_TRANSITIONS=264} [2021-03-24 20:15:07,444 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 173 predicate places. [2021-03-24 20:15:07,444 INFO L480 AbstractCegarLoop]: Abstraction has has 239 places, 264 transitions, 3865 flow [2021-03-24 20:15:07,444 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:07,444 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:07,444 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:07,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable108 [2021-03-24 20:15:07,444 INFO L428 AbstractCegarLoop]: === Iteration 110 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:07,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:07,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1417887901, now seen corresponding path program 89 times [2021-03-24 20:15:07,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:07,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855504191] [2021-03-24 20:15:07,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:07,499 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:07,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:07,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:07,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:07,511 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:07,511 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:07,533 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:15:07,534 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:15:07,564 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:15:07,564 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:07,610 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:15:07,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:07,661 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:15:07,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:07,681 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:15:07,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:07,700 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:15:07,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:15:07,723 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:15:07,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:15:07,745 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:15:07,745 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:15:07,768 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 20:15:07,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:15:07,792 INFO L142 QuantifierPusher]: treesize reduction 21, result has 60.4 percent of original size [2021-03-24 20:15:07,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:15:07,817 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.8 percent of original size [2021-03-24 20:15:07,818 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.4 percent of original size 41 [2021-03-24 20:15:07,865 INFO L142 QuantifierPusher]: treesize reduction 35, result has 55.1 percent of original size [2021-03-24 20:15:07,866 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.7 percent of original size 36 [2021-03-24 20:15:07,883 INFO L142 QuantifierPusher]: treesize reduction 35, result has 54.5 percent of original size [2021-03-24 20:15:07,884 INFO L147 QuantifierPusher]: treesize reduction 7, result has 83.3 percent of original size 35 [2021-03-24 20:15:07,929 INFO L142 QuantifierPusher]: treesize reduction 40, result has 47.4 percent of original size [2021-03-24 20:15:07,929 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.6 percent of original size 29 [2021-03-24 20:15:07,974 INFO L142 QuantifierPusher]: treesize reduction 35, result has 57.3 percent of original size [2021-03-24 20:15:07,974 INFO L147 QuantifierPusher]: treesize reduction 7, result has 85.1 percent of original size 40 [2021-03-24 20:15:08,040 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:15:08,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:08,068 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:15:08,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:08,088 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:15:08,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:08,115 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:15:08,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:08,143 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:15:08,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:08,144 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:08,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:08,171 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:08,171 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:08,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:08,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855504191] [2021-03-24 20:15:08,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:08,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:08,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861754813] [2021-03-24 20:15:08,196 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:08,196 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:08,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:08,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:08,198 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:08,199 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 239 places, 264 transitions, 3865 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:08,199 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:08,199 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:08,199 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:08,878 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 57 [2021-03-24 20:15:09,031 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-03-24 20:15:09,211 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2021-03-24 20:15:09,462 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-03-24 20:15:09,811 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2021-03-24 20:15:10,580 INFO L129 PetriNetUnfolder]: 376/1456 cut-off events. [2021-03-24 20:15:10,580 INFO L130 PetriNetUnfolder]: For 15322/15339 co-relation queries the response was YES. [2021-03-24 20:15:10,588 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9038 conditions, 1456 events. 376/1456 cut-off events. For 15322/15339 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 12512 event pairs, 212 based on Foata normal form. 10/1450 useless extension candidates. Maximal degree in co-relation 8965. Up to 1078 conditions per place. [2021-03-24 20:15:10,590 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 188 selfloop transitions, 54 changer transitions 33/285 dead transitions. [2021-03-24 20:15:10,590 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 252 places, 285 transitions, 4623 flow [2021-03-24 20:15:10,591 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:10,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:10,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2021-03-24 20:15:10,592 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2021-03-24 20:15:10,592 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2467 transitions. [2021-03-24 20:15:10,592 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2467 transitions. [2021-03-24 20:15:10,593 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:10,593 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2467 transitions. [2021-03-24 20:15:10,594 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.05555555555554) internal successors, (2467), 18 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:10,596 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:10,596 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:10,596 INFO L185 Difference]: Start difference. First operand has 239 places, 264 transitions, 3865 flow. Second operand 18 states and 2467 transitions. [2021-03-24 20:15:10,596 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 252 places, 285 transitions, 4623 flow [2021-03-24 20:15:10,647 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 285 transitions, 4412 flow, removed 10 selfloop flow, removed 20 redundant places. [2021-03-24 20:15:10,650 INFO L241 Difference]: Finished difference. Result has 235 places, 247 transitions, 3499 flow [2021-03-24 20:15:10,651 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3671, PETRI_DIFFERENCE_MINUEND_PLACES=215, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=210, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3499, PETRI_PLACES=235, PETRI_TRANSITIONS=247} [2021-03-24 20:15:10,651 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 169 predicate places. [2021-03-24 20:15:10,651 INFO L480 AbstractCegarLoop]: Abstraction has has 235 places, 247 transitions, 3499 flow [2021-03-24 20:15:10,651 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:10,651 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:10,651 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:10,651 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable109 [2021-03-24 20:15:10,651 INFO L428 AbstractCegarLoop]: === Iteration 111 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:10,651 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:10,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1087179925, now seen corresponding path program 90 times [2021-03-24 20:15:10,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:10,652 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554162596] [2021-03-24 20:15:10,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:10,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:10,715 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:10,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:10,716 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:10,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:10,731 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:10,732 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:10,765 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:10,766 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:10,811 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:10,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:10,882 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:10,883 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:10,968 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:10,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:10,994 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:10,994 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:11,020 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:11,021 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:11,059 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:11,059 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:11,091 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:11,092 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:11,125 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:11,125 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:11,165 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:11,166 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:11,211 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:11,211 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:11,229 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:11,230 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:11,271 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:15:11,272 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:15:11,316 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:15:11,317 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:15:11,362 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:11,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:11,391 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:11,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:11,421 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:11,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:11,443 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:11,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:11,473 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:11,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:11,506 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:11,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:11,541 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:11,541 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:11,542 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:11,542 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:11,570 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:11,571 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554162596] [2021-03-24 20:15:11,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:11,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:11,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547553912] [2021-03-24 20:15:11,571 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:11,571 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:11,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:11,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:11,573 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:11,574 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 235 places, 247 transitions, 3499 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:11,574 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:11,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:11,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:12,462 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:15:12,761 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:15:12,963 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 20:15:13,553 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:15:13,998 INFO L129 PetriNetUnfolder]: 360/1403 cut-off events. [2021-03-24 20:15:13,998 INFO L130 PetriNetUnfolder]: For 14421/14427 co-relation queries the response was YES. [2021-03-24 20:15:14,006 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8611 conditions, 1403 events. 360/1403 cut-off events. For 14421/14427 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 11984 event pairs, 206 based on Foata normal form. 4/1394 useless extension candidates. Maximal degree in co-relation 8538. Up to 1080 conditions per place. [2021-03-24 20:15:14,009 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 186 selfloop transitions, 58 changer transitions 19/273 dead transitions. [2021-03-24 20:15:14,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 246 places, 273 transitions, 4310 flow [2021-03-24 20:15:14,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:14,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:14,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2021-03-24 20:15:14,011 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4926059152677858 [2021-03-24 20:15:14,011 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2021-03-24 20:15:14,011 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2021-03-24 20:15:14,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:14,011 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2021-03-24 20:15:14,013 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.94444444444446) internal successors, (2465), 18 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:14,014 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:14,015 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:14,015 INFO L185 Difference]: Start difference. First operand has 235 places, 247 transitions, 3499 flow. Second operand 18 states and 2465 transitions. [2021-03-24 20:15:14,015 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 246 places, 273 transitions, 4310 flow [2021-03-24 20:15:14,062 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 231 places, 273 transitions, 4161 flow, removed 11 selfloop flow, removed 15 redundant places. [2021-03-24 20:15:14,065 INFO L241 Difference]: Finished difference. Result has 237 places, 251 transitions, 3546 flow [2021-03-24 20:15:14,065 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3362, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=247, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3546, PETRI_PLACES=237, PETRI_TRANSITIONS=251} [2021-03-24 20:15:14,065 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 171 predicate places. [2021-03-24 20:15:14,065 INFO L480 AbstractCegarLoop]: Abstraction has has 237 places, 251 transitions, 3546 flow [2021-03-24 20:15:14,065 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:14,065 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:14,065 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:14,066 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable110 [2021-03-24 20:15:14,066 INFO L428 AbstractCegarLoop]: === Iteration 112 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:14,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:14,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2020061949, now seen corresponding path program 91 times [2021-03-24 20:15:14,066 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:14,066 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2132109408] [2021-03-24 20:15:14,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:14,152 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:14,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:14,153 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:14,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:14,165 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:14,166 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:14,195 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:15:14,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:15:14,249 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:15:14,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:15:14,325 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:15:14,326 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:15:14,411 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:15:14,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:15:14,519 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:15:14,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:15:14,521 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:15:14,521 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:15:14,557 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:15:14,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:14,594 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:15:14,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:15:14,657 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:15:14,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:15:14,715 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:15:14,716 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:15:14,773 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.9 percent of original size [2021-03-24 20:15:14,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:15:14,838 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:15:14,839 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:15:14,905 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:15:14,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:15:14,961 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:15:14,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:15:14,988 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:15:14,988 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:15:15,040 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:15:15,041 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:15:15,094 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:15:15,095 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:15:15,125 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:15:15,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:15:15,173 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:15:15,173 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:15,201 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:15:15,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:15,244 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:15:15,244 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:15,290 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:15:15,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:15:15,320 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:15:15,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:15:15,321 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:15:15,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:15:15,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:15,349 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2132109408] [2021-03-24 20:15:15,349 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:15,349 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:15:15,349 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131072624] [2021-03-24 20:15:15,349 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:15:15,350 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:15,350 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:15:15,350 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:15:15,351 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:15:15,352 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 237 places, 251 transitions, 3546 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:15,352 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:15,352 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:15:15,352 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:16,125 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-03-24 20:15:16,319 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:15:16,585 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-24 20:15:16,894 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-03-24 20:15:17,240 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:15:17,472 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:15:17,948 INFO L129 PetriNetUnfolder]: 361/1414 cut-off events. [2021-03-24 20:15:17,948 INFO L130 PetriNetUnfolder]: For 14765/14771 co-relation queries the response was YES. [2021-03-24 20:15:17,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8816 conditions, 1414 events. 361/1414 cut-off events. For 14765/14771 co-relation queries the response was YES. Maximal size of possible extension queue 142. Compared 12114 event pairs, 205 based on Foata normal form. 4/1405 useless extension candidates. Maximal degree in co-relation 8741. Up to 1076 conditions per place. [2021-03-24 20:15:17,959 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 195 selfloop transitions, 56 changer transitions 27/284 dead transitions. [2021-03-24 20:15:17,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 248 places, 284 transitions, 4532 flow [2021-03-24 20:15:17,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:17,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:17,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1611 transitions. [2021-03-24 20:15:17,961 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32194244604316546 [2021-03-24 20:15:17,961 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1611 transitions. [2021-03-24 20:15:17,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1611 transitions. [2021-03-24 20:15:17,961 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:17,961 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1611 transitions. [2021-03-24 20:15:17,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.5) internal successors, (1611), 18 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:17,964 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:17,964 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:17,964 INFO L185 Difference]: Start difference. First operand has 237 places, 251 transitions, 3546 flow. Second operand 18 states and 1611 transitions. [2021-03-24 20:15:17,964 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 248 places, 284 transitions, 4532 flow [2021-03-24 20:15:18,010 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 235 places, 284 transitions, 4409 flow, removed 10 selfloop flow, removed 13 redundant places. [2021-03-24 20:15:18,014 INFO L241 Difference]: Finished difference. Result has 240 places, 250 transitions, 3578 flow [2021-03-24 20:15:18,014 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3430, PETRI_DIFFERENCE_MINUEND_PLACES=218, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3578, PETRI_PLACES=240, PETRI_TRANSITIONS=250} [2021-03-24 20:15:18,014 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 174 predicate places. [2021-03-24 20:15:18,014 INFO L480 AbstractCegarLoop]: Abstraction has has 240 places, 250 transitions, 3578 flow [2021-03-24 20:15:18,014 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:18,014 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:18,014 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:18,014 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable111 [2021-03-24 20:15:18,014 INFO L428 AbstractCegarLoop]: === Iteration 113 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:18,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:18,015 INFO L82 PathProgramCache]: Analyzing trace with hash 96907695, now seen corresponding path program 92 times [2021-03-24 20:15:18,015 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:18,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328664161] [2021-03-24 20:15:18,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:18,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:18,075 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:18,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:18,076 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:18,076 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:18,089 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:18,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:18,117 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:18,117 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:18,168 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:18,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:18,234 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:18,235 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:18,319 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:18,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:18,347 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:18,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:18,375 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:18,376 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:18,428 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:18,429 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:18,479 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:18,480 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:18,517 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:18,518 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:18,561 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:18,562 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:18,607 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:18,607 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:18,625 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:18,625 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:18,666 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:18,666 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:18,710 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:15:18,710 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:15:18,755 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:18,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:18,784 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:18,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:18,815 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:18,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:18,838 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:18,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:18,867 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:18,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:18,898 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:18,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:18,928 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:18,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:18,929 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:18,929 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:18,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:18,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328664161] [2021-03-24 20:15:18,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:18,957 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:18,957 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887805971] [2021-03-24 20:15:18,957 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:18,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:18,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:18,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:18,959 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:18,960 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 240 places, 250 transitions, 3578 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:18,960 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:18,960 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:18,960 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:19,840 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:15:20,130 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:15:20,933 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:15:21,384 INFO L129 PetriNetUnfolder]: 373/1440 cut-off events. [2021-03-24 20:15:21,384 INFO L130 PetriNetUnfolder]: For 14964/14970 co-relation queries the response was YES. [2021-03-24 20:15:21,392 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8906 conditions, 1440 events. 373/1440 cut-off events. For 14964/14970 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 12378 event pairs, 203 based on Foata normal form. 4/1431 useless extension candidates. Maximal degree in co-relation 8830. Up to 1080 conditions per place. [2021-03-24 20:15:21,395 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 194 selfloop transitions, 63 changer transitions 21/288 dead transitions. [2021-03-24 20:15:21,395 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 288 transitions, 4582 flow [2021-03-24 20:15:21,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:21,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:21,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2021-03-24 20:15:21,397 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4944044764188649 [2021-03-24 20:15:21,397 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2474 transitions. [2021-03-24 20:15:21,397 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2474 transitions. [2021-03-24 20:15:21,397 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:21,397 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2474 transitions. [2021-03-24 20:15:21,399 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.44444444444446) internal successors, (2474), 18 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:21,400 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:21,401 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:21,401 INFO L185 Difference]: Start difference. First operand has 240 places, 250 transitions, 3578 flow. Second operand 18 states and 2474 transitions. [2021-03-24 20:15:21,401 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 288 transitions, 4582 flow [2021-03-24 20:15:21,448 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 237 places, 288 transitions, 4465 flow, removed 9 selfloop flow, removed 14 redundant places. [2021-03-24 20:15:21,451 INFO L241 Difference]: Finished difference. Result has 242 places, 255 transitions, 3696 flow [2021-03-24 20:15:21,451 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3471, PETRI_DIFFERENCE_MINUEND_PLACES=220, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=250, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3696, PETRI_PLACES=242, PETRI_TRANSITIONS=255} [2021-03-24 20:15:21,452 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 176 predicate places. [2021-03-24 20:15:21,452 INFO L480 AbstractCegarLoop]: Abstraction has has 242 places, 255 transitions, 3696 flow [2021-03-24 20:15:21,452 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:21,452 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:21,452 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:21,452 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable112 [2021-03-24 20:15:21,452 INFO L428 AbstractCegarLoop]: === Iteration 114 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:21,452 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:21,452 INFO L82 PathProgramCache]: Analyzing trace with hash -74606549, now seen corresponding path program 93 times [2021-03-24 20:15:21,453 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:21,453 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1630149441] [2021-03-24 20:15:21,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:21,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:21,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:21,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:21,516 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:21,516 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:21,527 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:21,528 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:21,551 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:15:21,551 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:15:21,592 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:15:21,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:15:21,646 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:15:21,647 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:15:21,705 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:15:21,706 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:15:21,776 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:15:21,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:15:21,778 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:15:21,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:15:21,805 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:15:21,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:21,833 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:15:21,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:15:21,882 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:15:21,882 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:15:21,923 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:15:21,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:15:21,966 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.9 percent of original size [2021-03-24 20:15:21,967 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:15:22,018 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:15:22,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:15:22,074 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:15:22,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:15:22,099 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:15:22,099 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:15:22,149 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:15:22,150 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:15:22,204 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:15:22,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:15:22,273 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:15:22,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:15:22,305 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:15:22,306 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:15:22,356 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:15:22,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:22,386 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:15:22,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:22,429 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:15:22,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:22,475 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:15:22,476 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:15:22,506 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:15:22,506 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:15:22,507 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:15:22,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:15:22,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:22,538 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1630149441] [2021-03-24 20:15:22,538 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:22,538 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:15:22,539 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1683333426] [2021-03-24 20:15:22,539 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:15:22,539 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:22,539 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:15:22,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:15:22,540 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:15:22,541 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 242 places, 255 transitions, 3696 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:22,541 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:22,541 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:15:22,541 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:23,314 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 59 [2021-03-24 20:15:23,510 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:15:23,838 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:15:24,035 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-03-24 20:15:24,606 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:15:25,091 INFO L129 PetriNetUnfolder]: 359/1407 cut-off events. [2021-03-24 20:15:25,091 INFO L130 PetriNetUnfolder]: For 15117/15123 co-relation queries the response was YES. [2021-03-24 20:15:25,100 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8859 conditions, 1407 events. 359/1407 cut-off events. For 15117/15123 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 12064 event pairs, 205 based on Foata normal form. 4/1398 useless extension candidates. Maximal degree in co-relation 8783. Up to 1076 conditions per place. [2021-03-24 20:15:25,103 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 199 selfloop transitions, 54 changer transitions 26/285 dead transitions. [2021-03-24 20:15:25,103 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 255 places, 285 transitions, 4624 flow [2021-03-24 20:15:25,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:25,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:25,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1607 transitions. [2021-03-24 20:15:25,105 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3211430855315747 [2021-03-24 20:15:25,105 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1607 transitions. [2021-03-24 20:15:25,105 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1607 transitions. [2021-03-24 20:15:25,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:25,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1607 transitions. [2021-03-24 20:15:25,106 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.27777777777777) internal successors, (1607), 18 states have internal predecessors, (1607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:25,108 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:25,108 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:25,108 INFO L185 Difference]: Start difference. First operand has 242 places, 255 transitions, 3696 flow. Second operand 18 states and 1607 transitions. [2021-03-24 20:15:25,108 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 255 places, 285 transitions, 4624 flow [2021-03-24 20:15:25,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 285 transitions, 4459 flow, removed 8 selfloop flow, removed 15 redundant places. [2021-03-24 20:15:25,163 INFO L241 Difference]: Finished difference. Result has 245 places, 253 transitions, 3636 flow [2021-03-24 20:15:25,164 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3538, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3636, PETRI_PLACES=245, PETRI_TRANSITIONS=253} [2021-03-24 20:15:25,164 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 179 predicate places. [2021-03-24 20:15:25,164 INFO L480 AbstractCegarLoop]: Abstraction has has 245 places, 253 transitions, 3636 flow [2021-03-24 20:15:25,164 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:25,164 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:25,164 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:25,164 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable113 [2021-03-24 20:15:25,164 INFO L428 AbstractCegarLoop]: === Iteration 115 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:25,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:25,165 INFO L82 PathProgramCache]: Analyzing trace with hash -388147311, now seen corresponding path program 94 times [2021-03-24 20:15:25,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:25,165 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723643072] [2021-03-24 20:15:25,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:25,234 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:25,234 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:25,235 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:25,235 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:25,246 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:25,247 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:25,272 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:15:25,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:15:25,305 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:15:25,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:25,355 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:15:25,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:25,414 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:15:25,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:15:25,450 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:15:25,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:15:25,484 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.1 percent of original size [2021-03-24 20:15:25,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:15:25,534 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:15:25,535 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:15:25,581 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:15:25,581 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:15:25,634 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.2 percent of original size [2021-03-24 20:15:25,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:15:25,720 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.2 percent of original size [2021-03-24 20:15:25,720 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:15:25,790 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:15:25,790 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:15:25,811 INFO L142 QuantifierPusher]: treesize reduction 44, result has 56.0 percent of original size [2021-03-24 20:15:25,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:15:25,878 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:15:25,878 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:15:25,948 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 20:15:25,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:15:25,990 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:15:25,991 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:15:26,024 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:15:26,024 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:15:26,047 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:15:26,048 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:15:26,079 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:15:26,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:15:26,114 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:15:26,115 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:26,149 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:26,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:26,180 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:26,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:26,181 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:26,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:26,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:26,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723643072] [2021-03-24 20:15:26,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:26,209 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:26,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367278887] [2021-03-24 20:15:26,209 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:26,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:26,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:26,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:26,212 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:26,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 245 places, 253 transitions, 3636 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:26,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:26,213 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:26,213 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:26,863 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-03-24 20:15:27,019 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-03-24 20:15:27,226 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:15:27,597 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:15:27,974 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-03-24 20:15:28,184 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-03-24 20:15:28,936 INFO L129 PetriNetUnfolder]: 354/1388 cut-off events. [2021-03-24 20:15:28,937 INFO L130 PetriNetUnfolder]: For 14630/14636 co-relation queries the response was YES. [2021-03-24 20:15:28,945 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8621 conditions, 1388 events. 354/1388 cut-off events. For 14630/14636 co-relation queries the response was YES. Maximal size of possible extension queue 146. Compared 11842 event pairs, 196 based on Foata normal form. 4/1379 useless extension candidates. Maximal degree in co-relation 8543. Up to 1059 conditions per place. [2021-03-24 20:15:28,947 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 193 selfloop transitions, 65 changer transitions 15/283 dead transitions. [2021-03-24 20:15:28,947 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 257 places, 283 transitions, 4559 flow [2021-03-24 20:15:28,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:15:28,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:15:28,949 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2601 transitions. [2021-03-24 20:15:28,949 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4924271109428247 [2021-03-24 20:15:28,949 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2601 transitions. [2021-03-24 20:15:28,949 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2601 transitions. [2021-03-24 20:15:28,950 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:28,950 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2601 transitions. [2021-03-24 20:15:28,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.89473684210526) internal successors, (2601), 19 states have internal predecessors, (2601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:28,953 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:28,953 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:28,953 INFO L185 Difference]: Start difference. First operand has 245 places, 253 transitions, 3636 flow. Second operand 19 states and 2601 transitions. [2021-03-24 20:15:28,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 257 places, 283 transitions, 4559 flow [2021-03-24 20:15:29,000 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 242 places, 283 transitions, 4435 flow, removed 7 selfloop flow, removed 15 redundant places. [2021-03-24 20:15:29,004 INFO L241 Difference]: Finished difference. Result has 247 places, 258 transitions, 3764 flow [2021-03-24 20:15:29,004 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3518, PETRI_DIFFERENCE_MINUEND_PLACES=224, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=253, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=188, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3764, PETRI_PLACES=247, PETRI_TRANSITIONS=258} [2021-03-24 20:15:29,004 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 181 predicate places. [2021-03-24 20:15:29,004 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 258 transitions, 3764 flow [2021-03-24 20:15:29,005 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:29,005 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:29,005 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:29,005 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable114 [2021-03-24 20:15:29,005 INFO L428 AbstractCegarLoop]: === Iteration 116 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:29,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:29,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1671518807, now seen corresponding path program 95 times [2021-03-24 20:15:29,005 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:29,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1600384919] [2021-03-24 20:15:29,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:29,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:29,077 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:29,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:29,078 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:29,078 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:29,092 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:29,092 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:29,122 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:29,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:29,170 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:29,170 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:29,226 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:29,226 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:29,290 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:29,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:29,311 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:29,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:29,332 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:29,332 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:29,371 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:29,372 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:29,407 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:29,407 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:29,442 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:29,442 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:29,492 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:29,493 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:29,542 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:29,543 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:29,564 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:29,565 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:29,615 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:29,615 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:29,670 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 20:15:29,670 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:15:29,699 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 20:15:29,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:15:29,729 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:29,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:29,759 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:29,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:29,781 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:29,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:29,810 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:29,810 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:29,842 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:29,843 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:29,873 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:29,873 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:29,874 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:29,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:29,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:29,904 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1600384919] [2021-03-24 20:15:29,904 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:29,904 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:29,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966467345] [2021-03-24 20:15:29,904 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:29,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:29,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:29,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:29,906 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:29,907 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 258 transitions, 3764 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:29,907 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:29,907 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:29,907 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:30,665 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:30,829 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:15:31,155 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:15:31,675 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-24 20:15:31,938 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 20:15:32,361 INFO L129 PetriNetUnfolder]: 337/1354 cut-off events. [2021-03-24 20:15:32,361 INFO L130 PetriNetUnfolder]: For 15518/15524 co-relation queries the response was YES. [2021-03-24 20:15:32,369 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8598 conditions, 1354 events. 337/1354 cut-off events. For 15518/15524 co-relation queries the response was YES. Maximal size of possible extension queue 139. Compared 11594 event pairs, 200 based on Foata normal form. 5/1346 useless extension candidates. Maximal degree in co-relation 8519. Up to 1036 conditions per place. [2021-03-24 20:15:32,372 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 191 selfloop transitions, 62 changer transitions 11/274 dead transitions. [2021-03-24 20:15:32,372 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 261 places, 274 transitions, 4478 flow [2021-03-24 20:15:32,373 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:32,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:32,374 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 20:15:32,374 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 20:15:32,374 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 20:15:32,374 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 20:15:32,375 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:32,375 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 20:15:32,376 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.83333333333334) internal successors, (2463), 18 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:32,378 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:32,378 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:32,378 INFO L185 Difference]: Start difference. First operand has 247 places, 258 transitions, 3764 flow. Second operand 18 states and 2463 transitions. [2021-03-24 20:15:32,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 261 places, 274 transitions, 4478 flow [2021-03-24 20:15:32,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 249 places, 274 transitions, 4299 flow, removed 29 selfloop flow, removed 12 redundant places. [2021-03-24 20:15:32,434 INFO L241 Difference]: Finished difference. Result has 251 places, 256 transitions, 3711 flow [2021-03-24 20:15:32,434 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3608, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=258, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=62, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3711, PETRI_PLACES=251, PETRI_TRANSITIONS=256} [2021-03-24 20:15:32,434 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 185 predicate places. [2021-03-24 20:15:32,434 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 256 transitions, 3711 flow [2021-03-24 20:15:32,434 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:32,434 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:32,434 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:32,434 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable115 [2021-03-24 20:15:32,434 INFO L428 AbstractCegarLoop]: === Iteration 117 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:32,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:32,435 INFO L82 PathProgramCache]: Analyzing trace with hash 856637567, now seen corresponding path program 96 times [2021-03-24 20:15:32,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:32,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1637544012] [2021-03-24 20:15:32,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:32,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:32,500 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:32,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:32,501 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:32,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:32,520 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:32,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:32,555 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:15:32,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:15:32,597 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:15:32,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:32,648 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:15:32,649 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:32,707 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:15:32,708 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:15:32,778 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:15:32,778 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:32,779 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:15:32,779 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:32,802 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:15:32,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:32,826 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:15:32,826 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:15:32,856 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:15:32,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:15:32,886 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:15:32,887 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:15:32,917 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:15:32,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:15:32,955 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:15:32,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:15:32,998 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:15:32,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:33,020 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:15:33,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:33,052 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:15:33,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:33,086 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:15:33,087 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:15:33,119 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:15:33,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:15:33,152 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:15:33,153 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:15:33,176 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:15:33,177 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:15:33,208 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:15:33,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:33,240 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:15:33,240 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:33,276 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:33,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:33,310 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:33,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:33,311 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:33,311 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:33,343 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:33,343 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1637544012] [2021-03-24 20:15:33,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:33,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:15:33,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996265827] [2021-03-24 20:15:33,343 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:15:33,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:33,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:15:33,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:15:33,345 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:15:33,346 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 256 transitions, 3711 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:33,346 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:33,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:15:33,346 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:34,146 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:34,317 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:15:34,668 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:15:35,057 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-24 20:15:35,255 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-24 20:15:35,438 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 20:15:36,025 INFO L129 PetriNetUnfolder]: 332/1327 cut-off events. [2021-03-24 20:15:36,025 INFO L130 PetriNetUnfolder]: For 14984/15001 co-relation queries the response was YES. [2021-03-24 20:15:36,034 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8446 conditions, 1327 events. 332/1327 cut-off events. For 14984/15001 co-relation queries the response was YES. Maximal size of possible extension queue 135. Compared 11275 event pairs, 198 based on Foata normal form. 10/1323 useless extension candidates. Maximal degree in co-relation 8366. Up to 1029 conditions per place. [2021-03-24 20:15:36,036 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 191 selfloop transitions, 59 changer transitions 15/271 dead transitions. [2021-03-24 20:15:36,036 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 271 transitions, 4399 flow [2021-03-24 20:15:36,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:15:36,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:15:36,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1690 transitions. [2021-03-24 20:15:36,038 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31995456266565697 [2021-03-24 20:15:36,038 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1690 transitions. [2021-03-24 20:15:36,038 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1690 transitions. [2021-03-24 20:15:36,039 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:36,039 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1690 transitions. [2021-03-24 20:15:36,039 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 88.94736842105263) internal successors, (1690), 19 states have internal predecessors, (1690), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:36,041 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:36,042 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:36,042 INFO L185 Difference]: Start difference. First operand has 251 places, 256 transitions, 3711 flow. Second operand 19 states and 1690 transitions. [2021-03-24 20:15:36,042 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 271 transitions, 4399 flow [2021-03-24 20:15:36,098 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 271 transitions, 4262 flow, removed 5 selfloop flow, removed 16 redundant places. [2021-03-24 20:15:36,102 INFO L241 Difference]: Finished difference. Result has 251 places, 249 transitions, 3565 flow [2021-03-24 20:15:36,102 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3578, PETRI_DIFFERENCE_MINUEND_PLACES=232, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=59, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3565, PETRI_PLACES=251, PETRI_TRANSITIONS=249} [2021-03-24 20:15:36,102 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 185 predicate places. [2021-03-24 20:15:36,102 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 249 transitions, 3565 flow [2021-03-24 20:15:36,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:36,102 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:36,102 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:36,102 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable116 [2021-03-24 20:15:36,102 INFO L428 AbstractCegarLoop]: === Iteration 118 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:36,103 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:36,103 INFO L82 PathProgramCache]: Analyzing trace with hash 115122295, now seen corresponding path program 97 times [2021-03-24 20:15:36,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:36,103 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [78245881] [2021-03-24 20:15:36,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:36,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:36,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:36,168 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:36,169 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:36,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:36,185 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:36,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:36,215 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:36,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:36,250 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:36,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:36,307 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:36,308 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:36,379 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:36,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:36,402 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:36,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:36,425 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:36,426 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:36,468 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:36,469 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:36,505 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:36,505 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:36,543 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:36,543 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:36,589 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:36,590 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:36,606 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:36,607 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:36,649 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:15:36,649 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:15:36,692 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:15:36,692 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:15:36,738 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:36,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:36,767 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:36,768 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:36,798 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:36,799 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:36,832 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:36,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:36,857 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:36,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:36,890 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:36,891 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:36,925 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:36,925 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:36,957 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:36,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:36,958 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:36,958 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:36,988 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:36,988 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [78245881] [2021-03-24 20:15:36,989 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:36,989 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:36,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908482269] [2021-03-24 20:15:36,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:36,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:36,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:36,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:36,992 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:36,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 249 transitions, 3565 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:36,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:36,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:36,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:37,769 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:38,006 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:15:38,238 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-03-24 20:15:38,783 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 20:15:39,045 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 20:15:39,548 INFO L129 PetriNetUnfolder]: 367/1422 cut-off events. [2021-03-24 20:15:39,549 INFO L130 PetriNetUnfolder]: For 15552/15558 co-relation queries the response was YES. [2021-03-24 20:15:39,557 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8870 conditions, 1422 events. 367/1422 cut-off events. For 15552/15558 co-relation queries the response was YES. Maximal size of possible extension queue 148. Compared 12252 event pairs, 213 based on Foata normal form. 4/1413 useless extension candidates. Maximal degree in co-relation 8791. Up to 1051 conditions per place. [2021-03-24 20:15:39,559 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 198 selfloop transitions, 54 changer transitions 27/289 dead transitions. [2021-03-24 20:15:39,559 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 289 transitions, 4673 flow [2021-03-24 20:15:39,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:39,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:39,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2467 transitions. [2021-03-24 20:15:39,561 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49300559552358114 [2021-03-24 20:15:39,561 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2467 transitions. [2021-03-24 20:15:39,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2467 transitions. [2021-03-24 20:15:39,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:39,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2467 transitions. [2021-03-24 20:15:39,563 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.05555555555554) internal successors, (2467), 18 states have internal predecessors, (2467), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:39,565 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:39,565 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:39,565 INFO L185 Difference]: Start difference. First operand has 251 places, 249 transitions, 3565 flow. Second operand 18 states and 2467 transitions. [2021-03-24 20:15:39,565 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 289 transitions, 4673 flow [2021-03-24 20:15:39,618 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 289 transitions, 4515 flow, removed 14 selfloop flow, removed 20 redundant places. [2021-03-24 20:15:39,621 INFO L241 Difference]: Finished difference. Result has 251 places, 251 transitions, 3622 flow [2021-03-24 20:15:39,621 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3431, PETRI_DIFFERENCE_MINUEND_PLACES=227, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=249, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3622, PETRI_PLACES=251, PETRI_TRANSITIONS=251} [2021-03-24 20:15:39,621 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 185 predicate places. [2021-03-24 20:15:39,621 INFO L480 AbstractCegarLoop]: Abstraction has has 251 places, 251 transitions, 3622 flow [2021-03-24 20:15:39,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:39,621 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:39,622 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:39,622 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable117 [2021-03-24 20:15:39,622 INFO L428 AbstractCegarLoop]: === Iteration 119 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:39,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:39,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1832867149, now seen corresponding path program 98 times [2021-03-24 20:15:39,622 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:39,622 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735924955] [2021-03-24 20:15:39,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:39,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:39,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:39,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:39,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:39,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:39,693 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:39,693 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:39,717 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:39,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:39,751 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:39,752 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:39,800 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:39,801 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:39,867 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:39,867 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:39,889 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:39,889 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:39,912 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:39,912 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:39,954 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:39,954 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:39,992 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:39,992 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:40,033 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:40,034 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:40,089 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:40,089 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:40,108 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:40,108 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:40,150 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:40,150 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:40,195 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:15:40,195 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:15:40,243 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:40,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:40,273 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:40,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:40,303 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:40,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:40,334 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:40,334 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:40,356 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:40,356 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:40,388 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:40,389 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:40,423 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:40,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:40,455 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:40,455 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:40,456 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:40,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:40,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:40,485 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735924955] [2021-03-24 20:15:40,485 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:40,485 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:40,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071241278] [2021-03-24 20:15:40,486 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:40,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:40,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:40,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:40,488 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:40,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 251 places, 251 transitions, 3622 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:40,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:40,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:40,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:41,273 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:41,511 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:15:42,288 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 20:15:42,564 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 20:15:43,084 INFO L129 PetriNetUnfolder]: 355/1386 cut-off events. [2021-03-24 20:15:43,084 INFO L130 PetriNetUnfolder]: For 15419/15425 co-relation queries the response was YES. [2021-03-24 20:15:43,092 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8745 conditions, 1386 events. 355/1386 cut-off events. For 15419/15425 co-relation queries the response was YES. Maximal size of possible extension queue 143. Compared 11840 event pairs, 167 based on Foata normal form. 4/1377 useless extension candidates. Maximal degree in co-relation 8663. Up to 919 conditions per place. [2021-03-24 20:15:43,095 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 193 selfloop transitions, 60 changer transitions 39/302 dead transitions. [2021-03-24 20:15:43,095 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 263 places, 302 transitions, 4894 flow [2021-03-24 20:15:43,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:43,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:43,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 20:15:43,097 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 20:15:43,097 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 20:15:43,097 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 20:15:43,097 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:43,097 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 20:15:43,099 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.38888888888889) internal successors, (2473), 18 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:43,101 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:43,101 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:43,101 INFO L185 Difference]: Start difference. First operand has 251 places, 251 transitions, 3622 flow. Second operand 18 states and 2473 transitions. [2021-03-24 20:15:43,101 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 263 places, 302 transitions, 4894 flow [2021-03-24 20:15:43,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 302 transitions, 4772 flow, removed 24 selfloop flow, removed 13 redundant places. [2021-03-24 20:15:43,154 INFO L241 Difference]: Finished difference. Result has 255 places, 252 transitions, 3719 flow [2021-03-24 20:15:43,154 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3525, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=251, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=58, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3719, PETRI_PLACES=255, PETRI_TRANSITIONS=252} [2021-03-24 20:15:43,154 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 189 predicate places. [2021-03-24 20:15:43,154 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 252 transitions, 3719 flow [2021-03-24 20:15:43,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:43,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:43,154 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:43,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable118 [2021-03-24 20:15:43,155 INFO L428 AbstractCegarLoop]: === Iteration 120 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:43,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:43,155 INFO L82 PathProgramCache]: Analyzing trace with hash -2010755275, now seen corresponding path program 99 times [2021-03-24 20:15:43,155 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:43,155 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582758973] [2021-03-24 20:15:43,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:43,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:43,214 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:43,215 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:43,215 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:43,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:43,228 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:43,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:43,255 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:43,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:43,303 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:43,304 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:43,370 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:43,371 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:43,461 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:43,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:43,491 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:43,492 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:43,519 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:43,520 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:43,563 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:43,563 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:43,601 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:43,602 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:43,640 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:43,641 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:43,689 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:43,690 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:43,705 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:43,706 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:43,745 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:43,745 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:43,790 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:43,790 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:43,836 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 20:15:43,837 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:15:43,867 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:43,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:43,899 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:43,899 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:43,934 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:43,934 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:43,959 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:43,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:43,992 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:43,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:44,029 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:44,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:44,063 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:44,063 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:44,064 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:44,064 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:44,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:44,095 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582758973] [2021-03-24 20:15:44,095 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:44,096 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:44,096 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [966286393] [2021-03-24 20:15:44,096 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:44,096 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:44,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:44,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:44,097 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:44,098 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 252 transitions, 3719 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:44,098 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:44,099 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:44,099 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:44,885 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:45,136 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:15:45,366 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:15:45,922 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-24 20:15:46,185 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-03-24 20:15:46,699 INFO L129 PetriNetUnfolder]: 319/1302 cut-off events. [2021-03-24 20:15:46,700 INFO L130 PetriNetUnfolder]: For 14847/14853 co-relation queries the response was YES. [2021-03-24 20:15:46,706 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8341 conditions, 1302 events. 319/1302 cut-off events. For 14847/14853 co-relation queries the response was YES. Maximal size of possible extension queue 129. Compared 11088 event pairs, 173 based on Foata normal form. 4/1291 useless extension candidates. Maximal degree in co-relation 8259. Up to 954 conditions per place. [2021-03-24 20:15:46,708 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 202 selfloop transitions, 59 changer transitions 20/291 dead transitions. [2021-03-24 20:15:46,708 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 267 places, 291 transitions, 4825 flow [2021-03-24 20:15:46,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:46,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:46,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2469 transitions. [2021-03-24 20:15:46,710 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4934052757793765 [2021-03-24 20:15:46,710 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2469 transitions. [2021-03-24 20:15:46,710 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2469 transitions. [2021-03-24 20:15:46,711 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:46,711 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2469 transitions. [2021-03-24 20:15:46,712 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.16666666666666) internal successors, (2469), 18 states have internal predecessors, (2469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:46,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:46,714 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:46,714 INFO L185 Difference]: Start difference. First operand has 255 places, 252 transitions, 3719 flow. Second operand 18 states and 2469 transitions. [2021-03-24 20:15:46,714 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 267 places, 291 transitions, 4825 flow [2021-03-24 20:15:46,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 291 transitions, 4627 flow, removed 26 selfloop flow, removed 17 redundant places. [2021-03-24 20:15:46,767 INFO L241 Difference]: Finished difference. Result has 256 places, 259 transitions, 3835 flow [2021-03-24 20:15:46,768 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3558, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=252, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3835, PETRI_PLACES=256, PETRI_TRANSITIONS=259} [2021-03-24 20:15:46,768 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 190 predicate places. [2021-03-24 20:15:46,768 INFO L480 AbstractCegarLoop]: Abstraction has has 256 places, 259 transitions, 3835 flow [2021-03-24 20:15:46,768 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:46,768 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:46,768 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:46,768 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable119 [2021-03-24 20:15:46,769 INFO L428 AbstractCegarLoop]: === Iteration 121 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:46,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:46,769 INFO L82 PathProgramCache]: Analyzing trace with hash -928064047, now seen corresponding path program 100 times [2021-03-24 20:15:46,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:46,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860116644] [2021-03-24 20:15:46,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:46,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:46,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:46,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:46,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:46,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:46,833 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:46,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:46,858 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:46,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:46,894 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:46,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:46,943 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:46,944 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:47,009 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:47,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:47,031 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:47,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:47,052 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:47,053 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:47,091 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:47,092 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:47,128 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:47,128 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:47,165 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:47,165 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:47,212 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:47,212 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:47,229 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:47,230 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:47,273 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:47,274 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:47,320 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 20:15:47,320 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:15:47,349 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 20:15:47,349 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:15:47,378 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:47,378 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:47,408 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:47,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:47,439 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:47,440 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:47,462 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:47,462 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:47,491 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:47,491 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:47,523 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:47,523 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:47,552 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:47,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:47,553 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:47,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:47,581 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:47,581 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860116644] [2021-03-24 20:15:47,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:47,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:47,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788549955] [2021-03-24 20:15:47,582 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:47,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:47,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:47,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:47,583 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:47,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 256 places, 259 transitions, 3835 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:47,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:47,584 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:47,584 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:48,325 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:48,545 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:15:49,280 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 20:15:49,550 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 20:15:50,038 INFO L129 PetriNetUnfolder]: 308/1265 cut-off events. [2021-03-24 20:15:50,038 INFO L130 PetriNetUnfolder]: For 14100/14106 co-relation queries the response was YES. [2021-03-24 20:15:50,047 INFO L84 FinitePrefix]: Finished finitePrefix Result has 8011 conditions, 1265 events. 308/1265 cut-off events. For 14100/14106 co-relation queries the response was YES. Maximal size of possible extension queue 126. Compared 10629 event pairs, 147 based on Foata normal form. 4/1254 useless extension candidates. Maximal degree in co-relation 7930. Up to 850 conditions per place. [2021-03-24 20:15:50,049 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 196 selfloop transitions, 70 changer transitions 28/304 dead transitions. [2021-03-24 20:15:50,049 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 304 transitions, 5011 flow [2021-03-24 20:15:50,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:50,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:50,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2474 transitions. [2021-03-24 20:15:50,055 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4944044764188649 [2021-03-24 20:15:50,055 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2474 transitions. [2021-03-24 20:15:50,055 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2474 transitions. [2021-03-24 20:15:50,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:50,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2474 transitions. [2021-03-24 20:15:50,058 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.44444444444446) internal successors, (2474), 18 states have internal predecessors, (2474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:50,060 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:50,061 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:50,061 INFO L185 Difference]: Start difference. First operand has 256 places, 259 transitions, 3835 flow. Second operand 18 states and 2474 transitions. [2021-03-24 20:15:50,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 304 transitions, 5011 flow [2021-03-24 20:15:50,119 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 304 transitions, 4856 flow, removed 24 selfloop flow, removed 14 redundant places. [2021-03-24 20:15:50,123 INFO L241 Difference]: Finished difference. Result has 260 places, 264 transitions, 3987 flow [2021-03-24 20:15:50,123 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3703, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=192, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3987, PETRI_PLACES=260, PETRI_TRANSITIONS=264} [2021-03-24 20:15:50,123 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 194 predicate places. [2021-03-24 20:15:50,123 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 264 transitions, 3987 flow [2021-03-24 20:15:50,123 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:50,123 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:50,124 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:50,124 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable120 [2021-03-24 20:15:50,124 INFO L428 AbstractCegarLoop]: === Iteration 122 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:50,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:50,124 INFO L82 PathProgramCache]: Analyzing trace with hash -1415903029, now seen corresponding path program 101 times [2021-03-24 20:15:50,124 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:50,124 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604565469] [2021-03-24 20:15:50,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:50,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:50,178 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:50,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:50,179 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:50,179 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:50,191 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:50,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:50,217 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:50,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:50,251 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:50,251 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:50,305 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:50,305 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:50,371 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:50,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:50,393 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:50,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:50,415 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:50,415 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:50,456 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:50,456 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:50,495 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:50,496 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:50,536 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:50,536 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:50,586 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:50,587 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:50,604 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:50,605 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:50,648 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:15:50,649 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:15:50,693 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:15:50,694 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:15:50,738 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:15:50,739 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:15:50,787 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:50,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:50,818 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:50,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:50,851 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:50,852 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:50,875 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:50,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:50,906 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:50,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:50,939 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:50,940 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:50,970 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:50,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:50,971 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:50,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:51,000 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:51,001 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604565469] [2021-03-24 20:15:51,001 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:51,001 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:51,001 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69442850] [2021-03-24 20:15:51,001 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:51,001 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:51,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:51,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:51,004 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:51,004 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 264 transitions, 3987 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:51,005 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:51,005 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:51,005 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:51,751 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:51,986 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:15:52,194 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 63 [2021-03-24 20:15:52,432 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 20:15:52,763 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:15:52,960 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:15:53,362 INFO L129 PetriNetUnfolder]: 263/1137 cut-off events. [2021-03-24 20:15:53,362 INFO L130 PetriNetUnfolder]: For 13224/13230 co-relation queries the response was YES. [2021-03-24 20:15:53,368 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7375 conditions, 1137 events. 263/1137 cut-off events. For 13224/13230 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9387 event pairs, 141 based on Foata normal form. 4/1126 useless extension candidates. Maximal degree in co-relation 7293. Up to 871 conditions per place. [2021-03-24 20:15:53,371 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 202 selfloop transitions, 50 changer transitions 13/275 dead transitions. [2021-03-24 20:15:53,371 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 273 places, 275 transitions, 4646 flow [2021-03-24 20:15:53,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:53,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:53,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2455 transitions. [2021-03-24 20:15:53,373 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.490607513988809 [2021-03-24 20:15:53,373 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2455 transitions. [2021-03-24 20:15:53,373 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2455 transitions. [2021-03-24 20:15:53,373 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:53,373 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2455 transitions. [2021-03-24 20:15:53,375 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.38888888888889) internal successors, (2455), 18 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:53,376 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:53,377 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:53,377 INFO L185 Difference]: Start difference. First operand has 260 places, 264 transitions, 3987 flow. Second operand 18 states and 2455 transitions. [2021-03-24 20:15:53,377 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 273 places, 275 transitions, 4646 flow [2021-03-24 20:15:53,425 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 275 transitions, 4474 flow, removed 19 selfloop flow, removed 14 redundant places. [2021-03-24 20:15:53,428 INFO L241 Difference]: Finished difference. Result has 263 places, 260 transitions, 3852 flow [2021-03-24 20:15:53,428 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3818, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=264, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=50, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=214, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3852, PETRI_PLACES=263, PETRI_TRANSITIONS=260} [2021-03-24 20:15:53,428 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 197 predicate places. [2021-03-24 20:15:53,428 INFO L480 AbstractCegarLoop]: Abstraction has has 263 places, 260 transitions, 3852 flow [2021-03-24 20:15:53,429 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:53,429 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:53,429 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:53,429 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable121 [2021-03-24 20:15:53,429 INFO L428 AbstractCegarLoop]: === Iteration 123 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:53,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:53,429 INFO L82 PathProgramCache]: Analyzing trace with hash 1930001737, now seen corresponding path program 102 times [2021-03-24 20:15:53,429 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:53,429 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771948467] [2021-03-24 20:15:53,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:53,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:53,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:53,488 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:53,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:53,500 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:53,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:53,525 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:15:53,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:15:53,560 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:15:53,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:15:53,611 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:15:53,612 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:15:53,675 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:15:53,676 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:15:53,696 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:15:53,697 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:15:53,717 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:15:53,718 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:15:53,755 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:53,755 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:53,789 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:15:53,789 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:15:53,823 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:15:53,824 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:15:53,865 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:15:53,866 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:15:53,882 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:53,882 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:53,922 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:15:53,923 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:15:53,966 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:15:53,967 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:15:54,010 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:15:54,011 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:15:54,058 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:15:54,058 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:15:54,089 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:15:54,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:15:54,121 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:54,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:54,143 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:15:54,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:54,174 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:15:54,174 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:54,208 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:54,209 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:54,240 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:15:54,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:54,241 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:54,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:54,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:54,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771948467] [2021-03-24 20:15:54,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:54,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:54,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041757747] [2021-03-24 20:15:54,271 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:54,271 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:54,271 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:54,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:54,273 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:54,274 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 260 transitions, 3852 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:54,274 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:54,274 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:54,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:55,051 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:15:55,290 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:15:55,503 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:15:55,741 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 20:15:56,073 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:15:56,278 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:15:56,689 INFO L129 PetriNetUnfolder]: 261/1113 cut-off events. [2021-03-24 20:15:56,689 INFO L130 PetriNetUnfolder]: For 12672/12678 co-relation queries the response was YES. [2021-03-24 20:15:56,696 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7159 conditions, 1113 events. 261/1113 cut-off events. For 12672/12678 co-relation queries the response was YES. Maximal size of possible extension queue 107. Compared 9081 event pairs, 139 based on Foata normal form. 4/1102 useless extension candidates. Maximal degree in co-relation 7077. Up to 855 conditions per place. [2021-03-24 20:15:56,698 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 199 selfloop transitions, 49 changer transitions 12/270 dead transitions. [2021-03-24 20:15:56,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 270 transitions, 4477 flow [2021-03-24 20:15:56,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:15:56,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:15:56,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2455 transitions. [2021-03-24 20:15:56,700 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.490607513988809 [2021-03-24 20:15:56,700 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2455 transitions. [2021-03-24 20:15:56,700 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2455 transitions. [2021-03-24 20:15:56,701 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:15:56,701 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2455 transitions. [2021-03-24 20:15:56,702 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.38888888888889) internal successors, (2455), 18 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:56,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:56,704 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:56,704 INFO L185 Difference]: Start difference. First operand has 263 places, 260 transitions, 3852 flow. Second operand 18 states and 2455 transitions. [2021-03-24 20:15:56,704 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 270 transitions, 4477 flow [2021-03-24 20:15:56,753 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 270 transitions, 4365 flow, removed 5 selfloop flow, removed 15 redundant places. [2021-03-24 20:15:56,757 INFO L241 Difference]: Finished difference. Result has 261 places, 256 transitions, 3771 flow [2021-03-24 20:15:56,757 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3744, PETRI_DIFFERENCE_MINUEND_PLACES=242, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=260, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=49, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=211, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3771, PETRI_PLACES=261, PETRI_TRANSITIONS=256} [2021-03-24 20:15:56,757 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 195 predicate places. [2021-03-24 20:15:56,757 INFO L480 AbstractCegarLoop]: Abstraction has has 261 places, 256 transitions, 3771 flow [2021-03-24 20:15:56,757 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:56,757 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:15:56,757 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:15:56,758 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable122 [2021-03-24 20:15:56,758 INFO L428 AbstractCegarLoop]: === Iteration 124 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:15:56,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:15:56,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1994742801, now seen corresponding path program 103 times [2021-03-24 20:15:56,758 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:15:56,758 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125172056] [2021-03-24 20:15:56,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:15:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:15:56,822 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:56,823 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:15:56,823 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:15:56,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:15:56,835 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:15:56,836 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:15:56,861 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:15:56,862 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:15:56,896 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:15:56,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:15:56,947 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:15:56,948 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:15:57,006 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:15:57,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:15:57,042 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:15:57,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:15:57,076 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.1 percent of original size [2021-03-24 20:15:57,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:15:57,124 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:15:57,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:15:57,180 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:15:57,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:15:57,228 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.2 percent of original size [2021-03-24 20:15:57,229 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:15:57,307 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:15:57,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:15:57,326 INFO L142 QuantifierPusher]: treesize reduction 44, result has 56.0 percent of original size [2021-03-24 20:15:57,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:15:57,400 INFO L142 QuantifierPusher]: treesize reduction 44, result has 56.0 percent of original size [2021-03-24 20:15:57,401 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:15:57,465 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:15:57,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:15:57,528 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 20:15:57,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:15:57,566 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:15:57,567 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:15:57,597 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:15:57,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:15:57,619 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:15:57,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:15:57,648 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:15:57,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:15:57,679 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:15:57,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:15:57,711 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:57,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:57,741 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:15:57,741 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:15:57,742 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:15:57,742 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:15:57,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:15:57,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125172056] [2021-03-24 20:15:57,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:15:57,769 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:15:57,769 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957516746] [2021-03-24 20:15:57,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:15:57,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:15:57,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:15:57,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:15:57,771 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:15:57,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 261 places, 256 transitions, 3771 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:15:57,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:15:57,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:15:57,773 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:15:58,386 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-03-24 20:15:58,547 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-03-24 20:15:58,818 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-03-24 20:15:59,072 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:15:59,439 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-03-24 20:15:59,647 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-03-24 20:16:00,228 INFO L129 PetriNetUnfolder]: 267/1123 cut-off events. [2021-03-24 20:16:00,228 INFO L130 PetriNetUnfolder]: For 13044/13054 co-relation queries the response was YES. [2021-03-24 20:16:00,235 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7245 conditions, 1123 events. 267/1123 cut-off events. For 13044/13054 co-relation queries the response was YES. Maximal size of possible extension queue 110. Compared 9212 event pairs, 134 based on Foata normal form. 4/1110 useless extension candidates. Maximal degree in co-relation 7165. Up to 844 conditions per place. [2021-03-24 20:16:00,237 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 202 selfloop transitions, 57 changer transitions 7/276 dead transitions. [2021-03-24 20:16:00,237 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 276 transitions, 4593 flow [2021-03-24 20:16:00,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:00,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:00,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2458 transitions. [2021-03-24 20:16:00,239 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.491207034372502 [2021-03-24 20:16:00,239 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2458 transitions. [2021-03-24 20:16:00,239 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2458 transitions. [2021-03-24 20:16:00,239 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:00,240 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2458 transitions. [2021-03-24 20:16:00,241 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.55555555555554) internal successors, (2458), 18 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:00,242 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:00,243 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:00,243 INFO L185 Difference]: Start difference. First operand has 261 places, 256 transitions, 3771 flow. Second operand 18 states and 2458 transitions. [2021-03-24 20:16:00,243 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 276 transitions, 4593 flow [2021-03-24 20:16:00,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 276 transitions, 4493 flow, removed 4 selfloop flow, removed 13 redundant places. [2021-03-24 20:16:00,296 INFO L241 Difference]: Finished difference. Result has 262 places, 261 transitions, 3904 flow [2021-03-24 20:16:00,296 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3675, PETRI_DIFFERENCE_MINUEND_PLACES=241, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=256, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3904, PETRI_PLACES=262, PETRI_TRANSITIONS=261} [2021-03-24 20:16:00,296 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 196 predicate places. [2021-03-24 20:16:00,296 INFO L480 AbstractCegarLoop]: Abstraction has has 262 places, 261 transitions, 3904 flow [2021-03-24 20:16:00,296 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:00,297 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:00,297 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:00,297 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable123 [2021-03-24 20:16:00,297 INFO L428 AbstractCegarLoop]: === Iteration 125 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:00,297 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:00,297 INFO L82 PathProgramCache]: Analyzing trace with hash 1345662855, now seen corresponding path program 104 times [2021-03-24 20:16:00,297 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:00,297 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779041630] [2021-03-24 20:16:00,297 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:00,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:00,345 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:00,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:00,346 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:00,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:00,359 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:00,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:00,384 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:16:00,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:00,419 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:16:00,420 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:16:00,469 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:16:00,470 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:16:00,532 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:16:00,532 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:00,553 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:16:00,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:00,573 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:16:00,574 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:16:00,613 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:16:00,613 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:16:00,648 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:16:00,648 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:16:00,683 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:16:00,684 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:16:00,727 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:16:00,728 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:16:00,742 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:16:00,743 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:16:00,781 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:16:00,782 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:16:00,822 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:16:00,822 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:16:00,876 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 20:16:00,876 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:00,903 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 20:16:00,904 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:16:00,932 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:16:00,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:00,962 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:16:00,962 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:00,983 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:16:00,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:01,012 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:16:01,012 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:01,043 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:16:01,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:01,072 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:16:01,072 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:01,073 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:01,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:01,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:01,100 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779041630] [2021-03-24 20:16:01,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:01,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:01,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007010567] [2021-03-24 20:16:01,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:01,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:01,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:01,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:01,102 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:01,103 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 262 places, 261 transitions, 3904 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:01,103 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:01,103 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:01,103 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:02,047 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:16:02,261 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:16:02,943 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 20:16:03,343 INFO L129 PetriNetUnfolder]: 264/1129 cut-off events. [2021-03-24 20:16:03,344 INFO L130 PetriNetUnfolder]: For 13544/13550 co-relation queries the response was YES. [2021-03-24 20:16:03,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7323 conditions, 1129 events. 264/1129 cut-off events. For 13544/13550 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9298 event pairs, 142 based on Foata normal form. 5/1119 useless extension candidates. Maximal degree in co-relation 7241. Up to 845 conditions per place. [2021-03-24 20:16:03,354 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 200 selfloop transitions, 54 changer transitions 11/275 dead transitions. [2021-03-24 20:16:03,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 277 places, 275 transitions, 4603 flow [2021-03-24 20:16:03,355 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:03,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:03,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2458 transitions. [2021-03-24 20:16:03,356 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.491207034372502 [2021-03-24 20:16:03,356 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2458 transitions. [2021-03-24 20:16:03,356 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2458 transitions. [2021-03-24 20:16:03,356 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:03,356 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2458 transitions. [2021-03-24 20:16:03,358 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.55555555555554) internal successors, (2458), 18 states have internal predecessors, (2458), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:03,359 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:03,360 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:03,360 INFO L185 Difference]: Start difference. First operand has 262 places, 261 transitions, 3904 flow. Second operand 18 states and 2458 transitions. [2021-03-24 20:16:03,360 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 277 places, 275 transitions, 4603 flow [2021-03-24 20:16:03,411 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 265 places, 275 transitions, 4422 flow, removed 38 selfloop flow, removed 12 redundant places. [2021-03-24 20:16:03,414 INFO L241 Difference]: Finished difference. Result has 267 places, 259 transitions, 3834 flow [2021-03-24 20:16:03,414 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3750, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=261, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=54, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3834, PETRI_PLACES=267, PETRI_TRANSITIONS=259} [2021-03-24 20:16:03,414 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 201 predicate places. [2021-03-24 20:16:03,414 INFO L480 AbstractCegarLoop]: Abstraction has has 267 places, 259 transitions, 3834 flow [2021-03-24 20:16:03,415 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:03,415 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:03,415 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:03,415 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable124 [2021-03-24 20:16:03,415 INFO L428 AbstractCegarLoop]: === Iteration 126 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:03,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:03,415 INFO L82 PathProgramCache]: Analyzing trace with hash -421148067, now seen corresponding path program 105 times [2021-03-24 20:16:03,415 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:03,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024956023] [2021-03-24 20:16:03,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:03,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:03,487 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:03,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:03,489 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:03,489 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:03,503 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:03,503 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:03,531 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:16:03,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:03,565 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:16:03,565 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:16:03,617 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:03,617 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:03,676 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:16:03,677 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:16:03,747 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:03,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:03,748 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:16:03,749 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:03,773 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:16:03,773 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:03,797 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:16:03,798 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:16:03,825 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:03,825 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:03,851 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:03,851 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:03,876 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:16:03,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:16:03,909 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:03,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:03,926 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:16:03,926 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:03,955 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:16:03,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:03,987 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:03,987 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:04,020 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:16:04,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:04,050 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:16:04,050 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:16:04,082 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:16:04,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:16:04,105 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:16:04,106 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:16:04,136 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:04,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:04,168 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:04,169 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:04,203 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:04,204 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:04,236 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:04,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:04,237 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:04,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:04,268 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:04,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024956023] [2021-03-24 20:16:04,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:04,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:16:04,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [599774070] [2021-03-24 20:16:04,268 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:16:04,268 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:04,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:16:04,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:16:04,270 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:16:04,271 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 259 transitions, 3834 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:04,271 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:04,271 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:16:04,271 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:05,058 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:16:05,293 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:16:05,505 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:16:06,044 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-24 20:16:06,217 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 20:16:06,739 INFO L129 PetriNetUnfolder]: 259/1102 cut-off events. [2021-03-24 20:16:06,739 INFO L130 PetriNetUnfolder]: For 12813/12819 co-relation queries the response was YES. [2021-03-24 20:16:06,750 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7138 conditions, 1102 events. 259/1102 cut-off events. For 12813/12819 co-relation queries the response was YES. Maximal size of possible extension queue 108. Compared 8981 event pairs, 140 based on Foata normal form. 4/1091 useless extension candidates. Maximal degree in co-relation 7055. Up to 838 conditions per place. [2021-03-24 20:16:06,753 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 201 selfloop transitions, 52 changer transitions 13/272 dead transitions. [2021-03-24 20:16:06,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 282 places, 272 transitions, 4505 flow [2021-03-24 20:16:06,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:16:06,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:16:06,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1685 transitions. [2021-03-24 20:16:06,756 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31900795153351 [2021-03-24 20:16:06,756 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1685 transitions. [2021-03-24 20:16:06,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1685 transitions. [2021-03-24 20:16:06,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:06,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1685 transitions. [2021-03-24 20:16:06,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 88.6842105263158) internal successors, (1685), 19 states have internal predecessors, (1685), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:06,760 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:06,760 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:06,760 INFO L185 Difference]: Start difference. First operand has 267 places, 259 transitions, 3834 flow. Second operand 19 states and 1685 transitions. [2021-03-24 20:16:06,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 282 places, 272 transitions, 4505 flow [2021-03-24 20:16:06,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 272 transitions, 4372 flow, removed 2 selfloop flow, removed 16 redundant places. [2021-03-24 20:16:06,834 INFO L241 Difference]: Finished difference. Result has 267 places, 254 transitions, 3726 flow [2021-03-24 20:16:06,834 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3705, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=259, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=52, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=207, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3726, PETRI_PLACES=267, PETRI_TRANSITIONS=254} [2021-03-24 20:16:06,835 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 201 predicate places. [2021-03-24 20:16:06,835 INFO L480 AbstractCegarLoop]: Abstraction has has 267 places, 254 transitions, 3726 flow [2021-03-24 20:16:06,835 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:06,835 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:06,835 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:06,835 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable125 [2021-03-24 20:16:06,835 INFO L428 AbstractCegarLoop]: === Iteration 127 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:06,836 INFO L82 PathProgramCache]: Analyzing trace with hash 522968259, now seen corresponding path program 106 times [2021-03-24 20:16:06,836 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:06,836 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640633999] [2021-03-24 20:16:06,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:06,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:06,912 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:06,912 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:06,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:06,913 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:06,928 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:06,928 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:06,963 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:16:06,964 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:07,008 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:16:07,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:16:07,077 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:16:07,077 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:07,146 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:16:07,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:07,183 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:16:07,183 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:16:07,216 INFO L142 QuantifierPusher]: treesize reduction 12, result has 82.1 percent of original size [2021-03-24 20:16:07,217 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:16:07,267 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:16:07,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:16:07,312 INFO L142 QuantifierPusher]: treesize reduction 12, result has 79.7 percent of original size [2021-03-24 20:16:07,313 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 47 [2021-03-24 20:16:07,363 INFO L142 QuantifierPusher]: treesize reduction 39, result has 63.2 percent of original size [2021-03-24 20:16:07,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 67 [2021-03-24 20:16:07,445 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:16:07,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:07,463 INFO L142 QuantifierPusher]: treesize reduction 44, result has 56.0 percent of original size [2021-03-24 20:16:07,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:16:07,538 INFO L142 QuantifierPusher]: treesize reduction 39, result has 61.4 percent of original size [2021-03-24 20:16:07,538 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:07,618 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:16:07,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:07,659 INFO L142 QuantifierPusher]: treesize reduction 21, result has 58.0 percent of original size [2021-03-24 20:16:07,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:16:07,700 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:16:07,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:16:07,732 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:16:07,733 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:16:07,756 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:16:07,756 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:16:07,787 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:16:07,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:16:07,820 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:07,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:07,855 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:07,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:07,887 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:07,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:07,888 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:07,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:07,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:07,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640633999] [2021-03-24 20:16:07,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:07,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:07,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330323506] [2021-03-24 20:16:07,919 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:07,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:07,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:07,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=451, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:07,920 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:07,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 254 transitions, 3726 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:07,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:07,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:07,921 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:08,581 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 55 [2021-03-24 20:16:08,743 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 58 [2021-03-24 20:16:09,011 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 60 [2021-03-24 20:16:09,364 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2021-03-24 20:16:09,581 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-03-24 20:16:09,804 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 63 [2021-03-24 20:16:10,564 INFO L129 PetriNetUnfolder]: 260/1106 cut-off events. [2021-03-24 20:16:10,565 INFO L130 PetriNetUnfolder]: For 12779/12785 co-relation queries the response was YES. [2021-03-24 20:16:10,571 INFO L84 FinitePrefix]: Finished finitePrefix Result has 7078 conditions, 1106 events. 260/1106 cut-off events. For 12779/12785 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 9027 event pairs, 129 based on Foata normal form. 4/1096 useless extension candidates. Maximal degree in co-relation 6995. Up to 757 conditions per place. [2021-03-24 20:16:10,573 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 190 selfloop transitions, 67 changer transitions 17/284 dead transitions. [2021-03-24 20:16:10,574 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 284 transitions, 4671 flow [2021-03-24 20:16:10,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:16:10,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:16:10,575 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 2600 transitions. [2021-03-24 20:16:10,576 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922377887163953 [2021-03-24 20:16:10,576 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 2600 transitions. [2021-03-24 20:16:10,576 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 2600 transitions. [2021-03-24 20:16:10,576 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:10,576 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 2600 transitions. [2021-03-24 20:16:10,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 136.8421052631579) internal successors, (2600), 19 states have internal predecessors, (2600), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:10,579 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:10,580 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:10,580 INFO L185 Difference]: Start difference. First operand has 267 places, 254 transitions, 3726 flow. Second operand 19 states and 2600 transitions. [2021-03-24 20:16:10,580 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 284 transitions, 4671 flow [2021-03-24 20:16:10,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 261 places, 284 transitions, 4528 flow, removed 13 selfloop flow, removed 20 redundant places. [2021-03-24 20:16:10,634 INFO L241 Difference]: Finished difference. Result has 265 places, 257 transitions, 3815 flow [2021-03-24 20:16:10,634 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3593, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=254, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=63, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=187, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3815, PETRI_PLACES=265, PETRI_TRANSITIONS=257} [2021-03-24 20:16:10,634 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 199 predicate places. [2021-03-24 20:16:10,634 INFO L480 AbstractCegarLoop]: Abstraction has has 265 places, 257 transitions, 3815 flow [2021-03-24 20:16:10,634 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:10,634 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:10,634 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:10,634 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable126 [2021-03-24 20:16:10,635 INFO L428 AbstractCegarLoop]: === Iteration 128 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:10,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:10,635 INFO L82 PathProgramCache]: Analyzing trace with hash -266556825, now seen corresponding path program 107 times [2021-03-24 20:16:10,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:10,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097842139] [2021-03-24 20:16:10,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:10,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:10,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:10,700 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:10,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:10,718 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:10,718 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:10,747 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:16:10,748 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:10,794 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:16:10,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:16:10,846 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:10,847 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:10,906 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:16:10,907 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:16:10,978 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:10,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:10,979 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:16:10,979 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:11,003 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:16:11,003 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:11,027 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:16:11,027 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:16:11,054 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:11,054 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:11,079 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:11,079 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:11,109 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:16:11,109 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:16:11,142 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:11,142 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:11,159 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:16:11,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:11,189 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:11,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:11,220 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:16:11,220 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:11,250 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:16:11,250 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:11,279 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:16:11,279 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:16:11,310 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:16:11,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:16:11,332 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:11,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:11,362 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:11,362 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:11,393 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:11,393 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:11,425 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:11,426 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:11,456 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:11,457 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:11,457 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:11,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:11,486 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:11,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097842139] [2021-03-24 20:16:11,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:11,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:16:11,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1425182103] [2021-03-24 20:16:11,487 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:16:11,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:11,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:16:11,487 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:16:11,489 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:16:11,489 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 265 places, 257 transitions, 3815 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:11,489 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:11,489 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:16:11,489 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:12,240 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-03-24 20:16:12,464 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:16:12,989 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 60 [2021-03-24 20:16:13,163 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 20:16:13,429 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 20:16:13,867 INFO L129 PetriNetUnfolder]: 244/1057 cut-off events. [2021-03-24 20:16:13,868 INFO L130 PetriNetUnfolder]: For 12667/12673 co-relation queries the response was YES. [2021-03-24 20:16:13,874 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6933 conditions, 1057 events. 244/1057 cut-off events. For 12667/12673 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 8526 event pairs, 128 based on Foata normal form. 5/1048 useless extension candidates. Maximal degree in co-relation 6850. Up to 724 conditions per place. [2021-03-24 20:16:13,876 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 192 selfloop transitions, 64 changer transitions 13/275 dead transitions. [2021-03-24 20:16:13,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 279 places, 275 transitions, 4543 flow [2021-03-24 20:16:13,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:13,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:13,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1603 transitions. [2021-03-24 20:16:13,878 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32034372501998404 [2021-03-24 20:16:13,879 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1603 transitions. [2021-03-24 20:16:13,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1603 transitions. [2021-03-24 20:16:13,879 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:13,879 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1603 transitions. [2021-03-24 20:16:13,880 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.05555555555556) internal successors, (1603), 18 states have internal predecessors, (1603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:13,882 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:13,882 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:13,882 INFO L185 Difference]: Start difference. First operand has 265 places, 257 transitions, 3815 flow. Second operand 18 states and 1603 transitions. [2021-03-24 20:16:13,882 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 279 places, 275 transitions, 4543 flow [2021-03-24 20:16:13,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 275 transitions, 4314 flow, removed 44 selfloop flow, removed 15 redundant places. [2021-03-24 20:16:13,934 INFO L241 Difference]: Finished difference. Result has 266 places, 255 transitions, 3720 flow [2021-03-24 20:16:13,935 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3615, PETRI_DIFFERENCE_MINUEND_PLACES=247, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=257, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=64, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=193, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3720, PETRI_PLACES=266, PETRI_TRANSITIONS=255} [2021-03-24 20:16:13,935 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 200 predicate places. [2021-03-24 20:16:13,935 INFO L480 AbstractCegarLoop]: Abstraction has has 266 places, 255 transitions, 3720 flow [2021-03-24 20:16:13,935 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:13,935 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:13,935 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:13,935 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable127 [2021-03-24 20:16:13,936 INFO L428 AbstractCegarLoop]: === Iteration 129 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:13,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:13,936 INFO L82 PathProgramCache]: Analyzing trace with hash 785749779, now seen corresponding path program 108 times [2021-03-24 20:16:13,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:13,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745791204] [2021-03-24 20:16:13,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:13,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:14,004 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:14,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:14,005 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:14,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:14,018 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:14,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:14,042 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:16:14,043 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:14,075 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:16:14,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:16:14,124 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:14,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:14,180 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:16:14,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:16:14,248 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:14,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:14,249 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:16:14,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:14,272 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:16:14,273 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:14,296 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:16:14,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:16:14,322 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:14,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:14,346 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:14,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:14,371 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:16:14,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:16:14,401 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:14,402 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:14,418 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:16:14,418 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:14,446 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:14,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:14,476 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:14,477 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:14,509 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:16:14,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:14,538 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:16:14,539 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:16:14,570 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:16:14,570 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:16:14,592 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:16:14,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:16:14,622 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:14,623 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:14,655 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:14,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:14,689 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:14,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:14,722 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:14,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:14,723 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:14,723 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:14,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:14,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745791204] [2021-03-24 20:16:14,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:14,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:16:14,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121205194] [2021-03-24 20:16:14,754 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:16:14,754 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:14,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:16:14,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:16:14,756 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:16:14,757 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 255 transitions, 3720 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:14,757 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:14,757 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:16:14,757 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:15,736 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 60 [2021-03-24 20:16:16,282 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 60 [2021-03-24 20:16:16,488 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 62 [2021-03-24 20:16:16,678 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-03-24 20:16:17,193 INFO L129 PetriNetUnfolder]: 240/1019 cut-off events. [2021-03-24 20:16:17,193 INFO L130 PetriNetUnfolder]: For 11710/11716 co-relation queries the response was YES. [2021-03-24 20:16:17,199 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6638 conditions, 1019 events. 240/1019 cut-off events. For 11710/11716 co-relation queries the response was YES. Maximal size of possible extension queue 98. Compared 8046 event pairs, 123 based on Foata normal form. 4/1009 useless extension candidates. Maximal degree in co-relation 6557. Up to 711 conditions per place. [2021-03-24 20:16:17,200 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 188 selfloop transitions, 61 changer transitions 15/270 dead transitions. [2021-03-24 20:16:17,201 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 281 places, 270 transitions, 4402 flow [2021-03-24 20:16:17,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-24 20:16:17,202 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2021-03-24 20:16:17,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 1688 transitions. [2021-03-24 20:16:17,203 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3195759182127982 [2021-03-24 20:16:17,203 INFO L72 ComplementDD]: Start complementDD. Operand 19 states and 1688 transitions. [2021-03-24 20:16:17,203 INFO L73 IsDeterministic]: Start isDeterministic. Operand 19 states and 1688 transitions. [2021-03-24 20:16:17,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:17,203 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 19 states and 1688 transitions. [2021-03-24 20:16:17,204 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 20 states, 19 states have (on average 88.84210526315789) internal successors, (1688), 19 states have internal predecessors, (1688), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:17,206 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:17,206 INFO L81 ComplementDD]: Finished complementDD. Result has 20 states, 20 states have (on average 278.0) internal successors, (5560), 20 states have internal predecessors, (5560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:17,206 INFO L185 Difference]: Start difference. First operand has 266 places, 255 transitions, 3720 flow. Second operand 19 states and 1688 transitions. [2021-03-24 20:16:17,206 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 281 places, 270 transitions, 4402 flow [2021-03-24 20:16:17,251 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 266 places, 270 transitions, 4260 flow, removed 4 selfloop flow, removed 15 redundant places. [2021-03-24 20:16:17,254 INFO L241 Difference]: Finished difference. Result has 267 places, 248 transitions, 3603 flow [2021-03-24 20:16:17,254 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3582, PETRI_DIFFERENCE_MINUEND_PLACES=248, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=255, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=19, PETRI_FLOW=3603, PETRI_PLACES=267, PETRI_TRANSITIONS=248} [2021-03-24 20:16:17,254 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 201 predicate places. [2021-03-24 20:16:17,254 INFO L480 AbstractCegarLoop]: Abstraction has has 267 places, 248 transitions, 3603 flow [2021-03-24 20:16:17,255 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:17,255 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:17,255 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:17,255 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable128 [2021-03-24 20:16:17,255 INFO L428 AbstractCegarLoop]: === Iteration 130 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:17,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:17,255 INFO L82 PathProgramCache]: Analyzing trace with hash 1365111755, now seen corresponding path program 109 times [2021-03-24 20:16:17,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:17,255 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2122008397] [2021-03-24 20:16:17,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:17,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:17,308 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:17,309 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:17,309 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:17,310 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:17,321 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:17,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:17,346 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:16:17,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:17,372 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:16:17,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:17,415 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:16:17,415 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:17,468 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:16:17,469 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:17,489 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:16:17,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:17,511 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:16:17,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:17,551 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:17,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:17,587 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:17,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:17,625 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 20:16:17,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:17,666 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:16:17,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:16:17,711 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:16:17,712 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:16:17,761 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:16:17,761 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:16:17,821 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:16:17,822 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:16:17,846 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:16:17,846 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:16:17,900 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:16:17,901 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:16:17,949 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:16:17,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:17,978 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:17,978 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:18,001 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:18,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:18,002 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:18,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:18,030 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:18,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:18,061 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:18,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:18,090 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:18,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:18,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:18,117 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2122008397] [2021-03-24 20:16:18,117 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:18,117 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:18,117 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603674205] [2021-03-24 20:16:18,118 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:18,118 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:18,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:18,118 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:18,119 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:18,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 267 places, 248 transitions, 3603 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:18,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:18,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:18,120 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:18,860 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 57 [2021-03-24 20:16:19,043 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-03-24 20:16:19,284 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-03-24 20:16:19,491 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 20:16:19,781 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:16:20,573 INFO L129 PetriNetUnfolder]: 237/989 cut-off events. [2021-03-24 20:16:20,573 INFO L130 PetriNetUnfolder]: For 11378/11384 co-relation queries the response was YES. [2021-03-24 20:16:20,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6421 conditions, 989 events. 237/989 cut-off events. For 11378/11384 co-relation queries the response was YES. Maximal size of possible extension queue 95. Compared 7733 event pairs, 112 based on Foata normal form. 4/979 useless extension candidates. Maximal degree in co-relation 6340. Up to 722 conditions per place. [2021-03-24 20:16:20,580 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 190 selfloop transitions, 44 changer transitions 29/273 dead transitions. [2021-03-24 20:16:20,580 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 280 places, 273 transitions, 4410 flow [2021-03-24 20:16:20,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:20,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:20,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2466 transitions. [2021-03-24 20:16:20,582 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49280575539568344 [2021-03-24 20:16:20,582 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2466 transitions. [2021-03-24 20:16:20,583 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2466 transitions. [2021-03-24 20:16:20,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:20,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2466 transitions. [2021-03-24 20:16:20,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.0) internal successors, (2466), 18 states have internal predecessors, (2466), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:20,586 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:20,586 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:20,586 INFO L185 Difference]: Start difference. First operand has 267 places, 248 transitions, 3603 flow. Second operand 18 states and 2466 transitions. [2021-03-24 20:16:20,586 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 280 places, 273 transitions, 4410 flow [2021-03-24 20:16:20,629 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 260 places, 273 transitions, 4263 flow, removed 9 selfloop flow, removed 20 redundant places. [2021-03-24 20:16:20,632 INFO L241 Difference]: Finished difference. Result has 266 places, 240 transitions, 3431 flow [2021-03-24 20:16:20,632 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3456, PETRI_DIFFERENCE_MINUEND_PLACES=243, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=248, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=204, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3431, PETRI_PLACES=266, PETRI_TRANSITIONS=240} [2021-03-24 20:16:20,632 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 200 predicate places. [2021-03-24 20:16:20,632 INFO L480 AbstractCegarLoop]: Abstraction has has 266 places, 240 transitions, 3431 flow [2021-03-24 20:16:20,633 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:20,633 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:20,633 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:20,633 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable129 [2021-03-24 20:16:20,633 INFO L428 AbstractCegarLoop]: === Iteration 131 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:20,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:20,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1494760519, now seen corresponding path program 110 times [2021-03-24 20:16:20,633 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:20,633 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988373283] [2021-03-24 20:16:20,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:20,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:20,698 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:20,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:20,699 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:20,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:20,711 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:20,711 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:20,735 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:16:20,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:20,768 INFO L142 QuantifierPusher]: treesize reduction 30, result has 63.0 percent of original size [2021-03-24 20:16:20,769 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:16:20,818 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:16:20,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:20,875 INFO L142 QuantifierPusher]: treesize reduction 30, result has 70.3 percent of original size [2021-03-24 20:16:20,875 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:16:20,943 INFO L142 QuantifierPusher]: treesize reduction 30, result has 69.4 percent of original size [2021-03-24 20:16:20,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:20,944 INFO L142 QuantifierPusher]: treesize reduction 12, result has 78.6 percent of original size [2021-03-24 20:16:20,944 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:20,980 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.9 percent of original size [2021-03-24 20:16:20,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:16:21,018 INFO L142 QuantifierPusher]: treesize reduction 16, result has 76.5 percent of original size [2021-03-24 20:16:21,018 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:16:21,067 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:16:21,068 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:21,112 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:16:21,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:21,159 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:16:21,159 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:21,208 INFO L142 QuantifierPusher]: treesize reduction 39, result has 62.1 percent of original size [2021-03-24 20:16:21,208 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 64 [2021-03-24 20:16:21,273 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:16:21,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:16:21,352 INFO L142 QuantifierPusher]: treesize reduction 56, result has 57.6 percent of original size [2021-03-24 20:16:21,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:16:21,378 INFO L142 QuantifierPusher]: treesize reduction 61, result has 53.4 percent of original size [2021-03-24 20:16:21,379 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 70 [2021-03-24 20:16:21,449 INFO L142 QuantifierPusher]: treesize reduction 56, result has 59.1 percent of original size [2021-03-24 20:16:21,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 81 [2021-03-24 20:16:21,530 INFO L142 QuantifierPusher]: treesize reduction 31, result has 58.7 percent of original size [2021-03-24 20:16:21,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:21,583 INFO L142 QuantifierPusher]: treesize reduction 31, result has 55.7 percent of original size [2021-03-24 20:16:21,584 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:16:21,611 INFO L142 QuantifierPusher]: treesize reduction 41, result has 44.6 percent of original size [2021-03-24 20:16:21,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:16:21,659 INFO L142 QuantifierPusher]: treesize reduction 41, result has 43.8 percent of original size [2021-03-24 20:16:21,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:21,709 INFO L142 QuantifierPusher]: treesize reduction 29, result has 56.7 percent of original size [2021-03-24 20:16:21,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:21,762 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:21,762 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:21,793 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:21,793 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:21,794 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:21,794 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:21,824 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1988373283] [2021-03-24 20:16:21,824 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:21,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:16:21,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [887264732] [2021-03-24 20:16:21,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:16:21,824 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:21,824 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:16:21,824 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:16:21,826 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:16:21,826 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 266 places, 240 transitions, 3431 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:21,826 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:21,826 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:16:21,826 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:22,475 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 54 [2021-03-24 20:16:22,620 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-03-24 20:16:22,798 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-03-24 20:16:23,051 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 68 [2021-03-24 20:16:23,312 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-03-24 20:16:24,491 INFO L129 PetriNetUnfolder]: 220/928 cut-off events. [2021-03-24 20:16:24,491 INFO L130 PetriNetUnfolder]: For 10909/10911 co-relation queries the response was YES. [2021-03-24 20:16:24,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6100 conditions, 928 events. 220/928 cut-off events. For 10909/10911 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 7183 event pairs, 100 based on Foata normal form. 3/917 useless extension candidates. Maximal degree in co-relation 6017. Up to 626 conditions per place. [2021-03-24 20:16:24,499 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 166 selfloop transitions, 68 changer transitions 18/258 dead transitions. [2021-03-24 20:16:24,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 276 places, 258 transitions, 4090 flow [2021-03-24 20:16:24,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:16:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:16:24,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1781 transitions. [2021-03-24 20:16:24,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.32032374100719424 [2021-03-24 20:16:24,501 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1781 transitions. [2021-03-24 20:16:24,501 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1781 transitions. [2021-03-24 20:16:24,501 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:24,501 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1781 transitions. [2021-03-24 20:16:24,502 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 89.05) internal successors, (1781), 20 states have internal predecessors, (1781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:24,504 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:24,504 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:24,505 INFO L185 Difference]: Start difference. First operand has 266 places, 240 transitions, 3431 flow. Second operand 20 states and 1781 transitions. [2021-03-24 20:16:24,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 276 places, 258 transitions, 4090 flow [2021-03-24 20:16:24,545 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 258 places, 258 transitions, 3950 flow, removed 19 selfloop flow, removed 18 redundant places. [2021-03-24 20:16:24,548 INFO L241 Difference]: Finished difference. Result has 259 places, 232 transitions, 3289 flow [2021-03-24 20:16:24,548 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3293, PETRI_DIFFERENCE_MINUEND_PLACES=239, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=240, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=68, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=172, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=3289, PETRI_PLACES=259, PETRI_TRANSITIONS=232} [2021-03-24 20:16:24,548 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 193 predicate places. [2021-03-24 20:16:24,548 INFO L480 AbstractCegarLoop]: Abstraction has has 259 places, 232 transitions, 3289 flow [2021-03-24 20:16:24,549 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:24,549 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:24,549 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:24,549 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable130 [2021-03-24 20:16:24,549 INFO L428 AbstractCegarLoop]: === Iteration 132 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:24,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:24,549 INFO L82 PathProgramCache]: Analyzing trace with hash -464096839, now seen corresponding path program 111 times [2021-03-24 20:16:24,549 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:24,549 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1208515916] [2021-03-24 20:16:24,549 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:24,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:24,618 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:24,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:24,619 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:24,619 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:24,631 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:24,631 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:24,655 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:16:24,655 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:16:24,696 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:16:24,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:16:24,750 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:16:24,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:16:24,815 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:16:24,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:16:24,893 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:16:24,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:16:24,895 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:16:24,895 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:16:24,922 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:16:24,923 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:24,950 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:16:24,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:16:25,002 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:16:25,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:16:25,048 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:16:25,049 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:16:25,095 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:16:25,096 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:16:25,145 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.9 percent of original size [2021-03-24 20:16:25,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:25,205 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:16:25,205 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:16:25,264 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:16:25,265 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:16:25,291 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:16:25,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:16:25,349 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:16:25,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:16:25,403 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:16:25,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:16:25,433 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:16:25,433 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:16:25,480 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:16:25,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:25,508 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:16:25,508 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:25,550 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:16:25,550 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:25,596 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:16:25,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:16:25,626 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:16:25,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:16:25,626 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:16:25,627 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:16:25,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:25,654 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1208515916] [2021-03-24 20:16:25,654 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:25,654 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:16:25,654 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1485435805] [2021-03-24 20:16:25,654 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:16:25,654 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:25,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:16:25,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:16:25,656 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:16:25,656 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 259 places, 232 transitions, 3289 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:25,656 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:25,656 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:16:25,656 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:26,406 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 20:16:26,583 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-03-24 20:16:26,819 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:16:27,245 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:16:27,551 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:16:27,736 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:16:28,142 INFO L129 PetriNetUnfolder]: 215/904 cut-off events. [2021-03-24 20:16:28,142 INFO L130 PetriNetUnfolder]: For 10414/10416 co-relation queries the response was YES. [2021-03-24 20:16:28,148 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5933 conditions, 904 events. 215/904 cut-off events. For 10414/10416 co-relation queries the response was YES. Maximal size of possible extension queue 87. Compared 6910 event pairs, 110 based on Foata normal form. 3/893 useless extension candidates. Maximal degree in co-relation 5856. Up to 694 conditions per place. [2021-03-24 20:16:28,149 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 182 selfloop transitions, 42 changer transitions 18/248 dead transitions. [2021-03-24 20:16:28,149 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 248 transitions, 3957 flow [2021-03-24 20:16:28,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:28,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:28,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1604 transitions. [2021-03-24 20:16:28,152 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3205435651478817 [2021-03-24 20:16:28,152 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1604 transitions. [2021-03-24 20:16:28,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1604 transitions. [2021-03-24 20:16:28,152 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:28,152 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1604 transitions. [2021-03-24 20:16:28,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 89.11111111111111) internal successors, (1604), 18 states have internal predecessors, (1604), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:28,155 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:28,155 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:28,155 INFO L185 Difference]: Start difference. First operand has 259 places, 232 transitions, 3289 flow. Second operand 18 states and 1604 transitions. [2021-03-24 20:16:28,155 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 248 transitions, 3957 flow [2021-03-24 20:16:28,190 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 248 transitions, 3784 flow, removed 5 selfloop flow, removed 20 redundant places. [2021-03-24 20:16:28,193 INFO L241 Difference]: Finished difference. Result has 255 places, 226 transitions, 3129 flow [2021-03-24 20:16:28,194 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3120, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=232, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3129, PETRI_PLACES=255, PETRI_TRANSITIONS=226} [2021-03-24 20:16:28,194 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 189 predicate places. [2021-03-24 20:16:28,194 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 226 transitions, 3129 flow [2021-03-24 20:16:28,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:28,194 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:28,194 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:28,194 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable131 [2021-03-24 20:16:28,194 INFO L428 AbstractCegarLoop]: === Iteration 133 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:28,194 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:28,194 INFO L82 PathProgramCache]: Analyzing trace with hash 46580921, now seen corresponding path program 112 times [2021-03-24 20:16:28,194 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:28,195 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024321033] [2021-03-24 20:16:28,195 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:28,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:28,260 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:28,260 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:28,261 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:28,261 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:28,274 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:28,275 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:28,302 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:16:28,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:28,341 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:16:28,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:28,392 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:16:28,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:28,445 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:16:28,446 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:28,466 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:16:28,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:28,487 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:16:28,488 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:28,526 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:28,527 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:28,563 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:28,563 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:28,599 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:28,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:28,637 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:16:28,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:16:28,682 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:16:28,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:28,699 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:16:28,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:16:28,740 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:16:28,740 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:28,770 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:16:28,770 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:16:28,803 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:16:28,803 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:16:28,832 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:16:28,833 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:16:28,833 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:28,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:28,865 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:28,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:28,889 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:28,890 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:28,920 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:28,920 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:28,953 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:28,953 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:28,984 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:28,984 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:29,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024321033] [2021-03-24 20:16:29,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:29,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:29,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248654679] [2021-03-24 20:16:29,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:29,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:29,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:29,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:29,015 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:29,016 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 226 transitions, 3129 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:29,016 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:29,016 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:29,016 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:29,801 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:16:29,954 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:16:30,176 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 20:16:30,383 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-03-24 20:16:31,040 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:16:31,435 INFO L129 PetriNetUnfolder]: 237/955 cut-off events. [2021-03-24 20:16:31,435 INFO L130 PetriNetUnfolder]: For 10392/10394 co-relation queries the response was YES. [2021-03-24 20:16:31,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6087 conditions, 955 events. 237/955 cut-off events. For 10392/10394 co-relation queries the response was YES. Maximal size of possible extension queue 92. Compared 7368 event pairs, 117 based on Foata normal form. 3/944 useless extension candidates. Maximal degree in co-relation 6010. Up to 668 conditions per place. [2021-03-24 20:16:31,442 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 179 selfloop transitions, 49 changer transitions 23/261 dead transitions. [2021-03-24 20:16:31,442 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 264 places, 261 transitions, 4043 flow [2021-03-24 20:16:31,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:31,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:31,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2468 transitions. [2021-03-24 20:16:31,445 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49320543565147884 [2021-03-24 20:16:31,445 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2468 transitions. [2021-03-24 20:16:31,445 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2468 transitions. [2021-03-24 20:16:31,445 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:31,445 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2468 transitions. [2021-03-24 20:16:31,446 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.11111111111111) internal successors, (2468), 18 states have internal predecessors, (2468), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:31,448 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:31,448 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:31,448 INFO L185 Difference]: Start difference. First operand has 255 places, 226 transitions, 3129 flow. Second operand 18 states and 2468 transitions. [2021-03-24 20:16:31,448 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 264 places, 261 transitions, 4043 flow [2021-03-24 20:16:31,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 261 transitions, 3944 flow, removed 7 selfloop flow, removed 14 redundant places. [2021-03-24 20:16:31,487 INFO L241 Difference]: Finished difference. Result has 255 places, 228 transitions, 3206 flow [2021-03-24 20:16:31,487 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3036, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=226, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3206, PETRI_PLACES=255, PETRI_TRANSITIONS=228} [2021-03-24 20:16:31,487 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 189 predicate places. [2021-03-24 20:16:31,487 INFO L480 AbstractCegarLoop]: Abstraction has has 255 places, 228 transitions, 3206 flow [2021-03-24 20:16:31,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:31,487 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:31,487 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:31,487 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable132 [2021-03-24 20:16:31,487 INFO L428 AbstractCegarLoop]: === Iteration 134 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:31,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:31,488 INFO L82 PathProgramCache]: Analyzing trace with hash 1229164731, now seen corresponding path program 113 times [2021-03-24 20:16:31,488 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:31,488 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1596410613] [2021-03-24 20:16:31,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:31,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:31,539 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:31,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:31,540 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:31,540 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:31,552 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:31,552 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:31,577 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:16:31,578 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:31,604 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:16:31,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:31,647 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:16:31,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:31,701 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:16:31,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:31,722 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:16:31,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:31,743 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:16:31,744 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:31,782 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:31,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:31,818 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:31,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:31,854 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:31,855 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:31,893 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:16:31,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:16:31,937 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:16:31,937 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:31,968 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:16:31,969 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:16:32,024 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:16:32,025 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:16:32,048 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:16:32,049 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:16:32,103 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:16:32,104 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:16:32,156 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:16:32,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:32,189 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:32,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:32,215 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:32,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:32,216 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:32,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:32,247 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:32,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:32,283 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:32,284 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:32,316 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:32,317 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:32,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:32,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1596410613] [2021-03-24 20:16:32,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:32,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:32,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1471519642] [2021-03-24 20:16:32,348 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:32,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:32,348 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:32,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:32,350 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:32,351 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 255 places, 228 transitions, 3206 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:32,351 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:32,351 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:32,351 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:32,984 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:16:33,122 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:16:33,284 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:16:33,498 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-03-24 20:16:33,792 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-03-24 20:16:34,062 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2021-03-24 20:16:34,815 INFO L129 PetriNetUnfolder]: 233/950 cut-off events. [2021-03-24 20:16:34,815 INFO L130 PetriNetUnfolder]: For 10627/10629 co-relation queries the response was YES. [2021-03-24 20:16:34,820 INFO L84 FinitePrefix]: Finished finitePrefix Result has 6080 conditions, 950 events. 233/950 cut-off events. For 10627/10629 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 7350 event pairs, 122 based on Foata normal form. 3/940 useless extension candidates. Maximal degree in co-relation 6002. Up to 656 conditions per place. [2021-03-24 20:16:34,822 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 165 selfloop transitions, 43 changer transitions 31/249 dead transitions. [2021-03-24 20:16:34,822 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 249 transitions, 3919 flow [2021-03-24 20:16:34,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:34,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 20:16:34,824 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 20:16:34,824 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 20:16:34,824 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 20:16:34,824 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:34,824 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 20:16:34,826 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.83333333333334) internal successors, (2463), 18 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:34,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:34,828 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:34,828 INFO L185 Difference]: Start difference. First operand has 255 places, 228 transitions, 3206 flow. Second operand 18 states and 2463 transitions. [2021-03-24 20:16:34,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 249 transitions, 3919 flow [2021-03-24 20:16:34,864 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 249 transitions, 3812 flow, removed 11 selfloop flow, removed 14 redundant places. [2021-03-24 20:16:34,867 INFO L241 Difference]: Finished difference. Result has 258 places, 216 transitions, 3019 flow [2021-03-24 20:16:34,867 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=3103, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=228, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=42, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=185, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3019, PETRI_PLACES=258, PETRI_TRANSITIONS=216} [2021-03-24 20:16:34,867 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 192 predicate places. [2021-03-24 20:16:34,867 INFO L480 AbstractCegarLoop]: Abstraction has has 258 places, 216 transitions, 3019 flow [2021-03-24 20:16:34,867 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:34,867 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:34,868 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:34,868 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable133 [2021-03-24 20:16:34,868 INFO L428 AbstractCegarLoop]: === Iteration 135 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:34,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:34,868 INFO L82 PathProgramCache]: Analyzing trace with hash 1699352037, now seen corresponding path program 114 times [2021-03-24 20:16:34,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:34,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809907917] [2021-03-24 20:16:34,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:34,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:34,917 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:34,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:34,918 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:34,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:34,930 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:34,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:34,956 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:16:34,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:34,984 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:16:34,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:35,032 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:16:35,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:35,090 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:16:35,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:35,113 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:16:35,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:35,136 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:16:35,137 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:35,180 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:35,180 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:35,225 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:35,226 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:35,274 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:35,274 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:35,322 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:16:35,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:16:35,374 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:16:35,375 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:35,412 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:16:35,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:16:35,434 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:16:35,435 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:35,466 INFO L142 QuantifierPusher]: treesize reduction 31, result has 46.6 percent of original size [2021-03-24 20:16:35,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:35,509 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:16:35,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:16:35,555 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:16:35,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:35,587 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:35,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:35,612 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:35,613 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:35,613 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:35,614 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:35,645 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:35,645 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:35,678 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:35,679 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:35,709 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:35,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:35,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:35,738 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809907917] [2021-03-24 20:16:35,738 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:35,738 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:35,738 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014289061] [2021-03-24 20:16:35,738 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:35,738 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:35,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:35,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:35,740 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:35,741 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 216 transitions, 3019 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:35,741 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:35,741 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:35,741 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:36,490 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:16:36,667 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:16:36,874 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-03-24 20:16:37,187 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-03-24 20:16:37,394 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2021-03-24 20:16:38,172 INFO L129 PetriNetUnfolder]: 207/874 cut-off events. [2021-03-24 20:16:38,173 INFO L130 PetriNetUnfolder]: For 9754/9756 co-relation queries the response was YES. [2021-03-24 20:16:38,176 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5573 conditions, 874 events. 207/874 cut-off events. For 9754/9756 co-relation queries the response was YES. Maximal size of possible extension queue 86. Compared 6677 event pairs, 109 based on Foata normal form. 3/866 useless extension candidates. Maximal degree in co-relation 5495. Up to 600 conditions per place. [2021-03-24 20:16:38,178 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 158 selfloop transitions, 39 changer transitions 28/235 dead transitions. [2021-03-24 20:16:38,178 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 270 places, 235 transitions, 3696 flow [2021-03-24 20:16:38,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:38,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:38,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2462 transitions. [2021-03-24 20:16:38,180 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4920063948840927 [2021-03-24 20:16:38,180 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2462 transitions. [2021-03-24 20:16:38,180 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2462 transitions. [2021-03-24 20:16:38,180 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:38,180 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2462 transitions. [2021-03-24 20:16:38,182 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.77777777777777) internal successors, (2462), 18 states have internal predecessors, (2462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:38,183 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:38,184 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:38,184 INFO L185 Difference]: Start difference. First operand has 258 places, 216 transitions, 3019 flow. Second operand 18 states and 2462 transitions. [2021-03-24 20:16:38,184 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 270 places, 235 transitions, 3696 flow [2021-03-24 20:16:38,217 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 257 places, 235 transitions, 3599 flow, removed 8 selfloop flow, removed 13 redundant places. [2021-03-24 20:16:38,220 INFO L241 Difference]: Finished difference. Result has 260 places, 205 transitions, 2838 flow [2021-03-24 20:16:38,220 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2926, PETRI_DIFFERENCE_MINUEND_PLACES=240, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=216, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=39, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=177, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2838, PETRI_PLACES=260, PETRI_TRANSITIONS=205} [2021-03-24 20:16:38,220 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 194 predicate places. [2021-03-24 20:16:38,220 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 205 transitions, 2838 flow [2021-03-24 20:16:38,221 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:38,221 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:38,221 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:38,221 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable134 [2021-03-24 20:16:38,221 INFO L428 AbstractCegarLoop]: === Iteration 136 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:38,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:38,221 INFO L82 PathProgramCache]: Analyzing trace with hash 1293351573, now seen corresponding path program 115 times [2021-03-24 20:16:38,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:38,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2137419416] [2021-03-24 20:16:38,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:38,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:38,277 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:38,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:38,278 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:38,278 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:38,290 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:38,291 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:38,315 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:16:38,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:38,342 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:16:38,342 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:38,386 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:16:38,387 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:38,442 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:16:38,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:38,463 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:16:38,463 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:38,485 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:16:38,485 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:38,524 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:38,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:38,560 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:38,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:38,598 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:38,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:38,637 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:16:38,638 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:16:38,687 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:16:38,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:38,705 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:16:38,705 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:16:38,745 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:16:38,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:38,789 INFO L142 QuantifierPusher]: treesize reduction 38, result has 54.8 percent of original size [2021-03-24 20:16:38,790 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:16:38,856 INFO L142 QuantifierPusher]: treesize reduction 30, result has 44.4 percent of original size [2021-03-24 20:16:38,857 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:16:38,886 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:16:38,886 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:38,917 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:38,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:38,941 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:38,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:38,942 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:38,943 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:38,973 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:38,973 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:39,006 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:39,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:39,037 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:39,037 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:39,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:39,066 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2137419416] [2021-03-24 20:16:39,066 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:39,066 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:39,066 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1300658988] [2021-03-24 20:16:39,066 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:39,066 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:39,066 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:39,067 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:39,068 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:39,069 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 205 transitions, 2838 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:39,069 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:39,069 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:39,069 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:39,853 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:16:40,010 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:16:40,231 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 20:16:41,079 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2021-03-24 20:16:41,461 INFO L129 PetriNetUnfolder]: 215/900 cut-off events. [2021-03-24 20:16:41,461 INFO L130 PetriNetUnfolder]: For 10259/10261 co-relation queries the response was YES. [2021-03-24 20:16:41,466 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5762 conditions, 900 events. 215/900 cut-off events. For 10259/10261 co-relation queries the response was YES. Maximal size of possible extension queue 89. Compared 6895 event pairs, 72 based on Foata normal form. 4/895 useless extension candidates. Maximal degree in co-relation 5684. Up to 533 conditions per place. [2021-03-24 20:16:41,468 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 141 selfloop transitions, 83 changer transitions 19/253 dead transitions. [2021-03-24 20:16:41,468 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 269 places, 253 transitions, 4000 flow [2021-03-24 20:16:41,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:41,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:41,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 20:16:41,470 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 20:16:41,470 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 20:16:41,470 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 20:16:41,471 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:41,471 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 20:16:41,472 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.38888888888889) internal successors, (2473), 18 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:41,474 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:41,474 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:41,474 INFO L185 Difference]: Start difference. First operand has 260 places, 205 transitions, 2838 flow. Second operand 18 states and 2473 transitions. [2021-03-24 20:16:41,474 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 269 places, 253 transitions, 4000 flow [2021-03-24 20:16:41,509 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 248 places, 253 transitions, 3806 flow, removed 33 selfloop flow, removed 21 redundant places. [2021-03-24 20:16:41,512 INFO L241 Difference]: Finished difference. Result has 253 places, 218 transitions, 3153 flow [2021-03-24 20:16:41,512 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2694, PETRI_DIFFERENCE_MINUEND_PLACES=231, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=71, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3153, PETRI_PLACES=253, PETRI_TRANSITIONS=218} [2021-03-24 20:16:41,512 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 187 predicate places. [2021-03-24 20:16:41,512 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 218 transitions, 3153 flow [2021-03-24 20:16:41,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:41,513 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:41,513 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:41,513 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable135 [2021-03-24 20:16:41,513 INFO L428 AbstractCegarLoop]: === Iteration 137 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:41,513 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:41,513 INFO L82 PathProgramCache]: Analyzing trace with hash 726958835, now seen corresponding path program 116 times [2021-03-24 20:16:41,513 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:41,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605511220] [2021-03-24 20:16:41,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:41,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:41,586 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:41,587 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:41,587 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:41,588 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:41,599 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:41,600 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:41,624 INFO L142 QuantifierPusher]: treesize reduction 12, result has 72.7 percent of original size [2021-03-24 20:16:41,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:41,652 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.3 percent of original size [2021-03-24 20:16:41,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:16:41,703 INFO L142 QuantifierPusher]: treesize reduction 17, result has 81.7 percent of original size [2021-03-24 20:16:41,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:16:41,767 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.8 percent of original size [2021-03-24 20:16:41,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:16:41,794 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-24 20:16:41,795 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:41,816 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 20:16:41,816 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:41,838 INFO L142 QuantifierPusher]: treesize reduction 23, result has 62.3 percent of original size [2021-03-24 20:16:41,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:41,863 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 20:16:41,864 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:16:41,888 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 20:16:41,888 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:16:41,913 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 20:16:41,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:16:41,940 INFO L142 QuantifierPusher]: treesize reduction 23, result has 61.7 percent of original size [2021-03-24 20:16:41,941 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:41,973 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-24 20:16:41,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:41,993 INFO L142 QuantifierPusher]: treesize reduction 23, result has 53.1 percent of original size [2021-03-24 20:16:41,993 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:42,023 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:16:42,023 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:16:42,059 INFO L142 QuantifierPusher]: treesize reduction 47, result has 53.0 percent of original size [2021-03-24 20:16:42,059 INFO L147 QuantifierPusher]: treesize reduction 6, result has 88.7 percent of original size 47 [2021-03-24 20:16:42,122 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.3 percent of original size [2021-03-24 20:16:42,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:16:42,160 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 20:16:42,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:16:42,187 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.0 percent of original size [2021-03-24 20:16:42,187 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 20:16:42,236 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-24 20:16:42,237 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-24 20:16:42,287 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 20:16:42,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:16:42,324 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:16:42,324 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:16:42,358 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:16:42,359 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:16:42,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:42,389 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605511220] [2021-03-24 20:16:42,389 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:42,389 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:16:42,389 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [314269351] [2021-03-24 20:16:42,390 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:16:42,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:42,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:16:42,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:16:42,391 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:16:42,392 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 218 transitions, 3153 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:42,392 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:42,392 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:16:42,392 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:43,307 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 57 [2021-03-24 20:16:43,471 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 62 [2021-03-24 20:16:43,706 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 64 [2021-03-24 20:16:44,092 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 55 [2021-03-24 20:16:44,402 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 58 [2021-03-24 20:16:44,620 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 61 [2021-03-24 20:16:45,492 INFO L129 PetriNetUnfolder]: 210/899 cut-off events. [2021-03-24 20:16:45,492 INFO L130 PetriNetUnfolder]: For 10384/10392 co-relation queries the response was YES. [2021-03-24 20:16:45,497 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5863 conditions, 899 events. 210/899 cut-off events. For 10384/10392 co-relation queries the response was YES. Maximal size of possible extension queue 94. Compared 6955 event pairs, 75 based on Foata normal form. 9/899 useless extension candidates. Maximal degree in co-relation 5787. Up to 537 conditions per place. [2021-03-24 20:16:45,499 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 143 selfloop transitions, 86 changer transitions 24/259 dead transitions. [2021-03-24 20:16:45,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 259 transitions, 4156 flow [2021-03-24 20:16:45,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-24 20:16:45,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-24 20:16:45,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1962 transitions. [2021-03-24 20:16:45,501 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3207979071288424 [2021-03-24 20:16:45,502 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1962 transitions. [2021-03-24 20:16:45,502 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1962 transitions. [2021-03-24 20:16:45,502 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:45,502 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1962 transitions. [2021-03-24 20:16:45,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 89.18181818181819) internal successors, (1962), 22 states have internal predecessors, (1962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:45,505 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:45,505 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:45,505 INFO L185 Difference]: Start difference. First operand has 253 places, 218 transitions, 3153 flow. Second operand 22 states and 1962 transitions. [2021-03-24 20:16:45,505 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 259 transitions, 4156 flow [2021-03-24 20:16:45,544 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 256 places, 259 transitions, 3913 flow, removed 48 selfloop flow, removed 15 redundant places. [2021-03-24 20:16:45,547 INFO L241 Difference]: Finished difference. Result has 260 places, 219 transitions, 3169 flow [2021-03-24 20:16:45,547 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2940, PETRI_DIFFERENCE_MINUEND_PLACES=235, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=218, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=134, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=3169, PETRI_PLACES=260, PETRI_TRANSITIONS=219} [2021-03-24 20:16:45,547 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 194 predicate places. [2021-03-24 20:16:45,548 INFO L480 AbstractCegarLoop]: Abstraction has has 260 places, 219 transitions, 3169 flow [2021-03-24 20:16:45,548 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:45,548 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:45,548 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:45,548 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable136 [2021-03-24 20:16:45,548 INFO L428 AbstractCegarLoop]: === Iteration 138 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:45,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:45,548 INFO L82 PathProgramCache]: Analyzing trace with hash 1619870375, now seen corresponding path program 117 times [2021-03-24 20:16:45,548 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:45,548 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [109567665] [2021-03-24 20:16:45,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:45,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:45,608 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:45,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:45,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:45,609 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:45,621 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:45,621 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:45,646 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:16:45,646 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:45,679 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:16:45,680 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:16:45,729 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:45,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:16:45,786 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:16:45,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:45,807 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:16:45,807 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:45,828 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:16:45,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:16:45,853 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:45,853 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:45,876 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:45,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:45,900 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:16:45,901 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:45,926 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:16:45,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:16:45,956 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:45,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:45,973 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:16:45,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:46,001 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:16:46,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:46,032 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:16:46,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:46,061 INFO L142 QuantifierPusher]: treesize reduction 12, result has 67.6 percent of original size [2021-03-24 20:16:46,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:16:46,090 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:46,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:46,122 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:46,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:46,146 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:46,146 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:46,178 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:46,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:46,211 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:46,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:46,212 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:46,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:46,243 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:46,243 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:46,272 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:46,272 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [109567665] [2021-03-24 20:16:46,272 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:46,272 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:46,272 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2016740397] [2021-03-24 20:16:46,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:46,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:46,273 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:46,273 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:46,275 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:46,276 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 260 places, 219 transitions, 3169 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:46,276 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:46,276 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:46,276 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:47,035 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:16:47,211 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 62 [2021-03-24 20:16:47,463 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:16:47,940 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 59 [2021-03-24 20:16:48,250 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2021-03-24 20:16:48,621 INFO L129 PetriNetUnfolder]: 201/866 cut-off events. [2021-03-24 20:16:48,621 INFO L130 PetriNetUnfolder]: For 10478/10482 co-relation queries the response was YES. [2021-03-24 20:16:48,626 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5659 conditions, 866 events. 201/866 cut-off events. For 10478/10482 co-relation queries the response was YES. Maximal size of possible extension queue 90. Compared 6601 event pairs, 76 based on Foata normal form. 5/863 useless extension candidates. Maximal degree in co-relation 5582. Up to 502 conditions per place. [2021-03-24 20:16:48,628 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 144 selfloop transitions, 75 changer transitions 27/256 dead transitions. [2021-03-24 20:16:48,628 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 272 places, 256 transitions, 4088 flow [2021-03-24 20:16:48,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:48,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:48,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2473 transitions. [2021-03-24 20:16:48,630 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4942046362909672 [2021-03-24 20:16:48,630 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2473 transitions. [2021-03-24 20:16:48,630 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2473 transitions. [2021-03-24 20:16:48,631 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:48,631 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2473 transitions. [2021-03-24 20:16:48,632 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 137.38888888888889) internal successors, (2473), 18 states have internal predecessors, (2473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:48,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:48,634 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:48,634 INFO L185 Difference]: Start difference. First operand has 260 places, 219 transitions, 3169 flow. Second operand 18 states and 2473 transitions. [2021-03-24 20:16:48,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 272 places, 256 transitions, 4088 flow [2021-03-24 20:16:48,671 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 254 places, 256 transitions, 3756 flow, removed 55 selfloop flow, removed 18 redundant places. [2021-03-24 20:16:48,673 INFO L241 Difference]: Finished difference. Result has 258 places, 215 transitions, 3063 flow [2021-03-24 20:16:48,674 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2890, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=219, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=73, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=3063, PETRI_PLACES=258, PETRI_TRANSITIONS=215} [2021-03-24 20:16:48,674 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 192 predicate places. [2021-03-24 20:16:48,674 INFO L480 AbstractCegarLoop]: Abstraction has has 258 places, 215 transitions, 3063 flow [2021-03-24 20:16:48,674 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:48,674 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:48,674 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:48,674 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable137 [2021-03-24 20:16:48,674 INFO L428 AbstractCegarLoop]: === Iteration 139 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:48,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:48,675 INFO L82 PathProgramCache]: Analyzing trace with hash -373470683, now seen corresponding path program 118 times [2021-03-24 20:16:48,675 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:48,675 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014179209] [2021-03-24 20:16:48,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:48,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:48,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:48,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:48,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:48,726 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:48,733 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:48,734 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:48,750 INFO L142 QuantifierPusher]: treesize reduction 20, result has 60.0 percent of original size [2021-03-24 20:16:48,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:16:48,781 INFO L142 QuantifierPusher]: treesize reduction 32, result has 57.3 percent of original size [2021-03-24 20:16:48,782 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:48,835 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:16:48,836 INFO L147 QuantifierPusher]: treesize reduction 3, result has 95.6 percent of original size 65 [2021-03-24 20:16:48,897 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:16:48,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:48,921 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:16:48,921 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:48,945 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:16:48,946 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:16:48,989 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:16:48,990 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:16:49,027 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:16:49,027 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:16:49,064 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:16:49,065 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:16:49,104 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:16:49,104 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:16:49,152 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:16:49,153 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:16:49,173 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:16:49,173 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:16:49,215 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:16:49,215 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:16:49,260 INFO L142 QuantifierPusher]: treesize reduction 50, result has 35.9 percent of original size [2021-03-24 20:16:49,260 INFO L147 QuantifierPusher]: treesize reduction 5, result has 82.1 percent of original size 23 [2021-03-24 20:16:49,303 INFO L142 QuantifierPusher]: treesize reduction 48, result has 44.8 percent of original size [2021-03-24 20:16:49,304 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:16:49,352 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:16:49,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:49,389 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:16:49,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:49,413 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:16:49,414 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:49,464 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:16:49,464 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:49,497 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:16:49,498 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:49,528 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:49,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:49,557 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:49,557 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014179209] [2021-03-24 20:16:49,557 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:49,557 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:49,557 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220878296] [2021-03-24 20:16:49,558 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:49,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:49,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:49,558 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:49,560 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:49,561 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 215 transitions, 3063 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:49,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:49,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:49,562 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:50,224 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 55 [2021-03-24 20:16:50,383 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 59 [2021-03-24 20:16:50,549 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 64 [2021-03-24 20:16:50,775 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-24 20:16:50,994 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-03-24 20:16:51,254 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-03-24 20:16:52,034 INFO L129 PetriNetUnfolder]: 182/796 cut-off events. [2021-03-24 20:16:52,034 INFO L130 PetriNetUnfolder]: For 8955/8961 co-relation queries the response was YES. [2021-03-24 20:16:52,039 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5210 conditions, 796 events. 182/796 cut-off events. For 8955/8961 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 5942 event pairs, 87 based on Foata normal form. 3/791 useless extension candidates. Maximal degree in co-relation 5132. Up to 561 conditions per place. [2021-03-24 20:16:52,040 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 159 selfloop transitions, 40 changer transitions 20/229 dead transitions. [2021-03-24 20:16:52,040 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 229 transitions, 3643 flow [2021-03-24 20:16:52,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:52,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:52,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2021-03-24 20:16:52,043 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49140687450039966 [2021-03-24 20:16:52,043 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2021-03-24 20:16:52,043 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2021-03-24 20:16:52,043 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:52,043 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2021-03-24 20:16:52,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:52,046 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:52,046 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:52,046 INFO L185 Difference]: Start difference. First operand has 258 places, 215 transitions, 3063 flow. Second operand 18 states and 2459 transitions. [2021-03-24 20:16:52,046 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 229 transitions, 3643 flow [2021-03-24 20:16:52,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 229 transitions, 3467 flow, removed 16 selfloop flow, removed 16 redundant places. [2021-03-24 20:16:52,081 INFO L241 Difference]: Finished difference. Result has 257 places, 207 transitions, 2849 flow [2021-03-24 20:16:52,081 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2890, PETRI_DIFFERENCE_MINUEND_PLACES=238, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=215, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=40, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=175, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2849, PETRI_PLACES=257, PETRI_TRANSITIONS=207} [2021-03-24 20:16:52,081 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 191 predicate places. [2021-03-24 20:16:52,081 INFO L480 AbstractCegarLoop]: Abstraction has has 257 places, 207 transitions, 2849 flow [2021-03-24 20:16:52,081 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:52,082 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:52,082 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:52,082 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable138 [2021-03-24 20:16:52,082 INFO L428 AbstractCegarLoop]: === Iteration 140 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:52,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:52,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1315540111, now seen corresponding path program 119 times [2021-03-24 20:16:52,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:52,082 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882272374] [2021-03-24 20:16:52,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:52,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:52,146 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:52,147 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:52,147 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:52,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:52,161 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:52,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:52,199 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:16:52,200 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:52,235 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:16:52,236 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:52,291 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:16:52,292 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:52,346 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:16:52,346 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:52,367 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:16:52,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:52,389 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:16:52,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:52,430 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:52,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:52,467 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:52,467 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:52,504 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:52,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:52,544 INFO L142 QuantifierPusher]: treesize reduction 22, result has 65.6 percent of original size [2021-03-24 20:16:52,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:16:52,590 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.7 percent of original size [2021-03-24 20:16:52,590 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:52,607 INFO L142 QuantifierPusher]: treesize reduction 27, result has 53.4 percent of original size [2021-03-24 20:16:52,608 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:16:52,649 INFO L142 QuantifierPusher]: treesize reduction 55, result has 32.9 percent of original size [2021-03-24 20:16:52,650 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:52,690 INFO L142 QuantifierPusher]: treesize reduction 38, result has 54.8 percent of original size [2021-03-24 20:16:52,691 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:16:52,758 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:16:52,759 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:16:52,808 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:16:52,809 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:52,840 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:52,840 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:16:52,865 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:52,865 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:52,866 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:16:52,866 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:52,896 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:16:52,897 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:52,930 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:16:52,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:16:52,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:16:52,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:16:52,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:52,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882272374] [2021-03-24 20:16:52,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:52,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:16:52,990 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978830942] [2021-03-24 20:16:52,990 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:16:52,990 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:52,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:16:52,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:16:52,992 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:16:52,993 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 257 places, 207 transitions, 2849 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:52,993 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:52,993 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:16:52,993 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:53,642 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:16:53,781 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:16:53,944 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 62 [2021-03-24 20:16:54,162 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 64 [2021-03-24 20:16:54,384 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:16:55,376 INFO L129 PetriNetUnfolder]: 172/765 cut-off events. [2021-03-24 20:16:55,376 INFO L130 PetriNetUnfolder]: For 8142/8148 co-relation queries the response was YES. [2021-03-24 20:16:55,381 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4869 conditions, 765 events. 172/765 cut-off events. For 8142/8148 co-relation queries the response was YES. Maximal size of possible extension queue 80. Compared 5624 event pairs, 68 based on Foata normal form. 4/767 useless extension candidates. Maximal degree in co-relation 4793. Up to 492 conditions per place. [2021-03-24 20:16:55,382 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 152 selfloop transitions, 49 changer transitions 19/230 dead transitions. [2021-03-24 20:16:55,382 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 265 places, 230 transitions, 3546 flow [2021-03-24 20:16:55,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:16:55,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:16:55,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2021-03-24 20:16:55,384 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4926059152677858 [2021-03-24 20:16:55,384 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2021-03-24 20:16:55,384 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2021-03-24 20:16:55,385 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:55,385 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2021-03-24 20:16:55,386 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.94444444444446) internal successors, (2465), 18 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:55,388 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:55,388 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:55,388 INFO L185 Difference]: Start difference. First operand has 257 places, 207 transitions, 2849 flow. Second operand 18 states and 2465 transitions. [2021-03-24 20:16:55,388 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 265 places, 230 transitions, 3546 flow [2021-03-24 20:16:55,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 250 places, 230 transitions, 3441 flow, removed 7 selfloop flow, removed 15 redundant places. [2021-03-24 20:16:55,420 INFO L241 Difference]: Finished difference. Result has 253 places, 204 transitions, 2822 flow [2021-03-24 20:16:55,421 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2752, PETRI_DIFFERENCE_MINUEND_PLACES=233, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=207, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=48, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=158, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2822, PETRI_PLACES=253, PETRI_TRANSITIONS=204} [2021-03-24 20:16:55,421 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 187 predicate places. [2021-03-24 20:16:55,421 INFO L480 AbstractCegarLoop]: Abstraction has has 253 places, 204 transitions, 2822 flow [2021-03-24 20:16:55,421 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:55,421 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:55,421 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:55,421 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable139 [2021-03-24 20:16:55,421 INFO L428 AbstractCegarLoop]: === Iteration 141 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:55,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:55,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1288641935, now seen corresponding path program 120 times [2021-03-24 20:16:55,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:55,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [959700990] [2021-03-24 20:16:55,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:55,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:55,481 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:55,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:55,482 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:55,482 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:55,494 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:55,519 INFO L142 QuantifierPusher]: treesize reduction 12, result has 72.7 percent of original size [2021-03-24 20:16:55,520 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:55,546 INFO L142 QuantifierPusher]: treesize reduction 12, result has 80.3 percent of original size [2021-03-24 20:16:55,547 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:16:55,592 INFO L142 QuantifierPusher]: treesize reduction 17, result has 81.7 percent of original size [2021-03-24 20:16:55,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 76 [2021-03-24 20:16:55,652 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.8 percent of original size [2021-03-24 20:16:55,652 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 45 [2021-03-24 20:16:55,680 INFO L142 QuantifierPusher]: treesize reduction 16, result has 69.2 percent of original size [2021-03-24 20:16:55,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:16:55,702 INFO L142 QuantifierPusher]: treesize reduction 16, result has 66.7 percent of original size [2021-03-24 20:16:55,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:55,724 INFO L142 QuantifierPusher]: treesize reduction 23, result has 62.3 percent of original size [2021-03-24 20:16:55,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:55,750 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 20:16:55,751 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:16:55,775 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 20:16:55,775 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:16:55,800 INFO L142 QuantifierPusher]: treesize reduction 23, result has 56.6 percent of original size [2021-03-24 20:16:55,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 30 [2021-03-24 20:16:55,827 INFO L142 QuantifierPusher]: treesize reduction 23, result has 61.7 percent of original size [2021-03-24 20:16:55,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:16:55,860 INFO L142 QuantifierPusher]: treesize reduction 23, result has 58.2 percent of original size [2021-03-24 20:16:55,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:16:55,880 INFO L142 QuantifierPusher]: treesize reduction 23, result has 53.1 percent of original size [2021-03-24 20:16:55,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:16:55,911 INFO L142 QuantifierPusher]: treesize reduction 39, result has 47.3 percent of original size [2021-03-24 20:16:55,912 INFO L147 QuantifierPusher]: treesize reduction 7, result has 80.0 percent of original size 28 [2021-03-24 20:16:55,960 INFO L142 QuantifierPusher]: treesize reduction 47, result has 53.0 percent of original size [2021-03-24 20:16:55,960 INFO L147 QuantifierPusher]: treesize reduction 6, result has 88.7 percent of original size 47 [2021-03-24 20:16:56,020 INFO L142 QuantifierPusher]: treesize reduction 19, result has 68.3 percent of original size [2021-03-24 20:16:56,021 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:16:56,060 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.0 percent of original size [2021-03-24 20:16:56,060 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 31 [2021-03-24 20:16:56,086 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.0 percent of original size [2021-03-24 20:16:56,087 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.9 percent of original size 24 [2021-03-24 20:16:56,133 INFO L142 QuantifierPusher]: treesize reduction 46, result has 35.2 percent of original size [2021-03-24 20:16:56,133 INFO L147 QuantifierPusher]: treesize reduction 3, result has 88.0 percent of original size 22 [2021-03-24 20:16:56,180 INFO L142 QuantifierPusher]: treesize reduction 19, result has 51.3 percent of original size [2021-03-24 20:16:56,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 20 [2021-03-24 20:16:56,215 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:16:56,216 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:16:56,248 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:16:56,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:16:56,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:16:56,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [959700990] [2021-03-24 20:16:56,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:16:56,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:16:56,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228536620] [2021-03-24 20:16:56,278 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:16:56,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:16:56,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:16:56,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:16:56,280 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:16:56,280 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 253 places, 204 transitions, 2822 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:56,280 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:16:56,280 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:16:56,281 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:16:57,218 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 57 [2021-03-24 20:16:57,396 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 62 [2021-03-24 20:16:57,624 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 64 [2021-03-24 20:16:57,834 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 68 [2021-03-24 20:16:58,254 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-03-24 20:16:58,460 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-03-24 20:16:59,196 INFO L129 PetriNetUnfolder]: 157/721 cut-off events. [2021-03-24 20:16:59,196 INFO L130 PetriNetUnfolder]: For 7697/7703 co-relation queries the response was YES. [2021-03-24 20:16:59,200 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4632 conditions, 721 events. 157/721 cut-off events. For 7697/7703 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 5218 event pairs, 69 based on Foata normal form. 3/722 useless extension candidates. Maximal degree in co-relation 4556. Up to 473 conditions per place. [2021-03-24 20:16:59,202 INFO L132 encePairwiseOnDemand]: 257/278 looper letters, 150 selfloop transitions, 49 changer transitions 25/230 dead transitions. [2021-03-24 20:16:59,202 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 271 places, 230 transitions, 3565 flow [2021-03-24 20:16:59,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-24 20:16:59,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2021-03-24 20:16:59,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1954 transitions. [2021-03-24 20:16:59,204 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3194898626553303 [2021-03-24 20:16:59,204 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1954 transitions. [2021-03-24 20:16:59,204 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1954 transitions. [2021-03-24 20:16:59,204 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:16:59,204 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1954 transitions. [2021-03-24 20:16:59,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 23 states, 22 states have (on average 88.81818181818181) internal successors, (1954), 22 states have internal predecessors, (1954), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:59,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:59,207 INFO L81 ComplementDD]: Finished complementDD. Result has 23 states, 23 states have (on average 278.0) internal successors, (6394), 23 states have internal predecessors, (6394), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:59,208 INFO L185 Difference]: Start difference. First operand has 253 places, 204 transitions, 2822 flow. Second operand 22 states and 1954 transitions. [2021-03-24 20:16:59,208 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 271 places, 230 transitions, 3565 flow [2021-03-24 20:16:59,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 255 places, 230 transitions, 3412 flow, removed 21 selfloop flow, removed 16 redundant places. [2021-03-24 20:16:59,238 INFO L241 Difference]: Finished difference. Result has 258 places, 197 transitions, 2692 flow [2021-03-24 20:16:59,239 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2674, PETRI_DIFFERENCE_MINUEND_PLACES=234, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=203, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=44, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=2692, PETRI_PLACES=258, PETRI_TRANSITIONS=197} [2021-03-24 20:16:59,239 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 192 predicate places. [2021-03-24 20:16:59,239 INFO L480 AbstractCegarLoop]: Abstraction has has 258 places, 197 transitions, 2692 flow [2021-03-24 20:16:59,239 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:16:59,239 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:16:59,239 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:16:59,239 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable140 [2021-03-24 20:16:59,239 INFO L428 AbstractCegarLoop]: === Iteration 142 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:16:59,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:16:59,239 INFO L82 PathProgramCache]: Analyzing trace with hash 2062714641, now seen corresponding path program 121 times [2021-03-24 20:16:59,240 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:16:59,240 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377162115] [2021-03-24 20:16:59,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:16:59,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:16:59,302 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:59,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:16:59,303 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:16:59,303 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:16:59,316 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:16:59,316 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:59,341 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:16:59,341 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:16:59,368 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:16:59,368 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:16:59,412 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:16:59,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:16:59,468 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:16:59,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:16:59,489 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:16:59,490 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:16:59,512 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:16:59,513 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:16:59,553 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:59,554 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:59,591 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:59,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:59,629 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:16:59,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:59,668 INFO L142 QuantifierPusher]: treesize reduction 24, result has 59.3 percent of original size [2021-03-24 20:16:59,668 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:16:59,708 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:16:59,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:16:59,761 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:16:59,762 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:16:59,820 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:16:59,821 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:16:59,842 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:16:59,843 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:16:59,895 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:16:59,896 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:16:59,946 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:16:59,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:16:59,979 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:16:59,980 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:00,006 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:00,006 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:00,007 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:00,007 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:00,039 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:00,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:00,074 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:00,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:00,108 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:00,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:00,150 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:00,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377162115] [2021-03-24 20:17:00,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:00,150 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:00,150 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1512859499] [2021-03-24 20:17:00,150 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:00,151 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:00,151 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:00,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:00,153 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:00,154 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 258 places, 197 transitions, 2692 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:00,155 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:00,155 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:00,155 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:00,934 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:17:01,089 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 62 [2021-03-24 20:17:01,295 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-03-24 20:17:01,521 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 20:17:01,872 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:17:02,638 INFO L129 PetriNetUnfolder]: 149/664 cut-off events. [2021-03-24 20:17:02,638 INFO L130 PetriNetUnfolder]: For 7167/7177 co-relation queries the response was YES. [2021-03-24 20:17:02,641 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4283 conditions, 664 events. 149/664 cut-off events. For 7167/7177 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 4656 event pairs, 63 based on Foata normal form. 7/671 useless extension candidates. Maximal degree in co-relation 4206. Up to 459 conditions per place. [2021-03-24 20:17:02,643 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 148 selfloop transitions, 33 changer transitions 26/217 dead transitions. [2021-03-24 20:17:02,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 268 places, 217 transitions, 3336 flow [2021-03-24 20:17:02,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:02,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:02,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2465 transitions. [2021-03-24 20:17:02,645 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4926059152677858 [2021-03-24 20:17:02,645 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2465 transitions. [2021-03-24 20:17:02,645 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2465 transitions. [2021-03-24 20:17:02,645 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:02,645 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2465 transitions. [2021-03-24 20:17:02,646 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.94444444444446) internal successors, (2465), 18 states have internal predecessors, (2465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:02,648 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:02,648 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:02,649 INFO L185 Difference]: Start difference. First operand has 258 places, 197 transitions, 2692 flow. Second operand 18 states and 2465 transitions. [2021-03-24 20:17:02,649 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 268 places, 217 transitions, 3336 flow [2021-03-24 20:17:02,675 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 247 places, 217 transitions, 3006 flow, removed 34 selfloop flow, removed 21 redundant places. [2021-03-24 20:17:02,677 INFO L241 Difference]: Finished difference. Result has 252 places, 188 transitions, 2354 flow [2021-03-24 20:17:02,677 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2374, PETRI_DIFFERENCE_MINUEND_PLACES=230, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=163, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2354, PETRI_PLACES=252, PETRI_TRANSITIONS=188} [2021-03-24 20:17:02,677 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 186 predicate places. [2021-03-24 20:17:02,677 INFO L480 AbstractCegarLoop]: Abstraction has has 252 places, 188 transitions, 2354 flow [2021-03-24 20:17:02,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:02,678 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:02,678 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:02,678 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable141 [2021-03-24 20:17:02,678 INFO L428 AbstractCegarLoop]: === Iteration 143 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:02,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:02,678 INFO L82 PathProgramCache]: Analyzing trace with hash -91722471, now seen corresponding path program 122 times [2021-03-24 20:17:02,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:02,678 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147401549] [2021-03-24 20:17:02,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:02,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:02,724 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:02,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:02,725 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:02,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:02,745 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:02,746 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:02,781 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:17:02,781 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:02,829 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:17:02,830 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:17:02,896 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:17:02,896 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:17:02,961 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:17:02,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:02,982 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:17:02,982 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:03,004 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:17:03,004 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:17:03,044 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:03,045 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:03,082 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:03,082 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:03,121 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:03,122 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:03,162 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:17:03,162 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:17:03,214 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:17:03,214 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:17:03,232 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:17:03,233 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:17:03,276 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.0 percent of original size [2021-03-24 20:17:03,277 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.4 percent of original size 27 [2021-03-24 20:17:03,322 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:17:03,322 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:17:03,371 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:17:03,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:17:03,404 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:17:03,404 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:03,440 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:17:03,441 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:03,466 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:17:03,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:03,500 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:17:03,500 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:03,536 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:17:03,537 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:03,570 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:17:03,571 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:03,571 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:03,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:03,603 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:03,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147401549] [2021-03-24 20:17:03,604 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:03,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:03,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161069134] [2021-03-24 20:17:03,604 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:03,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:03,604 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:03,604 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:03,606 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:03,607 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 252 places, 188 transitions, 2354 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:03,607 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:03,607 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:03,607 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:04,398 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:17:04,557 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:17:04,793 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:17:05,033 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 67 [2021-03-24 20:17:05,468 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:05,684 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:17:06,033 INFO L129 PetriNetUnfolder]: 134/614 cut-off events. [2021-03-24 20:17:06,034 INFO L130 PetriNetUnfolder]: For 5624/5632 co-relation queries the response was YES. [2021-03-24 20:17:06,037 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3704 conditions, 614 events. 134/614 cut-off events. For 5624/5632 co-relation queries the response was YES. Maximal size of possible extension queue 65. Compared 4196 event pairs, 61 based on Foata normal form. 5/619 useless extension candidates. Maximal degree in co-relation 3627. Up to 453 conditions per place. [2021-03-24 20:17:06,038 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 146 selfloop transitions, 32 changer transitions 12/200 dead transitions. [2021-03-24 20:17:06,038 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 262 places, 200 transitions, 2870 flow [2021-03-24 20:17:06,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:06,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:06,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2456 transitions. [2021-03-24 20:17:06,040 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4908073541167066 [2021-03-24 20:17:06,040 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2456 transitions. [2021-03-24 20:17:06,040 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2456 transitions. [2021-03-24 20:17:06,041 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:06,041 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2456 transitions. [2021-03-24 20:17:06,042 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.44444444444446) internal successors, (2456), 18 states have internal predecessors, (2456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:06,044 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:06,044 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:06,044 INFO L185 Difference]: Start difference. First operand has 252 places, 188 transitions, 2354 flow. Second operand 18 states and 2456 transitions. [2021-03-24 20:17:06,044 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 262 places, 200 transitions, 2870 flow [2021-03-24 20:17:06,066 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 243 places, 200 transitions, 2725 flow, removed 8 selfloop flow, removed 19 redundant places. [2021-03-24 20:17:06,068 INFO L241 Difference]: Finished difference. Result has 247 places, 186 transitions, 2265 flow [2021-03-24 20:17:06,068 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2211, PETRI_DIFFERENCE_MINUEND_PLACES=226, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=188, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2265, PETRI_PLACES=247, PETRI_TRANSITIONS=186} [2021-03-24 20:17:06,068 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 181 predicate places. [2021-03-24 20:17:06,068 INFO L480 AbstractCegarLoop]: Abstraction has has 247 places, 186 transitions, 2265 flow [2021-03-24 20:17:06,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:06,069 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:06,069 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:06,069 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable142 [2021-03-24 20:17:06,069 INFO L428 AbstractCegarLoop]: === Iteration 144 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:06,069 INFO L82 PathProgramCache]: Analyzing trace with hash 1092365149, now seen corresponding path program 123 times [2021-03-24 20:17:06,069 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:06,069 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1212579458] [2021-03-24 20:17:06,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:06,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:06,120 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:06,121 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:06,121 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:06,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:06,134 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:06,134 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:06,160 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:17:06,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:06,196 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:17:06,196 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:17:06,251 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:17:06,251 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:17:06,320 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:17:06,321 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:06,343 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:17:06,343 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:06,367 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:17:06,368 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:17:06,411 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:06,411 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:06,449 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:06,449 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:06,488 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:06,488 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:06,529 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:17:06,529 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:17:06,580 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:17:06,580 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:17:06,599 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:17:06,599 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:17:06,645 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:17:06,645 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:17:06,693 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.4 percent of original size [2021-03-24 20:17:06,694 INFO L147 QuantifierPusher]: treesize reduction 5, result has 86.8 percent of original size 33 [2021-03-24 20:17:06,746 INFO L142 QuantifierPusher]: treesize reduction 14, result has 64.1 percent of original size [2021-03-24 20:17:06,747 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:17:06,782 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:17:06,783 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:06,821 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:17:06,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:06,848 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:17:06,849 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:06,884 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:17:06,885 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:06,924 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:17:06,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:06,959 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:17:06,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:06,961 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:06,961 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:06,996 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:06,997 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1212579458] [2021-03-24 20:17:06,997 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:06,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:06,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517983070] [2021-03-24 20:17:06,997 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:06,997 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:06,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:06,997 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:06,999 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:07,000 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 247 places, 186 transitions, 2265 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:07,000 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:07,000 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:07,000 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:07,784 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:17:07,935 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:17:08,158 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:17:08,749 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:08,985 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:17:09,311 INFO L129 PetriNetUnfolder]: 132/590 cut-off events. [2021-03-24 20:17:09,311 INFO L130 PetriNetUnfolder]: For 4957/4963 co-relation queries the response was YES. [2021-03-24 20:17:09,314 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3478 conditions, 590 events. 132/590 cut-off events. For 4957/4963 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3918 event pairs, 57 based on Foata normal form. 3/593 useless extension candidates. Maximal degree in co-relation 3403. Up to 415 conditions per place. [2021-03-24 20:17:09,315 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 143 selfloop transitions, 36 changer transitions 11/200 dead transitions. [2021-03-24 20:17:09,315 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 200 transitions, 2806 flow [2021-03-24 20:17:09,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:09,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2463 transitions. [2021-03-24 20:17:09,317 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4922062350119904 [2021-03-24 20:17:09,317 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2463 transitions. [2021-03-24 20:17:09,318 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2463 transitions. [2021-03-24 20:17:09,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:09,318 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2463 transitions. [2021-03-24 20:17:09,319 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.83333333333334) internal successors, (2463), 18 states have internal predecessors, (2463), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:09,338 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:09,339 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:09,339 INFO L185 Difference]: Start difference. First operand has 247 places, 186 transitions, 2265 flow. Second operand 18 states and 2463 transitions. [2021-03-24 20:17:09,339 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 200 transitions, 2806 flow [2021-03-24 20:17:09,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 240 places, 200 transitions, 2697 flow, removed 10 selfloop flow, removed 16 redundant places. [2021-03-24 20:17:09,360 INFO L241 Difference]: Finished difference. Result has 243 places, 184 transitions, 2224 flow [2021-03-24 20:17:09,360 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2164, PETRI_DIFFERENCE_MINUEND_PLACES=223, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=186, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=36, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=150, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2224, PETRI_PLACES=243, PETRI_TRANSITIONS=184} [2021-03-24 20:17:09,360 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 177 predicate places. [2021-03-24 20:17:09,360 INFO L480 AbstractCegarLoop]: Abstraction has has 243 places, 184 transitions, 2224 flow [2021-03-24 20:17:09,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:09,360 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:09,360 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:09,361 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable143 [2021-03-24 20:17:09,361 INFO L428 AbstractCegarLoop]: === Iteration 145 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:09,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:09,361 INFO L82 PathProgramCache]: Analyzing trace with hash 2129673431, now seen corresponding path program 124 times [2021-03-24 20:17:09,361 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:09,361 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229959586] [2021-03-24 20:17:09,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:09,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:09,407 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:09,408 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:09,408 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:09,409 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:09,421 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:09,421 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:09,447 INFO L142 QuantifierPusher]: treesize reduction 20, result has 64.9 percent of original size [2021-03-24 20:17:09,447 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:09,483 INFO L142 QuantifierPusher]: treesize reduction 32, result has 61.9 percent of original size [2021-03-24 20:17:09,483 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 52 [2021-03-24 20:17:09,536 INFO L142 QuantifierPusher]: treesize reduction 25, result has 75.5 percent of original size [2021-03-24 20:17:09,536 INFO L147 QuantifierPusher]: treesize reduction 3, result has 96.1 percent of original size 74 [2021-03-24 20:17:09,604 INFO L142 QuantifierPusher]: treesize reduction 14, result has 73.1 percent of original size [2021-03-24 20:17:09,604 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:09,626 INFO L142 QuantifierPusher]: treesize reduction 14, result has 70.8 percent of original size [2021-03-24 20:17:09,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:09,648 INFO L142 QuantifierPusher]: treesize reduction 18, result has 70.5 percent of original size [2021-03-24 20:17:09,649 INFO L147 QuantifierPusher]: treesize reduction 3, result has 93.0 percent of original size 40 [2021-03-24 20:17:09,690 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:09,691 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:09,729 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:09,729 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:09,767 INFO L142 QuantifierPusher]: treesize reduction 18, result has 66.0 percent of original size [2021-03-24 20:17:09,768 INFO L147 QuantifierPusher]: treesize reduction 3, result has 91.4 percent of original size 32 [2021-03-24 20:17:09,807 INFO L142 QuantifierPusher]: treesize reduction 16, result has 73.3 percent of original size [2021-03-24 20:17:09,808 INFO L147 QuantifierPusher]: treesize reduction 5, result has 88.6 percent of original size 39 [2021-03-24 20:17:09,858 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:17:09,859 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:17:09,878 INFO L142 QuantifierPusher]: treesize reduction 18, result has 64.7 percent of original size [2021-03-24 20:17:09,878 INFO L147 QuantifierPusher]: treesize reduction 5, result has 84.8 percent of original size 28 [2021-03-24 20:17:09,923 INFO L142 QuantifierPusher]: treesize reduction 16, result has 70.9 percent of original size [2021-03-24 20:17:09,924 INFO L147 QuantifierPusher]: treesize reduction 5, result has 87.2 percent of original size 34 [2021-03-24 20:17:09,971 INFO L142 QuantifierPusher]: treesize reduction 14, result has 65.0 percent of original size [2021-03-24 20:17:09,971 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:17:10,001 INFO L142 QuantifierPusher]: treesize reduction 16, result has 64.4 percent of original size [2021-03-24 20:17:10,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:17:10,032 INFO L142 QuantifierPusher]: treesize reduction 16, result has 63.6 percent of original size [2021-03-24 20:17:10,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:10,066 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:17:10,066 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:10,090 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-24 20:17:10,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:10,122 INFO L142 QuantifierPusher]: treesize reduction 16, result has 59.0 percent of original size [2021-03-24 20:17:10,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:10,155 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:17:10,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:10,187 INFO L142 QuantifierPusher]: treesize reduction 11, result has 60.7 percent of original size [2021-03-24 20:17:10,187 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:10,188 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:10,188 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:10,218 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:10,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229959586] [2021-03-24 20:17:10,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:10,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:10,219 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1472518580] [2021-03-24 20:17:10,219 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:10,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:10,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:10,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:10,220 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:10,221 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 243 places, 184 transitions, 2224 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:10,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:10,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:10,221 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:11,018 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:17:11,172 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:17:11,399 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:17:11,944 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-03-24 20:17:12,177 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 20:17:12,545 INFO L129 PetriNetUnfolder]: 130/582 cut-off events. [2021-03-24 20:17:12,545 INFO L130 PetriNetUnfolder]: For 4789/4795 co-relation queries the response was YES. [2021-03-24 20:17:12,548 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3401 conditions, 582 events. 130/582 cut-off events. For 4789/4795 co-relation queries the response was YES. Maximal size of possible extension queue 62. Compared 3845 event pairs, 57 based on Foata normal form. 4/586 useless extension candidates. Maximal degree in co-relation 3327. Up to 404 conditions per place. [2021-03-24 20:17:12,549 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 136 selfloop transitions, 37 changer transitions 12/194 dead transitions. [2021-03-24 20:17:12,549 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 194 transitions, 2708 flow [2021-03-24 20:17:12,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:12,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:12,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2021-03-24 20:17:12,552 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49140687450039966 [2021-03-24 20:17:12,552 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2021-03-24 20:17:12,552 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2021-03-24 20:17:12,552 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:12,552 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2021-03-24 20:17:12,553 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:12,555 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:12,555 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:12,555 INFO L185 Difference]: Start difference. First operand has 243 places, 184 transitions, 2224 flow. Second operand 18 states and 2459 transitions. [2021-03-24 20:17:12,555 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 194 transitions, 2708 flow [2021-03-24 20:17:12,574 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 234 places, 194 transitions, 2570 flow, removed 12 selfloop flow, removed 22 redundant places. [2021-03-24 20:17:12,576 INFO L241 Difference]: Finished difference. Result has 236 places, 178 transitions, 2121 flow [2021-03-24 20:17:12,576 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=2089, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=183, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=37, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=2121, PETRI_PLACES=236, PETRI_TRANSITIONS=178} [2021-03-24 20:17:12,576 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 170 predicate places. [2021-03-24 20:17:12,576 INFO L480 AbstractCegarLoop]: Abstraction has has 236 places, 178 transitions, 2121 flow [2021-03-24 20:17:12,577 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:12,577 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:12,577 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:12,577 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable144 [2021-03-24 20:17:12,577 INFO L428 AbstractCegarLoop]: === Iteration 146 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:12,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:12,577 INFO L82 PathProgramCache]: Analyzing trace with hash 1852095021, now seen corresponding path program 125 times [2021-03-24 20:17:12,577 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:12,577 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378677824] [2021-03-24 20:17:12,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:12,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:12,627 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:12,628 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:12,628 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:12,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:12,641 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:12,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:12,666 INFO L142 QuantifierPusher]: treesize reduction 22, result has 62.1 percent of original size [2021-03-24 20:17:12,666 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 36 [2021-03-24 20:17:12,701 INFO L142 QuantifierPusher]: treesize reduction 25, result has 67.1 percent of original size [2021-03-24 20:17:12,701 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 51 [2021-03-24 20:17:12,753 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:17:12,753 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:17:12,812 INFO L142 QuantifierPusher]: treesize reduction 25, result has 74.0 percent of original size [2021-03-24 20:17:12,812 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 71 [2021-03-24 20:17:12,883 INFO L142 QuantifierPusher]: treesize reduction 25, result has 73.1 percent of original size [2021-03-24 20:17:12,883 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 68 [2021-03-24 20:17:12,884 INFO L142 QuantifierPusher]: treesize reduction 12, result has 76.0 percent of original size [2021-03-24 20:17:12,884 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:12,908 INFO L142 QuantifierPusher]: treesize reduction 12, result has 73.9 percent of original size [2021-03-24 20:17:12,908 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:12,932 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.8 percent of original size [2021-03-24 20:17:12,932 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:17:12,959 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:17:12,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:17:12,984 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:17:12,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:17:13,010 INFO L142 QuantifierPusher]: treesize reduction 19, result has 62.7 percent of original size [2021-03-24 20:17:13,011 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 32 [2021-03-24 20:17:13,038 INFO L142 QuantifierPusher]: treesize reduction 19, result has 67.2 percent of original size [2021-03-24 20:17:13,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:17:13,074 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:17:13,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:13,093 INFO L142 QuantifierPusher]: treesize reduction 24, result has 53.8 percent of original size [2021-03-24 20:17:13,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:13,125 INFO L142 QuantifierPusher]: treesize reduction 19, result has 64.2 percent of original size [2021-03-24 20:17:13,125 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:13,159 INFO L142 QuantifierPusher]: treesize reduction 12, result has 68.4 percent of original size [2021-03-24 20:17:13,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 26 [2021-03-24 20:17:13,190 INFO L142 QuantifierPusher]: treesize reduction 14, result has 67.4 percent of original size [2021-03-24 20:17:13,191 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 29 [2021-03-24 20:17:13,224 INFO L142 QuantifierPusher]: treesize reduction 14, result has 63.2 percent of original size [2021-03-24 20:17:13,224 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 24 [2021-03-24 20:17:13,258 INFO L142 QuantifierPusher]: treesize reduction 24, result has 42.9 percent of original size [2021-03-24 20:17:13,259 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 18 [2021-03-24 20:17:13,289 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:13,290 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:13,322 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:13,322 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:13,357 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:13,357 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:13,390 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:13,390 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:13,391 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:13,391 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:13,421 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:13,421 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378677824] [2021-03-24 20:17:13,421 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:13,422 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:17:13,422 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947866843] [2021-03-24 20:17:13,422 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:17:13,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:13,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:17:13,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:17:13,423 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:17:13,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 236 places, 178 transitions, 2121 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:13,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:13,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:17:13,424 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:14,232 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:17:14,389 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:17:14,626 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:17:15,082 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2021-03-24 20:17:15,281 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2021-03-24 20:17:15,453 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-03-24 20:17:16,051 INFO L129 PetriNetUnfolder]: 108/495 cut-off events. [2021-03-24 20:17:16,052 INFO L130 PetriNetUnfolder]: For 4009/4015 co-relation queries the response was YES. [2021-03-24 20:17:16,054 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2997 conditions, 495 events. 108/495 cut-off events. For 4009/4015 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 3035 event pairs, 45 based on Foata normal form. 3/498 useless extension candidates. Maximal degree in co-relation 2927. Up to 351 conditions per place. [2021-03-24 20:17:16,055 INFO L132 encePairwiseOnDemand]: 258/278 looper letters, 134 selfloop transitions, 33 changer transitions 21/193 dead transitions. [2021-03-24 20:17:16,055 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 251 places, 193 transitions, 2642 flow [2021-03-24 20:17:16,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-24 20:17:16,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2021-03-24 20:17:16,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1776 transitions. [2021-03-24 20:17:16,057 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3194244604316547 [2021-03-24 20:17:16,057 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1776 transitions. [2021-03-24 20:17:16,057 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1776 transitions. [2021-03-24 20:17:16,058 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:16,058 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1776 transitions. [2021-03-24 20:17:16,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 88.8) internal successors, (1776), 20 states have internal predecessors, (1776), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:16,061 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:16,061 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 278.0) internal successors, (5838), 21 states have internal predecessors, (5838), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:16,061 INFO L185 Difference]: Start difference. First operand has 236 places, 178 transitions, 2121 flow. Second operand 20 states and 1776 transitions. [2021-03-24 20:17:16,061 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 251 places, 193 transitions, 2642 flow [2021-03-24 20:17:16,078 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 233 places, 193 transitions, 2397 flow, removed 8 selfloop flow, removed 18 redundant places. [2021-03-24 20:17:16,080 INFO L241 Difference]: Finished difference. Result has 233 places, 167 transitions, 1830 flow [2021-03-24 20:17:16,080 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1882, PETRI_DIFFERENCE_MINUEND_PLACES=214, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=177, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=33, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=144, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=1830, PETRI_PLACES=233, PETRI_TRANSITIONS=167} [2021-03-24 20:17:16,080 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 167 predicate places. [2021-03-24 20:17:16,080 INFO L480 AbstractCegarLoop]: Abstraction has has 233 places, 167 transitions, 1830 flow [2021-03-24 20:17:16,080 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:16,080 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:16,080 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:16,080 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable145 [2021-03-24 20:17:16,081 INFO L428 AbstractCegarLoop]: === Iteration 147 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:16,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:16,081 INFO L82 PathProgramCache]: Analyzing trace with hash -608151095, now seen corresponding path program 126 times [2021-03-24 20:17:16,081 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:16,081 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35011465] [2021-03-24 20:17:16,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:16,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:16,139 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:16,140 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:16,140 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:16,141 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:16,154 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:16,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:16,181 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:17:16,182 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:17:16,227 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:17:16,228 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:17:16,289 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:16,289 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:16,359 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:17:16,360 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:17:16,443 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:16,444 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:16,444 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:17:16,445 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:16,474 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:17:16,474 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:16,504 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:17:16,505 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:17:16,558 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:16,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:16,607 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:16,607 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:16,656 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:16,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:16,708 INFO L142 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-03-24 20:17:16,709 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:17:16,762 INFO L142 QuantifierPusher]: treesize reduction 49, result has 55.5 percent of original size [2021-03-24 20:17:16,763 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:17:16,828 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-03-24 20:17:16,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:16,858 INFO L142 QuantifierPusher]: treesize reduction 54, result has 48.1 percent of original size [2021-03-24 20:17:16,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:17:16,919 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-03-24 20:17:16,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:16,984 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:17:16,985 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:17:17,019 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:17:17,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:17:17,075 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:17:17,075 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:17,107 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:17:17,108 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:17,158 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:17:17,158 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:17,213 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:17,213 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:17,248 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:17,248 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:17,248 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:17:17,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:17:17,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:17,280 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35011465] [2021-03-24 20:17:17,280 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:17,280 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:17:17,280 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [362373261] [2021-03-24 20:17:17,280 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:17:17,280 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:17,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:17:17,281 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:17:17,282 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:17:17,283 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 233 places, 167 transitions, 1830 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:17,283 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:17,283 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:17:17,283 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:18,004 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2021-03-24 20:17:18,169 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2021-03-24 20:17:18,358 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-03-24 20:17:18,571 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:17:18,961 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:17:19,319 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:19,522 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:17:19,893 INFO L129 PetriNetUnfolder]: 106/462 cut-off events. [2021-03-24 20:17:19,893 INFO L130 PetriNetUnfolder]: For 3318/3324 co-relation queries the response was YES. [2021-03-24 20:17:19,895 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2665 conditions, 462 events. 106/462 cut-off events. For 3318/3324 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2734 event pairs, 45 based on Foata normal form. 3/465 useless extension candidates. Maximal degree in co-relation 2597. Up to 357 conditions per place. [2021-03-24 20:17:19,896 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 135 selfloop transitions, 27 changer transitions 16/183 dead transitions. [2021-03-24 20:17:19,896 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 183 transitions, 2384 flow [2021-03-24 20:17:19,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:19,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:19,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1598 transitions. [2021-03-24 20:17:19,899 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3193445243804956 [2021-03-24 20:17:19,899 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1598 transitions. [2021-03-24 20:17:19,899 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1598 transitions. [2021-03-24 20:17:19,899 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:19,899 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1598 transitions. [2021-03-24 20:17:19,900 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.77777777777777) internal successors, (1598), 18 states have internal predecessors, (1598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:19,901 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:19,902 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:19,902 INFO L185 Difference]: Start difference. First operand has 233 places, 167 transitions, 1830 flow. Second operand 18 states and 1598 transitions. [2021-03-24 20:17:19,902 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 183 transitions, 2384 flow [2021-03-24 20:17:19,915 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 207 places, 183 transitions, 1929 flow, removed 22 selfloop flow, removed 34 redundant places. [2021-03-24 20:17:19,916 INFO L241 Difference]: Finished difference. Result has 212 places, 165 transitions, 1509 flow [2021-03-24 20:17:19,917 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1421, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1509, PETRI_PLACES=212, PETRI_TRANSITIONS=165} [2021-03-24 20:17:19,917 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 146 predicate places. [2021-03-24 20:17:19,917 INFO L480 AbstractCegarLoop]: Abstraction has has 212 places, 165 transitions, 1509 flow [2021-03-24 20:17:19,917 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:19,917 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:19,917 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:19,917 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable146 [2021-03-24 20:17:19,917 INFO L428 AbstractCegarLoop]: === Iteration 148 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:19,917 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:19,917 INFO L82 PathProgramCache]: Analyzing trace with hash 1505166539, now seen corresponding path program 127 times [2021-03-24 20:17:19,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:19,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [356818126] [2021-03-24 20:17:19,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:19,968 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:19,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:19,969 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:19,969 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:19,982 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:19,983 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:20,010 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:20,010 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:20,039 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:20,040 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:20,089 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:20,089 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:20,150 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:20,151 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:20,174 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:20,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:20,199 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:20,199 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:20,244 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:20,245 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:20,286 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:20,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:20,327 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:20,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:20,371 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:20,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:20,416 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:17:20,417 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:20,453 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:17:20,454 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:20,475 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:17:20,475 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:20,523 INFO L142 QuantifierPusher]: treesize reduction 31, result has 46.6 percent of original size [2021-03-24 20:17:20,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:20,571 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:17:20,572 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:20,624 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:20,624 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:20,660 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:20,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:20,688 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:20,688 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:20,689 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:20,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:20,730 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:20,730 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:20,766 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:20,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:20,800 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:20,801 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:20,833 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:20,833 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [356818126] [2021-03-24 20:17:20,833 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:20,833 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:20,833 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1879673182] [2021-03-24 20:17:20,833 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:20,833 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:20,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:20,834 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:20,835 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:20,836 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 165 transitions, 1509 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:20,836 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:20,836 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:20,836 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:21,521 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:17:21,671 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:17:21,846 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:17:22,052 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:17:22,291 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-03-24 20:17:22,635 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-03-24 20:17:23,437 INFO L129 PetriNetUnfolder]: 114/475 cut-off events. [2021-03-24 20:17:23,437 INFO L130 PetriNetUnfolder]: For 2492/2498 co-relation queries the response was YES. [2021-03-24 20:17:23,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2382 conditions, 475 events. 114/475 cut-off events. For 2492/2498 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2866 event pairs, 46 based on Foata normal form. 3/478 useless extension candidates. Maximal degree in co-relation 2322. Up to 328 conditions per place. [2021-03-24 20:17:23,440 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 132 selfloop transitions, 28 changer transitions 26/195 dead transitions. [2021-03-24 20:17:23,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 222 places, 195 transitions, 2153 flow [2021-03-24 20:17:23,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:23,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:23,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2462 transitions. [2021-03-24 20:17:23,443 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4920063948840927 [2021-03-24 20:17:23,443 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2462 transitions. [2021-03-24 20:17:23,443 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2462 transitions. [2021-03-24 20:17:23,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:23,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2462 transitions. [2021-03-24 20:17:23,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.77777777777777) internal successors, (2462), 18 states have internal predecessors, (2462), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:23,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:23,446 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:23,446 INFO L185 Difference]: Start difference. First operand has 212 places, 165 transitions, 1509 flow. Second operand 18 states and 2462 transitions. [2021-03-24 20:17:23,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 222 places, 195 transitions, 2153 flow [2021-03-24 20:17:23,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 195 transitions, 2073 flow, removed 4 selfloop flow, removed 14 redundant places. [2021-03-24 20:17:23,459 INFO L241 Difference]: Finished difference. Result has 214 places, 165 transitions, 1502 flow [2021-03-24 20:17:23,460 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1432, PETRI_DIFFERENCE_MINUEND_PLACES=191, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=137, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1502, PETRI_PLACES=214, PETRI_TRANSITIONS=165} [2021-03-24 20:17:23,460 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 148 predicate places. [2021-03-24 20:17:23,460 INFO L480 AbstractCegarLoop]: Abstraction has has 214 places, 165 transitions, 1502 flow [2021-03-24 20:17:23,460 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:23,460 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:23,460 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:23,460 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable147 [2021-03-24 20:17:23,460 INFO L428 AbstractCegarLoop]: === Iteration 149 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:23,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:23,460 INFO L82 PathProgramCache]: Analyzing trace with hash 1918660385, now seen corresponding path program 128 times [2021-03-24 20:17:23,461 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:23,461 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [582605605] [2021-03-24 20:17:23,461 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:23,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:23,514 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:23,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:23,515 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:23,515 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:23,528 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:23,529 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:23,555 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:23,556 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:23,585 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:23,586 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:23,635 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:23,636 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:23,698 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:23,698 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:23,723 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:23,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:23,749 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:23,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:23,795 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:23,796 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:23,838 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:23,838 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:23,880 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:23,881 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:23,926 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:23,927 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:23,973 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:17:23,974 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:17:24,029 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:17:24,029 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:17:24,095 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:17:24,095 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:17:24,121 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:17:24,121 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:17:24,181 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:17:24,181 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:17:24,237 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:24,237 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:24,272 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:24,272 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:24,299 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:24,299 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:24,300 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:24,300 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:24,334 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:24,335 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:24,371 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:24,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:24,405 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:24,405 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:24,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:24,438 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [582605605] [2021-03-24 20:17:24,438 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:24,438 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:24,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893413610] [2021-03-24 20:17:24,438 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:24,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:24,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:24,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:24,440 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:24,441 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 214 places, 165 transitions, 1502 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:24,441 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:24,441 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:24,441 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:25,131 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:17:25,283 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:17:25,458 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:17:25,658 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-03-24 20:17:25,895 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 20:17:26,225 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:17:27,011 INFO L129 PetriNetUnfolder]: 105/448 cut-off events. [2021-03-24 20:17:27,011 INFO L130 PetriNetUnfolder]: For 2531/2537 co-relation queries the response was YES. [2021-03-24 20:17:27,013 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2257 conditions, 448 events. 105/448 cut-off events. For 2531/2537 co-relation queries the response was YES. Maximal size of possible extension queue 41. Compared 2648 event pairs, 44 based on Foata normal form. 3/451 useless extension candidates. Maximal degree in co-relation 2195. Up to 310 conditions per place. [2021-03-24 20:17:27,014 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 129 selfloop transitions, 23 changer transitions 26/187 dead transitions. [2021-03-24 20:17:27,014 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 187 transitions, 2046 flow [2021-03-24 20:17:27,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:27,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:27,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2021-03-24 20:17:27,017 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49140687450039966 [2021-03-24 20:17:27,017 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2021-03-24 20:17:27,017 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2021-03-24 20:17:27,017 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:27,017 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2021-03-24 20:17:27,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:27,020 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:27,020 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:27,020 INFO L185 Difference]: Start difference. First operand has 214 places, 165 transitions, 1502 flow. Second operand 18 states and 2459 transitions. [2021-03-24 20:17:27,020 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 187 transitions, 2046 flow [2021-03-24 20:17:27,031 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 187 transitions, 1973 flow, removed 11 selfloop flow, removed 14 redundant places. [2021-03-24 20:17:27,033 INFO L241 Difference]: Finished difference. Result has 216 places, 159 transitions, 1409 flow [2021-03-24 20:17:27,033 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1437, PETRI_DIFFERENCE_MINUEND_PLACES=195, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=165, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=142, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1409, PETRI_PLACES=216, PETRI_TRANSITIONS=159} [2021-03-24 20:17:27,033 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 150 predicate places. [2021-03-24 20:17:27,033 INFO L480 AbstractCegarLoop]: Abstraction has has 216 places, 159 transitions, 1409 flow [2021-03-24 20:17:27,033 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:27,033 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:27,034 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:27,034 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable148 [2021-03-24 20:17:27,034 INFO L428 AbstractCegarLoop]: === Iteration 150 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:27,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:27,034 INFO L82 PathProgramCache]: Analyzing trace with hash 1469047919, now seen corresponding path program 129 times [2021-03-24 20:17:27,034 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:27,034 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539869348] [2021-03-24 20:17:27,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:27,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:27,089 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:27,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:27,090 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:27,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:27,104 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:27,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:27,132 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:27,133 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:27,162 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:27,163 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:27,213 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:27,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:27,275 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:27,276 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:27,301 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:27,302 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:27,328 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:27,329 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:27,377 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:27,377 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:27,422 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:27,423 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:27,467 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:27,468 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:27,512 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:27,512 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:27,558 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:17:27,559 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:27,595 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:17:27,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:27,617 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:17:27,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:27,653 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:17:27,653 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:27,690 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:17:27,691 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:17:27,725 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:27,725 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:27,759 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:27,760 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:27,788 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:27,788 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:27,789 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:27,789 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:27,823 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:27,824 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:27,861 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:27,861 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:27,895 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:27,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:27,928 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:27,928 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539869348] [2021-03-24 20:17:27,928 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:27,928 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:27,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444287971] [2021-03-24 20:17:27,928 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:27,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:27,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:27,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:27,930 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:27,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 216 places, 159 transitions, 1409 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:27,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:27,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:27,931 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:28,623 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:17:28,775 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:17:28,953 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:17:29,151 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:17:29,425 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 20:17:29,795 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-24 20:17:30,039 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:30,359 INFO L129 PetriNetUnfolder]: 97/420 cut-off events. [2021-03-24 20:17:30,359 INFO L130 PetriNetUnfolder]: For 2359/2363 co-relation queries the response was YES. [2021-03-24 20:17:30,361 INFO L84 FinitePrefix]: Finished finitePrefix Result has 2100 conditions, 420 events. 97/420 cut-off events. For 2359/2363 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2426 event pairs, 37 based on Foata normal form. 5/425 useless extension candidates. Maximal degree in co-relation 2038. Up to 255 conditions per place. [2021-03-24 20:17:30,362 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 131 selfloop transitions, 28 changer transitions 28/196 dead transitions. [2021-03-24 20:17:30,362 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 225 places, 196 transitions, 2104 flow [2021-03-24 20:17:30,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:30,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:30,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2464 transitions. [2021-03-24 20:17:30,364 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4924060751398881 [2021-03-24 20:17:30,364 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2464 transitions. [2021-03-24 20:17:30,364 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2464 transitions. [2021-03-24 20:17:30,364 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:30,364 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2464 transitions. [2021-03-24 20:17:30,366 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.88888888888889) internal successors, (2464), 18 states have internal predecessors, (2464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:30,367 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:30,368 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:30,368 INFO L185 Difference]: Start difference. First operand has 216 places, 159 transitions, 1409 flow. Second operand 18 states and 2464 transitions. [2021-03-24 20:17:30,368 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 225 places, 196 transitions, 2104 flow [2021-03-24 20:17:30,377 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 196 transitions, 2032 flow, removed 12 selfloop flow, removed 14 redundant places. [2021-03-24 20:17:30,379 INFO L241 Difference]: Finished difference. Result has 215 places, 157 transitions, 1411 flow [2021-03-24 20:17:30,379 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1347, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=159, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=27, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1411, PETRI_PLACES=215, PETRI_TRANSITIONS=157} [2021-03-24 20:17:30,379 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 149 predicate places. [2021-03-24 20:17:30,379 INFO L480 AbstractCegarLoop]: Abstraction has has 215 places, 157 transitions, 1411 flow [2021-03-24 20:17:30,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:30,379 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:30,379 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:30,379 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable149 [2021-03-24 20:17:30,379 INFO L428 AbstractCegarLoop]: === Iteration 151 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:30,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:30,380 INFO L82 PathProgramCache]: Analyzing trace with hash -644023831, now seen corresponding path program 130 times [2021-03-24 20:17:30,380 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:30,380 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1374331310] [2021-03-24 20:17:30,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:30,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:30,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:30,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:30,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:30,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:30,442 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:30,443 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:30,478 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:30,478 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:30,506 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:30,507 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:30,552 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:30,553 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:30,610 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:30,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:30,633 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:30,633 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:30,656 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:30,657 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:30,698 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:30,699 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:30,737 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:30,738 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:30,776 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:30,777 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:30,817 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:30,818 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:30,860 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:17:30,860 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:30,895 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:17:30,896 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:30,917 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:17:30,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:30,950 INFO L142 QuantifierPusher]: treesize reduction 31, result has 46.6 percent of original size [2021-03-24 20:17:30,951 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:30,997 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:17:30,997 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:31,046 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:31,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:31,092 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:31,093 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:31,123 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:31,123 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:31,124 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:31,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:31,156 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:31,156 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:31,190 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:31,190 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:31,222 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:31,222 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:31,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:31,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1374331310] [2021-03-24 20:17:31,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:31,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:31,252 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272217388] [2021-03-24 20:17:31,252 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:31,252 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:31,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:31,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:31,254 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:31,255 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 157 transitions, 1411 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:31,255 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:31,255 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:31,255 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:32,072 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 57 [2021-03-24 20:17:32,225 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:17:32,417 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:17:32,666 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 20:17:32,910 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-03-24 20:17:33,609 INFO L129 PetriNetUnfolder]: 78/359 cut-off events. [2021-03-24 20:17:33,609 INFO L130 PetriNetUnfolder]: For 1979/1983 co-relation queries the response was YES. [2021-03-24 20:17:33,611 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1814 conditions, 359 events. 78/359 cut-off events. For 1979/1983 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1940 event pairs, 31 based on Foata normal form. 3/362 useless extension candidates. Maximal degree in co-relation 1752. Up to 230 conditions per place. [2021-03-24 20:17:33,612 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 120 selfloop transitions, 19 changer transitions 27/175 dead transitions. [2021-03-24 20:17:33,612 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 228 places, 175 transitions, 1888 flow [2021-03-24 20:17:33,613 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:33,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:33,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2456 transitions. [2021-03-24 20:17:33,614 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4908073541167066 [2021-03-24 20:17:33,614 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2456 transitions. [2021-03-24 20:17:33,614 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2456 transitions. [2021-03-24 20:17:33,614 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:33,614 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2456 transitions. [2021-03-24 20:17:33,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.44444444444446) internal successors, (2456), 18 states have internal predecessors, (2456), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:33,618 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:33,618 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:33,618 INFO L185 Difference]: Start difference. First operand has 215 places, 157 transitions, 1411 flow. Second operand 18 states and 2456 transitions. [2021-03-24 20:17:33,618 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 228 places, 175 transitions, 1888 flow [2021-03-24 20:17:33,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 175 transitions, 1806 flow, removed 12 selfloop flow, removed 15 redundant places. [2021-03-24 20:17:33,628 INFO L241 Difference]: Finished difference. Result has 215 places, 146 transitions, 1263 flow [2021-03-24 20:17:33,628 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1331, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=157, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=138, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1263, PETRI_PLACES=215, PETRI_TRANSITIONS=146} [2021-03-24 20:17:33,628 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 149 predicate places. [2021-03-24 20:17:33,628 INFO L480 AbstractCegarLoop]: Abstraction has has 215 places, 146 transitions, 1263 flow [2021-03-24 20:17:33,628 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:33,628 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:33,628 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:33,628 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable150 [2021-03-24 20:17:33,628 INFO L428 AbstractCegarLoop]: === Iteration 152 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:33,629 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:33,629 INFO L82 PathProgramCache]: Analyzing trace with hash -1470600797, now seen corresponding path program 131 times [2021-03-24 20:17:33,629 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:33,629 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [386069662] [2021-03-24 20:17:33,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:33,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:33,680 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:33,681 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:33,681 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:33,682 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:33,695 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:33,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:33,723 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:33,724 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:33,754 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:33,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:33,805 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:33,805 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:33,868 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:33,868 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:33,892 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:33,893 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:33,917 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:33,918 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:33,963 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:33,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:34,004 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:34,005 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:34,046 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:34,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:34,090 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:34,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:34,137 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:17:34,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:17:34,195 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:17:34,196 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:17:34,264 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:17:34,264 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:17:34,287 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:17:34,288 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:17:34,341 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:17:34,342 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:17:34,392 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:34,392 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:34,424 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:34,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:34,448 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:34,449 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:34,449 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:34,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:34,480 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:34,481 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:34,514 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:34,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:34,545 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:34,545 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:34,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:34,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [386069662] [2021-03-24 20:17:34,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:34,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:34,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [34193521] [2021-03-24 20:17:34,575 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:34,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:34,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:34,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:34,577 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:34,578 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 146 transitions, 1263 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:34,578 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:34,578 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:34,578 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:35,499 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:17:35,666 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-03-24 20:17:35,900 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 20:17:36,246 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:17:36,946 INFO L129 PetriNetUnfolder]: 70/330 cut-off events. [2021-03-24 20:17:36,947 INFO L130 PetriNetUnfolder]: For 1857/1859 co-relation queries the response was YES. [2021-03-24 20:17:36,948 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1654 conditions, 330 events. 70/330 cut-off events. For 1857/1859 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1733 event pairs, 29 based on Foata normal form. 1/331 useless extension candidates. Maximal degree in co-relation 1593. Up to 205 conditions per place. [2021-03-24 20:17:36,949 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 106 selfloop transitions, 21 changer transitions 24/160 dead transitions. [2021-03-24 20:17:36,949 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 160 transitions, 1690 flow [2021-03-24 20:17:36,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:36,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:36,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2021-03-24 20:17:36,951 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49140687450039966 [2021-03-24 20:17:36,951 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2021-03-24 20:17:36,951 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2021-03-24 20:17:36,952 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:36,952 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2021-03-24 20:17:36,953 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:36,955 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:36,955 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:36,955 INFO L185 Difference]: Start difference. First operand has 215 places, 146 transitions, 1263 flow. Second operand 18 states and 2459 transitions. [2021-03-24 20:17:36,955 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 160 transitions, 1690 flow [2021-03-24 20:17:36,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 199 places, 160 transitions, 1612 flow, removed 11 selfloop flow, removed 17 redundant places. [2021-03-24 20:17:36,964 INFO L241 Difference]: Finished difference. Result has 202 places, 134 transitions, 1123 flow [2021-03-24 20:17:36,964 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1189, PETRI_DIFFERENCE_MINUEND_PLACES=182, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=146, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=21, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=125, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=1123, PETRI_PLACES=202, PETRI_TRANSITIONS=134} [2021-03-24 20:17:36,964 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 136 predicate places. [2021-03-24 20:17:36,964 INFO L480 AbstractCegarLoop]: Abstraction has has 202 places, 134 transitions, 1123 flow [2021-03-24 20:17:36,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:36,965 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:36,965 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:36,965 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable151 [2021-03-24 20:17:36,965 INFO L428 AbstractCegarLoop]: === Iteration 153 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:36,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:36,965 INFO L82 PathProgramCache]: Analyzing trace with hash 648664209, now seen corresponding path program 132 times [2021-03-24 20:17:36,965 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:36,965 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504393675] [2021-03-24 20:17:36,965 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:36,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:37,016 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:37,016 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:37,017 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:37,017 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:37,029 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:37,029 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:37,054 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:37,055 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:37,081 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:37,082 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:37,128 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:37,129 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:37,185 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:37,186 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:37,207 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:37,207 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:37,230 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:37,230 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:37,270 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:37,271 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:37,308 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:37,308 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:37,346 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:37,347 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:37,385 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:17:37,386 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:17:37,431 INFO L142 QuantifierPusher]: treesize reduction 21, result has 68.7 percent of original size [2021-03-24 20:17:37,431 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 46 [2021-03-24 20:17:37,480 INFO L142 QuantifierPusher]: treesize reduction 35, result has 59.3 percent of original size [2021-03-24 20:17:37,480 INFO L147 QuantifierPusher]: treesize reduction 7, result has 86.3 percent of original size 44 [2021-03-24 20:17:37,539 INFO L142 QuantifierPusher]: treesize reduction 35, result has 56.8 percent of original size [2021-03-24 20:17:37,540 INFO L147 QuantifierPusher]: treesize reduction 7, result has 84.8 percent of original size 39 [2021-03-24 20:17:37,563 INFO L142 QuantifierPusher]: treesize reduction 40, result has 50.0 percent of original size [2021-03-24 20:17:37,563 INFO L147 QuantifierPusher]: treesize reduction 7, result has 82.5 percent of original size 33 [2021-03-24 20:17:37,618 INFO L142 QuantifierPusher]: treesize reduction 42, result has 48.1 percent of original size [2021-03-24 20:17:37,619 INFO L147 QuantifierPusher]: treesize reduction 6, result has 84.6 percent of original size 33 [2021-03-24 20:17:37,670 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:37,671 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:37,703 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:37,703 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:37,728 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:37,728 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:37,729 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:37,729 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:37,760 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:37,761 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:37,797 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:37,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:37,831 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:37,832 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:37,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:37,865 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504393675] [2021-03-24 20:17:37,865 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:37,865 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:37,865 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043600616] [2021-03-24 20:17:37,865 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:37,865 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:37,865 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:37,865 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:37,867 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:37,868 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 134 transitions, 1123 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:37,868 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:37,868 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:37,868 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:38,813 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2021-03-24 20:17:38,996 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 65 [2021-03-24 20:17:39,211 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 69 [2021-03-24 20:17:39,522 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 71 [2021-03-24 20:17:40,282 INFO L129 PetriNetUnfolder]: 55/270 cut-off events. [2021-03-24 20:17:40,282 INFO L130 PetriNetUnfolder]: For 1453/1455 co-relation queries the response was YES. [2021-03-24 20:17:40,284 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1353 conditions, 270 events. 55/270 cut-off events. For 1453/1455 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1271 event pairs, 18 based on Foata normal form. 1/271 useless extension candidates. Maximal degree in co-relation 1295. Up to 146 conditions per place. [2021-03-24 20:17:40,284 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 91 selfloop transitions, 23 changer transitions 24/147 dead transitions. [2021-03-24 20:17:40,284 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 147 transitions, 1518 flow [2021-03-24 20:17:40,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:40,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:40,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2459 transitions. [2021-03-24 20:17:40,286 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49140687450039966 [2021-03-24 20:17:40,287 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2459 transitions. [2021-03-24 20:17:40,287 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2459 transitions. [2021-03-24 20:17:40,287 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:40,287 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2459 transitions. [2021-03-24 20:17:40,288 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.61111111111111) internal successors, (2459), 18 states have internal predecessors, (2459), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:40,290 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:40,290 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:40,290 INFO L185 Difference]: Start difference. First operand has 202 places, 134 transitions, 1123 flow. Second operand 18 states and 2459 transitions. [2021-03-24 20:17:40,290 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 147 transitions, 1518 flow [2021-03-24 20:17:40,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 186 places, 147 transitions, 1428 flow, removed 15 selfloop flow, removed 21 redundant places. [2021-03-24 20:17:40,297 INFO L241 Difference]: Finished difference. Result has 189 places, 122 transitions, 979 flow [2021-03-24 20:17:40,297 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=1045, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=134, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=23, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=111, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=979, PETRI_PLACES=189, PETRI_TRANSITIONS=122} [2021-03-24 20:17:40,297 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 123 predicate places. [2021-03-24 20:17:40,297 INFO L480 AbstractCegarLoop]: Abstraction has has 189 places, 122 transitions, 979 flow [2021-03-24 20:17:40,298 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:40,298 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:40,298 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:40,298 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable152 [2021-03-24 20:17:40,298 INFO L428 AbstractCegarLoop]: === Iteration 154 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:40,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:40,298 INFO L82 PathProgramCache]: Analyzing trace with hash 2104190707, now seen corresponding path program 133 times [2021-03-24 20:17:40,298 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:40,298 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175076773] [2021-03-24 20:17:40,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:40,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:40,371 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:40,371 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:40,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:40,372 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:40,385 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:40,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:40,411 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:17:40,412 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:17:40,455 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:17:40,456 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:17:40,514 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:40,514 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:40,580 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:17:40,580 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:17:40,658 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:40,658 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:40,659 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:17:40,660 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:40,686 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:17:40,687 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:40,715 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:17:40,715 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:17:40,767 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:40,767 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:40,812 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:40,813 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:40,859 INFO L142 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-03-24 20:17:40,859 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:17:40,909 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:17:40,909 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:17:40,968 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:17:40,968 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:17:41,030 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:17:41,031 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:41,061 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:17:41,061 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:17:41,119 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:17:41,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:41,180 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:17:41,181 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:17:41,213 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:17:41,214 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:17:41,267 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:17:41,267 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:41,298 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:17:41,298 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:41,344 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:17:41,345 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:41,395 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:41,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:41,427 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:41,428 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:41,428 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:17:41,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:17:41,458 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:41,458 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175076773] [2021-03-24 20:17:41,458 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:41,458 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:17:41,458 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000274406] [2021-03-24 20:17:41,458 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:17:41,458 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:41,458 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:17:41,458 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:17:41,460 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:17:41,460 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 122 transitions, 979 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:41,460 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:41,460 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:17:41,460 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:42,161 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2021-03-24 20:17:42,308 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:17:42,470 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:17:42,654 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 66 [2021-03-24 20:17:42,970 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-03-24 20:17:43,322 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:43,533 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:17:43,884 INFO L129 PetriNetUnfolder]: 39/217 cut-off events. [2021-03-24 20:17:43,884 INFO L130 PetriNetUnfolder]: For 934/936 co-relation queries the response was YES. [2021-03-24 20:17:43,885 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1058 conditions, 217 events. 39/217 cut-off events. For 934/936 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 898 event pairs, 15 based on Foata normal form. 1/218 useless extension candidates. Maximal degree in co-relation 1005. Up to 136 conditions per place. [2021-03-24 20:17:43,885 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 87 selfloop transitions, 19 changer transitions 20/131 dead transitions. [2021-03-24 20:17:43,885 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 194 places, 131 transitions, 1293 flow [2021-03-24 20:17:43,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:43,887 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:43,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1594 transitions. [2021-03-24 20:17:43,888 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31854516386890486 [2021-03-24 20:17:43,888 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1594 transitions. [2021-03-24 20:17:43,888 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1594 transitions. [2021-03-24 20:17:43,888 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:43,888 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1594 transitions. [2021-03-24 20:17:43,889 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.55555555555556) internal successors, (1594), 18 states have internal predecessors, (1594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:43,891 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:43,891 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:43,891 INFO L185 Difference]: Start difference. First operand has 189 places, 122 transitions, 979 flow. Second operand 18 states and 1594 transitions. [2021-03-24 20:17:43,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 194 places, 131 transitions, 1293 flow [2021-03-24 20:17:43,895 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 172 places, 131 transitions, 1212 flow, removed 11 selfloop flow, removed 22 redundant places. [2021-03-24 20:17:43,897 INFO L241 Difference]: Finished difference. Result has 173 places, 110 transitions, 823 flow [2021-03-24 20:17:43,897 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=902, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=122, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=19, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=823, PETRI_PLACES=173, PETRI_TRANSITIONS=110} [2021-03-24 20:17:43,897 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 107 predicate places. [2021-03-24 20:17:43,897 INFO L480 AbstractCegarLoop]: Abstraction has has 173 places, 110 transitions, 823 flow [2021-03-24 20:17:43,897 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:43,897 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:43,897 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:43,897 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable153 [2021-03-24 20:17:43,897 INFO L428 AbstractCegarLoop]: === Iteration 155 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:43,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:43,898 INFO L82 PathProgramCache]: Analyzing trace with hash 297555019, now seen corresponding path program 134 times [2021-03-24 20:17:43,898 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:43,898 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1262838830] [2021-03-24 20:17:43,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:43,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:43,956 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:43,956 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:43,957 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:43,957 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:43,972 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:43,972 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:44,001 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:17:44,002 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:17:44,051 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:17:44,052 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:17:44,112 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:44,113 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:44,177 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:17:44,178 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:17:44,257 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:44,257 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:44,258 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:17:44,258 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:44,286 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:17:44,286 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:44,314 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:17:44,314 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:17:44,365 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:44,366 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:44,412 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:44,413 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:44,459 INFO L142 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-03-24 20:17:44,460 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:17:44,508 INFO L142 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-03-24 20:17:44,509 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:17:44,562 INFO L142 QuantifierPusher]: treesize reduction 49, result has 55.5 percent of original size [2021-03-24 20:17:44,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:17:44,628 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-03-24 20:17:44,629 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:44,660 INFO L142 QuantifierPusher]: treesize reduction 54, result has 48.1 percent of original size [2021-03-24 20:17:44,661 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:17:44,721 INFO L142 QuantifierPusher]: treesize reduction 49, result has 53.3 percent of original size [2021-03-24 20:17:44,722 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:44,785 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:17:44,785 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:17:44,819 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:17:44,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:17:44,876 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:17:44,877 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:44,909 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:17:44,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:44,959 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:17:44,960 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:45,013 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:45,014 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:45,046 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:45,046 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:45,047 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:17:45,047 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:17:45,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:45,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1262838830] [2021-03-24 20:17:45,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:45,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:17:45,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630214392] [2021-03-24 20:17:45,077 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:17:45,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:45,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:17:45,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:17:45,078 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:17:45,079 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 110 transitions, 823 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:45,079 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:45,079 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:17:45,079 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:45,885 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:17:46,071 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 61 [2021-03-24 20:17:46,286 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-03-24 20:17:46,629 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 68 [2021-03-24 20:17:46,947 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:47,151 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:17:47,513 INFO L129 PetriNetUnfolder]: 37/191 cut-off events. [2021-03-24 20:17:47,513 INFO L130 PetriNetUnfolder]: For 655/657 co-relation queries the response was YES. [2021-03-24 20:17:47,514 INFO L84 FinitePrefix]: Finished finitePrefix Result has 891 conditions, 191 events. 37/191 cut-off events. For 655/657 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 697 event pairs, 15 based on Foata normal form. 1/192 useless extension candidates. Maximal degree in co-relation 846. Up to 129 conditions per place. [2021-03-24 20:17:47,514 INFO L132 encePairwiseOnDemand]: 259/278 looper letters, 81 selfloop transitions, 15 changer transitions 17/118 dead transitions. [2021-03-24 20:17:47,515 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 179 places, 118 transitions, 1103 flow [2021-03-24 20:17:47,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:47,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:47,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1591 transitions. [2021-03-24 20:17:47,517 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.3179456434852118 [2021-03-24 20:17:47,517 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1591 transitions. [2021-03-24 20:17:47,517 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1591 transitions. [2021-03-24 20:17:47,517 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:47,517 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1591 transitions. [2021-03-24 20:17:47,518 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.38888888888889) internal successors, (1591), 18 states have internal predecessors, (1591), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:47,520 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:47,520 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:47,520 INFO L185 Difference]: Start difference. First operand has 173 places, 110 transitions, 823 flow. Second operand 18 states and 1591 transitions. [2021-03-24 20:17:47,520 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 179 places, 118 transitions, 1103 flow [2021-03-24 20:17:47,523 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 159 places, 118 transitions, 1016 flow, removed 7 selfloop flow, removed 20 redundant places. [2021-03-24 20:17:47,524 INFO L241 Difference]: Finished difference. Result has 160 places, 101 transitions, 700 flow [2021-03-24 20:17:47,525 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=738, PETRI_DIFFERENCE_MINUEND_PLACES=142, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=110, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=95, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=700, PETRI_PLACES=160, PETRI_TRANSITIONS=101} [2021-03-24 20:17:47,525 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 94 predicate places. [2021-03-24 20:17:47,525 INFO L480 AbstractCegarLoop]: Abstraction has has 160 places, 101 transitions, 700 flow [2021-03-24 20:17:47,525 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:47,525 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:47,525 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:47,525 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable154 [2021-03-24 20:17:47,525 INFO L428 AbstractCegarLoop]: === Iteration 156 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:47,525 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:47,525 INFO L82 PathProgramCache]: Analyzing trace with hash -245321189, now seen corresponding path program 135 times [2021-03-24 20:17:47,525 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:47,526 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474977005] [2021-03-24 20:17:47,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:47,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:47,596 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:47,596 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:47,597 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:47,598 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:47,612 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:47,612 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:47,640 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:17:47,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:17:47,689 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:17:47,689 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:17:47,753 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:47,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:47,827 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:17:47,828 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:17:47,915 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:47,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:47,917 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:17:47,917 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:47,948 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:17:47,949 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:47,980 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:17:47,981 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:17:48,038 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:48,039 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:48,090 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:48,091 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:48,143 INFO L142 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-03-24 20:17:48,143 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:17:48,197 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:17:48,197 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:17:48,262 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:17:48,263 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:48,292 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:17:48,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:17:48,349 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:17:48,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:17:48,406 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:17:48,407 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:48,465 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:17:48,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:17:48,500 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:17:48,501 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:17:48,558 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:17:48,558 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:48,592 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:17:48,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:48,644 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:17:48,644 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:48,700 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:48,700 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:48,736 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:48,736 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:48,737 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:17:48,737 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:17:48,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:48,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474977005] [2021-03-24 20:17:48,770 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:48,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:17:48,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663080080] [2021-03-24 20:17:48,770 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:17:48,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:48,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:17:48,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:17:48,772 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:17:48,772 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 160 places, 101 transitions, 700 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:48,772 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:48,772 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:17:48,772 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:49,504 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2021-03-24 20:17:49,659 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:17:49,839 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:17:50,123 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:17:50,363 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-03-24 20:17:50,717 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:50,939 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-03-24 20:17:51,291 INFO L129 PetriNetUnfolder]: 36/178 cut-off events. [2021-03-24 20:17:51,291 INFO L130 PetriNetUnfolder]: For 519/521 co-relation queries the response was YES. [2021-03-24 20:17:51,292 INFO L84 FinitePrefix]: Finished finitePrefix Result has 789 conditions, 178 events. 36/178 cut-off events. For 519/521 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 615 event pairs, 15 based on Foata normal form. 1/179 useless extension candidates. Maximal degree in co-relation 747. Up to 118 conditions per place. [2021-03-24 20:17:51,292 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 74 selfloop transitions, 16 changer transitions 14/109 dead transitions. [2021-03-24 20:17:51,292 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 109 transitions, 955 flow [2021-03-24 20:17:51,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:51,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:51,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1590 transitions. [2021-03-24 20:17:51,295 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31774580335731417 [2021-03-24 20:17:51,295 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1590 transitions. [2021-03-24 20:17:51,295 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1590 transitions. [2021-03-24 20:17:51,295 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:51,295 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1590 transitions. [2021-03-24 20:17:51,296 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.33333333333333) internal successors, (1590), 18 states have internal predecessors, (1590), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:51,298 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:51,298 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:51,298 INFO L185 Difference]: Start difference. First operand has 160 places, 101 transitions, 700 flow. Second operand 18 states and 1590 transitions. [2021-03-24 20:17:51,298 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 166 places, 109 transitions, 955 flow [2021-03-24 20:17:51,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 150 places, 109 transitions, 897 flow, removed 6 selfloop flow, removed 16 redundant places. [2021-03-24 20:17:51,301 INFO L241 Difference]: Finished difference. Result has 151 places, 95 transitions, 641 flow [2021-03-24 20:17:51,301 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=645, PETRI_DIFFERENCE_MINUEND_PLACES=133, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=641, PETRI_PLACES=151, PETRI_TRANSITIONS=95} [2021-03-24 20:17:51,301 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 85 predicate places. [2021-03-24 20:17:51,301 INFO L480 AbstractCegarLoop]: Abstraction has has 151 places, 95 transitions, 641 flow [2021-03-24 20:17:51,302 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:51,302 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:51,302 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:51,302 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable155 [2021-03-24 20:17:51,302 INFO L428 AbstractCegarLoop]: === Iteration 157 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:51,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:51,302 INFO L82 PathProgramCache]: Analyzing trace with hash 261682283, now seen corresponding path program 136 times [2021-03-24 20:17:51,302 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:51,302 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399337083] [2021-03-24 20:17:51,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:51,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:51,351 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:51,352 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:51,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:51,353 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:51,366 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:51,367 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:51,395 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:51,396 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:51,426 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:51,427 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:51,478 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:51,479 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:51,542 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:51,543 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:51,567 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:51,568 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:51,593 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:51,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:51,640 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:51,641 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:51,683 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:51,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:51,726 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:51,727 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:51,771 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:51,772 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:51,818 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:17:51,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:51,857 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:17:51,858 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:51,879 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:17:51,880 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:51,916 INFO L142 QuantifierPusher]: treesize reduction 31, result has 46.6 percent of original size [2021-03-24 20:17:51,916 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:51,965 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:17:51,965 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:52,019 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:52,020 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:52,056 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:52,056 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:52,084 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:52,085 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:52,085 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:52,086 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:52,121 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:52,122 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:52,159 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:52,160 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:52,195 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:52,195 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:52,229 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:52,229 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399337083] [2021-03-24 20:17:52,230 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:52,230 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:52,230 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938683488] [2021-03-24 20:17:52,230 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:52,230 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:52,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:52,230 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:52,232 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:52,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 95 transitions, 641 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:52,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:52,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:52,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:52,952 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:17:53,100 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-24 20:17:53,260 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:17:53,462 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:17:53,721 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 20:17:53,962 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-03-24 20:17:54,755 INFO L129 PetriNetUnfolder]: 43/195 cut-off events. [2021-03-24 20:17:54,755 INFO L130 PetriNetUnfolder]: For 580/582 co-relation queries the response was YES. [2021-03-24 20:17:54,756 INFO L84 FinitePrefix]: Finished finitePrefix Result has 842 conditions, 195 events. 43/195 cut-off events. For 580/582 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 731 event pairs, 16 based on Foata normal form. 1/196 useless extension candidates. Maximal degree in co-relation 802. Up to 93 conditions per place. [2021-03-24 20:17:54,756 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 59 selfloop transitions, 17 changer transitions 22/107 dead transitions. [2021-03-24 20:17:54,756 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 157 places, 107 transitions, 920 flow [2021-03-24 20:17:54,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:54,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:54,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2452 transitions. [2021-03-24 20:17:54,759 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.49000799360511593 [2021-03-24 20:17:54,759 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2452 transitions. [2021-03-24 20:17:54,759 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2452 transitions. [2021-03-24 20:17:54,759 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:54,759 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2452 transitions. [2021-03-24 20:17:54,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.22222222222223) internal successors, (2452), 18 states have internal predecessors, (2452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:54,762 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:54,762 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:54,762 INFO L185 Difference]: Start difference. First operand has 151 places, 95 transitions, 641 flow. Second operand 18 states and 2452 transitions. [2021-03-24 20:17:54,762 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 157 places, 107 transitions, 920 flow [2021-03-24 20:17:54,765 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 107 transitions, 877 flow, removed 2 selfloop flow, removed 14 redundant places. [2021-03-24 20:17:54,766 INFO L241 Difference]: Finished difference. Result has 146 places, 85 transitions, 548 flow [2021-03-24 20:17:54,766 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=600, PETRI_DIFFERENCE_MINUEND_PLACES=126, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=78, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=548, PETRI_PLACES=146, PETRI_TRANSITIONS=85} [2021-03-24 20:17:54,766 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 80 predicate places. [2021-03-24 20:17:54,766 INFO L480 AbstractCegarLoop]: Abstraction has has 146 places, 85 transitions, 548 flow [2021-03-24 20:17:54,766 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:54,767 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:54,767 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:54,767 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable156 [2021-03-24 20:17:54,767 INFO L428 AbstractCegarLoop]: === Iteration 158 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:54,767 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:54,767 INFO L82 PathProgramCache]: Analyzing trace with hash -1920213263, now seen corresponding path program 137 times [2021-03-24 20:17:54,767 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:54,767 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810537896] [2021-03-24 20:17:54,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:54,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:54,819 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:54,819 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:54,820 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:54,820 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:54,834 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:54,834 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:54,862 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:17:54,863 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:54,893 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:17:54,894 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:17:54,945 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:17:54,945 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:17:55,008 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:17:55,009 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:55,033 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:17:55,033 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:55,058 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:17:55,059 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:17:55,105 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:55,105 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:55,148 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:17:55,148 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:17:55,192 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:55,192 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:55,239 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:17:55,239 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:55,286 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:17:55,287 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:17:55,326 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:17:55,327 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:55,349 INFO L142 QuantifierPusher]: treesize reduction 27, result has 50.0 percent of original size [2021-03-24 20:17:55,350 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:55,385 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:17:55,385 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:17:55,423 INFO L142 QuantifierPusher]: treesize reduction 16, result has 61.0 percent of original size [2021-03-24 20:17:55,424 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 25 [2021-03-24 20:17:55,458 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:17:55,459 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:55,494 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:17:55,495 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:55,523 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:55,524 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:55,524 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:17:55,525 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:55,560 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:17:55,560 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:17:55,598 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:17:55,599 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:17:55,634 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:17:55,635 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:17:55,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:55,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810537896] [2021-03-24 20:17:55,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:55,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:17:55,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756094727] [2021-03-24 20:17:55,668 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:17:55,668 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:55,669 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:17:55,669 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:17:55,670 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:17:55,671 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 146 places, 85 transitions, 548 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:55,671 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:55,671 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:17:55,671 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:17:56,386 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:17:56,536 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-24 20:17:56,708 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:17:56,908 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:17:57,185 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 67 [2021-03-24 20:17:57,503 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 57 [2021-03-24 20:17:57,774 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 59 [2021-03-24 20:17:58,143 INFO L129 PetriNetUnfolder]: 35/171 cut-off events. [2021-03-24 20:17:58,143 INFO L130 PetriNetUnfolder]: For 570/572 co-relation queries the response was YES. [2021-03-24 20:17:58,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 744 conditions, 171 events. 35/171 cut-off events. For 570/572 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 583 event pairs, 9 based on Foata normal form. 3/174 useless extension candidates. Maximal degree in co-relation 703. Up to 41 conditions per place. [2021-03-24 20:17:58,144 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 42 selfloop transitions, 18 changer transitions 29/98 dead transitions. [2021-03-24 20:17:58,144 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 98 transitions, 816 flow [2021-03-24 20:17:58,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:17:58,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:17:58,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2455 transitions. [2021-03-24 20:17:58,147 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.490607513988809 [2021-03-24 20:17:58,147 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2455 transitions. [2021-03-24 20:17:58,147 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2455 transitions. [2021-03-24 20:17:58,147 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:17:58,147 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2455 transitions. [2021-03-24 20:17:58,148 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 136.38888888888889) internal successors, (2455), 18 states have internal predecessors, (2455), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:58,150 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:58,150 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:58,150 INFO L185 Difference]: Start difference. First operand has 146 places, 85 transitions, 548 flow. Second operand 18 states and 2455 transitions. [2021-03-24 20:17:58,150 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 98 transitions, 816 flow [2021-03-24 20:17:58,152 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 134 places, 98 transitions, 756 flow, removed 12 selfloop flow, removed 19 redundant places. [2021-03-24 20:17:58,153 INFO L241 Difference]: Finished difference. Result has 136 places, 68 transitions, 413 flow [2021-03-24 20:17:58,153 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=500, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=413, PETRI_PLACES=136, PETRI_TRANSITIONS=68} [2021-03-24 20:17:58,153 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 70 predicate places. [2021-03-24 20:17:58,153 INFO L480 AbstractCegarLoop]: Abstraction has has 136 places, 68 transitions, 413 flow [2021-03-24 20:17:58,154 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:58,154 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:17:58,154 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:17:58,154 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable157 [2021-03-24 20:17:58,154 INFO L428 AbstractCegarLoop]: === Iteration 159 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:17:58,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:17:58,154 INFO L82 PathProgramCache]: Analyzing trace with hash 1285704135, now seen corresponding path program 138 times [2021-03-24 20:17:58,154 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:17:58,154 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267539101] [2021-03-24 20:17:58,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:17:58,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:17:58,211 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:58,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:17:58,212 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:17:58,212 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:17:58,226 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:17:58,227 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:17:58,256 INFO L142 QuantifierPusher]: treesize reduction 17, result has 71.2 percent of original size [2021-03-24 20:17:58,256 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 42 [2021-03-24 20:17:58,304 INFO L142 QuantifierPusher]: treesize reduction 27, result has 67.1 percent of original size [2021-03-24 20:17:58,305 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 55 [2021-03-24 20:17:58,368 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:58,369 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:58,442 INFO L142 QuantifierPusher]: treesize reduction 27, result has 73.5 percent of original size [2021-03-24 20:17:58,442 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 75 [2021-03-24 20:17:58,529 INFO L142 QuantifierPusher]: treesize reduction 27, result has 72.7 percent of original size [2021-03-24 20:17:58,530 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 72 [2021-03-24 20:17:58,531 INFO L142 QuantifierPusher]: treesize reduction 17, result has 70.7 percent of original size [2021-03-24 20:17:58,531 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:58,562 INFO L142 QuantifierPusher]: treesize reduction 17, result has 68.5 percent of original size [2021-03-24 20:17:58,562 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 37 [2021-03-24 20:17:58,593 INFO L142 QuantifierPusher]: treesize reduction 24, result has 67.1 percent of original size [2021-03-24 20:17:58,594 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 49 [2021-03-24 20:17:58,650 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:58,651 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:58,701 INFO L142 QuantifierPusher]: treesize reduction 24, result has 63.1 percent of original size [2021-03-24 20:17:58,702 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 41 [2021-03-24 20:17:58,753 INFO L142 QuantifierPusher]: treesize reduction 24, result has 62.5 percent of original size [2021-03-24 20:17:58,754 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 40 [2021-03-24 20:17:58,807 INFO L142 QuantifierPusher]: treesize reduction 47, result has 56.5 percent of original size [2021-03-24 20:17:58,808 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 61 [2021-03-24 20:17:58,874 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:17:58,874 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:58,904 INFO L142 QuantifierPusher]: treesize reduction 52, result has 49.0 percent of original size [2021-03-24 20:17:58,905 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 50 [2021-03-24 20:17:58,965 INFO L142 QuantifierPusher]: treesize reduction 47, result has 54.4 percent of original size [2021-03-24 20:17:58,966 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 56 [2021-03-24 20:17:59,027 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:17:59,028 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:17:59,061 INFO L142 QuantifierPusher]: treesize reduction 28, result has 44.0 percent of original size [2021-03-24 20:17:59,062 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 22 [2021-03-24 20:17:59,096 INFO L142 QuantifierPusher]: treesize reduction 36, result has 52.0 percent of original size [2021-03-24 20:17:59,097 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 39 [2021-03-24 20:17:59,154 INFO L142 QuantifierPusher]: treesize reduction 36, result has 48.6 percent of original size [2021-03-24 20:17:59,154 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:59,188 INFO L142 QuantifierPusher]: treesize reduction 46, result has 37.8 percent of original size [2021-03-24 20:17:59,189 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:17:59,240 INFO L142 QuantifierPusher]: treesize reduction 34, result has 50.0 percent of original size [2021-03-24 20:17:59,241 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:17:59,296 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:59,296 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:59,331 INFO L142 QuantifierPusher]: treesize reduction 14, result has 50.0 percent of original size [2021-03-24 20:17:59,332 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 14 [2021-03-24 20:17:59,332 INFO L142 QuantifierPusher]: treesize reduction 14, result has 39.1 percent of original size [2021-03-24 20:17:59,333 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-03-24 20:17:59,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:17:59,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267539101] [2021-03-24 20:17:59,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:17:59,365 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2021-03-24 20:17:59,365 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2017366030] [2021-03-24 20:17:59,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-03-24 20:17:59,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:17:59,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-03-24 20:17:59,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2021-03-24 20:17:59,367 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 85 out of 278 [2021-03-24 20:17:59,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 136 places, 68 transitions, 413 flow. Second operand has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:17:59,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:17:59,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 85 of 278 [2021-03-24 20:17:59,369 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:18:00,106 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2021-03-24 20:18:00,264 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 57 [2021-03-24 20:18:00,439 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 62 [2021-03-24 20:18:00,697 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 64 [2021-03-24 20:18:01,050 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 57 [2021-03-24 20:18:01,264 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2021-03-24 20:18:01,502 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 65 [2021-03-24 20:18:01,867 INFO L129 PetriNetUnfolder]: 17/106 cut-off events. [2021-03-24 20:18:01,867 INFO L130 PetriNetUnfolder]: For 273/273 co-relation queries the response was YES. [2021-03-24 20:18:01,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 456 conditions, 106 events. 17/106 cut-off events. For 273/273 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 225 event pairs, 11 based on Foata normal form. 1/107 useless extension candidates. Maximal degree in co-relation 420. Up to 54 conditions per place. [2021-03-24 20:18:01,868 INFO L132 encePairwiseOnDemand]: 260/278 looper letters, 34 selfloop transitions, 12 changer transitions 20/71 dead transitions. [2021-03-24 20:18:01,868 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 143 places, 71 transitions, 556 flow [2021-03-24 20:18:01,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:18:01,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:18:01,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 1587 transitions. [2021-03-24 20:18:01,870 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.31714628297362113 [2021-03-24 20:18:01,870 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 1587 transitions. [2021-03-24 20:18:01,870 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 1587 transitions. [2021-03-24 20:18:01,870 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:18:01,871 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 1587 transitions. [2021-03-24 20:18:01,871 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 88.16666666666667) internal successors, (1587), 18 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:01,873 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:01,873 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:01,873 INFO L185 Difference]: Start difference. First operand has 136 places, 68 transitions, 413 flow. Second operand 18 states and 1587 transitions. [2021-03-24 20:18:01,873 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 143 places, 71 transitions, 556 flow [2021-03-24 20:18:01,874 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 71 transitions, 466 flow, removed 7 selfloop flow, removed 29 redundant places. [2021-03-24 20:18:01,875 INFO L241 Difference]: Finished difference. Result has 114 places, 51 transitions, 259 flow [2021-03-24 20:18:01,875 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=322, PETRI_DIFFERENCE_MINUEND_PLACES=97, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=259, PETRI_PLACES=114, PETRI_TRANSITIONS=51} [2021-03-24 20:18:01,875 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 48 predicate places. [2021-03-24 20:18:01,875 INFO L480 AbstractCegarLoop]: Abstraction has has 114 places, 51 transitions, 259 flow [2021-03-24 20:18:01,875 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 86.5) internal successors, (2076), 24 states have internal predecessors, (2076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:01,875 INFO L255 CegarLoopForPetriNet]: Found error trace [2021-03-24 20:18:01,876 INFO L263 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-24 20:18:01,876 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable158 [2021-03-24 20:18:01,876 INFO L428 AbstractCegarLoop]: === Iteration 160 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-24 20:18:01,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-24 20:18:01,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1884094643, now seen corresponding path program 139 times [2021-03-24 20:18:01,876 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-24 20:18:01,876 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99534014] [2021-03-24 20:18:01,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-24 20:18:01,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-24 20:18:01,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:18:01,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-24 20:18:01,946 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-24 20:18:01,947 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-24 20:18:01,962 INFO L142 QuantifierPusher]: treesize reduction 4, result has 87.1 percent of original size [2021-03-24 20:18:01,963 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:18:01,998 INFO L142 QuantifierPusher]: treesize reduction 33, result has 45.0 percent of original size [2021-03-24 20:18:01,998 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:18:02,029 INFO L142 QuantifierPusher]: treesize reduction 34, result has 56.4 percent of original size [2021-03-24 20:18:02,030 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 44 [2021-03-24 20:18:02,082 INFO L142 QuantifierPusher]: treesize reduction 33, result has 65.3 percent of original size [2021-03-24 20:18:02,083 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 62 [2021-03-24 20:18:02,148 INFO L142 QuantifierPusher]: treesize reduction 15, result has 71.7 percent of original size [2021-03-24 20:18:02,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:18:02,174 INFO L142 QuantifierPusher]: treesize reduction 15, result has 69.4 percent of original size [2021-03-24 20:18:02,175 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:18:02,201 INFO L142 QuantifierPusher]: treesize reduction 22, result has 66.2 percent of original size [2021-03-24 20:18:02,202 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 43 [2021-03-24 20:18:02,248 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:18:02,249 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:18:02,292 INFO L142 QuantifierPusher]: treesize reduction 22, result has 61.4 percent of original size [2021-03-24 20:18:02,293 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 35 [2021-03-24 20:18:02,338 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:18:02,338 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:18:02,384 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.7 percent of original size [2021-03-24 20:18:02,384 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 34 [2021-03-24 20:18:02,432 INFO L142 QuantifierPusher]: treesize reduction 22, result has 63.3 percent of original size [2021-03-24 20:18:02,432 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 38 [2021-03-24 20:18:02,470 INFO L142 QuantifierPusher]: treesize reduction 22, result has 60.0 percent of original size [2021-03-24 20:18:02,471 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:18:02,492 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:18:02,493 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:18:02,543 INFO L142 QuantifierPusher]: treesize reduction 31, result has 46.6 percent of original size [2021-03-24 20:18:02,544 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 27 [2021-03-24 20:18:02,593 INFO L142 QuantifierPusher]: treesize reduction 26, result has 55.9 percent of original size [2021-03-24 20:18:02,593 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 33 [2021-03-24 20:18:02,648 INFO L142 QuantifierPusher]: treesize reduction 26, result has 46.9 percent of original size [2021-03-24 20:18:02,648 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:18:02,684 INFO L142 QuantifierPusher]: treesize reduction 14, result has 66.7 percent of original size [2021-03-24 20:18:02,684 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 28 [2021-03-24 20:18:02,712 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:18:02,713 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:18:02,713 INFO L142 QuantifierPusher]: treesize reduction 24, result has 41.5 percent of original size [2021-03-24 20:18:02,714 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:18:02,749 INFO L142 QuantifierPusher]: treesize reduction 14, result has 62.2 percent of original size [2021-03-24 20:18:02,750 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-03-24 20:18:02,787 INFO L142 QuantifierPusher]: treesize reduction 10, result has 63.0 percent of original size [2021-03-24 20:18:02,787 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-24 20:18:02,821 INFO L142 QuantifierPusher]: treesize reduction 9, result has 59.1 percent of original size [2021-03-24 20:18:02,821 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-24 20:18:02,854 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-24 20:18:02,855 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99534014] [2021-03-24 20:18:02,855 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-24 20:18:02,855 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2021-03-24 20:18:02,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634140000] [2021-03-24 20:18:02,855 INFO L460 AbstractCegarLoop]: Interpolant automaton has 23 states [2021-03-24 20:18:02,855 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-24 20:18:02,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2021-03-24 20:18:02,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=452, Unknown=0, NotChecked=0, Total=506 [2021-03-24 20:18:02,857 INFO L508 CegarLoopForPetriNet]: Number of universal loopers: 133 out of 278 [2021-03-24 20:18:02,858 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 51 transitions, 259 flow. Second operand has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:02,858 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-03-24 20:18:02,858 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 133 of 278 [2021-03-24 20:18:02,858 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-03-24 20:18:03,577 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 53 [2021-03-24 20:18:03,727 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 56 [2021-03-24 20:18:03,889 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 60 [2021-03-24 20:18:04,082 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-03-24 20:18:04,321 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-03-24 20:18:04,562 WARN L205 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-03-24 20:18:05,216 INFO L129 PetriNetUnfolder]: 16/83 cut-off events. [2021-03-24 20:18:05,216 INFO L130 PetriNetUnfolder]: For 160/160 co-relation queries the response was YES. [2021-03-24 20:18:05,216 INFO L84 FinitePrefix]: Finished finitePrefix Result has 315 conditions, 83 events. 16/83 cut-off events. For 160/160 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 146 event pairs, 4 based on Foata normal form. 1/84 useless extension candidates. Maximal degree in co-relation 290. Up to 25 conditions per place. [2021-03-24 20:18:05,217 INFO L132 encePairwiseOnDemand]: 261/278 looper letters, 0 selfloop transitions, 0 changer transitions 52/52 dead transitions. [2021-03-24 20:18:05,217 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 52 transitions, 345 flow [2021-03-24 20:18:05,217 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-24 20:18:05,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2021-03-24 20:18:05,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 2431 transitions. [2021-03-24 20:18:05,218 INFO L553 CegarLoopForPetriNet]: DFA transition density 0.4858113509192646 [2021-03-24 20:18:05,218 INFO L72 ComplementDD]: Start complementDD. Operand 18 states and 2431 transitions. [2021-03-24 20:18:05,218 INFO L73 IsDeterministic]: Start isDeterministic. Operand 18 states and 2431 transitions. [2021-03-24 20:18:05,218 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-03-24 20:18:05,218 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 18 states and 2431 transitions. [2021-03-24 20:18:05,220 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 19 states, 18 states have (on average 135.05555555555554) internal successors, (2431), 18 states have internal predecessors, (2431), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:05,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:05,222 INFO L81 ComplementDD]: Finished complementDD. Result has 19 states, 19 states have (on average 278.0) internal successors, (5282), 19 states have internal predecessors, (5282), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:05,222 INFO L185 Difference]: Start difference. First operand has 114 places, 51 transitions, 259 flow. Second operand 18 states and 2431 transitions. [2021-03-24 20:18:05,222 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 52 transitions, 345 flow [2021-03-24 20:18:05,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 86 places, 52 transitions, 266 flow, removed 2 selfloop flow, removed 27 redundant places. [2021-03-24 20:18:05,223 INFO L241 Difference]: Finished difference. Result has 86 places, 0 transitions, 0 flow [2021-03-24 20:18:05,223 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=278, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=69, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=50, PETRI_DIFFERENCE_SUBTRAHEND_STATES=18, PETRI_FLOW=0, PETRI_PLACES=86, PETRI_TRANSITIONS=0} [2021-03-24 20:18:05,223 INFO L343 CegarLoopForPetriNet]: 66 programPoint places, 20 predicate places. [2021-03-24 20:18:05,223 INFO L480 AbstractCegarLoop]: Abstraction has has 86 places, 0 transitions, 0 flow [2021-03-24 20:18:05,224 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 23 states, 23 states have (on average 134.3913043478261) internal successors, (3091), 23 states have internal predecessors, (3091), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-24 20:18:05,224 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable159 [2021-03-24 20:18:05,226 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.03 08:18:05 BasicIcfg [2021-03-24 20:18:05,227 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-24 20:18:05,227 INFO L168 Benchmark]: Toolchain (without parser) took 576981.44 ms. Allocated memory was 255.9 MB in the beginning and 1.4 GB in the end (delta: 1.1 GB). Free memory was 231.1 MB in the beginning and 783.6 MB in the end (delta: -552.5 MB). Peak memory consumption was 587.2 MB. Max. memory is 16.0 GB. [2021-03-24 20:18:05,227 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.2 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-24 20:18:05,227 INFO L168 Benchmark]: CACSL2BoogieTranslator took 818.08 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 230.6 MB in the beginning and 357.3 MB in the end (delta: -126.7 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.0 GB. [2021-03-24 20:18:05,227 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.29 ms. Allocated memory is still 385.9 MB. Free memory was 357.3 MB in the beginning and 354.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 20:18:05,227 INFO L168 Benchmark]: Boogie Preprocessor took 43.35 ms. Allocated memory is still 385.9 MB. Free memory was 354.1 MB in the beginning and 352.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-24 20:18:05,227 INFO L168 Benchmark]: RCFGBuilder took 608.81 ms. Allocated memory is still 385.9 MB. Free memory was 352.0 MB in the beginning and 304.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-03-24 20:18:05,228 INFO L168 Benchmark]: TraceAbstraction took 575443.99 ms. Allocated memory was 385.9 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 303.8 MB in the beginning and 783.6 MB in the end (delta: -479.8 MB). Peak memory consumption was 529.9 MB. Max. memory is 16.0 GB. [2021-03-24 20:18:05,228 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 255.9 MB. Free memory is still 237.2 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 818.08 ms. Allocated memory was 255.9 MB in the beginning and 385.9 MB in the end (delta: 130.0 MB). Free memory was 230.6 MB in the beginning and 357.3 MB in the end (delta: -126.7 MB). Peak memory consumption was 63.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 61.29 ms. Allocated memory is still 385.9 MB. Free memory was 357.3 MB in the beginning and 354.1 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 43.35 ms. Allocated memory is still 385.9 MB. Free memory was 354.1 MB in the beginning and 352.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 608.81 ms. Allocated memory is still 385.9 MB. Free memory was 352.0 MB in the beginning and 304.8 MB in the end (delta: 47.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 575443.99 ms. Allocated memory was 385.9 MB in the beginning and 1.4 GB in the end (delta: 1.0 GB). Free memory was 303.8 MB in the beginning and 783.6 MB in the end (delta: -479.8 MB). Peak memory consumption was 529.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 74874.1ms, 151 PlacesBefore, 66 PlacesAfterwards, 153 TransitionsBefore, 66 TransitionsAfterwards, 2492 CoEnabledTransitionPairs, 5 FixpointIterations, 62 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 9 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 113 TotalNumberOfCompositions, 3461 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1880, positive: 1794, positive conditional: 0, positive unconditional: 1794, negative: 86, negative conditional: 0, negative unconditional: 86, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1536, positive: 1490, positive conditional: 0, positive unconditional: 1490, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1536, positive: 1490, positive conditional: 0, positive unconditional: 1490, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1536, positive: 1485, positive conditional: 0, positive unconditional: 1485, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 51, positive: 5, positive conditional: 0, positive unconditional: 5, negative: 24, negative conditional: 0, negative unconditional: 24, unknown: 22, unknown conditional: 0, unknown unconditional: 22] , SemanticIndependenceRelation.Query Time [ms]: [ total: 70887, positive: 31, positive conditional: 0, positive unconditional: 31, negative: 1085, negative conditional: 0, negative unconditional: 1085, unknown: 69771, unknown conditional: 0, unknown unconditional: 69771] ], Cache Queries: [ total: 1880, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 40, negative conditional: 0, negative unconditional: 40, unknown: 1536, unknown conditional: 0, unknown unconditional: 1536] , Statistics on independence cache: Total cache size (in pairs): 151, Positive cache size: 122, Positive conditional cache size: 0, Positive unconditional cache size: 122, Negative cache size: 29, Negative conditional cache size: 0, Negative unconditional cache size: 29 - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - PositiveResult [Line: 1693]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 140 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 4.4ms, RemoveRedundantFlowTime: 0.0ms, RemoveRedundantFlowUnfoldingTime: 0.0ms, BackfoldingTime: 0.0ms, BackfoldingUnfoldingTime: 0.0ms, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: SAFE, OverallTime: 575351.3ms, OverallIterations: 160, TraceHistogramMax: 1, EmptinessCheckTime: 0.0ms, AutomataDifference: 375355.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 74985.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 2686 SDtfs, 23852 SDslu, 14184 SDs, 0 SdLazy, 116775 SolverSat, 9217 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 70233.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6107 GetRequests, 359 SyntacticMatches, 323 SemanticMatches, 5425 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26302 ImplicationChecksByTransitivity, 315085.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=7517occurred in iteration=50, InterpolantAutomatonStates: 2767, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 256.4ms SsaConstructionTime, 2451.4ms SatisfiabilityAnalysisTime, 120998.8ms InterpolantComputationTime, 6408 NumberOfCodeBlocks, 6408 NumberOfCodeBlocksAsserted, 160 NumberOfCheckSat, 6248 ConstructedInterpolants, 0 QuantifiedInterpolants, 156911 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 160 InterpolantComputations, 160 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...